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					OUTDOOR/MULTI LOOSE TUBE FIBER OPTIC CABLE




                             FOR

                FIBER OPTIC CABLE
            OUTDOOR/MULTI LOOSE TUBE
                   SINGLEMODE


               UFC 94XXM : 9/125 µm




                           Page 1 of 12
OUTDOOR/MULTI LOOSE TUBE FIBER OPTIC CABLE

1.   Application

     This specification covers the construction and properties of single jacket dry core loose tube fiber optic
     cable 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. Aramid yarns or flexible e-glass
     yarns, which provide additional tensile strength, are applied over the water blocking tape. The cable
     sheath is composed of a smooth high density polyethylene (HDPE) jacket. And the optical fibers are in
     compliance with ITU-T Rec. G.652.D

     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.




                                               Page 2 of 12
OUTDOOR/MULTI LOOSE TUBE FIBER OPTIC CABLE

2.   Optical Fiber

     LINK Zero Water Peak (ZWP) Single Mode Fiber consists of a germanium doped core and a silica
     cladding. The fiber is fully compatible with other commercially available matched cladding fibers.
     LINK ZWP Single Mode Optical Fiber is the industry’s first fiber designed for use with transmission
     systems operating in entire wavelength region from 1280 to 1630 nm. Current systems operate in
     either the 2nd window (1280-1325 nm) or the 3rd window (1530-1565 nm). The 5th window from 1350
     to 1450 nm has not been available because of higher attenuation (up to 1 dB/km) over much of the
     region. LINK ZWP fiber enables usage over this much wider range because of a new manufacturing
     process, which practically eliminates the incorporation of OH ions (water) into the fiber.
      A concentration of several parts per billion (ppb) of OH ions in a conventional single mode fiber core
     cause the attenuation in the region around 1385 nm (the “water” peak) to be up to 300% higher than in
     the 1310 nm region. With LINK ZWP fiber, the attenuation in the 5th window is always less than that in
     the 2nd window.

     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 Refractive index profile, Dispersion Unshifted Single Mode Fiber.



                                                                  Core


                                                                  Cladding


                                                                  Inner Primary Coating

                                                                  Outer Primary Coating


                                                                  Identification


                                                                     Not to scale
                                       125µm



                                       255µm



                 Fig. 2 Cross Section View of Dispersion Unshifted Single Mode Fiber.

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

                                               Page 3 of 12
 OUTDOOR/MULTI LOOSE TUBE FIBER OPTIC CABLE

 Table 1. The Optical, Geometrical Performance of the Singlemode Fiber (The specification
 conforms to the requirement of ISO/IEC11801, TIA/EIA-568-B.3, IEC60793-2B1.3, ITU-T Rec.
 G.652.D, Bellcore GR-20-CORE)


                                            Fiber attributes
                    Item                                        Description                        Notes
Manufacturing Method                               VAD (vapor axial deposition method)               -
Refractive Index Profile                              Step Index, Matched Cladding                   -
Core                                               Germania (GeO2) doped Silica (SiO2)               -
Core Diameter                                                      8.3 µm                            2
Cladding                                                        Silica (SiO2)                        -
Primary Coating                                         2 layers of UV curable resin                 -
Index of refraction Difference                                     0.36%                            2
Group refractive index *                             1.467 @ 1310 nm and 1550 nm                    2
Cladding Diameter                                               125 ± 1 µm                           1
Cladding Non-Circularity                                           ≤1%                               1
Core/Cladding Concentricity error                                 ≤ 0.5 µm                           1
Coating Diameter (uncolored)                                    245 ± 10 µm                          1
Coating/Cladding Concentricity error                              ≤ 12 µm                            1
Colored Fiber Diameter                                          255 ± 10 µm                          1
                                                         9.2 ± 0.4 µm @ 1310 nm
Mode Field Diameter                                                                                  1
                                                        10.4 ± 0.6 µm @ 1550 nm
                                              The entire length of fiber is subjected to tensile
Proof test stress                                    stress greater than 0.69 GN/ m2                 1
                                                   (100 kpsi) : 1% strain equivalent, 1s
                                                           ≤ 0.05 dB @ 1310 nm
Attenuation       100 turns, 50 mm radius
                                                           ≤ 0.10 dB @ 1550 nm                       1
with Bending
                  1 turns, 32 mm radius                    ≤ 0.50 dB @ 1550 nm
Zero-Dispersion Wavelength (λ0)                             1302 ≤ λ0 ≤1322 nm                       1
                                                                             2
Max. Zero-Dispersion Slope (S0max) at λ0                   ≤ 0.092 ps/(nm .km)                       1
                                               D(λ) = λS0max / 4 • [1 - {λ0/λ}4] ps/(nm•km
Chromatic dispersion coefficient, D(λ)                                                               1
                                                       (λ = Operating Wevelength)
Coating Strip Force
                                                     1.3N (0.3lbf) ≤ F ≤ 8.9 N (2.0lbf)              2
(@ 0 °C to +45 °C)
                                            Cable attributes
                    Item                                        Description                        Notes
                                                         ≤ 0.35 dB/km @ 1310 nm
                                                         ≤ 0.32 dB/km @ 1383 nm
Attenuation coefficient                                                                              1
                                                         ≤ 0.22 dB/km @ 1550 nm
                                                         ≤ 0.30 dB/km @ 1625 nm
Cabled Cut-off Wavelength (λcc)                                  ≤ 1260 nm                           1
Polarization mode dispersion (PMD)
(Link Design Value)
                                                               ≤ 0.20 ps/√km                         1
 Notes: 1. Qualification Requirement
        2. Typical Value, Not Specified


                                             Page 4 of 12
OUTDOOR/MULTI LOOSE TUBE FIBER OPTIC CABLE

3.   Cross Section of Cable


                                               24 Fibers




                                               36 Fibers




                                                                         Not to scale



        Fig. 3-1 Cross-section view of outdoor/multi loose tube, single jacket fiber optic cable.




                                             Page 5 of 12
OUTDOOR/MULTI LOOSE TUBE FIBER OPTIC CABLE

                   48 Fibers                                                96 Fibers




                   72 Fibers                                                120 Fibers




                                                                                   Not to scale




     Fig. 3-2 Cross-section view of outdoor/multi loose tube, single jacket fiber optic cable.




                                          Page 6 of 12
OUTDOOR/MULTI LOOSE TUBE FIBER OPTIC CABLE

                                           144 Fibers




                                           216 Fibers




                                                                                Not to scale




     Fig. 3-2 Cross-section view of outdoor/multi loose tube, single jacket fiber optic cable.




                                          Page 7 of 12
     OUTDOOR/MULTI LOOSE TUBE FIBER OPTIC CABLE

     4.      Cable Construction

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

                    Table 2. Construction of outdoor/multi loose tube, single jacket fiber optic cable.

                                                                             Description
                   Item
                                            Up to 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
Ripcord              Material                                             Plastic thread
                     Material                                    Black High Density Polyethylene
Sheath
                     Thickness                                            Nominal 1.5 mm
Cable Diameter (Approx.) mm                       11.0                12.0                 12.5             13.5
Cable Weight (Approx.) kg/km                       85                 100                  110              130
Structure                                                                       Fig. 3

     *The thickness of the thinnest point shall not be measured at the groove of the ripcord.
     **Manufacturer may use additional suitable tape(s), thread(s) or dielectric element into suitable place
     in the cable for manufacturer’s reason.




                                                      Page 8 of 12
     OUTDOOR/MULTI LOOSE TUBE FIBER OPTIC CABLE

                Table 2. (Con’t)Construction of outdoor/multi loose tube, single jacket fiber optic cable.

                                                                           Description
                 Item
                                             84-96 Fibers       108-120 Fibers      132-144 Fibers           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               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                  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
Ripcord              Material                                             Plastic thread
                     Material                                    Black High Density Polyethylene
Sheath
                     Thickness                                          Minimum 1.5 mm
Cable Diameter (Approx.) mm                      15.5                17.5                19.5                  19.5
Cable Weight (Approx.) kg/km                     175                  225                280                   280
Structure                                                                     Fig. 3

     *The thickness of the thinnest point shall not be measured at the groove of the ripcord.
     **Manufacturer may use additional suitable tape(s), thread(s) or dielectric element into suitable place
     in the cable for manufacturer’s reason.




                                                     Page 9 of 12
OUTDOOR/MULTI LOOSE TUBE 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
                                                               15 x External Diameter of Cable
     Minimum bending            Or handling
     Radius                     During Service
                                                               10 x External Diameter of Cable
                                Or fixed

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




                                               Page 10 of 12
 OUTDOOR/MULTI LOOSE TUBE 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          Maximum attenuation change ≤ 0.10dB       TIA/EIA-455-85A or IEC -60794-1-E7
                      at 1550nm. No cable jacket cracking or    Test sample; 1 m Maximum
                      splitting.                                Load; per table 2, EIA-455-85A
                                                                Rotation; ±180 degree, 10 cycles
Tensile               Maximum attenuation change ≤ 0.10dB       IEC-60794-1-E1A
Performance Test      at1550 nm at maximum allowable            Test sample; 25 m Minimum
                      pulling tension.                          Sheave Dia.;480 mm (Universal)
                                                                Load; maximum rated tensile load
Impact Test           Maximum attenuation change ≤ 0.10dB       TIA/EIA-455-25B or IEC-60794-1-E4
                      at 1550 nm. No cable jacket cracking or   Starting Energy; depend on cable
                      splitting.                                diameter, per Table 1 EIA/TIA-455-25B
                                                                Number Impact; 20
                                                                Test sample; Approx. 20 m
Repeated              Maximum attenuation change ≤ 0.10dB       TIA/EIA-455-104A or IEC-60794-1-E6
Bending Test          at 1550 nm. No cable jacket cracking or   Sheave Dia.; 20 x cable dia.
                      splitting.                                Number Cycles ; 25
                                                                Load; per Table 2, EIA-455-104A
                                                                Test Sample ; Approx. 20 m
Compression test      Maximum attenuation change ≤ 0.10dB       TIA/EIA-455-41A or IEC-60794-1-E3
                      at 1550 nm. No cable jacket cracking or   Load; 2,200N(220N/cm) Non-armored
                      splitting.                                Duration; 10 minutes
                                                                Test sample ; Approx.20 m
Cable bending Test    Maximum attenuation change ≤ 0.10dB       IEC-60794-1-E11B
                      at 1550 nm. No cable jacket cracking or   Mandrel Diameter : 20 x Cable diameter
                      splitting.                                Cycles : 1
Water Penetration     No fluid leakage through the open cable   EIA-455-82B or IEC-60794-1-F5
Test                  end after 1 hour.                         Fluid Pressure; 1m static head or
                                                                equivalent pressure.
                                                                Test sample ; 3 m
                                                                Duration ; 1 hour
Temperature           Max. Attenuation change ≤ 0.10dB/km       TIA/EIA-455-3A or IEC-60794-1-F1
Cycling Test          at 1550 nm and no cable jacket cracking   Time at Temp. ; At least 16 hr. Each
                      or splitting at operating temp.           Temp.
                                                                Temp. Range ;-10°C (±2°C )Minimum
                                                                               +70°C (±2°C )Maximum
                                                                Number of Cycles; Not less than 2 cycle




                                               Page 11 of 12
OUTDOOR/MULTI LOOSE TUBE 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 4,000 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 securely kept 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 12 of 12

				
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