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FOR FIBER OPTIC CABLE OUTDOOR_ARM by niusheng

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									OUTDOOR/ARMORED FIBER OPTIC CABLE




                            FOR

             FIBER OPTIC CABLE
     OUTDOOR/ARMORED, MULTI LOOSE TUBE
                MULTIMODE


            UFC 54XXMAD : 50/125 µm




                          Page 1 of 11
OUTDOOR/ARMORED FIBER OPTIC CABLE

1.   Application

     This specification covers the construction and properties of 50/125 µm Multimode (Graded-index)
     double jacket, single armor, dry core loose tube fiber optic cable for direct buried application or
     special protection for duct or lash aerial application. The Dry-Core Loose Tube Optical Cables
     contain 2 to 216 optical fibers. The color coded fibers are housed in multiple color coded plastic
     buffer tubes which are stranded around a dielectric central strength member. Dry water blocking
     tapes or yarns, wrapped around the core, provide protection against water ingress. These user
     friendly elements replace the sticky cable filling gel used in traditional loose tube cable designs.
     The additional strength members are applied over the core covering to meet the tensile
     requirements of the cable application. The cable sheath is composed of a smooth high density
     polyethylene (HDPE) jacket with an optional corrugated steel armor layer for rodent protection.
     The visible ripcords are placed under each jacket layer for quick sheath entry.

     High quality optical fiber made with pure silica-based glass have very low loss for infrared
     wavelengths and can be used to carry large amounts of information for very long distances in
     optical communication systems. High fiber strength is obtained by protecting the surface of the
     glass fiber with thin coating layers of polymeric materials.

     The coated fibers are then placed in cable structures having additional layers to protect the fiber
     during the rigors of outside plant installation and to provide long term reliable operation in the
     outside plant environment. The design philosophy in meeting these objectives is to provide high
     quality, rugged, well-tested fiber optic cables, which are compact and have a high strength-to-
     weight ratio. Compact fiber optic cables are easier to handle and install in the field and provide
     longer length for field installation.

2.   Optical Fiber

     LINK 50/125 µm fiber is a graded index multimode optical fiber with a 50 µm core diameter and a
     125 µm cladding diameter. LINK 50/125 fiber is specified for operation at the 850 nm and/or 1300
     nm wavelengths

     LINK Fibers feature a dual UV curable acrylate coating system, which provides unparalleled
     performance in a wide range of environmental conditions. The advantages of this coating
     structure are excellent resistance to micro-bending induced losses, superior hydrolytic stability
     and long term preservations of color code integrity. The coating is easily strippable using
     mechanical methods.




                     Fig. 1 Cross Section View of Multimode Fiber (50/125, Graded-index)

     The optical, geometrical and mechanical performance of the optical fiber shall be in accordance
     with Table 1 below.


                                             Page 2 of 11
OUTDOOR/ARMORED FIBER OPTIC CABLE

   Table 1. The Optical, Geometrical Performance of the Multimode Fiber 50/125 µm (The
   specification conforms to the requirement of ISO/IEC11801, TIA/EIA-568-B.3, IEC60793-2A1a,
   ITU-T Rec. G.651, Bellcore GR-20-CORE)

                                         Fiber attributes
                Item                                        Description                         Notes
Refractive Index Profile                                  Graded Index                            -
Coating                                        Dual layer UV-Cured Acrylate coat                  -
Core Diameter                                              50 ± 2.5 µm                           1
                                                         1.483 @ 850nm
Group refractive index *                                                                         2
                                                        1.479 @ 1300 nm
Cladding Diameter                                           125 ± 1 µm                           1
Core Non-Circularity                                           ≤5%                               1
Cladding Non-Circularity                                       ≤1%                               1
Coating Diameter                                            245 ± 10 µm                          1
Colored Fiber Diameter                                      255 ± 10 µm                          1
Core/Cladding Concentricity error                            ≤ 1.5 µm                            1
Coating Non-Circularity                                        ≤5%                               1
Coating/Cladding Concentricity error                          ≤ 6 µm                             1
Proof test stress                                      100 kpsi (0.69 Gpa)                       1
Zero-Dispersion Wavelength                        Between 1297 and 1316 nm                        1
                                                                         2
Zero-Dispersion Slope                                  ≤ 0.101 ps/(nm .km)                       1
Numerical Aperture (NA)                                 0.200 ± 0.015                            2
                                                   ≥500 MHz.km @ 850 nm
Bandwidth                                                                                        1
                                                   ≥500 MHz.km @ 1300 nm
Bending Loss
                                                  ≤ 0.5 dB @ 850 & 1300 nm                       1
(100 turns, D=75 mm)
Coating Strip Force                                      3.0 N (mean)
                                                                                                 2
(@ 0 °C to +45 °C)                                     2.2 N ≤ F ≤ 4.4 N
                                         Cable attributes
Item                                                        Description                         Notes
                                                    ≤ 2.7 dB/km @ 850 nm
Attenuation coefficient                                                                          1
                                                   ≤ 0.8 dB/km @ 1300 nm
Attenuation at 1380 nm minus
                                                            ≤ 1.5 dB /km                         1
Attenuation at 1300 nm
Attenuation Uniformity / Point
                                                             ≤ 0.10 dB                           1
Discontinuities, 850 & 1300 nm

Notes:1. Qualification Requirement
      2. Typical Value, Not Specified




                                        Page 3 of 11
OUTDOOR/ARMORED FIBER OPTIC CABLE

3.   Cross Section of Cable


                                           24 Fibers




                                           36 Fibers




                                                                             Not to scale



Fig.2-1 Cross-section view of OUTDOOR/ARMORED, double jacket, multi loose tube fiber optic cable




                                         Page 4 of 11
OUTDOOR/ARMORED FIBER OPTIC CABLE

                     48 Fibers                                     72 Fibers




                     96 Fibers                                     120 Fibers




                                                                                 Not to scale




Fig.2-2 Cross-section view of OUTDOOR/ARMORED, double jacket, multi loose tube fiber optic cable




                                         Page 5 of 11
OUTDOOR/ARMORED FIBER OPTIC CABLE

                                          144 Fibers




                                          216 Fibers




                                                                               Not to scale



Fig.2-3 Cross-section view of OUTDOOR/ARMORED, double jacket, multi loose tube fiber optic cable




                                         Page 6 of 11
     OUTDOOR/ARMORED FIBER OPTIC CABLE

     4.      Cable Construction

             The construction of the cable shall be in accordance with Table 2 below.

           Table 2. Construction of OUTDOOR/ARMORED, double jacket, multi loose tube fiber optic cable

                                                                          Description
                   Item
                                             2-30 Fibers          36 Fibers         48-60 Fibers         72 Fibers
Optical Fiber             Construction                                        Table 1
Filling Compound          Material                              Thixotropic Jelly Compound
                          Material                   (PBT) Polybutylene Terephthalate with color coding
                          Fiber per Tube                Max.6                               Max.12
Loose Tube                Number                 1-5                6                4-5                6
                                             Fibers are brought together with the filling compound and placed in
                          Assembly
                                                                     the extruded tube
                          Material                                 Polyethylene, natural color
Filler Rod
                          Number                 4-0                  0                1-0                   0
Stranding                 Method                    Reverse oscillating lay (ROL) technique (SZ Direction)
Central Strength                                             FRP (Fiberglass Reinforce with Plastic)
                          Material
Member                                                       If necessary jacketed with polyethylene
Water Blocking                                                 Suitable Water Swellable Materials
                          Material
Elements                                                             (Dry-Core Technology)
                          Material                                    Water Blocking Tape
Core Covering
                          Assembly               The tape shall be wrapped longitudinally over the cable core
                          Material                Aramid yarns or Flexible E-glass yarns (When necessary)
Additional Strength
Member                                         The quantity of additional strength member shall be selected to
                          Number               minimize cable cost while meeting the performance requirement
                                                                  of the cable applications
1st Ripcord               Material                                        Plastic thread
Inner Sheath              Material                                     Black Polyethylene
2nd Ripcord               Material                                        Aramid yarns
                          Material                         Corrugated steel tape coated with polymer
Armoring                                                             Steel : 0.15 ± 0.020 mm
                          Thickness
                                                           Steel tape & Plastic coat : 0.27 ± 0.027 mm
                     Material                                   Black High Density Polyethylene
Outer Sheath
                     Thickness                                          Minimum 1.5 mm
Cable Diameter (Approx.) mm                     15.0                 16.0                16.5              17.5
Cable Weight (Approx.) kg/km                    205                   225                240               270
Structure                                                                      Fig. 2

     Note: The nominal value of a parameter refers to a design target. The thickness of the thinnest point
     shall not be measured at the groove of the ripcord or the lapping point of steel corrugated tape.

     Manufacturer may use additional suitable tape(s), thread(s) or dielectric elements into suitable place
     in the cable for manufacturer's reason.




                                                    Page 7 of 11
     OUTDOOR/ARMORED FIBER OPTIC CABLE

     Table 2. (Con’t) Construction of OUTDOOR/ARMORED, double jacket, multi loose tube fiber optic cable

                                                                        Description
                 Item
                                          84-96 Fibers       108-120 Fibers     132-144 Fibers       156-216 Fibers
Optical Fiber           Construction                                      Table 1
Filling Compound        Material                              Thixotropic Jelly Compound
                        Material                   (PBT) Polybutylene Terephthalate with color coding
                        Fiber per Tube                                  Max.12
Loose Tube              Number                 7-8              9-10              11-12              13-18
                                           Fibers are brought together with the filling compound and placed in
                        Assembly
                                                                   the extruded tube
                        Material                              Polyethylene, natural color
Filler Rod
                        Number                 1-0               1-0               1-0                5-0
Stranding               Method                   Reverse oscillating lay (ROL) technique (SZ Direction)
Central Strength                                           FRP (Fiberglass Reinforce with Plastic)
                        Material
Member                                                     If necessary jacketed with polyethylene
Water Blocking                                               Suitable Water Swellable Materials
                        Material
Elements                                                           (Dry-Core Technology)
                        Material                                    Water Blocking Tape
Core Covering
                        Assembly              The tape shall be wrapped longitudinally over the cable core
                        Material               Aramid yarns or Flexible E-glass yarns (When necessary)
Additional Strength
Member                                      The quantity of additional strength member shall be selected to
                        Number              minimize cable cost while meeting the performance requirement
                                                               of the cable applications
1st Ripcord             Material                                        Plastic thread
Inner Sheath            Material                                     Black Polyethylene
2nd Ripcord             Material                                        Aramid yarns
                        Material                         Corrugated steel tape coated with polymer
Armoring                                                           Steel : 0.15 ± 0.020 mm
                        Thickness
                                                         Steel tape & Plastic coat : 0.27 ± 0.027 mm
                     Material                                 Black High Density Polyethylene
Outer Sheath
                     Thickness                                        Minimum 1.5 mm
Cable Diameter (Approx.) mm                   19.5                 21.5                23.5              23.5
Cable Weight (Approx.) kg/km                  330                   400                480               475
Structure                                                                    Fig. 2


     Note: The nominal value of a parameter refers to a design target. The thickness of the thinnest point
     shall not be measured at the groove of the ripcord or the lapping point of steel corrugated tape.

     Manufacturer may use additional suitable tape(s), thread(s) or dielectric elements into suitable place
     in the cable for manufacturer's reason.




                                                  Page 8 of 11
 OUTDOOR/ARMORED FIBER OPTIC CABLE

 5.   Temperature Range

      For the cables covered by this specification, the following temperature ranges apply:
      - Operation                : -20°C to +70°C
      - Installation             : -20°C to +70°C
      - Storage/Shipping         : -40°C to +70°C


 6.   Fiber and Loose Tube Identification

      The color code of the loose tubes and the individual fibers within each loose tube shall be in
      accordance with Table4below.TIA/EIA-598-A Color Code for Fiber and Loose tube Identification.


               Table 3.TIA/EIA-598-A Color Code for Fiber and Loose tube Identification

                                                                       Loose Tube color
        No.                       Fiber color
                                                                 1st Layer           2nd Layer
         1                            Blue                         Blue                 Blue
         2                          Orange                         Orange                     Orange
         3                           Green                         Green                      Green
         4                           Brown                         Brown                      Brown
         5                           Slate                          Slate                     Slate
         6                           White                         White                      White
         7                            Red                           Red                        Red
         8                           Black                          Black                     Black
         9                          Yellow                         Yellow                     Yellow
        10                           Violet                         Violet                    Violet
        11                           Rose                           Rose                      Rose
        12                           Aqua                           Aqua                      Aqua




                              Table 4. Mechanical Specification of the cable

                       Item                                             Specification
Maximum allowable pulling tension                                            2,000 N
                               During Installation
                                                               20 x External Diameter of Cable
Minimum bending                Or handling
Radius                         During Service
                                                               10 x External Diameter of Cable
                               Or fixed

      Note: The maximum allowable pulling tension is the greatest pulling force that can be applied
            to a cable during installation without cable damaging




                                              Page 9 of 11
 OUTDOOR/ARMORED FIBER OPTIC CABLE

 7.   Mechanical/Environment Performance and Test

      This section covers the mechanical and environmental for the cable

                     Table 5. Mechanical, Environmental Requirements for the cables


       Item                         Specification                              Method
Torsion Test          0.20 dB Max. Mean Added Loss at       TIA/EIA-455-85A or IEC -60794-1-E7
                      1300 nm. No cable jacket cracking     Test sample; 2 m Maximum
                      or splitting.                         Load; per table 2, EIA-455-85A
                                                            Rotation; ±180 degree, 5 cycles
Tensile               0.20 dB Max. Mean Added Loss at       IEC-60794-1-E1A
Performance Test      1300 nm at rated tensile load.        Test sample; 25 m Minimum
                                                            Sheave Dia.;480 mm (Universal)
                                                            Load; maximum rated tensile load
                                                            Duration ; 1 hr
Impact Test           0.40 dB Max. Mean Added Loss at       TIA/EIA-455-25B or IEC-60794-1-E4
                      1300 nm                               Starting Energy; depend on cable diameter,
                                                            per Table 1 EIA/TIA-455-25B
                                                            Number Impact; 25
                                                            Test sample; Approx. 20 m
Repeated Bending      0.20 dB Max. Mean Added Loss at       TIA/EIA-455-104A or IEC-60794-1-E6
Test                  1300 nm. No cable jacket cracking     Sheave Dia.; 20 x cable dia.
                      or splitting.                         Number Cycles ; 25
                                                            Load; per Table 2, EIA-455-104A
                                                            Test Sample ; Approx. 20 m
Compression test      0.20 dB Max. Mean Added Loss at       TIA/EIA-455-41A or IEC-60794-1-E3
                      1300 nm. No cable jacket cracking     Load; 4,400N(440N/cm) armored
                      or splitting.                         Duration; 10 minutes
                                                            Test sample ; Approx.20 m
Cable bending Test    0.20 dB Max. Mean Added Loss at       IEC-60794-1-E11B
                      1300 nm. No cable jacket cracking     Mandrel Diameter : 20 x Cable Outer
                      or splitting.                         Diameter
                                                            Cycles : 1
Water Penetration     No fluid leakage through the open     EIA-455-82B or IEC-60794-1-F5
Test                  cable end after 1 hour.               Fluid Pressure; 1m static head or equivalent
                                                            pressure.
                                                            Test sample ; 3 m
                                                            Duration ; 1 hour
Temperature           0.50 dB/km Max. Mean Added Loss       TIA/EIA-455-3A or IEC-60794-1-F1
Cycling test          at 1300 nm at operating temp. No      Time at Temp. ; At least 16 hr. Each Temp.
                      cable jacket cracking or splitting.   Temp. Range ;-10°C (±2°C )Minimum
                                                                            +70°C (±2°C )Maximum
                                                            Number of Cycles; Not less than 1 cycle




                                            Page 10 of 11
OUTDOOR/ARMORED FIBER OPTIC CABLE

8.   Cable Marking and Shipping Requirements

     8.1 Sheath marking

     The sheath marking is available upon customer's request. The sheath marking shall be printed
     (Hot Stamp) on the outer sheath of the cable with white color in one-meter intervals.

     8.2 Reels

     8.2.1 The cable will be delivered at the required length on a wooden reel. The reels are
           designed to prevent damage to the cable during shipment and installation.

     8.2.2 The cable shall be delivered on wooden reel in standard manufacturing length of 1,000 or
           2,000 m. (Special length is available upon request)

     8.2.3 The diameter of the barrel shall be not less than 30 times of the outer diameter of the
           cable.

     8.2.4 Circumference shall be completely enclosed with wooden battens, these battens shall be
           secured by nails to each flange. There are steel bands are strapped about the wooden
           batten to help secure the battens to the reel.

     8.2.5 To provide access for testing, the inner end of the cable protrudes through the inside of
           the reel. The end is wound between rings located on the side of the flange to protect it
           during transport and storage. The length of the inner end is typically 3 meters. The cable
           ends are securely fastened so as not to protrude beyond any portion of the reel in an
           unprotected manner and to prevent the cable from becoming loose in transport.

     8.3 Sealing and Cable Termination

     The both end of the cable shall be sealed with a suitable rubber cap or heat shrinkable cap to
     prevent ingress of moisture.

     8.4 Information Accompanying the Reel

     The following information is securely attached to the reel.

                       - Manufacturer's Name                       - Drum No.
                       - Customer's Name                           - Reel ID.
                       - Customer Order Number                     - Ship Length
                       - Customer Part Number (if Applicable)      - Gross Weight
                       - Kind & Size (Cable Description)           - Net Weight
                       - Order Length                              - Date
                       - Outside sequential
                       - Inside sequential
                       - Inspected by




                                            Page 11 of 11

								
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