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
G.655

Non-zero Dispersion Shifted fiber per ITU-T
G.656

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
or Semi-Tight Cables

 

 

 

 

@1310nm

≤0.38

-

dB/km

 

@1550nm

≤0.28

-

dB/km

 

 

 

 

 

Chromatic
Dispersion

between 1260 and 1360nm
(O Band)

 

≤3.5

 

NA-

 

-

 

ps/(nm*km)

 

between 1460 and 1530nm
(S Band)

 

-

 

-

2.0-7.0

ps/(nm*km)

 

between 1530 and 1565nm
(C Band)

≤18

1.0-10.0

7.0-10.0

ps/(nm*km)


 

between 1565 and 1625nm
(L Band)

≤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
Diameter

@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 ~
+70oC @ 1310 & 1550nm

0.1

0.1

0.1

Db/km

The fibers contain no splices.

Basic Construction

12 Fibers, Loose Tube Fiber optic Cable

SM Multi Loose Tube Mica Wrapped LSZH Inner Jacket Steel Wire Braided LSZH Outer Jacket Fire

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, 1.80.1 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
(N)

In Service
(N)

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