ETIC AFO485, Руководство пользователя, Страница: 28 / 36

Page 28 USER MANUAL ref 9011509-01 AFO485 and RFO485
4.7. Range of modems on the CAN network
Taking into account the technology of the CAN network, only a point to
point transmission can be realised.
The range of the optical link is determined in two steps :
Step 1 : The length of the link can not exceed the values below, it is
related to the type of fibre optic and the optical source of the AFO485
adaptor.
Range on multimode fibre G50/125
Optical
Source Optical
power*
Reserve F.0.
attenuation
Min. range
DB dB dB/Km Km
Product reference A B C D1 = (A-B) / C
AFO485-C10 820 nm 12 3 2,5 3,5
AFO485-C20
1300 nm 12 3 1 9
Range on multimode fibre G62.5/125
Optical
Source Optical
power*
Reserve F.0.
attenuation
Min. range
dB dB dB/Km Km
Product reference A B C D1 = (A-B) / C
AFO485-C10
820 nm 15 3
3,5
3,5
AFO485-C20
1300 nm 15 3
1,5
8
Range on single mode fibre E10/125
Optical
Source Optical
power*
Reserve F.0.
attenuation
Min. range
dB dB dB/Km Km
Product reference A B C D1 = (A-B) / C
AFO485-C30
1300 nm 17 3
0,5
28
AFO485-C40
1300 nm 10 3
0,5
14
*Minimum power of the optical source at 25°C.