1、Structure
   single fiber,double fiber,four fiber,six fiber and muti-fiber ctc.

2、Applications
   Apply to transnaision equipment telephone data processing equipment and communication,and it's optical transmission wire in transmission network.

3、Cable cross-section

PDR Chromatogram

• Outer Sheath
  Orang——Muti Mode Optical Fiber
  Yellow——Mode Optical Fiber
• lnner Sheath
  Orang——Muti Mode Optical Fiber
  Yellow——Single Mode Optical Fiber
• Muti-cable
  Outer Coating——Orange

4、Cable specifications
Attenuation coefficient and bandwidth level

Attenuation coefficient

Fiber type	B1.1		B1.2	B2
Operating wavelength	1310	1550	1550	1550
Attenuation level(max.)	0.36 0.40 0.45	0.23 0.25 0.30	0.19 0.22	0.23 0.25 0.30

Characteristic available only at 850nm wavelength

Fiber type	Ala	Alb	Alc
Attenuation level(max.)	3.0 3.5	3.0 3.5	4.0
Bandwidth level(min.)	200 500 800 1000	150 200 500	100 200

Characteristic only at 1300nm wavelength

Fiber type	Ala	Alb	Alc
Attenuation level(max.)	0.8 1.0 1.5	0.8 1.0 1.5 2.0	2.0
Bandwidth level(min.)	200 500 800 1000 1200 1500	300 500 1000	100 200 500 1000

Characteristic for both wavelength area at 850nm and 1300nm

Fiber type	Ala		Alb		Alc
Transmission wave	850	1300	850	1300	850	1300
Attenuation level(max.)	2.4 2.5 2.7	0.6 0.8 1.0	3.0 3.2 3.5	0.7 0.9 1.5	3.0 3.0 3.5	0.7 1.0 1.5
Bandwidth level(min.)	200 200 400 400 400 400 400 400 600	200 600 400 600 800 1000 1200 1500 1000	400 160 200 200 200 250 300	160 500 200 400 600 1000 800	100 200 200	300 200 300