Industrial Cable Manufacturer

Structure


Tight-buffered optical fiber
Inner sheath
Strength member: aramid yarn
Filler yarn: thermoplastic material
Outer sheath: polyurethane (TPU)

Description of Optical Fiber Cable for Telecommunication Base Station

In base station signal transmission systems, the optical cable between Building Base Band Unite (BBU) and Radio Remote Unit (RRU) is called an optical fiber cable for telecommunication base stations. The optical cable that is used to transmit signal for RRU is an optical fiber cable for RRU.

This optical fiber cable has a smaller outer diameter, and it is soft, flexible and space saving. It features outstanding mechanical properties and is suitable for use in a variety of environments, and is most often used in 3G/4G long distance telecommunication base stations.

Application
This optical fiber is primarily used as a communication method between BBU and RRU.
Optical communication room, optical connection of optical distribution frame
Long distance base station system
Parameter Technical parameter

Item	Content	Typical value
	Number of cores	2	8	12	24
Tight-buffered optical fiber	Material	LSZH
	Outer diameter/mm	(0.6/0.9)±0.05
optical unit	Outer diameter/mm	2.0±0.1
	Thickness/mm	≥0.3
Strength member	Material	Aramid yarn
Filler yarn	Material	thermoplastic material
Outer strength member	Material	Aramid yarn
Outer sheath	Material	LSZH/PVC/TPU/PE
Outer diameter	mm	3.5/5.5/7.0	14.0	20.	23.5
Operating temperature	℃	-40~+70
Tensile force	Short term/long termN	1000/500
Flatten	Short term/long termN	2200/1100
*We can design the structure of optical cable according to customer requirements.

Characteristic of optical fiber

		G.652.D	G.657A2	50/125μm	62.5/125μm
Attenuation	@850nm	-	-	≤3.0dB/km	≤3.0dB/km
	@1300nm	-	-	≤1.0dB/km	≤1.0dB/km
	@1310nm	≤0.36dB/km	≤0.36dB/km	-	-
	@1550nm	≤0.22dB/km	≤0.23dB/km	-	-
Bandwidth	@850nm	-	-	≥500MHz·km	≥200MHz·km
	@1300nm	-	-	≥1000MHz·km	≥600MHz·km
Fiber cutoff wavelength		≤1260nm	≤1260nm	-	-
Polarization mode dispersion	Single optical fiber	≤0.20ps/√km	≤0.20ps/√km	-	-
Link value (M=20, Q=0.01%)			≤0.10ps/√km	-	-

Main machinery and environment performance

Item	Inspection standard	Procedure of inspection	Requirements
Pull	IEC 60811-1-1	According to technical parameter	Additional attenuation≤0.03dB
Flatten	IEC 60811-1-1	According to technical parameter	Additional attenuation≤0.03dB
Backward and forward bending	IEC 60811-1-1	Load: 20N 200 times	Additional attenuation: single-mode≤0.4dB; multi-mode≤0.6dB
Twisting	IEC 60811-1-1	Load: 40N 10 times	Additional attenuation: single-mode≤0.4dB; multi-mode≤0.6dB
Temperature recycle test	IEC 60794-1-2-F1	-40℃ ~+70℃	Additional attenuation: single-mode≤0.5dB; multi-mode≤0.3dB
Combustion performance	IEC 60332-1-2	Fire resistance	Every single wire can be burnt vertically.
		Density of the smoke	Light transmittance ≥50%
		Corrosiveness	PH of the gas when burning≤4.3, electric conductivity≤10μs/mm
* The monitoring of all optical fiber attenuation's change is operated in wavelength of 1550nm.

Characteristic and application
This product features a composite structure that makes use of a special coating layer and a secondary coating in order to absorb machinery and environmental stress. This ensures there is very little additional loss in the optical cable. The dry core cable structure makes it easy and convenient to connect and install, and it can be branched halfway. The all-dielectric structure protects the optical fiber from electromagnetic interference. This optical cable is suitable for cabling in optical communication rooms, optical connection of optical distribution frames and some harsh environments.