1. General
Non-Armored Uni-Tube optical cable with fibers placed in loose
buffer tube.The cable core is protected with jelly to prevent water
intrusion and migration, and cover with a black polyethylene out
jacket. Two embedded FRP or metallic wire provide desire tension.
The cable consists of a central loose tube, filled with a synthetic
oil based jelly, non-nutritive to fungus, electrically
non-conductive, homogeneous and free from dirt and foreign matter,
containing up to 12 optical fibres.Two Fiber Reinforced Plastics
(FRP) elements are longitudinally applied parallel with the tube,
and an outer black PE sheath, UV resistant.
Characteristic
1. Small size, Low cost.
2. the fiber counts is up to 24 fibers.
3. Uni-tube gel-filled construction for superior fiber protection.
4. Two parallel FRP wire and overall glass yarn to enhance tensile
resistant.
5. And protect cable from mechanical damage.
6. Designed for use with inexpensive attachment hardware.
7. Self-supported no messenger needed.
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.
