ETIC AFO485, Руководство пользователя, Страница: 22 / 36

Page 22 USER MANUAL ref 9011509-01 AFO485 and RFO485
3.8. Fibre optic range
3.8.1 Range between repeaters in a bus network
The maximum distance between repeaters is dependant on the product
and the type of fibre optic used; It is the same as that of a point to point
link using the same fibre optic.
Range between 2 repeaters using multimode fibre G50/125
Bus Network
Optical
Source Optical
power*
Reserve F.0.
attenuation
Min. range
dB dB dB/Km Km
Product Reference A B C D1 = (A-B) / C
AFO485-10
820 nm 12 3 2,5 3,5
AFO485-20 1300 nm 12 3 1 9
Range between 2 repeaters using multimode fibre G62.5/125
Bus network
Optical
Source Optical
power*
Reserve F.0.
attenuation
Min. range
dB dB dB/Km Km
Product Reference
A B C D1 = (A-B) / C
AFO485-10
820 nm 15 3
3,5
3,5
AFO485-20
1300 nm 15 3
1,5
8
Range between 2 repeaters using single mode fibre E10/125
Bus Network
Optical
source
Optical
power*
Reserve F.0.
attenuation
Min. range
dB dB dB/Km Km
Product Reference A B C D1 = (A-B) / C
AFO485-30
1300 nm 17 3
0,5
28
AFO485-40
1300 nm 10 3
0,5
14
*
Minimum guaranteed power of the optical source at 25°C.