1.2 Cable Description 1 Single-Unit, Distribution Cable 2~12 Fibers Tight buffered fiber, dielectric strength member and PVC / LSZH Low Smoke Zero Halogen jacket 2 Multi-Unit, Distributi
Trang 1TECHNICAL SPECIFICATION
FOR
TIGHT-BUFFER/DISTRIBUTION CABLES
FLAME-RETARDANT / LOW SMOKE ZERO HALOGEN
USED FOR INDOOR/OUTDOOR APPLICATION
(Based on GR 409 CORE) 5XXXLZHIOCCC/20
XXX – Core Count CCC – Fiber Type, 010 = 9/125, 050 = 50/125, 062 = 62.5/125
Trang 21 SCOPE
1.1 Application
This specification covers the general requirements for fiber optic telecommunication cables used for indoor/outdoor application
1.2 Cable Description
1) Single-Unit, Distribution Cable (2~12 Fibers)
Tight buffered fiber, dielectric strength member and PVC / LSZH (Low Smoke Zero Halogen) jacket
2) Multi-Unit, Distribution Cable (18~144 Fibers)
Tight buffered sub-unit cables, dielectric central strength member (CSM), PVC / LSZH (Low Smoke Zero Halogen) jacket
2 OPTICAL FIBER
The optical, geometrical and mechanical performance of the optical fiber shall be in accordance with Table 1 and Table 2 below
Table 1 The Optical, Geometrical and Mechanical Performance of the Multi Mode Fiber
SPECIFICATION ITEMS UNITS
50 Multi Mode 62.5 Multi Mode
≤ 1.1 at 1300nm
≤ 3.5 at 850nm
≤ 1.2 at 1300nm
≥ 600 at 1300nm
≥ 200 at 850nm
≥ 500 at 1300nm Numerical Aperture - 0.20±0.015 0.275±0.015
Core/Cladding
Trang 3Table 2 The Optical, Geometrical and Mechanical Performance of the Single Mode Fiber
Typical Attenuation dB/km ≤ 0.50 at 1310nm
≤ 0.40 at 1550nm Maximum Attenuation dB/km ≤ 0.75 at 1310nm
≤ 0.75 at 1550nm Chromatic Dispersion ps/nm.km ≤ 3.2 at 1285nm ~ 1330nm
≤ 18 at 1550nm Zero Dispersion Wavelength nm 1300 ~ 1324
Zero Dispersion Slope ps/nm2.km ≤ 0.093
Cut-off Wavelength
(λ cc, 22m of a cabled fiber) nm ≤ 1270
3 CABLE CONSTRUCTION
The construction of the cable shall be in accordance with Table 3 and Table 4 below
3.1 Single-unit Cable
Table 3 Construction of the Single-unit Cable
ITEMS DESCRIPTION
Number of Fibers 2 ~ 12
Type of Fiber Single Mode, 62.5 Multi Mode, 50 Multi Mode
Tight Buffer Coating Material: PVC Outer diameter: 900±50 ㎛
Dielectric Strength Member Aramid Yarn
(For 6 ~ 12 fiber cable) Outer Jacket Material : PVC or LSZH Compound
Trang 43.2 Multi-unit Cable
Table 4 Construction of the Multi-unit Cable
ITEMS DESCRIPTION
Number of Fibers 18 ~ 144
Type of Fiber Single Mode, 62.5 Multi Mode, 50 Multi Mode
Tight Buffer Coating Material: PVC Outer diameter: 900±50 ㎛
No of the Tight Buffered Fiber
6: For 18~24 Fiber Cable
12 : For 36~144 Fiber Cable Dielectric
Strength Member Aramid Yarn Sub-unit
Sub-unit Jacket PVC or LSZH Compound Dielectric CSM FRP (Fiberglass Reinforced Plastic) with PVC or LSZH Coating
Outer Jacket Material : PVC or LSZH Compound
4 IDENTIFICATION
4.1 The Color Code of the tight buffer coating
Table 5 The Color Code of the Tight Buffer Coating
1 Blue 7 Red
2 Orange 8 Black
3 Green 9 Yellow
4 Brown 10 Violet
5 Grey 11 Pink
6 White 12 Aqua
4.2 The Color of the sub-unit jacket
Unless otherwise requested by the customer, all single mode sub-unit jackets are yellow, all
50 Multi Mode and 62.5 Multi Mode sub-unit jackets are orange
The identification code & number is printed on the sub-unit jacket repeatedly
(every 10 cm)
Trang 54.3 Outer jacket color
Unless otherwise requested by the customer, all single mode outer cable jackets are yellow,
all 50 Multi Mode and 62.5 Multi Mode outer cable jackets are orange
If the optical fiber cable will be used outside, the outer cable jacket will be black
5 PHYSICAL / MECHANICAL / ENVIRONMENTALPERFORMANCE
5.1 Temperature Range
For the cables covered by this specification, the following temperature ranges apply:
1) Riser Cable
- Storage/Shipping temperature range : -40 to 65℃
- Installation temperature range : -20 to 50℃
- Operating temperature range : -20 to 50℃
2) Plenum and General Purpose Cable
- Storage/Shipping temperature range : -40 to 65℃
- Installation temperature range : 0 to 50℃
- Operating temperature range : 0 to 50℃
5.2 Mechanical and Environmental Performance of the Cable
The mechanical and environmental performance of the cable shall be in accordance with Table 6 below Unless otherwise specified, all attenuation measurements required in this section shall be performed and at 1550nm for single mode fiber
Trang 6Table 6 The Mechanical and Environmental Performance of the Cable
ACCEPTANCE CRITERIA
Tensile Loading
and Bending Test
# Test method: TIA/EIA-455-33A - Mandrel diameter: 30D (D = cable diameter) - Short term tensile load:
2~12 Fiber cable : 660N for 30 minutes
18 ~144 Fiber cable :1320N for 30 minutes - Long term tensile load : 25% tensile load for 10 minutes
# Acceptance Criteria - Fiber strain: Less than 60% of the fiber proof strain
for short term tensile load - Attenuation increment: ≤ 0.30 dB at 1300nm (MM) ≤ 0.20 dB at 1550nm (SM) for long term tensile load
Table 6 The Mechanical and Environmental Performance of the Cable (continued)
ACCEPTANCE CRITERIA
Compressive Loading
Resistance Test
# Test method: TIA/EIA-455-41A - Applied load: 500 N/10cm for 2~12 Fiber cable
1000 N/10cm for 18~144 Fiber cable - Duration of loading: 10 minutes
# Acceptance Criteria - Attenuation increment: ≤ 0.30 dB at 1300nm (MM) ≤ 0.20 dB at 1550nm (SM)
Repeated Impact Test
# Test method: TIA/EIA-455-25B - Height of impact: 150mm - Drop hammer mass: 0.5kg for 2~12 Fiber cable 2kg for 16~144 Fiber cable - No of impact cycles: 20 cycles
# Acceptance Criteria - Attenuation Increment: ≤ 0.30 dB at 1300nm (MM) ≤ 0.20 dB at 1550nm (SM) - No jacket cracking and fiber breakage
Trang 7Cyclic Flexing Test
# Test method: TIA/EIA-455-104A - Sheave diameter: 20D (D = cable diameter) - No of flexing cycles: 25 cycles
- Flexing speed: 30 cycles/minute
# Acceptance Criteria - Attenuation Increment: ≤ 0.30 dB at 1300nm (MM) ≤ 0.20 dB at 1550nm (SM) - No jacket cracking and fiber breakage
Cable Twist Test
# Test method: TIA/EIA-455-85A - Cable length twisted: 2m - No of twist cycles: 10 cycles - Twist angle: ±180˚
# Acceptance Criteria - Attenuation Increment: ≤ 0.30 dB at 1300nm (MM) ≤ 0.20 dB at 1550nm (SM) - No jacket cracking and fiber breakage
Temperature Cycling Test
# Test method: TIA/EIA-455-3A - Temperature cycling schedule Riser Cable:25℃→ -20℃→ 50℃→ -20℃→ 50℃→ 25℃ Plenum, General Purpose Cable: 25℃→ 0℃→ 50℃→ 0℃→ 50℃→ 25℃
- Soak time at each temperature: 24hours
# Acceptance Criteria -.Attenuation Increment:≤ 0.50dB/km at 1300nm (MM) ≤ 0.30dB/km at 1550nm (SM)
Flammability Test
# General Purpose Cable: The cable shall comply with UL-1581, IEEE 383,IEC 332-1
# Riser Cable: The cable shall comply with UL-1666, IEEE 383,IEC 332-3 Category C
# Plenum Cable: PVC Sheath Cable only
The cable shall comply with UL-910, IEEE 383, IEC 332-3
Trang 86 PACKING AND MARKING
6.1 Cable Marking
The jacket shall be marked at intervals of one meter with following information
1) Length marking
2) KRONE
3) Cable type
4) Fiber type & counts
5) UL Marking
6) Year of manufacture
6.2 Cable Packing
6.2.1 Standard length of cable shall be 1km Other cable length is also available if required by customer
6.2.2 Each length of the cable shall be wound on a separate wooden reel or plywood reel
6.2.3 Both ends of the cable shall be sealed with a suitable plastic cap or a suitable plastic tape to prevent the entry of moisture during shipping, handling and storage
6.2.4 Wood-fiber board or circumference battens shall be laid on cable between flanges and fixed
by steel bands
6.2.5 The cable ends shall be securely fastened to the reel to prevent the cable from becoming loose in transit or during placing operations
6.3 Cable Reel
6.3.1 The sticker information on the spool
(1) Length of cable in meters
(2) Cable type and fiber counts
(3) Gross weight in kilograms
(4) KRONE
(5) Year of manufacture
6.3.2 Details given below shall be distinctly marked on a weather proof materials on both outer sides of the reel flange:
(1) Reel number
(2) Arrow showing the direction the drum shall be rolled
6.3.3 The cable shall be wound on the reel designed to prevent damages during shipment and installation
Trang 9< Cross-sectional Drawing of Cable >
1 Distribution Cable 12 core
PVC or LSZH Jacket
PVC Tight Buffer Coating Optical Fiber (Outer Diameter after PUA coating : 245 ㎛)
Aramid Yarn
Ripcord (Aramid yarn)
2 Single Mode Distribution Cable 24 core
Optical Fiber (Outer Diameter after PUA coating : 245 ㎛)
PVC Tight Buffer Coating Binder yarn
PVC sub-unit Jacket Central Strength Member) Ripcord (Aramid yarn) PVC / LSZH Jacket
SM #2
SM #3
Aramid Yarn
SM #4
SM #1
== End of Specification ==