Oriental Fiber Manufacturer

Make Fiber Cable Procurement Easy and Cost-effective

FAQ on Cable Identification of Fiber Optic Cable

Fiber color code

 No.123456
ColorBlueOrangeGreenBrownGrayWhite
No.789101112
ColorRedBlackYellowVioletPinkAqua

Loose tube (LT) & filler rod (FR) color code

FibercountElement no.
123456789101112
4LTFRFRFRFR       
6LTFRFRFRFR       
8LTLTFRFRFR       
12LTLTFRFRFR       
24LTLTLTLTFR       
48LTLTLTLTFR       
72LTLTLTLTLTLT      
96LTLTLTLTLTLTLTLT    
144LTLTLTLTLTLTLTLTLTLTLTLT
  • * “LT” means “Loose Tube”;
  • ** “FR” means “Filler Rod”.

Cable Assembly & Dimensions

ItemContentsValue
4/6/8/12/24487296144
Loose tubeNumber1/1/2/2/446812
Outer diameter (mm)1.82.02.02.02.0
Thickness(mm)0.3
MaterialPBT
Water blockingTube filling compound
FillerMaterialPP
Number4/4/3/3/11000
Max. Fiber counts per tubeG.652D612121212
Central strength memberMaterialSteel wire
Diameter (mm)1.41.552.12.02.0
PE layer diameter (mm)3.56.1
Water blockingMaterialWater blocking jelly
SheathMaterialHDPE
ColorBlack
Thickness (mm)1.6
Cable diameter(mm) Approx9.09.610.111.514.1
Cable weight(kg/km) Approx.8090110135185

Performance of Cabled Optical Fiber

The performance of cabled optical fiber (ITU-T Rec. G.652D)

ItemSpecification
Fiber typeSingle mode
Fiber materialDoped silica
Attenuation coefficient@ 1310 nm@ 1550 nm £ 0.36 dB/km£ 0.22 dB/km
Cable cut-off wavelength£ 1260 nm
Zero-dispersion wavelength1300 ~ 1324 nm
Zero-dispersion slope£ 0.092 ps/(nm2.km)
Chromatic dispersion@ 1288 ~ 1339 nm@ 1271 ~ 1360 nm@ 1550 nm@ 1625 nm £3.5 ps/(nm. km)£5.3 ps/(nm. km)£18 ps/(nm. km)£22 ps/(nm. km)
PMD£0.2 ps/km1/2
Mode field diameter @ 1310 nm9.2±0.4 um
Core / Clad concentricity error£ 0.6 um
Cladding diameter125.0 ± 0.7 um
Cladding non-circularity£1%
Primary coating diameter245 ± 5 um

Performance of Optical Fiber Cable

Cable bending radius:

  • 10 x cable diameter (static)
  • 20 x cable diameter (dynamic)

Application temperature range

Operating temperature range: -40oC to +70oC
Storage / Transport temperature range: -40oC to +70oC
Installation temperature range: -20oC to +60oC

Mechanical & environmental performance test

S/NItemTest MethodAcceptance Condition
1Tensile StrengthIEC 794-1-E1– Load: 1.5KN- Length of cable under load: 50 m- load time: ≥1min.– Loss change £ 0.1 dB/km@1550 nm -No damage to outer jacket and inner elements.
2Crush TestIEC 794-1-E3– Load:1.0KN/100mm*100mm- Load time: ≥1min.– Loss change £ 0.1 dB/km@1550 nm -No damage to outer jacket and inner elements.
3Impact ResistanceIEC 794-1-E4– Points of impact: 5-Times of per point: 1- Impact energy:4.5N.m- Radius of hammer head: 12.5mm- Impact rate: 2 sec/cycle– Loss change £ 0.1 dB/km@1550 nm -No damage to outer jacket and inner elements.
4Repeated BendingIEC 794-1-E6– Bending radius: 20 x cable diameter- Load: 150 N- Flexing rate: 3 sec/cycle- No. of cycle: 30– Loss change £ 0.1 dB/km@1550 nm -No damage to outer jacket and inner elements.
5TorsionIEC 794-1-E7– Length: 1 m- Load: 150 N- Twist rate: 1 min/cycle- Twist angle: ±180°- No. of cycle: 10– Loss change £ 0.1 dB/km@1550 nm -No damage to outer jacket and inner elements.
6Water Penetration TestIEC 794-1-F5B– Height of water: 1 m- Sample length: 3 m- Test time: 24 hours– No water shall have leaked from the opposite end of cable.
7Temperature Cycling TestIEC 794-1-F1– Temperature step:+20oC→-40oC→+70C →+20oC- Time per each step: 24 hours- Number of cycle: 2– Loss change £ 0.1 dB/km@1550 nm- No fiber break and no sheath damage.
8Compound FlowIEC 794-1-E14– Sample length: 30 cm- Temp: 70°C ± 2°C- Time: 24 hours– No compound flow

Packaging

  • Each single cable length been wound on an iron stand-wooden composite or pure wooden drum.
  • Standard drum length is 4000m with ±2%.
  • Covered by plastic buffer sheet.
  • Sealed by strong wooden battens.
  • At least 3m of cable inner end should be reserved for testing.