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 | 4 Core GYFXTBY Outdoor Flat Fiber Optic Cable |
| Fiber Type | SM G657A1/ SM G657A2 |
| Application | FTTH, LAN |
| Recommended installation methods | Aerial |
| Environment | Indoor |
| 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 Standard Color Identification of Fiber
| No. | 1 | 2 | 3 | 4 |
| Color | Blue | Orange | Green | Brown |
2.3.1 Strength Member
The strength member is made of Aramid yarns It provides tensile to the cable.
sheath protect cable from water intrusion.
2.3.2 Outer Jacket
PE sheath is extruded over the fiber.
2.3.3 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.
