Industrial Cable Manufacturer

Description of GJFJH fiber, dual core figure 8 optical cable

This product uses a single Ф900μm or Ф600μm flame retardant tight buffered optical cable as the optical transmission medium. The aramid yarn layer serves as the strength member on the exterior, then finally, an extruded buffer layer of PVC, LSZH, Hytrel, TPU, ETFE and other different materials are used as the sheathe.

Application Duplex optical fiber jumper wire or pigtail wire Indoor vertical shaft or forced ventilation wiring Instruments and telecommunication equipment interconnection Parameter Technical parameter

Item	Content	Value
	Number of cores	2
Tight-buffered optical fiber	Material	LSZH
	Outer diameter/mm	(0.6/0.9)±0.05
	quantity	2
Strength member	Material	Aramid yarn
Outer sheath	Thickness/mm	≥0.3	≥0.4
Outer diameter	mm	(2.0*4.1)±0.1	(3.0*6.1)±0.1
Operating temperature	℃	-20~+60
Tensile force	Short term/long termN	150/80	150/80
Flatten	Short term/long termN	500/100
*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 60794-1-2-E1	According to technical parameter	Residual additional attenuation≤0.03dB
Flatten	IEC 60794-1-2-E3	According to technical parameter	Additional attenuation for long term≤0.03dB
Impact	IEC 60794-1-2-E4	Impact: 1N, height: 1m, 3 points at least	The optical fiber will not be broken off.
Backward and forward bending	IEC 60794-1-2-E6	Load: 20N 200times	Residual additional attenuation≤0.03dB
Temperature recycle test	IEC 60794-1-2-F1	-20℃ ~+60℃	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 changes is operated in wavelength of 1550nm.

Features
The tight buffered optical fiber is easy to strip, and it features an excellent flame retardant performance. The aramid yarn layer serves as the strength member, giving the optical cable an excellent tensile property. The product uses a Figure 8 loose tube that makes it easy to use individually. This product is corrosion resistant, waterproof, ultra-violet resistant, flame retardant and environmentally friendly.