Single mode Optical GYTA Outdoor 4 Core Non-Armored Fiber Optic Cable/Communication Cable
1. General
This specification covers the design requirements of structure, mechanical, physical and performance standards for the supply of optical fiber cables. The features described in this document are intended to provide information on the performance of optical cable.
2. Specifications
2.1 General Specifications
Cable Type | GYTA |
Fiber Type | G652D, G657A1 |
Application | Long-distance communication, LAN |
Recommended installation methods | Duct or aerial |
Environment | Outdoor |
Temperature Range | -40ºC to 70ºC |
2.2 Fiber Specifications
Fiber style | Unit | SM G652D | SM G657A1 | SM G657A2 | ||
condition | nm | 1310/1550 | 1310/1550 | 1310/1550 | ||
attenuation | dB/km | ≤0.36/0.23 | ≤0.35/0.21 | ≤0.35/0.21 | ||
Dispersion | 1310nm | Ps/(nm*km) | ≤18 | ≤18 | ≤18 | |
1550nm | Ps/(nm*km) | ≤22 | ≤22 | ≤22 | ||
Zero dispersion wavelength | nm | 1312±10 | 1312±10 | 1300-1324 | ||
Zero dispersion slope | ps/(nm²×Km) | ≤0.091 | ≤0.090 | ≤0.092 | ||
PMD Maximum Individual Fiber | [ps/√km] | ≤0.2 | ≤0.2 | ≤0.2 | ||
PMD Design Link Value | ps/(nm²×Km) | ≤0.08 | ≤0.08 | ≤0.08 | ||
Fiber cutoff wavelength λc | nm | >=1180,≤1330 | >=1180,≤1330 | >=1180,≤1330 | ||
Cable cutoff wavelength λcc | nm | ≤1260 | ..... | ..... | ||
MFD | 1310nm | um | 9.2±0.4 | 9.0±0.4 | 9.8±0.4 | |
1550nm | um | 10.4±0.8 | 10.1±0.5 | 9.8±0.5 | ||
Step(mean of bidirectional measurement) | dB | ≤0.05 | ≤0.05 | ≤0.05 | ||
Irregularities over fiber length and point discontinuity | dB | ≤0.05 | ≤0.05 | ≤0.05 | ||
Difference backscatter coefficient | dB/km | ≤0.03 | ≤0.03 | ≤0.03 | ||
Attenuation uniformity | dB/km | ≤0.01 | ≤0.01 | ≤0.01 | ||
Cladding diameter | um | 125.0±0.1 | 124.8±0.1 | 124.8±0.1 | ||
Cladding non-circularity | % | ≤1.0 | ≤0.7 | ≤0.7 | ||
Coating diameter | um | 242±7 | 242±7 | 242±7 | ||
Coating/chaffinch concentrically error | um | ≤12.0 | ≤12.0 | ≤12.0 | ||
Coating non circularity | % | ≤6.0 | ≤6.0 | ≤6.0 | ||
Core/cladding concentricity error | um | ≤0.6 | ≤0.5 | ≤0.5 | ||
Curl(radius) | um | ≥4 | ≥4 | ≥4 |
2.3 Cable Structure

2.4 Cable Properties
Item | Description | |
Tensile strength(N) | Long-term | 600 |
Short-term | 1500 | |
Crush(N/100mm) | Long-term | 300 |
Short-term | 1000 | |
Min. Bend Radius | Static | 10D |
Dynamic | 20D | |
Temperature Range(ºC) | Operation | -40ºC - +70ºC |
Installation | -10ºC - +50ºC | |
Storage | -40ºC - +70ºC |
2.5 Cable Sheath Marking
Each cable have the following information clearly marked on the outer jacket of cables:
a. Name of manufacturer.
b. Year of manufacturer
c. Type of cable and fiber
d. Length mark (printing on each meter normally)
e. Or as customer's requirements.
Company Info



Established in 2002, Dongguan TW-SCIE Co., Ltd. is a comprehensive high-tech enterprise that integrates R&D, manufacture, sale of fiber optic communication products and network engineering. We have two manufacturing bases, one is in Donguan, Guangdong which occupies about 30000m2 with 20000m2 production factory, and the other is in Deyang, Sichuan which occupies 40000m2 with 20000m2 production factory. The annual production capacity of the two bases are 20 million core kilometers.
We are dedicated in R&D and application of fiber optic products and have obtained 5 invention patents and 58 utility model patents. The main products are indoor/outdoor fiber optic cable, ADSS, OPGW, FTTH drop cable, patch cord, pigtail and related accessories. The products conform to the China National Standard strictly and have obtained certificates of Anatel, CE, RoHs, Reach, ISO9001, ISO14004, OHSAS1801 and so on.
We are dedicated in R&D and application of fiber optic products and have obtained 5 invention patents and 58 utility model patents. The main products are indoor/outdoor fiber optic cable, ADSS, OPGW, FTTH drop cable, patch cord, pigtail and related accessories. The products conform to the China National Standard strictly and have obtained certificates of Anatel, CE, RoHs, Reach, ISO9001, ISO14004, OHSAS1801 and so on.






Our products have passed every required test, and we will affix the certificate of qualification after passing the test. Finally delivered to the customer. In the past 20years, the company has been adhering to the principle of "quality first, customer first" and has gained a good reputation among customers at home and abroad. And it has set the standard in cable and communications.


Audrey Zhang