| Cable Cross-section |
| Cable Specification |
1. Introduction
Flat optical cable uses several fibers as optical communication medium. Widely used in Metro ODN network especially inside buildings which have multi-floors and room and two parallel fiber reinforced plastics (FRP) are its strength member. The cable is completed with a PE jacket.
2. Fiber color code
|
No. |
1 |
2 |
3 |
4 |
5 |
6 |
|
Color |
Blue |
Orange |
Green |
Brown |
Gray |
White |
|
No. |
7 |
8 |
9 |
10 |
11 |
12 |
|
Color |
Red |
Black |
Yellow |
Violet |
Pink |
Aqua |
3. Optical fiber type and properties
|
Item |
Unit |
Specification |
|
|
G. 652D |
|||
|
Mode field diameter |
1310nm |
mm |
9.2 ± 0.4 |
|
1550nm |
mm |
10.4 ± 0.5 |
|
|
Cladding diameter |
mm |
124.3~125.0 |
|
|
Cladding non-circularity |
% |
£1.0 |
|
|
Core concentricity error |
mm |
£0.5 |
|
|
Coating diameter |
mm |
245 ± 5 |
|
|
Coating/cladding concentricity error |
mm |
£10 |
|
|
Cable cut-off wavelength |
nm |
£ 1260 |
|
|
Attenuation Coefficient |
1310nm |
dB/km |
£0.35 |
|
1550nm |
dB/km |
£0.21 |
|
|
Proof stress level |
kpsi |
100 |
|
Other parameters meet standard ITU-T G.652
|
Item |
Unit |
Specification |
|
|
G. 657A1 |
|||
|
Mode field diameter |
1310nm |
m |
9.2 ± 0.4 |
|
1550nm |
m |
10.4 ± 0.5 |
|
|
Cladding diameter |
m |
124.3~125.0 |
|
|
Cladding non-circularity |
% |
1.0 |
|
|
Core concentricity error |
m |
0.5 |
|
|
Coating diameter |
m |
245 ± 5 |
|
|
Coating/cladding concentricity error |
m |
10 |
|
|
Cable cut-off wavelength |
nm |
1260 |
|
|
Attenuation Coefficient |
1310nm |
dB/km |
0.35 |
|
1550nm |
dB/km |
0.21 |
|
|
Macro-bend loss (1 turn, 10mm radius) |
1550nm |
dB |
0.75 |
|
1625nm |
dB |
1.5 |
|
|
Proof stress level |
kpsi |
100 |
|
Other parameters meet standard ITU-T G.657
4. Cable structure and parameter
|
Item |
Contents |
Unit |
Value |
|
Optical Fiber |
/ |
/ |
4-12 |
|
Strength member |
Material |
/ |
FRP (*2) |
|
Diameter |
mm |
1.6 |
|
|
Inner jacket |
Diameter |
mm |
3.0±0.1 |
|
Material |
/ |
PBT |
|
|
Filler |
/ |
Jelly |
|
|
Color |
/ |
Natural |
|
|
Outer jacket |
Diameter |
mm |
8.1(±0.4)×4.5（±0.3) |
|
Material |
/ |
PE |
|
|
Color |
/ |
Black |
|
|
Tensile performance |
Short term |
N |
1350 |
|
Long term |
N |
400 |
|
|
Crush |
Short term |
N/100mm |
2000 |
|
Long term |
N/100mm |
1000 |
|
|
Cable attenuation |
dB/km |
SM: ≦ 0.4 at 1310nm, ≦ 0.3 at 1550nm |
|
|
Cable weight (Approx.) |
kg/km |
38 |
|
| Characteristics of Optical Cable |
1. Min. bending radius
Static: 20 x Cable height
Dynamic: 40 x Cable height
2. Application temperature range
Operation: – 40℃ ~ +70℃
Installation: -30℃ ~ +70℃
Storage/transportation: – 40℃ ~ +70℃
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: 5min |
– Fiber strain £ 0.6% – Loss change £ 0.1dB@1550nm after test. – No fiber break and no sheath damage. |
|
– Load: Long term tension – Length of cable: ≥ 50m – Load time: 5min |
– Fiber strain £ 0.2% – 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: 1min |
– Loss change £ 0.1dB@1550nm after test. – No fiber break and no sheath damage. |
|
– Load: Long term crush – Load time: 10min |
– 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 |
– 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: 100 – Load: 20N |
– 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 – Load: 20N |
– Loss change £ 0.1dB@1550nm after test. – No fiber break and no sheath damage. |
|
Kink IEC 60794-1-2-E10 |
– Loop diameter:20 x OD |
– No kink occurs. |
|
Temperature Cycling IEC 60794-1-2-F1 |
– Temperature: -40℃~+70℃ – Time of each step: 8h – Number of cycle: 2 |
– Loss change £ 0.5dB@1550nm. – No fiber break and no sheath damage. |
|
Water penetration |
-Time:24h -H:1m -L:＜3m |
-No water leakage |
| Packing |
Optional 2Km 3Km 4Km 5Km
