; Cabling Standards
Documents
Resources
Learning Center
Upload
Plans & pricing Sign in
Sign Out
Your Federal Quarterly Tax Payments are due April 15th Get Help Now >>

Cabling Standards

VIEWS: 220 PAGES: 42

  • pg 1
									THE ANIXTER STANDARDS
     REFERENCE GUIDE
               December 2002




       A REFERENCE GUIDE TO:

          ISO/IEC 11801 : ISS2

          ANSI/TIA/EIA-568-B

          ANSI/TIA/EIA-569-A

          ANSI/TIA/EIA-606-A
    INTRODUCTION                                               6    ANSI/TIA/EIA-568-B                                       21
     ANIXTER: THE CABLING SYSTEMS EXPERTS                       6    PURPOSE OF THE STANDARD                                 21
       SCOPE OF THIS HANDBOOK                                   6      The Standard Specifies                                21


    ISO/IEC 11801                                              7    ANSI/TIA/EIA-568-B.1                                     22
     2ND EDITION                                                7    GENERAL REQUIREMENTS                                    22
       CABLING FOR CUSTOMER PREMISES                            7      SIX SUBSYSTEMS OF A STRUCTURED CABLING SYSTEM         22
          Cabling Subsystems                                    7         1. Building Entrance                               22
          Campus Backbone Cabling Subsystem                     7         2. Equipment Room                                  22
          Building Backbone Cabling Subsystem                   8         3. Backbone Cabling                                23
          Horizontal Cabling Subsystem                          8         4. Telecommunications Room                         25
          Distributors                                          9         5. Horizontal Cabling                              25
          Telecommunications Outlet (TO)                       10            Multi-user Telecommunications Outlet Assembly   26
          Single-User TO Assembly                              10            Consolidation Point                             27
          Multi-User TO Assembly                               10            Centralised Optical Fibre Cabling               28
          Consolidation Point                                  10         6. Work Area                                       29
          Floor Distributor (FD) & Building Distributor (BD)   11            Work Area Components                            29
          Performance of Balanced Cabling                      11            Telecommunications Outlet                       29
          Layout                                               12    CHANNEL AND PERMANENT LINK                              31
          Insertion Loss/Attenuation                           13         Definitions of Electrical Parameters               32
          Classification of Balanced Cabling                   15
          Balanced Cabling Performance                         15
                                                                    ANSI/TIA/EIA-568-B.2                                     37
          Optical Fibre Cables                                 15
          Multimode Optical Fibre Cables                       16    BALANCED TWISTED-PAIR CABLING COMPONENTS                37
          Singlemode Optical Fibre Cables                      17      100 OHM UNSHIELDED TWISTED-PAIR CABLING SYSTEMS       37
          Connecting Hardware                                  17         Horizontal Cable                                   37
          Telecommunications Outlet Requirements               18            Category 3                                      37
          Optical Fibre Hardware                               19            Category 5e                                     37
          Screening Practices                                  19            Category 6                                      37
          Test Procedures                                      19         Bundled & Hybrid Cable                             40
                                                                          UTP Connecting Hardware                            40
                                                                          UTP Patch Cords                                    42




2                                                                                                                                 3
    ANSI/TIA/EIA-568-B.3                                         Plenum/Ceiling                     62
                                                     45          Conduit                            62
      OPTICAL FIBRE CABLING COMPONENTS               45          Cable Trays                        62
           Optical Fibre Connector                   46          Perimeter Pathways                 63
           Optical Fibre Telecommunications Outlet   46       CONSOLIDATION POINTS & MUTOA’S        64
           Patch Cords                               47       ELECTROMAGNETIC INTERFERENCE          65
                                                              FIRESTOPS                             66

    ISO/TIA COMPARISON                               48
                                                          ANSI/TIA/EIA-606-A                        68
      GUIDE TO DIFFERENCES IN STANDARDS              48
        CATEGORY 6 TO CLASS E COMPARISON             48    PURPOSE OF THE STANDARD                  68
                                                           ADMINISTRATION SYSTEM                    69
                                                           CLASSES OF ADMINISTRATION                70
    ANSI/TIA/EIA-569-A                               54         CLASS 1                             70
      PURPOSE OF THE STANDARD                        54            Infrastructure Identifiers       70
      DESIGN CONSIDERATIONS                          55            Required Records                 71
        SERVICE ENTRANCE PATHWAYS                    55         CLASS 2                             71
        ENTRANCE FACILITIES                          56            Infrastructure Identifiers       71
        EQUIPMENT ROOM                               57            Required Records                 72
           Location                                  58         CLASS 3                             73
           Perimeters                                58            Infrastructure Identifiers       73
           Limited Access                            58            Required Records                 73
           Other                                     58         CLASS 4                             74
           HVAC                                      58            Infrastructure Identifiers       74
           Lighting                                  58            Required Records                 74
           Electrical                                59    COLOUR CODING IDENTIFICATION             75
           Dust                                      59         Termination Fields                  75
        INTRABUILDING BACKBONE PATHWAYS              59
           Backbone & Horizontal Pathways            60   FURTHER INFORMATION                       78
        TELECOMMUNICATIONS ROOM                      60    LOOK BEYOND THE STANDARDS                78
        HORIZONTAL PATHWAYS                          61      REFERENCE DOCUMENTS FOR FURTHER INFO   78
           Multichannel Raceway                      62      OBTANING ISO, TIA & EIA DOCUMENTS      79
           Cellular Floor                            62      CONTACT ANIXTER                        80
           Trenchduct                                62
           Access Floor/Raised Floor                 62




4                                                                                                        5
                                    INTRODUCTION                                                      ISO/IEC 11801

             ANIXTER: THE CABLING                                                     2ND EDITION
               SYSTEMS EXPERTS
                                                                    CABLING FOR CUSTOMER PREMISES
    Look to Anixter when you need any type of communication
                                                                    The following sections are extracts from the ISO/IEC 11801
    infrastructure. Whether you’re looking for data, voice or
                                                                    2002 2nd Edition, Cabling for Customer Premises, the
    video networks, wired or wireless, in an office, campus or
                                                                    information contained has been taken from the final
    factory, Anixter is the company to turn to. We are the one
                                                                    standards document.
    distributor with both the technical understanding to help you
    determine the right products for your application and the       EN 50173 follows the same path as 11801 and the
    unparalleled global distribution capabilities to get you that   information is the same as this document.
    product, when and where you need it.
                                                                    Cabling Subsystems
    In an effort to continually support you, we have pulled         There are three generic cabling subsystems: campus
    together some valuable information from ISO/IEC and             backbone, building backbone and horizontal cabling.
    ANSI/TIA/EIA. The information contained within this             These subsystems are connected together to form a
    reference guide covers the key aspects of the ISO/IEC           generic cabling structure as shown.
    11801, ANSI/TIA/EIA-568-B, 569 and 606-A standards.
    We hope you find its contents informative and useful.

    SCOPE OF THIS HANDBOOK

    This document is meant as a reference that highlights the key
    points of the ISO/IEC 11801, ANSI/TIA/EIA-568-B, 569
    and 606-A standards. It is not intended as a substitute for
    the original documents. For further information on any topic
    in the guide, refer to the actual standard. See the section
    called Reference Documents for instructions on how to order
    a copy of the standard itself.
                                                                    Campus Backbone Cabling Subsystem
                                                                    The campus subsystem extended from the campus distributor
                                                                    (CD) to the building distributor (BD) is usually located in
                                                                    separate buildings. When installed this includes:
                                                                    • Campus cables.
                                                                    • Jumpers and patch cords.
                                                                    • Connecting hardware at both ends to terminate the
                                                                        campus cable.

6                                                                                                                             7
    If a BD does not exist then the campus subsystem extends to     Work area and equipment cords are not considered part
    the floor distributor (FD). Campus backbone cable may also      of the horizontal cabling subsystem because they are
    connect BD’s. Such connections are in addition to those         application specific. Horizontal cable from the FD to the
    required for basic hierarchical topologies.                     TO shall be continuous unless a CP is installed.
    Building Backbone Cabling Subsystem                             Distributors
    The building cabling subsystem extends from the BD to           The number and type of subsystems depends on the
    the FD. When installed this includes:                           requirements of the end user and the size and geography
    • Building backbone cables.                                     of the site. Usually there would be one campus distributor
    • Jumpers and patch cords.                                      per campus, one building distributor per building and one
    • Connecting hardware at both ends to terminate the             floor distributor per floor.
        backbone cable.
                                                                    When designing the FD the lengths of patch cords/jumpers
    Building backbone cables may also interconnect floor            and equipment cords should be kept to a minimum and
    distributors. However these are classed for back up and in      administration should ensure that the design does not
    addition to those required for basic hierarchical topologies.   exceed the required lengths of this standard.
    Building backbone cables shall not contain
                                                                    Distributors should be located as to maintain the cable
    consolidation points.
                                                                    lengths required by the channel performance requirements.
    Horizontal Cabling Subsystem
                                                                    Not all applications are supported to the maximum channel
    The horizontal cabling subsystem extends from the
                                                                    distances set down in Table 1 of the standard using a single
    floor distributor to the telecommunications outlet (TO)
                                                                    cable type.
    and includes:
    • Horizontal cable.
                                                                    Maximum Channel Distances
    • Mechanical termination at the TO of horizontal cable.
                                                                    Channel                                                Length (m)
    • Mechanical termination at the FD including connecting
                                                                    Horizontal                                                100m
        hardware e.g. of the interconnect or cross connect.
                                                                    Horizontal + building backbone + campus backbone         2000m
    • Cross connections to application specific equipment at
                                                                    NOTE: In some implementations of the horizontal cabling subsystem in clause 7
        the FD.
                                                                    of ISO/IEC11801, the FD may not support TO’s up to the maximum distance shown.
    • Consolidation point (CP) (optional).
    • Telecommunications outlets.
                                                                    For floor spaces that exceed 1,000m2, a minimum of one
                                                                    FD should be provided for every 1,000m2 of floor space
                                                                    reserved for offices. If the floor space is to be sparsely
                                                                    populated such as a reception area then this may be fed
                                                                    from an adjacent floor.


8                                                                                                                                                    9
 Functions of multiple distributors may be combined, as             •   The CP shall be placed so that one work area is served
 an example the CD and BD may be in the same room                       by at least one CP.
 physically, this is common when a small site is occupied           •   The CP’s shall be limited to serving a maximum of
 or the link to other BD’s requires very little space.                  12 work areas.
                                                                    •   For balanced cabling the CP shall be placed a minimum
 Telecommunications Outlet (TO)
                                                                        of 15m from the FD.
 Each work area should be served by a minimum of two
                                                                    •   The CP shall be placed in an accessible position.
 TO’s, for work area size refer to ISO/IEC TR 14763-2.
                                                                    •   A CP shall be part of the administration system.
 • The first outlet should be for four pair balanced cable
     terminated on a eight position outlet as described on          Floor Distributor (FD) & Building Distributor (BD)
     page 18.                                                       The FD shall provide all facilities (space, power,
 • The second outlet may be for optical fibre or another            environmental, control etc.) for passive components, active
     four pair outlet.                                              devices, and external network interfaces housed within it.
                                                                    Backbone cabling shall have direct access to the FD.
 Single User TO Assembly
 Single user TO’s should be located in user accessible locations.   The BD is a location within a building that houses
                                                                    equipment. BD’s are different from FD’s due to the nature
 The copper or fibre outlet should be selected to ensure
                                                                    of the complexity of the equipment (e.g. PABX or computer
 channel performance is maintained.
                                                                    equipment). More than one distributor may be housed in
 Multi-User TO Assembly (MUTOA)                                     an equipment room. If a FD serves more than one BD it
 In open office environments an assembly of multipule               should be considered an equipment room.
 TO’s may be used to serve more than one work area.
                                                                    Performance of Balanced Cabling
 A multi-user TO assembly should be limited to serving a
                                                                    This specifies the minimum performance of generic balanced
 maximum of twelve work areas. This assembly should be
                                                                    cabling. The performance specifications are placed in
 user accessible and mounted on a permanent location such
                                                                    six classes A to F for balanced cabling. This allows for
 as a building column or permanent wall.
                                                                    successful transmission of applications over channels.
 The length of the work area cord should be limited to ensure
                                                                    Channel performance requirements described in this
 cable management in the work area.
                                                                    document may be used for the design and verification
 Consolidation Point                                                of any implementation of the ISO11801 standard.
 Installation of a consolidation point (CP) in the work area is
                                                                    The channel, permanent link and CP link performance
 permitted between the FD and the TO. The CP shall only
                                                                    specification of the relevant class shall meet all temperatures
 contain passive connecting hardware and shall not be used
                                                                    at which the cabling is intended to operate.
 as a cross connect.




10                                                                                                                               11
 Compatibility between cables used in the same channel or       Insertion Loss/Attenuation
 permanent link shall be maintained throughout the cabling      Previous editions of the ISO11801 standard used the term
 system. For example, connections between cables with           ‘attenuation’ which is still widely used in the cable industry.
 different nominal characteristic impedance shall not           However due to impedance mismatches in cabling systems
 be made.                                                       this characteristic is better described as ‘insertion loss’.
                                                                In this guide insertion loss is used to describe the signal
 Layout
                                                                attenuation over the length of the channel, links and
 The channel comprises of only passive sections of cable,
                                                                components. However it should be clearly understood
 connecting hardware, work area cords, equipment cords
                                                                that insertion loss is not a length specific characteristic.
 and patch cords.
                                                                The performance limits for the permanent link are given
 The channel is composed of 90m of solid conductor cable,
                                                                in the following tables, these figures are for maximum
 10m of cord(s) and four connections.
                                                                implementation. These limits are derived from the
                                                                performance limits assuming that the permanent link
                                                                is composed of 90m of solid conductor cable and
                                                                three connectors.

                                                                                 Class D Permanent Link
                                                                Frequency Insertion NEXT PSNEXT ELFEXT PSELFEXT Return
                                                                  (MHz) Loss (dB) (dB) (dB)      (dB)    (dB) Loss (dB)
                                                                    1.0      4.0    60.0   57.0  58.6    55.6    19.0
                                                                   16.0      7.7    45.2   42.2  34.5    31.5    19.0
                                                                   100.0    20.4    32.3   29.3  18.6    15.6    12.0

 The insertion loss for CP cable to TO may differ from that
 of both fixed horizontal cables and cords. Table 21 within
 the standard gives equations for calculating maximum                            Class E Permanent Link
 channel lengths.                                               Frequency Insertion NEXT PSNEXT ELFEXT PSELFEXT Return
                                                                  (MHz) Loss (dB) (dB)    (dB)   (dB)    (dB) Loss (dB)
 The performance of a permanent link is specified for
                                                                     1.0     4.0    65.0   62.0  64.2    61.2    21.0
 horizontal cabling at and between the TO and the first patch
                                                                    16.0     7.1    54.6   52.2  40.1    37.1    20.0
 panel at the other end of the horizontal cable. This may
                                                                   100.0    18.5    41.8   39.3  24.2    21.2    14.0
 contain a CP.
                                                                   250.0    30.7    35.3   32.7  16.2    13.2    10.0
 For Definitions of Electrical Parameters see page 32.




12                                                                                                                            13
                 Class F Permanent Link                                         Class F Channel
 Frequency Insertion NEXT PSNEXT ELFEXT PSELFEXT Return     Frequency Insertion NEXT PSNEXT ELFEXT PSELFEXT Return
   (MHz) Loss (dB) (dB) (dB) (dB)         (dB) Loss (dB)      (MHz) Loss (dB) (dB) (dB) (dB)         (dB) Loss (dB)
      1.0     4.0    65.0   62.0  65.0    62.0    21.0           1.0     4.0    65.0   62.0  65.0    62.0    19.0
     16.0     6.9    65.0   62.0  59.3    56.3    20.0          16.0     8.1    65.0   62.0  57.5    54.5    18.0
    100.0    17.7    65.0   62.0  46.0    43.0    14.0         100.0    20.8    62.9   59.9  44.4    41.4    12.0
    250.0    28.8    60.4   57.4  39.2    36.2    10.0         250.0    33.8    56.9   53.9  37.8    34.8     8.0
    600.0    46.6    54.7   51.7  32.6    29.6    10.0         600.0    54.6    51.2   48.2  31.3    28.3     8.0

 The performance limits of the channel are given in        Classification of Balanced Cabling
 the following tables, these figures are for maximum       ISO/IEC 11801 standard specifies the following classes
 implementation. These limits are derived from the         for balanced cabling.
 performance limits assuming that the channel is                   Class A is specified up to 100kHz.
 composed of 90m of solid conductor cable, 10m
 of cord(s) and four connectors.                                   Class B is specified up to 1MHz.

                                                                   Class C is specified up to 16MHz.
                     Class D Channel
                                                                   Class D is specified up to 100MHz.
 Frequency Insertion NEXT PSNEXT ELFEXT PSELFEXT Return
   (MHz) Loss (dB) (dB) (dB) (dB)         (dB) Loss (dB)           Class E is specified up to 250MHz.
      1.0     4.0    60.0   57.0 57.4     54.4    17.0
     16.0     9.1    43.6   40.6 33.3     30.3    17.0             Class F is specified up to 600MHz.
    100.0    24.0    30.1   27.1 17.4     14.4    10.0     Channels, permanent links and CP links shall be installed
                                                           to provide a minimum of Class D performance.
                     Class E Channel                       Balanced Cabling Performance
 Frequency Insertion NEXT PSNEXT ELFEXT PSELFEXT Return    The nominal impedance of channels, permanent links
   (MHz) Loss (dB) (dB) (dB) (dB)         (dB) Loss (dB)   and CP links is 100 ohm.
      1.0     4.0    65.0   62.0  63.3    60.3    19.0
     16.0     8.3    53.2   50.6  39.2    36.2    18.0     Optical Fibre Cables
    100.0    21.7    39.9   37.1  23.3    20.3    12.0     There are four types of optical fibre specified to support
    250.0    35.9    33.1   30.2  15.3    12.3     8.0     varying applications, three multimode types and one
                                                           singlemode type.




14                                                                                                                      15
 The following table gives the optical attenuation as a             Singlemode Optical Fibre Cables
 maximum in dB’s per kilometre.                                     As with multimode fibre there are three requirements:
                                                                    • Optical fibre requirements: The optical fibre shall
                   OM1, OM2, & OM3 Multimode       OS1 Singlemode      conform to IEC 60793-2 type B1 and ITU-T G.652.
     Wavelength           850nm   1300nm           1310nm 1550nm    • Cable transmission performance requirements:
     Attenuation           3.5      1.5              1.0    1.0           a) Attenuation, each optical fibre in the cable shall
                                                                          have an attenuation in accordance with the
 Multimode Optical Fibre Cables                                           measurement requirements in IEC 60793-1-40.
 There are three parts to the requirements of multimode                   b) Cut-off wavelength, of cabled singlemode optical
 cables, they are:                                                        fibre shall be less than 1260nm in accordance to
                                                                          measurement requirements in IEC 60793-1-44.
 •      Optical fibre requirements: The optical fibre shall
                                                                    • Physical cable requirements: Indoor and outdoor cables
        be graded index with nominal 50/125 µm or
                                                                       shall meet mechanical and environmental requirements
        62.5/125 µm core/cladding diameter and numerical
                                                                       from IEC 60794-2 and IEC 60794-3.
        aperture complying with IEC 60793-2.
 •      Cable transmission performance requirements: Each           Connecting Hardware
        optical fibre shall meet the performance of the above       Connecting hardware refers to the connectors, panels and
        table. Attenuation and modal bandwidth shall be             ancillary products that are terminated on to the copper or
        measured in accordance with IEC 60793-1.                    fibre cable. This is installed in the:
 •      Physical cable requirements: The indoor and outdoor         • Campus Distributor (CD)
        optical fibre cable shall meet mechanical and               • Building Distributor (BD)
        environmental requirements from IEC 60794-2                 • Floor Distributor (FD)
        and IEC 60794-3.                                            • Consolidation Point (CP)
                                                                    • Telecommunications Outlet (TO)
 The following table gives modal bandwidth for multimode
 optical fibres shown as the minimum modal bandwidth as
                                                                    In addition to the location of connecting hardware it should
 MHz.km.
                                                                    also be designed to provide:
      Optical Core Diameter Overfilled Launch Effective Laser       • Means to identify cabling for installation
                                                                        and administration.
     Fibre Type   In µm       Bandwidth Launch Bandwidth
                                                                    • Means to permit cable management.
                                    850nm 1300nm      850nm
                                                                    • Means to access, monitor or test cabling
       OM1           50 or 62.5      200    500      Unspecified
                                                                        and components.
       OM2           50 or 62.5      500    500      Unspecified
                                                                    • Protect against physical damage and contamination.
       OM3               50         1500    500        2000




16                                                                                                                               17
 •   Space efficiency for termination density and ease         Optical Fibre Hardware
     of administration.                                        Telecommunications outlet optical fibres shall be terminated
 •   Means to ensure screening and bonding requirements        on to the horizontal cabling at the TO with a duplex SC
     when required.                                            connector as specified in IEC 60874-19-1. Connectors
                                                               at locations other than the TO shall meet the optical,
 Telecommunications Outlet Requirements
                                                               mechanical and environmental requirements of
 Cabling Classes A to F; each horizontal balanced cable
                                                               IEC 60874-19-1.
 shall be terminated at the telecommunications outlet with
 an unkeyed socket and shall comply with the pin and pair      Screening Practices
 assignments as shown.                                         The procedures must provide adequate earthing for both
                                                               electrical and EM performance, are subject to local and
                                                               national regulations, always in accordance with
                                                               ISO/IEC TR 14763-2.

                                                               Earthing and bonding shall be in accordance with
                                                               applicable electrical codes or IEC 60364-1.

                                                               Test Procedures
                                                               Testing of balanced cabling channels, permanent links
                                                               and CP links shall follow test procedures as specified
                                                               in IEC 61953-1.

                                                               Testing of optical fibre channels are specified in
 Plugs and sockets shall be intermateable and backward         IEC 61280-4-1 Ed.1.0, IEC 61280-4-2 Ed.1.0 and
 compatible with previous category performance. Backward       IEC 61280-4-3 Ed. 1.0.
 compatibility means that mated connectors shall meet all of
 the requirements of the lowest performing                     All figures shown in the tables are informative. For full
 component.                                                    calculation values please see the latest full standard.




18                                                                                                                         19
                                 ANSI/TIA/EIA-568-B

 Notes   THE PURPOSE OF THE STANDARD

         •   Establish a generic telecommunications cabling standard
             that will support a multivendor environment.
         •   Enable the planning and installation of a structured
             cabling system for commercial buildings.
         •   Establish performance and technical criteria for various
             cabling system configurations.

         The Standard Specifies:

         •   Minimum requirements for telecommunications cabling
             within an office environment.
         •   Recommended topology and distances.
         •   Media parameters which determine performance.
         •   Connector and pin assignments to ensure
             interconnectability.
         •   The useful life of telecommunications cabling systems
             as being in excess of ten years.

         Building telecommunications cabling specified by this
         standard is intended to support a wide range of different
         commercial building sites and applications (e.g. voice, data,
         text, video and image). Typically, this range includes sites
         with a geographical extent from 3000-1,000,000m2 of
         office space, and with a population of up to 50,000
         individual users.

         This standard replaces ANSI/TIA/EIA-568-A dated
         6 October 1995. This standard also incorporates and
         refines the technical content of TSB67, TSB72, TSB75,
         TSB95 and TIA/EIA-568-A-1, A-2, A-3, A-4 and A-5.




20                                                                  21
                      ANSI/TIA/EIA-568-B.1

 GENERAL REQUIREMENTS                                          telecommunications rooms. Any or all of the functions
                                                               of a telecommunications room may be provided by an
 THE SIX SUBSYSTEMS OF A                                       equipment room.
 STRUCTURED CABLING SYSTEM                                     3. Backbone Cabling
                                                               The backbone cabling provides interconnection between
                                                               telecommunication rooms, equipment rooms and
                                                               entrance facilities.

                                                               It consists of the backbone cables, intermediate and main
                                                               cross-connects, mechanical terminations and patch cords or
                                                               jumpers used for backbone-to-backbone cross-connection.
                                                               This includes:
                                                               • Vertical connection between floors (risers).
                                                               • Cables between an equipment room and building
                                                                    cable entrance facilities.
                                                               • Cables between buildings (interbuilding).




 1. Building Entrance
 Building entrance facilities provide the point at which
 outdoor cabling interfaces with the intrabuilding backbone
 cabling. The physical requirements of the network interface
 are defined in the TIA/EIA-569-A standard.
 2. Equipment Room
 The design aspects of the equipment room are specified in
 the TIA/EIA-569-A standard. Equipment rooms usually
 house equipment of higher complexity than
                                                               Specified Backbone Cabling Topology: Star




22                                                                                                                     23
 Other Design Requirements:                                         4. Telecommunications Room
 • No more than two hierarchical levels of backbone                 A telecommunications room is the area within a building
    cross-connects.                                                 that houses the telecommunications cabling system
 • Star topology.                                                   equipment. This includes the mechanical terminations
 • Bridge taps are not allowed.                                     and/or cross-connects for the horizontal and backbone
 • Main and intermediate cross-connect jumper or patch              cabling system. Please refer to TIA/EIA-569-A for the
    cord lengths should not exceed 20m.                             design specifications of the telecommunications room.
 • Avoid installing in areas where sources of high levels of
                                                                    5. Horizontal Cabling
    EMI/RFI may exist.
                                                                    Specified Horizontal Cabling Topology: Star
 • Grounding should meet the requirements as defined in
    local regulations.                                              The horizontal cabling system extends from the work
                                                                    area telecommunications (information) outlet to the
 Note: It is recommended that the user consult with
                                                                    telecommunications room and consists of the following:
 equipment manufacturers, application standards and
                                                                    • Horizontal Cabling.
 system providers for additional information when planning
                                                                    • Telecommunications Outlet.
 shared-sheath applications on UTP backbone cables.
                                                                    • Cable Terminations.
                                                                    • Cross-Connections.
 Maximum Backbone Distances
                                                                    • Patch Cords.
                    Main to          Main to      Intermediate
    Media          Horizontal     Intermediate   to Horizontal      Four media types are recognised as options for horizontal
     Type        Cross-Connect   Cross-Connect   Cross-Connect      cabling, each extending a maximum distance of 90m:
 Copper (Voice*)     800m             500m            300m          • 4-pair, 100 ohm UTP/ScTP cable (22 to 24AWG
   Multimode        2000m            1700m            300m              solid conductors).
  Single-mode       3000m            2700m            300m          • 2-fibre, 62.5/125µm or 50/125µm optical cable.

 Note: Backbone distances are application-dependent. The
 maximum distances specified above are based on voice
 transmission for UTP/ScTP and data transmission over fibre.
 A 90m distance applies to UTP/ScTP at spectral bandwidths of
 5–16 MHz for CAT 3 and 20–100 MHz
 for CAT 5e.

 Current state-of-the-art distribution facilities usually include
 a combination of both copper and fibre optic cables in
 the backbone.


24                                                                                                                              25
                                                                  secured furniture cluster. Work area cables may then be
                                                                  routed through furniture pathways and directly connected to
                                                                  work area equipment. Each furniture cluster should have one
                                                                  MUTOA which serves a maximum of 12 work areas. Ceiling
                                                                  and access floor mounting is not allowed by TIA/EIA-569-A.

                                                                   Maximum Work Area Cable Length is
                                                                   Determined by the Following Table:
                                                                     Length of       Maximum       Maximum combined length
                                                                     horizontal   length of work   of work area cables, patch
                                                                       cable         area cable    cords and equipment cable
                                                                         m               m                     m
                                                                         90               5                   10
                                                                         85               9                   14
 Maximum Distances for Horizontal Cabling
                                                                         80             13                    18
 In addition to the 90m of horizontal cable, a total of 10m is           75             17                    22
 allowed for work area and telecommunications room patch                 70             22                    27
 and jumper cables.
 Multi-user Telecommunications Outlet Assembly                    Note: No Work Area cable length may exceed 22m.
 Optional practices for open office environments are              For optical fibre, any combination of horizontal, work area
 specified for any horizontal telecommunications cabling          cables, patch cords and equipment cords may not exceed 100m.
 recognised in TIA/EIA 568-B.
                                                                  Consolidation Point




 A multi-user telecommunications outlet assembly (MUTOA)
 facilitates the termination of multiple horizontal cables in a
 common location within a column, wall or permanently




26                                                                                                                              27
 A consolidation point differs from a MUTOA in that it                To connect fibre from the work area to the equipment
 requires an additional connection for each horizontal                room, within a single building, the user may use a splice
 cable run.                                                           or interconnect in the telecom room. The combined distance
                                                                      limitation is 300m for horizontal, intrabuilding backbone
 Only one consolidation point (an interconnection point in
                                                                      and patch cords. Alternatively, the user may simply pull
 the horizontal cabling) is allowed, at a distance of at least
                                                                      cables through the closet. In this last case, the fibre
 15m from the telecom room. A transition point (transition
                                                                      horizontal and backbone consist of one continuous fibre
 from round to flat under carpet cable) is not allowed. A
                                                                      pair, and the pull-through distance limitation is 90m.
 consolidation point is installed in unobstructed building
                                                                      Cabling is 62.5/125µm multimode or 50/125µm
 columns, permanent walls, ceilings or access floors
                                                                      multimode. Sufficient space shall be allowed for slack,
 (if accessible).
                                                                      addition and removal of cables, spares and conversion to
 The multi-user telecommunications outlet and consolidation           a full cross-connect system. Labelling shall be in accordance
 point methods are intended to be mutually exclusive. Labelling       with TIA/EIA-606-A, with additional labelling to identify
 and allowance for spares is required. Moves, adds and                A-B pairs with specific work areas.
 changes should be administered in the telecom room.
                                                                      6. Work Area
 Centralised Optical Fibre Cabling                                    The work area components extend from the telecommunications
 The ANSI/TIA/EIA-568-B-1 standard offers maximum                     (information) outlet to the station equipment. Work area
 flexibility for distributed electronics for multi-tenant buildings   wiring is designed to be relatively simple to interconnect
 by providing for single-tenant users who prefer centralised          so that moves, adds and changes are easily managed.
 electronics (i.e. server farms) connected by a fibre horizontal
                                                                      Work Area Components
 and fibre backbone.
                                                                      • Station Equipment – computers, data terminals,
                                                                        telephones, etc.
                                                                      • Patch Cables – modular cords, PC adapter cables,
                                                                        fibre jumpers, etc.
                                                                      • Adapters (baluns, etc.) – must be external to
                                                                        telecommunications outlet.
                                                                      Telecommunications Outlet
                                                                      Each work area shall have a minimum of two information
                                                                      outlet ports: one for voice and one for data. The cabling
                                                                      choices are indicated in the following diagram.


 Centralised Cabling Scheme


28                                                                                                                                29
                                                         CHANNEL AND PERMANENT LINK

                                                         For the purposes of testing UTP/ScTP cabling systems, the
                                                         horizontal channel is assumed to contain a telecommunications
                                                         outlet/connector, a transition point, 90m of UTP/ScTP
                                                         Category 3, 5e or 6 cable, a cross-connect consisting of two
                                                         blocks or panels and a total of 10m of patch cords. The
                                                         figure below shows the relationship of these components.

 Telecommunications Outlet




                                                         Two link configurations are defined for testing purposes.
                                                         The permanent link includes the horizontal distribution cable,
 8-Position Modular Jack Pair Assignments for UTP/ScTP   telecommunications outlet/connector or transition point and
                                                         one horizontal cross-connect component, including the
                                                         mated connections. This is assumed to be the permanent
                                                         part of a link. The channel is comprised of the permanent
                                                         link plus cross-connect equipment, user equipment cord and
                                                         cross-connect patch cable.

                                                          Minimum Bend Radius
                                                          Horizontal UTP (4-pair)   4 x diameter
                                                          Horizontal ScTP           8 x diameter
                                                          Backbone Cable            10 x diameter
                                                          Patch Cord                Not determined




30                                                                                                                  31
 Definitions of Electrical Parameters                            Propagation Delay: The time needed for the transmission
 Insertion Loss: This term has replaced the term                 of signal to travel the length of a single pair.
 ‘attenuation’ (ATTN). It is a measure of the decrease of
                                                                 Delay Skew: The difference between the propagation
 signal strength as it travels down the media.
                                                                 delay of any two pairs within the same cable sheath. Delay
 NEXT (near-end crosstalk): A measure of the                     skew is caused primarily because twisted pairs are designed
 unwanted signal coupling from a transmitter at the near-end     to have different twists per foot (lay lengths). Delay skew
 into a neighbouring (non-energised) pair measured at the        could cause data transmitted over one channel to arrive out
 near-end.                                                       of sync with data over another channel.
 PSNEXT (power sum near-end crosstalk): A                        The following tables show the limitations for both the
 computation of the unwanted signal coupling from multiple       permanent links and channel.
 transmitters at the near-end into (non-energised) pair
                                                                 Tests shall also measure physical length of each link, and
 measured at the near-end.
                                                                 employ wire map to verify pin terminations at each end
 FEXT (far-end crosstalk): A measure of the unwanted             and identify simple electrical faults. Level III field test
 signal coupling from a transmitter at the near-end into         equipment accuracy is defined.
 a neighbouring pair measured at the far-end.
                                                                  Category 3    Permanent Link
 ELFEXT (equal-level far-end crosstalk): A measure
 of the unwanted signal coupling from a transmitter at the         Frequency (MHz)    Insertion Loss (dB)    NEXT (dB)
 near-end into a neighbouring pair measured at the far-end,              1.0                  3.5              40.1
 relative to the received signal level measured on that same             4.0                  6.2              30.7
 pair. (ELFEXT is FEXT adjusted to discount attenuation.)                8.0                  8.9              25.9
                                                                        10.0                  9.9              24.3
 PSELFEXT (power sum equal-level far-end                                16.0                 13.0              21.0
 crosstalk): A computation of the unwanted signal
                                                                 Category 3 Permanent Link Requirements
 coupling from multiple transmitters at the near-end into
 a pair measured at the far-end, relative to the received
 signal level on that same pair.

 Return Loss: A measure of the degree of impedance
 mismatch between two impedances. It is the ratio, expressed
 in decibels, of the amplitude of a reflected wave echo to the
 amplitude of the main wave at the junction of a transmission
 line and a terminating impedance.



32                                                                                                                             33
     Category 3         Channel                             Category 5e            Channel
      Frequency (MHz)   Insertion Loss (dB)   NEXT (dB)    Frequency Insertion NEXT PSNEXT ELFEXT PSELFEXT Return
            1.0                4.2              39.1         (MHz) Loss (dB) (dB)    (dB) (dB)      (dB) Loss (dB)
            4.0                7.3              29.3            1.0     2.2     >60   >57   57.4    54.4    17.0
            8.0               10.2              24.3            4.0     4.5    53.5   50.5  45.4    42.4    17.0
           10.0               11.5              22.7            8.0     6.3    48.6   45.6  39.3    36.3    17.0
           16.0               14.9              19.3           10.0     7.1    47.0   44.0  37.4    34.4    17.0
                                                               16.0     9.1    43.6   40.6  33.3    30.3    17.0
 Category 3 Channel Requirements
                                                               20.0    10.2    42.0   39.0  31.4    28.4    17.0
                                                               25.0    11.4    40.3   37.3  29.4    26.4    16.0
                                                              31.25    12.9    38.7   35.7  27.5    24.5    15.1
     Category 5e        Permanent Link                         62.5    18.6    33.6   30.6  21.5    18.5    12.1
 Frequency Insertion NEXT PSNEXT ELFEXT PSELFEXT Return       100.0    24.0    30.1   27.1  17.4    14.4    10.0
   (MHz) Loss (dB) (dB) (dB)      (dB)    (dB) Loss (dB)   Category 5e Channel Requirements
      1.0     2.1     >60   >57   58.6    55.6    19.0
                                                           Maximum channel propagation delay: 555ns @ 10MHz
      4.0     3.9    54.8   51.8  46.6    43.6    19.0
                                                           Maximum channel delay skew: 50ns @ 100MHz
      8.0     5.5    50.0   47.0  40.6    37.5    19.0
     10.0     6.2    48.5   45.5  38.6    35.6    19.0
                                                            Category 6             Permanent Link
     16.0     7.9    45.2   42.2  34.5    31.5    19.0
                                                           Frequency Insertion   NEXT PSNEXT ELFEXT PSELFEXT Return
     20.0     8.9    43.7   40.7  32.6    29.6    19.0
                                                             (MHz) Loss (dB)     (dB)  (dB)   (dB)    (dB) Loss (dB)
     25.0    10.0    42.1   39.1  30.7    27.7    18.0
                                                                1.0     1.9      65.0   62.0  64.2    61.2    19.1
    31.25    11.2    40.5   37.5  28.7    25.7    17.1
                                                                4.0     3.5      64.1   61.8  52.1    49.1    21.0
     62.5    16.2    35.7   32.7  22.7    19.7    14.1
                                                               10.0     5.5      57.8   55.5  44.2    41.2    21.0
    100.0    21.0    32.3   29.3  18.6    15.6    12.0
                                                               16.0     7.0      54.6   52.2  40.1    37.1    20.0
 Category 5e Permanent Link Requirements                      31.25    10.0      50.0   47.5  34.3    31.3    18.5
 Maximum link propagation delay: 518ns @ 10MHz                 62.5    14.4      45.1   42.7  28.3    25.3    16.0
 Maximum link delay skew: 45ns @ 100MHz                       100.0    18.6      41.8   39.3  24.2    21.2    14.0
                                                              200.0    27.4      36.9   34.3  18.2    15.2    11.0
                                                              250.0    31.1      35.3   32.7  16.2    13.2    10.0

                                                           Maximum Cat 6 permanent link propagation delay: less than 498ns
                                                           @ 10 MHz
                                                           Maximum Cat 6 permanent link delay skew: less than
                                                           44ns/100m @ 10 MHz


34                                                                                                                      35
                                                                               ANSI/TIA/EIA-568-B.2


     Category 6       Channel                                     BALANCED TWISTED-PAIR
 Frequency Insertion NEXT PSNEXT ELFEXT PSELFEXT Return            CABLING COMPONENTS
   (MHz) Loss (dB) (dB)    (dB)   (dB)    (dB) Loss (dB)
      1.0     2.1    65.0   62.0  63.3     60.3   19.0     100 OHM UNSHIELDED TWISTED-PAIR (UTP/ScTP)
      4.0     4.0    63.0   60.0  51.2    48.21   19.0     CABLING SYSTEMS
     10.0     6.3    56.6   54.0  43.3    40.3    19.0
                                                           Horizontal Cable
     16.0     8.0    53.2   50.6  39.2    36.2    18.0
                                                           As transmission rates have increased, higher performance
    31.25    11.4    48.4   45.7  33.4    30.4    16.5
                                                           UTP/ScTP cabling has become a necessity. In addition,
     62.5    16.5    43.4   40.6  27.3    24.3    14.0
    100.0    21.3    39.9   37.1  23.3    20.3    12.0
                                                           some means of classifying horizontal UTP/ScTP cables and
    200.0    31.5    34.8   31.9  17.2    14.2     9.0
                                                           connecting hardware by performance capability had to be
    250.0    35.9    33.1   30.2  15.3    12.3     8.0
                                                           established. These capabilities have been broken down
                                                           to a series of categories. The following categories are
 Maximum Cat 6/ClassE channel propogation delay: less      currently recognised:
 than 555ns @ 10MHz
                                                           Category 3
 Maximum Cat 6/ClassE channel delay skew: less than
                                                           Cables/connecting hardware with transmission parameters
 50ns/100m @ 10MHz
                                                           characterised up to 16MHz
                                                           Category 5e
                                                           Cables/connecting hardware with transmission parameters
                                                           characterised up to 100MHz
                                                           Category 6
                                                           Cables/connecting hardware with transmission parameters
                                                           characterised up to 250MHz




36                                                                                                                37
                                                             Characteristic impedance of horizontal cabling=100ohms
     Category 3 Horizontal & Backbone Cable (100m)           ±15 percent from 1MHz to the highest referenced frequency
      Frequency    Insertion       NEXT         PSNEXT       (16 or 100MHz) of a particular category.
        (MHz)      Loss (dB)       (dB)          (dB)
                                                             *Requirements for 25-pair cable are identical to those for
         0.772        2.2          43.0           43
                                                              4-pair cable.
           1.0        2.6          40.3           41
           4.0        5.6          32.3           32
           8.0        8.5          27.8           28
                                                              Category 6 Solid Horizontal & Backbone Cable (100m)*
          10.0        9.7          26.3           26
          16.0       13.1          23.2           23          Frequency Insertion NEXT PSNEXT ELFEXT PSELFEXT Return
                                                                (MHz) Loss (dB) (dB) (dB)      (dB)    (dB) Loss (dB)
 Category 3 Horizontal & Backbone Cable                          0.772     1.8    76.0   74.0  70.0    67.0     –
                                                                   1.0     2.0    74.3   72.3  67.8    64.8    20.0
 Max Cat 3 cable propagation delay: 545ns/100m @ 10MHz
 Maximum Cat 3 cable delay skew: 45ns/100m @ 16MHz                 4.0     3.8    65.3   63.3  55.8    52.8    23.0
                                                                   8.0     5.3    60.8   58.8  49.7    46.7    24.5
     Category 5e Horizontal & Backbone Cable (100m)               10.0     6.0    59.3   57.3  47.8    44.8    25.0
                                                                  16.0     7.6    56.2   54.2  43.7    40.7    25.0
 Frequency Insertion NEXT* PSNEXT ELFEXT* PSELFEXT Return
   (MHz) Loss (dB) (dB) (dB)        (dB)    (dB) Loss (dB)        20.0     8.5    54.8   52.8  41.8    38.8    25.0
     0.772    1.8     67.0 64.0                     19.4          25.0     9.5    53.3   51.3  39.8    36.8    24.3
     1.0      2.0     65.3 62.3     63.8    60.8    20.0         31.25    10.7    51.9   49.9  37.9    34.9    23.6
     4.0      4.1     56.3 53.3     51.8    48.8    23.0          62.5    15.4    47.4   45.4  31.9    28.9    21.5
     8.0      5.8     51.8 48.8     45.7    42.7    24.5         100.0    19.8    44.3   42.3  27.8    24.8    20.1
    10.0      6.5     50.3 47.3     43.8    40.8    25.0         200.0    29.0    39.8   37.8  21.8    18.8    18.0
    16.0      8.2     47.2 44.2     39.7    36.7    25.0         250.0    32.8    38.3   36.3  19.8    16.8    17.3
    20.0      9.3     45.8 42.8     37.8    34.8    25.0     Maximum Cat 6 cable propagation delay: 538ns/100m
    25.0     10.4     44.3 41.3     35.8    32.8    24.3     @ 100MHz (536 @ 250MHz)
    31.25    11.7     42.9 39.9     33.9    30.9    23.6     Maximum Cat 6 cable delay skew: 45ns/100m @ all frequencies
    62.5     17.0     38.4 35.4     27.9    24.9    21.5
                                                             The PSNEXT performance of bundled or hybrid cables shall be 1.2dB
   100.0     22.0     35.3 32.3     23.8    20.8    20.1     greater than shown above.
 Category 5e Horizontal & Backbone Cable                     * Horizontal and Backbone cables are defined only as identical
                                                             4-pair cables.
 Maximum Cat 5e cable propagation delay: 538ns/100m
 @ 100MHz
 Maximum Cat 5e cable delay skew: 45ns/100m @ 100MHz




38                                                                                                                            39
 Bundled and Hybrid Cable
                                                                 Category 5e          Connecting Hardware
 Bundled, wrapped or hybrid cables are allowed for use in
 horizontal cabling, provided that each individual cable type      Frequency   Insertion   NEXT       FEXT      Return
                                                                     (MHz)     Loss (dB)   (dB)       (dB)     Loss (dB)
 meets TIA/EIA-568-B.2 specifications, and that power sum
                                                                       1.0        0.1      65.0       65.0       30.0
 NEXT loss created by adjacent jacketed cables be 3dB better
                                                                       4.0        0.1      65.0       63.1       30.0
 than the normally allowed pair-to-pair NEXT for the cable
                                                                       8.0        0.1      64.9       57.0       30.0
 type being tested. Colour codes must follow individual cable
                                                                      10.0        0.1      63.0       55.1       30.0
 standards to distinguish them from multipair UTP
                                                                      20.0        0.2      57.0       49.1       30.0
 backbone cabling.
                                                                      25.0        0.2      55.0       47.1       30.0
 UTP/ScTP Connecting Hardware                                         31.25       0.2      53.1       45.2       30.0
 To ensure that installed connecting hardware                         62.5        0.3      47.1       39.2       24.1
 (telecommunications outlets, patch cords and panels,                100.0        0.4      43.0       35.1       20.0
 connectors, cross-connect blocks, etc.) will have minimal      Category 5e Connecting Hardware
 effect on overall cabling system performance, the
 characteristics and performance parameters presented in
 this section shall be met.                                      Category 6           Connecting Hardware
                                                                   Frequency   Insertion   NEXT       FEXT      Return
     Category 3          Connecting Hardware                         (MHz)     Loss (dB)   (dB)       (dB)     Loss (dB)
       Frequency (MHz)    Insertion Loss (dB)   NEXT (dB)              1.0        0.10      75.0       75.0      30.0
             1.0                  0.1             58.0                 4.0        0.1       75.0       71.0      30.0
             4.0                  0.2             46.0                 8.0        0.1       75.0       65.0      30.0
             8.0                  0.3             39.9                10.0        0.1       74.0       63.1      30.0
            10.0                  0.3             38.0                16.0        0.1       69.9       59.0      30.0
            16.0                  0.4             33.9                20.0        0.1       68.0       57.1      30.0
                                                                      25.0        0.1       66.0       55.1      30.0
 Category 3 Connecting Hardware
                                                                      31.25       0.11      64.1       53.2      30.0
                                                                      62.5        0.16      58.1       47.2      28.1
                                                                     100.0        0.20      54.0       43.1      24.0
                                                                     200.0        0.28      48.0       37.1      18.0
                                                                     250.0        0.32      46.0       35.1      16.0

                                                                PSNEXT and PSFEXT are not defined for connecting hardware




40                                                                                                                          41
 The preferred termination method for all UTP/ScTP
                                                                  Category 5e           Assembled Patch Cords
 connecting hardware utilises the insulation displacement
                                                                   Frequency 2m Cord      5m Cord     10m Cord       Return
 contact (IDC). To ensure overall system integrity, horizontal
                                                                     (MHz) NEXT (dB)     NEXT (dB)    NEXT (dB)     Loss (dB)
 cables need to be terminated with connecting hardware of
                                                                       1.0    65.0         65.0         65.0          19.8
 the same category or higher.
                                                                       4.0    62.3         61.5         60.4          21.6
 The following requirements apply only to wire and cable               8.0    56.4         55.6         54.7          22.5
 used for patch cords and cross-connect jumpers:                      10.0    54.5         53.7         52.8          22.8
                                                                      16.0    50.4         49.8         48.9          23.4
 UTP/ScTP Patch Cords
                                                                      20.0    48.6         47.9         47.1          23.7
 Jumper/patch cord maximum length limitations:
                                                                      25.0    46.7         46.0         45.3          24.0
 • 20m in main cross-connect.
                                                                      31.25   44.8         44.2         43.6          23.0
 • 20m in intermediate cross-connect.
                                                                      62.5    39.0         38.5         38.1          20.0
 • 6m in telecommunications room.
                                                                    100.0     35.1         34.8         34.6          18.0
 • 3m in the work area.
                                                                 Category 5e Assembled Patch Cords
 Patch cord cable construction:
 • Stranded conductors for extended flex-life.                    Category 6            Assembled Patch Cords
 Also, cables used for patch cords and cross-connect jumpers      Frequency 2m Cord       5m Cord     10m Cord      Return
                                                                    (MHz) NEXT (dB)      NEXT (dB)    NEXT (dB)    Loss (dB)
 need to be of the same performance category (or higher)
                                                                      1.0    65.0          65.0         65.0         19.8
 as the horizontal cables they connect. Lastly, UTP/ScTP
                                                                      4.0    65.0          65.0         65.0         21.6
 cabling systems are not Category 3, 5e or 6 compliant
                                                                      8.0    65.0          65.0         64.8         22.5
 unless all components of the system satisfy their respective
                                                                     10.0    65.0          64.5         62.9         22.8
 category requirements.
                                                                     16.0    62.0          60.5         59.0         23.4
                                                                     20.0    60.1          58.6         57.2         23.7
                                                                     25.0    58.1          56.8         55.4         24.0
                                                                     31.25   56.2          54.9         53.6         23.0
                                                                     62.5    50.4          49.2         48.1         20.0
                                                                    100.0    46.4          45.3         44.4         18.0
                                                                    200.0    40.6          39.8         39.3         15.0
                                                                    250.0    38.8          38.1         37.6         14.0


                                                                 Insertion Loss (Attenuation) per 100m (328ft) @ 20 degrees C is
                                                                 defined as equal to UTP solid cable attenuation plus 20% (the
                                                                 increased insertion loss allowance is due to stranded conductors).


42                                                                                                                                    43
                                   ANSI/TIA/EIA-568-B.3

 Notes                      OPTICAL FIBRE
                        CABLING COMPONENTS

         Optical Fibre Cabling Systems
         Optical Fibre Cabling Media
         • Horizontal – 62.5/125 or 50/125µm multimode optical fibre (minimum
           of two fibres)
         • Backbone – 62.5/125 or 50/125µm multimode or single-mode
           optical fibre
         Cable Transmission Performance Parameters Multimode
         (Horizontal & Backbone)
                                     50µm     62.5µm 50µm Laser Optimised
                         Maximum Minimum Minimum                Minimum
         Wavelength Attenuation Bandwidth Bandwith             Bandwidth
            (nm)         (dB/km) (MHz.km) (MHz.km)              (MHz.km)
            850          3.5         500         160          15001/20002
           1300          1.5         500         500        500/not required
                                                              1
                                                                  overfilled launch
                                                                  2
                                                                    laser launch

         Refer to TIA/EIA - 492AAAC for Laser Optimised Fibre.


         Cable Transmission Performance Parameters Single-mode
         (Backbone)
                              Inside Plant                Outside Plant
           Wavelength     Maximum Attenuation          Maximum Attenuation
             (nm)               (dB/km)                     (dB/km)
             1310                 1.0                             0.5
             1550                 1.0                             0.5




44                                                                                    45
                                                                       Optical Fibre Splices, Fusion or Mechanical:
     Optical Fibre Bend Radius
                                                                       • Maximum attenuation 0.3dB.
     Fibre Type                              Bend Radius               • Minimum return loss:
     Small Inside Plant Cable (2–4 fibres)   25mm (no load)                  Multimode: 20dB.
                                             50mm (w/load)                   Single-mode: 26dB.
     All Other Inside Plant Cable            10 x diameter (no load)
                                                                             Single-mode: 55dB (analog CATV).
                                             15 x diameter (w/load)
                                                                             Optical Fibre Connector (mated pair).
     Outside Plant Cable                     10 x diameter (no load)
                                                                       • Maximum insertion loss 0.75dB.
                                             20 x diameter (w/load)
                                                                       Patch Cords
 Outside plant cable must be water-blocked and have a                  • Shall be dual fibre of the same type as the horizontal
 minimum pull strength of 91kg. (Drop cable pull strength                 and backbone fibre.
 may be 45kg).                                                         • Polarity shall be keyed duplex.
 Optical Fibre Connector
 No specified connector: 568SC and other duplex designs
 may be used.

 Colour Identification:
 • Beige – multimode connector/coupling.
 • Blue – single-mode connector/coupling.

 Note: The ISO/IEC standard now specifies the 568SC-type
 fibre connector in the work area.
 Optical Fibre Telecommunications Outlet
 Required features:
 • Capability to terminate minimum of two fibres into
    568SC couplings or other duplex connection.
 • Means of securing fibre and maintaining minimum
    bend radius of 25mm.




46                                                                                                                                47
                           ISO/TIA COMPARISON

             GUIDE TO DIFFERENCES                                  TIA and ISO standards are shown. There are a number of
                                                                   references in the ISO standard to Categories, these apply to
                IN STANDARDS
                                                                   the components and their relevant performance. A reference
 CATEGORY 6 TO CLASS E COMPARISON                                  to these can be found at the end of this document.
 In the past there has been vast differences between the           The following provides a comparison that highlights many of
 TIA/EIA-568 standard and the ISO/CENELEC version.                 the fundamental similarities and differences between
 Today as we work towards a more unified Category 6 or             ANSI-TIA/EIA-568-B (and addendum) and
 Class E standard, both groups are working closely together.       ISO/IEC 11801 : Issue 2.
 The following information gives an insight and confirmation
 of electrical characteristics, where there is a discrepancy an
 explanation is given.                                             TERMINOLOGY

 TIA/EIA-568-B.2-1                                                 TIA/EIA
 Balanced Twisted-Pair Cabling Components –
                                                                   Cross Connect: A facility enabling the termination of
 Addendum 1 – Transmission Performance
                                                                   cable elements and their connection by patch cord
 Specifications for 4-Pair 100ohm Category
                                                                   or jumper.
 6 Cabling
                                                                   MC: Main Cross Connect
 This addendum describes Category 6 cables, patch cords,           IC: Intermediate Cross Connect
 connecting hardware, permanent link and channel                   HC: Horizontal Cross Connect
 transmission parameters characterised up to 250 MHz.              TR: Telecommunications Room
                                                                   TO: Telecommunications Outlet/connector
 The standard specifies insertion loss, near-end crosstalk
                                                                   TP: Transition Point. A location in the horizontal cable
 (NEXT) loss, equal level far-end crosstalk (ELFEXT), return
                                                                   where flat under carpet cable connects to round cable
 loss, propagation delay and delay skew for cables and
                                                                   CP: Consolidation Point. An interconnection scheme that
 connecting hardware.
                                                                   connects horizontal cables that extend from building
 ISO11801 2nd Edition                                              pathways to horizontal cables that extend into work
 Information Technology, Generic cabling for                       area pathways
 customer premises.                                                Interbuilding Backbone
 This standard incorporates additions from Edition 1 and also      Intrabuilding Backbone
 deletions. Edition 2 incorporates Class D upgraded to meet        Cabling Performance
 the requirements of TIA Cat5e. Class E and Class F are            Category 3 specified to 16 MHz
 included within this specification, the differences between the   Category 4 specified to 20 MHz *




48                                                                                                                            49
 Category 5 & 5e specified to 100 MHz **
                                                                Backward Compatible Mated Component Performance
 Category 6 specified to 250 MHz
                                                                            Cat 3/       Cat 5     Cat 5e/        Cat 6/      Class F
 Category 7 specified to 600 MHz ***
                                                                            Class C                Class D        Class E
 * Withdrawn from TIA/EIA-568-B
                                                                Cat 3/      Cat 3/       Cat 3/    Cat 3/         Cat 3/      Cat 3/
 ** Category 5 withdrawn from main 568-B standard to TSB        Class C     Class C      Class C   Class C        Class C     Class C
 95 for reference only                                          Cat 5       Cat 3/       Cat 5     Cat 5          Cat 5       Cat 5
 *** Category 7 is not currently a draft standard by the TIA                Class C
                                                                Cat 5e/     Cat 3/       Cat 5     Cat 5e/        Cat 5e/     Cat 5e/
                                                                Class D     Class C                Class D        Class D     Class D
 ISO/EN                                                         Cat 6/      Cat 3/       Cat 5     Cat 5e/        Cat 6/      Cat 6/
                                                                Class E     Class C                Class D        Class E     Class E
 Distributor: A facility enabling the termination of cable      Class F     Cat 3/       Cat 5     Cat 5e/        Cat 6/      Class F
 elements and their connection by patch cord or jumper                      Class C                Class D        Class E
 CD: Campus Distributor
 BD: Building Distributor                                      The lowest rated component determines the rating of the link
 FD: Floor Distributor                                         or channel.
 TR: Telecommunications Room
 TO: Telecommunications Outlet/connector
                                                                Category 6/Class E Connecting Hardware
 No Equivalent ISO does not support under carpet data cable
                                                                Frequency    Insertion         NEXT            FEXT          Return
 CP: As TIA/EIA
                                                                  (MHz)      Loss (dB)         (dB)            (dB)         Loss (dB)
 Campus Backbone
                                                                    1.0      0.10/0.10       75.0/80.0       75.0/65.0        30.0
 Building Backbone
                                                                  100.0      0.20/0.20       54.0/54.0       43.1/43.1        24.0
 Cabling Performance                                              250.0      0.32/0.32       46.0/46.0       35.1/35.1        16.0
 Class C specified to 16 MHz #
 No comparable class                                           PSNEXT and PSFEXT are not defined for connecting hardware in the
 Class D 2002 specified to 100 MHz ##                          TIA but is defined in ISO.
 Class E specified to 250 MHz
 Class F specified to 600 MHz

 # Class C has been withdrawn from the ISO and
 EN standards
 ## Class D 2002 is equivalent to Category 5e, the original
 Class D (Cat5) has been withdrawn




50                                                                                                                                      51
     Category 6/Class E Assembled Patch Cords                                 Channel
     Frequency    2m Cord       5m Cord        10m Cord      Return           Frequency Insertion Insertion NEXT    NEXT PSNEXT     PSNEXT
       (MHz)     NEXT (dB)     NEXT (dB)       NEXT (dB)    Loss (dB)           (MHz) Loss (dB) Loss (dB) (dB)      (dB)   (dB)      (dB)
         1.0     65.0/65.0      65.0/65.0      65.0/65.0    19.8/19.8                     Cat 6    Class E Cat 6   Class E Cat 6    Class E
        16.0     62.0/61.6      60.5/60.0      59.0/58.5    23.4/23.4             1.0      2.1       4.0    65.0    65.0   62.0      62.0
       100.0     46.4/46.2      45.3/45.0      44.4/44.2    18.0/18.0            16.0      8.0       8.3    53.2    53.2   50.6      50.6
       250.0     38.8/38.6      38.1/37.9      37.6/37.6    14.0/14.0           100.0     21.3      21.7    39.9    39.9   37.1      37.1
                                                                                250.0     35.9      35.9    33.1    33.1   30.2      30.2

 Insertion Loss (Attenuation) per 100m (328ft) @ 20 degrees C is              Frequency ELFEXT   ELFEXT    PSELF   PSELF   Return   Return
 defined as equal to UTP solid cable attenuation plus 20% (the                  (MHz)    (dB)     (dB)      EXT     EXT     Loss     Loss
 increased insertion loss allowance is due to stranded conductors).                                         (dB)    (dB)    (dB)     (dB)
                                                                                 1.0     63.3      63.3     60.3    60.3    19.0     19.0
     Permanent Link                                                             16.0     39.2      39.2     36.2    36.2    18.0     18.0
                                                                               100.0     23.3      23.3     20.3    20.3    12.0     12.0
  Frequency Insertion Insertion        NEXT      NEXT PSNEXT PSNEXT
    (MHz) Loss (dB) Loss (dB)          (dB)      (dB)   (dB)   (dB)            250.0     15.3      15.3     12.3    12.3     8.0      8.0
              Cat 6    Class E         Cat 6    Class E Cat 6 Class E
      1.0      1.9       4.0            65.0     65.0    62.0  62.0          Maximum Cat 6/Class E channel propogation delay: less than
     16.0      7.0       7.1            54.6     54.6    52.2  52.2          555ns @ 10MHz
    100.0     18.6      18.5            41.8     41.8    39.3  39.3          Maximum Cat 6/Class E channel delay skew: less than 50ns/100m
                                                                             @ 10MHz
    250.0     31.1      30.7            35.3     35.3    32.7  32.7
     Frequency ELFEXT        ELFEXT   PSELF      PSELF     Return   Return   N.B. The figures given within the tables are informative only,
      (MHz)     (dB)          (dB)     EXT        EXT       Loss     Loss    for exact figures please refer to the calculations within the
                                       (dB)       (dB)      (dB)     (dB)    standards document.
         1.0      64.2        64.2     61.2       61.2       19.1    21.0
        16.0      40.1        40.1     37.1       37.1       20.0    20.0
       100.0      24.2        24.2     21.2       21.2       14.0    14.0
       250.0      16.2        16.2     13.2       13.2       10.0    10.0

 Maximum Cat 6 permanent link propogation delay: less than 498ns
 @ 10MHz
 Maximum Cat 6 permanent link delay skew: less than 44ns/100m
 @ 10MHz




52                                                                                                                                           53
                        ANSI/TIA/EIA-569-A

        PURPOSE OF THE STANDARD                                            DESIGN CONSIDERATIONS
 As the complexity of voice and data telecommunications has
 increased, standards have been established to ensure the
 operability, flexibility, manageability and longevity of these
 critical commercial support systems. Telecommunications
 now encompass voice, data and video transmission of
 business information, fire/security, audio, environmental and
 other intelligent building controls over media that includes
 fibre optics, specialised copper data cabling, microwave
 and radiowave. This guide concisely describes the
 architectural design elements of cabling pathways and
 dedicated rooms for telecommunications equipment.

 A multi-tenant commercial building has a life expectancy of
 at least 50 years. Software, hardware and communications
 gear have far shorter lifespans of one to five years.
 Moreover, in a multi-tenant environment, continuous moves,
 adds and changes are inevitable. It is the purpose of
 standards to guide design and ease future changes – by
 planning for the future now. These standards are intended
 to provide for a generic structured cabling plant, capable
 of running any voice or data application foreseeable in the
 next 10 to 15 years.
 Abbreviations:                                                   1.   Electric Entrance              5.   Voice
 AWG    American Wire Gauge                                       2.   Telco Entrance                 6.   Telecom Room
 V      volts                                                     3.   Telecom Equipment Room         7.   Grounding & Bonding
 A      amps                                                      4.   Data                           8.   Underfloor System
 kVA    kilovolt ampere
 V/m    volts per meter                                           SERVICE ENTRANCE PATHWAYS

                                                                  For underground facilities, use a minimum 100mm conduit
                                                                  or duct constructed of PVC; multiple plastic duct; galvanised
                                                                  steel; fibre glass; with appropriate encasement. No more



54                                                                                                                           55
 than two 90° manufactured bends are allowed (10 times the          Gross Building
 diameter). Drain slope should not be less than 300mm per
                                                                   Floor Space (m2)   Plywood Field (m) Room Dimensions(m)
 30m. Recommended conduit fill varies but should not exceed
                                                                          465         2.44 high x 1 wide
 40 percent for more than two cables.
                                                                          929         2.44 high x 1 wide
 Maintenance holes (typically 240kg/cm2, concrete) must be              1858          2.44 high x 1.07       (A room recommended
 equipped with sump, corrosion-protected pulling iron, cable            3716          2.44 high x 1.727        beyond this level)
 racks, grounded ladder and only such power/light                       4645          2.44 high x 2.28
 conductors as required for telecommunications support per              5574          2.44 high x 2.44      (A dedicated room req’d.)
 NEC requirements.                                                      7432          2.44 high x 3.048            3.66 x 1.9
                                                                        9290          2.44 high x 2 walls          3.66 x 1.9
 ENTRANCE FACILITIES                                                   18,580         2.44 high x 2 walls          3.66 x 2.74
 Entrance facilities include the pathways for outside carrier          37,160         2.44 high x 2 walls          3.66 x 3.96
 services, interbuilding backbone, alternate entrance and              46,450         2.44 high x 2 walls          3.66 x 4.72
                                                                       55,740         2.44 high x 2 walls          3.66 x 5.56
 antennae entrance pathways. The entrance facilities consist
                                                                       74,320         2.44 high x 2 walls          3.66 x 6.78
 of a termination field interfacing any outside cabling to the
                                                                       92,900         2.44 high x 2 walls          3.66 x 8.4
 intrabuilding backbone cabling. The local telephone carrier
 is typically required to terminate cabling within 15m of
 building penetration and to provide primary                     Rule of thumb: Allow one square foot of plywood wallmount
 voltage protection.                                             for each 18.6m2 of floor space.

 In buildings larger than 2000m2, a locked, dedicated,           EQUIPMENT ROOM
 enclosed room is recommended. Beyond 7000m2, a locked,
                                                                 An equipment room is essentially a large telecommunications
 dedicated room is required, with a plywood termination
                                                                 room that may house the main distribution frame, PBXs,
 field provided on two walls. In buildings up to 10,000m2,
                                                                 secondary voltage protection, etc. The equipment room is
 a wall-mounted termination field may serve as the entrance
                                                                 often appended to the entrance facilities or a computer
 facility, using 20mm plywood, 2.4m high. Beyond 10,000m2,
                                                                 room to allow shared air conditioning, security, fire
 rack-mounted and free-standing frames may also be
                                                                 control, lighting and limited access.
 required. Minimum space requirements are given as follows:




56                                                                                                                                  57
                                                                     Electrical
      Number of         Equipment Room
                                                                     Typically, a minimum of two dedicated 15A, 110/220V
     Workstations      Floor Space (sq.m)                            AC duplex outlets on separate circuits is required. Convenience
      101–400                  37.16                                 duplex outlets shall be placed at 2m intervals around the
      401–800                  74.32                                 perimeter. Emergency power should be considered and
     801–1,200                111.50                                 supplied, if available.

 Rule of thumb: Provide 0.7m2 of equipment room floor space          Dust
 for every 10m2 of user workstation area.                            Less than 100 micrograms/cubic meter/24-hour period.

 Location                                                            Note: The term ‘typically’ is applied here to indicate,
 Typically, rooms should be located away from sources of             where applicable, that these requirements also apply to
 electromagnetic interference (transformers, motors, x-ray,          other elements of the cabling system spaces. Lighting
 induction heaters, arc welders, radio and radar) unless             requirements, for instance, are largely identical for entrance
 interference is less than 3 V/m across the frequency                facilities, equipment rooms and telecommunications rooms.
 spectrum. Avoid sources of flooding.
                                                                     INTRABUILDING BACKBONE PATHWAYS
 Perimetres
 Typically, no false ceiling; all surfaces treated to reduce dust;   Within a building, the intrabuilding backbone pathways
 walls and ceiling painted white or pastel to improve visibility.    extend between the entrance facilities, equipment room and
                                                                     telecommunications rooms. Telecom rooms should be stacked
 Limited Access
                                                                     vertically above each other on each floor, and provided
 Typically, single or double 0.91 x 2.03 lockable doors.
                                                                     with a minimum of three 100mm sleeves (a stub of
 Other                                                               conduit through the floor) for less than 4645m2 served.
 Typically, no piping, ductwork, mechanical equipment or             An equivalent 100mm x 300mm slot may be used in lieu
 power cabling should be allowed to pass through the                 of three sleeves. Firestopping is required. If rooms are not
 equipment room. No unrelated storage.                               vertically aligned, then 100mm horizontal conduit runs are
                                                                     required. Include no more than two 90° bends between
 HVAC
                                                                     pull points. Pulling iron or eyes embedded in the concrete
 24 hours/day, 365 days/year, 18° to 24°C, 30 to
                                                                     for cable pulling is recommended. Fill should not exceed
 55 percent humidity, positive pressure.
                                                                     40 percent for any run greater than two cables.
 Lighting
 Typically, 2.56m high, providing 50-foot candles @ 0.91m
 above floor.




58                                                                                                                               59
 Backbone & Horizontal Pathways                                   in the floor at the left side of a plywood termination field,
                                                                  which are ideally located near the door. A fire extinguisher
                                                                  is recommended.




                                                                  Riser Sleeve



 1.   Telco Conduit           6.   Vertical Backbone
 2.   Telco Manhole           7.   Telecom Room
 3.   Entrance Conduit        8.   Horizontal Cabling
 4.   Telco Entrance Facility 9.   Interbuilding Backbone
 5.   Telecom Equipment Room 10.   Electrical Entrance Facility

 TELECOMMUNICATIONS ROOM

 The telecommunications room on each floor is the junction
 between backbone and horizontal pathways. It contains
 active voice and data telecommunications equipment,
 termination fields and cross-connect wiring.                     Typical Telecommunications Room

 More than one telecom room per floor is required if              HORIZONTAL PATHWAYS
 distance to a work area exceeds 90m, or if floor area
 served exceeds 1000m2. Recommended room sizing is                Horizontal pathways extend between the telecommunications
 3.0m x 3.4m for each 1000m2 area served.                         room and the work area. A variety of generic pathway
                                                                  options are described. Choice of pathway(s) is left to the
 Power, lighting, air conditioning and limited access are         discretion of the designer. The most commonly employed
 typical. See requirements for Equipment Room. There is           pathway consists of cable bundles run from the telecom
 a minimum of three 100mm firestopped backbone sleeves            room along J-hooks suspended above a plenum ceiling,




60                                                                                                                            61
 which fan out once a work zone is reached. They then drop       Perimeter Pathways
 through interior walls or support columns or raceways, and      Options include surface raceway, recessed, molding and
 terminate at an information outlet (I/O). Other options are:    multichannel (to carry separate power and lighting circuits).

 Multichannel Raceway                                            Rule of thumb: Typically, size horizontal pathways by
 Cellular raceway ducts capable of routing telecom               providing 25mm2 of cross-section area for every 10m2 of
 and power cabling separately in greater than 75mm               workspace area being served.
 reinforced concrete.
                                                                 Note: Typically, a pull box, splice box or pulling point is
 Cellular Floor                                                  required for any constrained pathway where there are more
 Pre-formed hollows, or steel-lined cells, are provided in       than two 90° bends, a 180° reverse bend or length more
 concrete, with header ducts from the telecom room               than 30m.
 arranged at right angles to the cells.
 Trenchduct
 A wide, solid tray, sometimes containing compartments, and
 fitted with a flat top(with gaskets) along its entire length.
 It is embedded flush with the concrete finish.
 Access Floor/Raised Floor
 Modular floor panels supported by pedestals, used in
 computer rooms and equipment rooms.
 Plenum/Ceiling
 Bundled cables, suspended above a false ceiling, fan out
 to drop through walls, power poles or along support
                                                                 Perimeter Pathway
 columns to baseboard level.
 Conduit
 To be considered only when outlet locations are permanent,
 device density low and flexibility (future changes)
 not required.
 Cable Trays
 Options include channel tray, ladder tray, solid bottom,
 ventilated and wireway.                                         Variety of Horizontal Pathways




62                                                                                                                          63
                                                                 A multi-user telecommunication outlet assembly (MUTOA)
                                                                 is another methodology to reduce cabling moves, adds
                                                                 and changes in modular furniture settings. The user cord is
                                                                 directly connected to the MUTOA. A MUTOA location must
                                                                 be accessible and permanent, and may not be mounted in
                                                                 ceiling spaces or under access flooring. Similarly, it cannot
 Access Floor/Raised Floor                                       be mounted in furniture unless that furniture is permanently
                                                                 secured to the building structure.

                                                                 For more descriptive information on distance limitations
                                                                 and purposes of consolidation points and MUTOAs, see
                                                                 ANSI/TIA/EIA-568-B.1.

                                                                 ELECTROMAGNETIC INTERFERENCE

                                                                 Voice and data telecommunications cabling should not
                                                                 be run adjacent and parallel to power cabling – even
                                                                 along short distances – unless one or both cable types are
                                                                 shielded and grounded. For low-voltage communication
                                                                 cables, 150mm is required from any fluorescent lighting
                                                                 fixture or power line over 2kVA and up to 600mm from any
                                                                 power line over 5kVA. In general, telecommunications
                                                                 cabling is routed separately, or several metres away from
                                                                 power cabling. Similarly, telecommunications cabling is
                                                                 routed away from large motors, generators, induction
                                                                 heaters, arc welders, x-ray equipment, and radio frequency,
 Ceiling Utility Pole
                                                                 microwave or radar sources.

                                                                 Note: Distance recommendations from (1990) TIA/EIA-569
 CONSOLIDATION POINTS AND MUTOA’S
                                                                 are reproduced here by popular request.
 Consolidation points provide limited area connection
 access. Typically, a permanent flush wall, ceiling or support
 column-mounted panel serves modular furniture work areas.
 The panels must be unobstructed and fully accessible without
 moving fixtures, equipment or heavy furniture.



64                                                                                                                           65
 FIRESTOPS                                                    Notes
 Annex A of the standard discusses various types of
 packing used to re-establish the integrity of fire-rated
 structures when these barriers have been penetrated by
 cable. This section briefly discusses passive mechanical
 systems and non-mechanical systems such as putty, caulk,
 cements, intumescent sheets and strips, silicone foams and
 pre-manufactured pillows. The most common method is
 stuffing all apertures with ceramic/mineral wool and
 caulking both sides with fire-resistant putty.




 Cutaway of Typical Firestop




66                                                                    67
                          ANSI/TIA/EIA-606-A

        PURPOSE OF THE STANDARD                                              ADMINISTRATION SYSTEM
 The following extracts are taken from the                          The main elements of a generic telecommunications
 ANSI/TIA/EIA-606-A-2002 dated May 2002, Administration             infrastructure for which this standard specifies an
 Standard for Commercial Telecommunications Infrastructure.         administration system are:
                                                                    1. Horizontal pathways and cabling.
 Modern buildings require an effective telecommunications           2. Backbone pathways and cabling.
 infrastructure to support the wide variety of services that rely   3. Telecommunications grounding and bonding.
 on the electronic transport of information. Administration         4. Spaces (e.g. entrance facility, telecommunications room,
 includes basic documentation and timely updating of                    equipment room).
 drawings, labels and records. Administration should be             5. Firestopping.
 synergistic with voice, data and video telecommunications,
 as well as with other building signal systems, including           This standard addresses the administration of commercial
 security, audio, alarms and energy management.                     telecommunications infrastructure by:
                                                                    a) Assigning identifiers to components of the infrastructure.
 Administration can be accomplished with paper records, but         b) Specifying elements of information which make up
 in today’s increasingly complex telecommunications                      records for each identifier.
 environment, effective administration is enhanced by the use       c) Specifying relationships between these records to access
 of computer-based systems or even real time management.                 the information they contain.
                                                                    d) Specifying reports presenting information on groups
 Administrative record-keeping plays an increasingly
                                                                         of records.
 necessary role in the flexibility and management of frequent
                                                                    e) Specifying graphical and symbolic requirements.
 moves, adds and changes. This section describes the
 administrative record-keeping elements of a modern
 structured cabling system.




68                                                                                                                             69
       CLASSES OF ADMINISTRATION                                   Required Records
                                                                   One horizontal link record for each horizontal link.
 Four classes of administration are specified in this standard     The horizontal link record shall contain the following
 to accommodate the complexity present in telecommunications       information:
 infrastructure. The specifications for each class include         a) Horizontal link identifier (primary indexing identifier,
 requirements for identifiers, records and labelling.                  e.g. 1A-A47).
                                                                   b) Cable type (e.g. 4-pair, UTP category 5e, PVC).
 An administration system may be managed using a                   c) Location of TO (room, office or grid location).
 paper-based system, general purpose spreadsheet software,         d) Outlet connector type (e.g. 8-position modular,
 or special purpose cable management software.                         T568B, Cat5e).
                                                                   e) Cable length (e.g. 51m).
 Classes are scalable and allow expansion without requiring
                                                                   f) Cross connect hardware type (e.g. 24-port modular
 changes to existing identifiers or labels. For mission critical
                                                                       patch panel, T568B, Cat5e).
 systems, buildings over 7000m2, or multi-tenant buildings,
 administration of pathways and spaces and outside plant           For TMGB and TGB labelling please see full standard.
 elements is strongly recommended.
                                                                   CLASS 2
                                                                   Class 2 provides for the telecommunications infrastructure
 CLASS 1                                                           administration needs of a single building with an ER and
 Addresses the needs of a premises that is served by a single      one or more TR’s within a single building. Class 2
 ER. This ER is the only administration point in the building      administration includes the elements of Class 1, plus
 and has no backbone cable or campus cables connected to           identifiers for backbone cabling, multiple element grounding
 it. Simple cable pathways will generally be understood            and firestopping. Optional administration of pathways is
 without the need to be administered. If there is a need for       allowed if they are understood.
 administration of the pathways then Class 2 should be used
 as a minimum.                                                     Class 2 can be managed by using paper-based, general
                                                                   purpose spreadsheet software or special purpose cable
 Class 1 is usually managed by using paper-based or                management software.
 general purpose spreadsheet software.
                                                                   Infrastructure Identifiers
 Infrastructure Identifiers
                                                                   a) Identifiers required as in Class 1.
 a) Telecommunications Space (TS) identifier.
                                                                   b) Building backbone cable identifier.
 b) Horizontal link identifier.
                                                                   c) Building backbone pair or optical fibre identifier.
 c) TMGB identifier.
                                                                   d) Firestopping location identifier.
 d) TGB identifier.
                                                                   Class 2 administration may include pathway identifiers.

70                                                                                                                               71
 Required Records                                              CLASS 3
 a) Horizontal link records as specified in Class 1.           Addresses the needs of the campus, including its buildings
 b) One TS record for each TS.                                 and outside plant elements. Class 3 includes the elements of
 c) One backbone cable record for each backbone cable.         Class 2, plus identifiers for building and campus cabling.
 d) One TMGB record for each TMGB.                             Administration of building pathways and spaces, and
 e) One TGB record for each TGB.                               outside plant elements is recommended.
 f) One firestopping location record for each
    firestopping location.                                     Class 3 may be managed with paper-based, general
                                                               purpose spreadsheet software or special purpose cable
 The TS record shall contain:                                  management software.
 a) TS identifier.
 b) Type of TS (e.g. TR, ER).                                  Infrastructure Identifiers
 c) Building room number.                                      a) Identifiers required in Class 2 administration.
 d) Key or access card identifier.                             b) Building identifier.
 e) Contact person.                                            c) Campus backbone cable identifier.
 f) Hours of access.                                           d) Campus backbone pair or optical fibre identifier.

 Building backbone record shall contain:                       The following identifiers are optional:
 a) Building backbone identifier.                              a) Identifiers optional in Class 2 administration.
 b) Type of cable (e.g. 300 pair 24AWG Armoured                b) Outside plant pathway element identifier.
     riser cable).                                             c) Campus pathway or element identifier.
 c) Type of connecting hardware (e.g. 48 SC duplex
                                                               Required Records
     adapter panel).
                                                               a) Records required in Class 2 administration.
 d) Cross connect table relating to each backbone cable
                                                               b) One building record for each building.
     pair or optical fibre to other backbone cable or to
                                                               c) One campus backbone cable record for each campus
     horizontal link.
                                                                  backbone cable.
 For TMGB, TGB and firestopping labelling see full standard.
                                                               Building records shall contain:
                                                               a) Building name.
                                                               b) Building location (e.g. street name).
                                                               c) A list of all TS’s.
                                                               d) Contact information for access.
                                                               e) Access hours.




72                                                                                                                       73
 Campus records shall contain:                                    Campus or site records shall contain:
 a) Campus backbone identifier.                                   a) Campus or site name.
 b) Type of cable (e.g. 48 fibre, 50/125 OM3                      b) Campus or site location (e.g. street name).
    indoor/outdoor duct).                                         c) Contact information for local administrator
 c) Type of connecting hardware (e.g. 48 SC duplex                   of infrastructure.
    adapter panel).                                               d) List of all buildings at the site or campus.
 d) Table relating to backbone terminations to other              e) Location of main cross connect, if applicable.
    backbone terminations or horizontal links, to which they      f) Access hours.
    are cross connected.
                                                                  COLOUR CODING IDENTIFICATION
 CLASS 4                                                          This section covers colour coding requirements for
 Class 4 addresses the administration of multi-site system.       termination fields and for horizontal cabling.
 Class 4 administration includes all elements of Class 3
 administration, plus an identifier for each site, and optional   Termination Fields
 identifiers for intercampus elements, such as WAN                Colour coding of termination fields can assist with the
 connections. There are strong recommendations to                 administration by making the structure of the cabling
 administer all pathways, spaces and outside plant elements.      more intuitive.

 Class 4 may be managed with paper-based, general                 The following table gives the colours that shall be used
 purpose spreadsheet software or special purpose cable            within the termination fields. Cross connections generally
 management software.                                             connect termination fields of different colours.

 Infrastructure Identifiers
 a) Identifiers required in Class 3 administration.
 b) Campus and site identifier.

 The following identifiers are optional:
 a) Identifiers optional in Class 3 administration.
 b) Inter-campus element identifiers.

 Required Records
 a) Records required in Class 3 administration.
 b) One campus or site record for each campus or site.




74                                                                                                                             75
      Termination      Colour   Pantone No.           Typical
         Type                                       Application
       Demarcation     Orange      150C       Central Office Connection
           Point
         Network        Green      353C       User side of central office
        Connection                                      connection
         Common        Purple      264C           Connections to PBX,
        Equipment                                Mainframe computer,
                                                    LAN, Multiplexer
       Key System       Red        184C           Connections to key
                                                   telephone systems
        First Level     White       –          Terminations of building
        Backbone                              backbone cable, MC to IC’s
       Second Level     Grey       422C         Termination of building
        Backbone                              backbone cable connecting
                                                        IC’s to HC’s
     Campus Backbone   Brown       465C        Termination of backbone
                                                cable between buildings
        Horizontal      Blue       291C       Terminations of horizontal
                                                       cable in TS’s
      Miscellaneous    Yellow      101C       Alarms, security or energy
                                                      management
                                                                            Illustration of colour coding of termination fields.
 Industry practices in some areas may prevent the use of
 some colours.




76                                                                                                                                 77
                FURTHER INFORMATION

 LOOK BEYOND THE STANDARDS                                        TIA/EIA-568-B.3-1
                                                                  Additional Transmission Performance Specifications for
 The standards are intended to help you identify the minimum
                                                                  50/125µm Optical Fibre Cable.
 solution you will require. Unfortunately, the standards do not
 always adequately address the data traffic demands of            TIA/EIA-569-A (1998)
 emerging technologies.                                           Commercial Building Standard for Telecommunications
                                                                  Pathways and Spaces.
 The standards are minimum requirements and ensure only
 minimal performance. You can’t meet the needs of the future      ISO/IEC 10810 (DRAFT)
 by installing products built around yesterday’s standards.
                                                                  TIA/EIA-570-A (1999)
 Find a system that’s tested and certified well beyond present    Residential and Light Commercial Telecommunication
 day requirements. You need to ensure that your data can          Wiring Standard.
 travel reliably and efficiently tomorrow.
                                                                  TIA/EIA-606-A (2002)
 Fortunately, there are infrastructures that can handle VoIP,     Administration Standard for the Telecommunications
 streaming video and other bandwidth-hungry applications.         Infrastructure of Commercial Buildings.
 Anixter provides the right solutions.
                                                                  IS0/IEC 11801 Issue 2 (2002)
 REFERENCE DOCUMENTS FOR FURTHER                                  Generic Cabling for Customer Premises.
 INFORMATION ON CABLING STANDARDS                                 IEEE 802.3-2002 Revision of 2000 Edition
 TIA/EIA-568-B.1 (2001)                                           Carrier Sense Multiple Access with Collision Detection
 Commercial Building Telecommunications Cabling Standard          (CSMA/CD) Access Method and Physical Layer Specification.
 Part 1: General Requirements.                                    IEEE 802.5-1998 (1998)
 TIA/EIA-568-B.2 (2001)                                           Token Ring Access Method and Physical Layer Specifications
 Commercial Building Telecommunications Cabling Standard          (also known as ANSI/IEEE Std 802.5-1998).
 Part 2: Balanced Twisted-pair Cabling Components.
                                                                  OBTAINING ISO, TIA AND EIA DOCUMENTS
 TIA/EIA-568-B.2-1 (2002)
 Transmission Performance Specifications for 4-Pair 100ohm        TIA and EIA documents may be purchased through Global
 Category 6 cabling.                                              Engineering Documents at www.global.ihs.com*. IEEE
                                                                  documents may be purchased through IEEE, www.ieee.org.
 TIA/EIA-568-B.3 (2000)
 Optical Fibre Cabling Components Standard.                       * Check worldwide offices on main site for an office near you.




78                                                                                                                           79
 CONTACT ANIXTER                                                EUROPE &                          Russia
                                                                                                  Moscow Tel: +7 (095) 933 3960
 For futher assistance or more information visit                MIDDLE EAST
                                                                                                  Spain
 www.anixter.com or contact your local Anixter office.          Austria                           Barcelona Tel: +34 93 480 08 00
                                                                Vienna Tel: +43 1 701 12          Madrid Tel: +34 91 721 29 60
 Some material in this publication is reproduced from
                                                                Belgium                           Sweden
 standards publications which are copyrighted by the
                                                                Brussels Tel: +32 2 715 01 90     Stockholm Tel: +46 8 58 76 03 00
 Telecommunications Industry Association. Where such
                                                                Czech Republic                    Gothenburg Tel: +46 31 89 11 80
 material is used, it is included with written permission
                                                                Prague Tel: +42 02 72 11 11 00    Switzerland
 from the copyright holder.
                                                                Denmark                           Zurich Tel: +41 1 947 25 00
 This handbook was prepared by Anixter Distribution             Copenhagen Tel: +45 70 10 88 00   Geneva Tel: +41 21 989 25 00

 which is not affiliated with the Telecommunications Industry   Finland                           Turkey
 Association, Electronic Industries Alliance, International     Helsinki Tel: +358 400 510 650    Istanbul Tel: +90 212 284 0856

 Organisation for Standardization (ISO) or Cenelec (EN).        France                            UAE
 None of the above standards organisations are responsible      Paris Tel: +33 1 48 63 73 73      Dubai Tel: +971 4 8836 299

 for the content of this publication.                           Lyon Tel: +33 8 25 03 66 60       United Kingdom
                                                                Germany                           Tel: +44 (0)1925 848031
                                                                Stuttgart Tel: +49 7144 2694 0
                                                                                                  ANIXTER INTERNATIONAL
                                                                Greece
                                                                                                  EUROPEAN HEADQUARTERS
                                                                Athens Tel: +30 210 747 01 45
                                                                                                  Anixter House, 1 York Road
                                                                Hungary                           Uxbridge, MIDDX, UB8 1RN
                                                                Budapest Tel: +36 2 350 14 10     Tel: +44 (0)1895 818181
                                                                                                  Fax: +44 (0)1895 818182
                                                                Italy                             http://www.anixter.com
                                                                Milan Tel: +39 02 54 74 91
                                                                Rome Tel: +39 06 52 20 52 43      ANIXTER INC. WORLDWIDE
                                                                                                  & USA HEADQUARTERS
                                                                Netherlands                       4711 Golf Road, SKOKIE,
                                                                Rotterdam Tel: +31 10 28 85 900   ILLINOIS, 60076, USA
                                                                Norway                            Tel: +1 847 677 2600
                                                                Oslo Tel: +47 22 88 70 50         Fax: +1 847 677 9480

                                                                Poland                            CANADIAN HEADQUARTERS
                                                                Warsaw Tel: +48 22 878 33 14      Toronto Tel: +905 568 8999

                                                                Portugal                          ASIA PACIFIC
                                                                Lisbon Tel: +351 21 422 04 00     HEADQUARTERS
                                                                                                  Singapore Tel: +65 6756 7011
                                                                Republic of Ireland
                                                                Dublin Tel: +353 1 623 3688


80                                                                                                                                   81
Anixter Distribution does not manufacture the items described in this brochure. The information
contained herein is given in good faith. Users are requested to determine directly from the
manufacturer’s tests or to make their own tests to determine the suitability of these materials
for their applications and to be guided by the results of such tests. All applicable warranties
are provided by the manufacturers. Purchasers are requested to determine directly from the
manufacturer the applicable product warranty and limitations. Data and suggestions made in
this publication are not to be construed as recommendations to use any products in violation
of any government law or regulation relating to any material or its use.


PRINTED IN ENGLAND – Anixter 11/02 ANIX 0297

								
To top