| Cable Cross-section |
| Cable Specification |
1. Introduction
Simplex cable uses single buffer fiber as optical communication medium, buffer fiber wrapped with a layer of aramid yarns as strength member and finally the cable is completed with TPU jacket.
2. Fiber color code
|
NO. |
1 |
|
Fiber color |
Natural |
3. Buffer color code
|
NO. |
1 |
|
Buffer color |
Blue |
4. Optical fiber type and properties
G657B3 Characteristic of Optical Fiber
|
Item |
Unit |
Specification |
|
|
G. 657A2 |
|||
|
Mode field diameter |
1310nm |
μm |
8.6 ± 0.4 |
|
1550nm |
μm |
9.6 ± 0.5 |
|
|
Cladding diameter |
μm |
124.3~125.0 |
|
|
Cladding non–circularity |
% |
≤1.0 |
|
|
Core concentricity error |
μm |
≤0.5 |
|
|
Coating diameter |
μm |
245 ± 5 |
|
|
Coating/cladding concentricity error |
μm |
≤10 |
|
|
Cable cut-off wavelength |
nm |
≤1260 |
|
|
Attenuation Coefficient |
1310nm |
dB/km |
≤0.35 |
|
1550nm |
dB/km |
≤0.21 |
|
|
Macro–bend loss (1 turn,7.5mm radius) |
1550nm |
dB |
≤0.5 |
|
1625nm |
dB |
≤1.0 |
|
Other parameters meet standard ITU-T G.657
5. Cable structure and parameter
|
Item |
Contents |
Unit |
Value |
|
Fiber cores |
Count |
/ |
1 |
|
Buffer fiber |
Diameter |
mm |
0.9±0.05 |
|
Material |
/ |
LSZH |
|
|
Strength member |
Material |
/ |
Aramid yarns |
|
Outer jacket |
Diameter |
mm |
3.0±0.1 |
|
Material |
/ |
TPU |
|
|
Color |
/ |
Black |
|
|
Tensile strength |
Short term |
N |
700 |
|
Crush |
Short term |
N/100mm |
500 |
|
Cable attenuation |
dB/km |
≤0.4 at 1310nm, ≤ 0.3 at 1550nm |
|
|
Cable weight (Approx.) |
kg/km |
8.0 |
|
| Characteristics of Optical Cable |
1. Min. bending radius
Static: 10 x cable diameter
Dynamic: 20 x cable diameter
2. Application temperature range
Operation: – 20C ~ +70C
Installation: -10C ~ +60C
Storage/transportation: – 20C ~ +70C
3. Main mechanical & environmental performance test
|
Item |
Test Method |
Acceptance Condition |
|
Tensile Strength IEC 60794-1-2-E1 |
– Load: Short term tension – Length of cable: ≥ 50m – Load time: 30min |
– Loss change ≤ 0.1dB@1550nm after test. – No fiber break and no sheath damage. |
|
Crush Test IEC 60794-1-2-E3 |
– Load: Short term crush – Load time: 5min |
– Loss change ≤ 0.1dB@1550nm after test. – No fiber break and no sheath damage. |
|
Impact Test IEC 60794-1-2-E4 |
– Points of impact: 3 – Times of per point: 1 – Impact energy:1J – Striking surface:300mm |
– Loss change ≤ 0.1dB@1550nm after test. – No fiber break and no sheath damage. |
|
Torsion IEC 60794-1-2-E7 |
– Length: 1m – Twist angle: ±180° – No. of cycle: 10 |
– Loss change ≤ 0.1dB@1550nm after test. – No fiber break and no sheath damage. |
|
Repeated Bending IEC 60794-1-2-E6 |
– Bending radius: 20 x OD – No. of cycle: 25 – Load: 20N |
– No fiber break and no sheath damage. |
|
Temperature Cycling IEC 60794-1-2-F1 |
– Temperature: -20C~+70C – Time of each step: 8h – Number of cycle: 2 |
– Loss change ≤ 0.5dB@1550nm. – No fiber break and no sheath damage. |
|
Flame resistance |
–IEC 60332-1 |
|
| Packing |
2Km/Roll/Box
Size: 39.5*31.5*39.5cm Weight: 21.5KG
