
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.
Содержание AFO485
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