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Customized Products
SM Multi Loose Tube Mica Wrapped LSZH Inner Jacket Steel Wire Braided LSZH Outer Jacket Fire Resisting
FO Cable
General Description
This document specifies multi loose tube cable with steel central strength member, containing up to 36 tube and
each tube contain up to 6 or 8 fibers. Jelly filled loose tubes are wrapped with mica and fire resisting tape. The
cable jacket incorporates LSZH inner jacket, steel wire braiding and LSZH outer jacket. All the fibers in the cores
are filled with water blocking gel.
Optical Characteristics
The single-mode cabled fibers meet or exceed the requirements of ITUT G.652D and comply with IEC60793-2, as
listed in below:
Table 1.
Parameter |
|
Standard Single Mode Fiber per ITU-T G.652D |
Non-zero Dispersion Shifted fiber per ITU-T |
Non-zero Dispersion Shifted fiber per ITU-T |
Units |
|---|---|---|---|---|---|
Fiber Code |
|
9 |
8 |
7 |
|
Attenuation, Loose Tube Cables |
Standard |
Metro Area |
Long Haul |
|
|
|
@1310nm |
≤0.35 |
- |
- |
dB/km |
|
@1550nm |
≤0.22 |
≤0.22 |
≤0.22 |
dB/km |
|
@1625nm |
≤0.25 |
≤0.26 |
≤0.26 |
dB/km |
Attenuation, Tight Buffer |
|
|
|
||
|
@1310nm |
≤0.38 |
- |
dB/km |
|
|
@1550nm |
≤0.28 |
- |
dB/km |
|
|
|
|
|
|
|
Chromatic |
between 1260 and 1360nm |
≤3.5 |
NA- |
- |
ps/(nm*km) |
|
between 1460 and 1530nm |
- |
- |
2.0-7.0 |
ps/(nm*km) |
|
between 1530 and 1565nm |
≤18 |
1.0-10.0 |
7.0-10.0 |
ps/(nm*km) |
|
between 1565 and 1625nm |
≤22 |
7.0-12.0 |
10.0-14.0 |
ps/(nm*km) |
Zero Dispersion Wavelength |
1310±11 |
≤1520 |
≤1420 |
nm |
|
Zero Dispersion Slope |
0.093 |
0.093 |
0.093 |
ps/(nm2.km) |
|
Point Discontinuity at 1300nm& 1550nm |
0.1 |
0.1 |
0.1 |
dB |
|
Mode Field |
@1300nm |
9.3±0.5 |
- |
|
um |
|
@1550nm |
10.4±0.8 |
8.5±0.6 |
9.0±0.5 |
um |
Cable Cut-off Wavelength |
≤1260 |
≤1450 |
≤1310 |
nm |
|
PMD (Individual fiber) |
≤0.2 |
≤0.2 |
≤0.2 |
ps/km 1/2 |
|
Cladding Diameter |
125±1 |
125±1 |
125±1 |
um |
|
Core/Cladding Concentricity Error |
≤0.5 |
≤0.5 |
≤0.6 |
um |
|
Cladding Non-Circularity |
≤1.0 |
≤1.0 |
≤1.0 |
% |
|
Coating Non-Circularity |
≤6.0 |
≤6.0 |
≤6.0 |
% |
|
Primary Coating Diameter |
245±10 |
245±10 |
245±10 |
um |
|
Proof-Test Level |
100 (0.7) |
100 (0.7) |
100 (0.7) |
Kpsi/GN/m2 |
|
Fatigue Coefficient |
≥20 |
≥20 |
≥20 |
|
|
Temperature Dependence between 0 C ~ |
0.1 |
0.1 |
0.1 |
Db/km |
|
The fibers contain no splices.
Basic Construction
12 Fibers, Loose Tube Fiber optic Cable
﹡Optical Fiber
Single-mode fibers meet or exceed the requirements of ITUT G.652D specification
﹡Central Strength Member
2.5mm steel wire central strength member. PE is coated over the steel if necessary.
﹡Loose Tube
PBT tubes, 1.80.1 mm outer diameter, contains 1-6 fibers each. The tubes are filled with a thixotropic gel to
prevent the ingress of water. Mica tape wraps each loose tube helically.
﹡Fire Resisting Tape
Fire resisting tape provides additional protection against fire.
﹡Inner Jacket
LSZH inner jacket is extruded over the cable core. The thickness is normally 1.0mm.
﹡Steel Wire Braiding
Steel wire braiding is applied over the inner jacket. Outer diameter of the steel wire is 0.2mm
﹡Outer Jacket
LSZH outer jacket is extruded over the armor. Nominal thickness is about 1.8mm
﹡Marking
The meter mark is printed every meter with an accuracy of 0.5%. Other printing are available according to customer request.
﹡Length of Optical Cable
Standard length of each reel will be 1,000-2,000 meters.
Table 2. Technical Characteristics
No. of Cores |
Outer Diameter (mm) |
Approx. Weight (Kg/Km) |
Maximum Pulling Load |
|
|---|---|---|---|---|
Installation |
In Service |
|||
12 |
14.6 |
265 |
2700 |
1300 |
Mechanical Properties:
Minimum Bending Radius:
Under installation:25×OD
During operation:12.5×OD for armoured cables.
Temperature Range:
Operating Temperature Range:-40℃(-40 oF) to +70℃(+158 oF)
Storage Temperature Range:-50℃(-58 oF) to +70℃(+158 oF)
Maximum Crush Resistance: 2000N
Repeated Impact: 4.0 N.m (J)
Twist (Torsion):180 x 10 times, 125 x OD
Cyclic Flexing:25 cycles for armoured cables.;
Fiber Compliance:
Water penetration test IEC60794-1-F5
Filling Drip/Leak test EIA/TIA-455-81A
Temperature cycling IEC60794-1-2-F2
Tensile strength IEC60794-1-2-E1A
Compressive load resistive test IEC60794-1-2-E3
Impact IEC60794-1-2-E4
Repeated bending IEC60794-1-2-E6
Torsion IEC60794-1-2-E7
Kink IEC60794-1-2-E10
Mechanical flexure test IEC60794-1-2-E11
Cool bend IEC60794-1-2-E11
Safety Compliance:
FR Grade
Fire Resistance Test: IEC 60331
Standard Compliance:
Telcordia GR-20 RUS 7 CFR 1755.900 (REA PE-90) ICEA S 87-640