Spec No.

: ZTT 13-37036 (According to 35630)

Revision: 1.1
Date: Aug. 9 , 2013

TECHNICAL SPECIFICATION
All-Dielectric Self-supporting Fiber Cable
(According to ITU-T G.652)

Manufacturer:
Jiangsu Zhongtian Technology Co., Ltd.
No. 5 Zhongtian Road, NEATA, Nantong City, Jiangsu province, China Tel: +86-513-8919 1138 Fax: +86-513- 8359 9670
1. General
1.1 Scope

This listed specification covers the design requirements and performance standard for the supply of
optical fiber cable in the industry. It also includes ZTT premium designed cable with optical,
mechanical and geometrical characteristics.

Cable type Application

OFC-24G.652D-ADSS-300m span-PE Self-supporting aerial installation cable

1.2 Cable Description

ZTT cable possesses high tensile strength and flexibility in compact cable sizes. At the same time, it
provides excellent optical transmission and physical performance.

1.3 Quality

Excellent quality control is achieved through intense in-house quality check and stringent audit
acceptance by ISO 9001.

1.4 Reliability

Initial and periodic product qualification tests for performance and durability are performed rigorously
to ensure product reliability.

1.5 Reference

The cable which ZTT offered are designed, manufactured and tested according to international
standards as follows:

IEC 60793-1 Optical fiber Part 1: Generic specifications

IEC 60793-2 Optical fiber Part 2: Product specifications
Optical fiber cables- Part 4: Sectional specification- aerial optical cables along
IEC 60794-4
electrical power lines
ITU-T G.650 Definition and test methods for the relevant parameters of single-mode fibers
ITU-T G.652 Characteristics of a single-mode optical fiber and cable
EIA/TIA 598 Color code of fiber optic cables

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2. Optical Fiber
The optical fiber is made of high pure silica and germanium doped silica. UV curable acrylate material
is applied over fiber cladding as optical fiber primary protective coating. The detail data of optical fiber
performance are shown in the following table.
ITU/T G.652 optical fiber uses special spun device to successfully control the value of PMD to ensure
stability during cabling.

G.652D Fiber in cable

Specifications
Category Description
Before cabling After cabling
Attenuation @1310 nm ≤0.34 dB/km ≤0.36 dB/km

Attenuation @1383 nm ≤0.34 dB/km ≤0.35 dB/km

Attenuation @1550 nm ≤0.20 dB/km ≤0.25 dB/km

Zero Dispersion Wavelength 1300~1324nm

Zero Dispersion Slope ≤ 0.092 ps/nm2∙km

Optical
Specifications PMD individual value 0.2 ps/√km

Cable Cutoff Wavelength (λcc) ≤1260 nm

Macro bending Loss
(100 turns; Ф50 mm) @1550 nm ≤ 0.05 dB
(100 turns; Ф50 mm) @1625 nm ≤ 0.10 dB
Mode Field Diameter @1310 nm 9.2±0.4μm

Cladding Diameter 125 ±1μm

Dimensional
Core/clad concentricity error ≤0.6μm
Specifications
Cladding Non-Circularity ≤1.0%
Mechanical
Proof stress ≥0.69Gpa
Specifications

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 3. CABLE STRUCTURE
3.1 Cable Type: OFC-24G.652D-ADSS-300m span-PE

1
2
3
4
5
6
7
Technical Characteristics 8
 The unique extruding technology provides Construction：
the fibers in the tube with good flexibility and 1. Outer sheath (PE)
bending endurance 2. Strength member(aramid yarns)
 The unique fiber excess length control 3. Inner sheath (PE)
method provides the cable with excellent 4. Loose tube fiber and jelly
mechanical and environmental properties 5. CSM(FRP)
 Multiple water blocking material filling 6. Polyester tape
provides dual water blocking function 7. Cable jelly
 Provides good crush resistance 8. Rip cords(2)

Dimension and Properties

Fiber count 24 G.652D

Max. No of loose tube / filler No. 2/4

Fiber No. per tube 12

Cable OD 12.6mm
Physical
Cable weight Approx. 118kg/km

Operation temperature range -40 deg C to + 70 deg C

Installation temperature range -10 deg C to + 60 deg C

Transport and storage temperature range -40 deg C to + 70 deg C

Max. tensile load 7800N

Crush resistance 2200 N/10cm

Mechanical
Minimal installation bending radius 20 x OD

Minimal operation bending radius 10 x OD

Color code scheme: According to EIA/TIA 598

Fiber color blue orange green brown gray white red black yellow violet pink aqua

Tube color blue orange / / / / / / / / / /

Note: 1. the nominal outer diameter may vary by  5%. 2. The nominal cable weight may vary by 10%.
3. The picture is only for reference

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4. Test Requirements

Approved by various professional optical and communication product institution, ZTT also conduct
various in-house testing in its own Laboratory and Test Center. She also conduct test with special
arrangement with the Chinese Government Ministry of Quality Supervision & Inspection Center of Optical
Communication Products (QSICO). ZTT possess the technology to keep its fiber attenuation loss within
Industry Standards.

The cable is in accordance with applicable standard of cable and requirement of customer. The following
test items are carried out according to corresponding reference.

Routine tests of optical fiber

Mode field diameter IEC 60793-1-45

Mode field Core/clad concentricity IEC 60793-1-20

Cladding diameter IEC 60793-1-20

Cladding non-circularity IEC 60793-1-20

Attenuation coefficient IEC 60793-1-40

Chromatic dispersion IEC 60793-1-42

Cable cut-off wavelength IEC 60793-1-44

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Test for outdoor cable
4.1 Tension Loading Test

Test Standard IEC 60794-1-2 E1

Sample length No less than 50 meters
Load Max. tension load
Duration time 1 minute
Fiber strain:≤0.60%
Test results Additional attenuation:≤0.1dB
No damage to outer jacket and inner elements

4.2 Crush/Compression Test

Test Standard IEC 60794-1-2 E3

Load Crush load
Duration time 1 minute
Test number 3
Additional attenuation:≤0.1dB
Test results
No damage to outer jacket and inner elements

4.3 Impact Resistance Test

Test Standard IEC 60794-1-2 E4

Impact energy 10J
Radius 300mm
Impact points 3
Impact number 1
Additional attenuation:≤0.1dB
Test result
No damage to outer jacket and inner elements

4.4Repeated Bending test

Test Standard IEC 60794-1-2 E6

Bending radius 20 X diameter of cable
Cycles 30 cycles
Additional attenuation: ≤ 0.1dB
Test result
No damage to outer jacket and inner elements

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4.5 Torsion/Twist Test

Test Standard IEC 60794-1-2 E7

Sample length 2m
Angles ±180 degree
cycles 5
Additional attenuation:≤0.1dB
Test result
No damage to outer jacket and inner elements

4.6 Bend Test

Test Standard IEC 60794-1-2 E11B

Mandrel diameter 20 X diameter of cable
Turn number 4
Number of cycles 3
Additional attenuation: ≤0.1dB
Test result
No damage to outer jacket and inner elements

4.7 Temperature cycling Test

Test Standard IEC 60794-1-2 F1

Temperature step +20℃ →-40℃ →+70℃→+20℃
Time per each step 12 hrs
Cycles 2

Test result Attenuation variation for reference value (the attenuation to be measured
before test at +20±3℃) ≤ 0.10 dB/km

4.8 Water penetration Test

Test Standard IEC 60794-1-2 F5

Height of water column 1m
Sample length 3m
Test time 24 hrs
Test result No water leakage from the opposite of the sample

4.9 Drip Test

Test Standard IEC 60794-1-2 E14

Sample length 0.3m
Temperature 70 ℃
Duration 24 hrs
Test result No filling compound shall drip from tubes

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5. Packing and Drum
5.1 ZTT cables are packed in carton, coiled on Bakelite & wooden drum. During transportation, right tools
should be used to avoid damaging the package and to handle with ease. Cables should be protected
from moisture; kept away from high temperature and fire sparks; protected from over bending and
crushing; protected from mechanical stress and damage.

Wooden strip seal

Wooden flange

Inner tub
Cable fixing point

Axle hole
Cable trough

5.2 The color of cable marking is white. (The printing shall be carried out at interval of 1 meter on the
outer sheath of cable) The inner end of cable is then sealed with heat shrinkable end cap to prevent
ingress of water and is made available for testing. The outer end of cable is equipped with heat
shrinkable end cap. Outer sheath marking legend can be changed according to user’s requests.

5.3 Outdoor cable packing

Bakelite & wooden drum
Strong wooden batten protection

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6. Name of ZTT Optical Fiber Cable

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