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Central Tube Fiber Cable Outdoor Fiber Optic Cable

Brand Name : TC

Model Number : GYXTW

Certification : UL, RoSH, REACH, CE

Place of Origin : China

Application : Outdoor

Fiber Type : Singlemode/Multimode

Fiber No. : Customized

Jacket material : PE

Standard : YD/T 769; IEC 60793; ISO/IEC11801

Loose Tube : PBT

Strength Member : Phosphatized steel wire

Steel-Plastic Composite Belt : PSP/EGE

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Central Tube Fiber Optic Cable Single Mode/Multimode Outdoor Fiber Optic Cable Application

Optical Fiber Central Tube Cable is mainly used for outdoor fiber connection along with building backbone application networks and link bridges.

Inside the central tube cable, 250µm (single-mode or multimode) fibers are positioned in loose tubes made of high modulus polyester material.

The tubes, filled with water-resistant compounds, are wrapped double chromium-plated PSP armor. Between the armor and the tubes, water-blocking material is applied to keep the cable watertight. Two parallel steel wires are placed at the two sides of the cable core and then a polyethylene (PE) jacket is extruded over it.

Product Features

Central tube structure is designed for excellent mechanical performance and temperature performance;
The loose tube material has good resistance to hydrolysis performance and high strength;
The cable has 62.5/125 singlemode/multimode, 50/125 multimode, 2-24 cores, and many other specifications available;
It provides a high crush resistance coupled with excellent bending performance and flexibility so as to avoid the impact from the outside environments;
Its PSP armor improves moisture resistance;
The two parallel steel wires ensures the cable's tensile strength;
The cable meets the industry-regulated requirements of optical transmission, mechanical protection and flammability.

Application Standards

YD/T 769; IEC 60793; ISO/IEC11801

Color Code	1	2	3	4	5	6	7	8	9	10	11	12
Color Code	Blue	Orange	Green	Brown	Slate	White	Red	Black	Yellow	Violet	Rose	Aqua

Color Code (2-24 core)	1	2	3	4	5	6	7	8	9	10	11	12
	Blue	Orange	Green	Brown	Slate	White	Red	Black	Yellow	Violet	Rose	Aqua
	13	14	15	16	17	18	19	20	21	22	23	24
	Blue + Color Ring	Orange + Color Ring	Green + Color Ring	Brown + Color Ring	Slate + Color Ring	White + Color Ring	Red + Color Ring	Black + Color Ring	Yellow + Color Ring	Violet + Color Ring	Rose + Color Ring	Aqua + Color Ring

Flame
resistance

Flammability standard for single wire:

GB/T 18380.12-
2008

Flammability standard for bunched wires:

GB/T 18380.35-
2008

Jacket: Peel off 50mm-long cable, place the empty jacket horizontally and burn for 4-5 seconds, using alcohol lamp; after the fire source is taken away, it extinguishes less than 2 seconds;
Aramid yarn: it is burnt into powder and extinguishes right after the fire source is taken away

Technical Details

Optical Properties
Type of Optical Fiber	Attenuation		Injection Bandwidth (OFL)	Effective Modal Bandwidth	10 Ethernet Link Length SX	Min. Bend Radius (mm)
	1310nm/1550nm		850/1300nm	850nm	850nm
	Typical Value (dB/km)	Max. Value (dB/km)	MHz·km	MHz·km
SM 9/125	0.36/0.22	0.4/0.3	/	/	/	16
	850nm/1300nm
	Typical Value (dB/km)	Max. Value (dB/km)
MM62.5/125 OM1	3.0/1.0	3.5/1.5	≥ 200/500	/	/	30
MM50/125 OM2	3.0/1.0	3.5/1.5	≥ 500/500	/	≥ 150	30
MM50/125 OM3	3.0/1.0	3.5/1.5	≥ 1500/500	≥ 2000	≥ 300	30
MM50/125 OM4	3.0/1.0	3.5/1.5	≥ 3500/500	≥ 4700	≥ 550	30

Structure Specifications
Name	Material	Parameter	Configuration (2-12 core)	Configuration (13-24 core)
Loose Tube	PBT	Outer diameter	2.5±0.1mm	3.0±0.1mm
Loose Tube	PBT	Thickness	0.40±0.05 mm	0.45±0.05 mm
Strength Member	Phosphatized steel wire	Diameter	1.0mm*2	1.0mm*2
Steel-Plastic Composite Belt	PSP/EGE	Thickness	0.205mm	0.205mm
Steel Wire Outer Jacket	GYXTW: PE GYXTZW: LSZH	Min. distance between outer jacket and steel wire	≥0.8mm	≥0.8mm
Fiber Optic Outer Jacket	GYXTW:PE GYXTZW:LSZH	Outer diameter	∮7.3±0.3mm	∮7.8±0.3mm
Temperature Range for Outer Jacket	-40℃~+60℃	Additional attenuation at 20℃		≤0.1

Mechanical Properties
No.	Name	Requirements
1	Allowed Tensile Strength, N	Short Term	1500
		Long Term	600
2	Allowed Crush Resistance, N/100mm	Short Term	1000
		Long Term	300
3	Bend Radius, mm	Static	10D
		Dynamic	20D
4	Water Permeability	In accordance with YD/T 769-2018

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