Westermo ODW-710-F2 - Manual (Page 18)

18 6651-2211
If an optical fibre segment fails, all communication with units beyond the faulty fibre
segment will be lost. To determine witch fibre segment has failed, look at the
FL L, CH 1 and CH 2 LED’s as show in the picture above.
Behavior during optical link failure
RX2
TX2
End Unit
S2: 2 ON
FL R LED
is on FL L LED
is on CH 1 LED
is off
Faulty
segment
PROFIBUS
Master
TX1
RX1
RX2
TX2
End Unit
S2: 2 ON
TX1
RX1
RX2
TX2
TX1
RX1
RX2
TX2
TX1
RX1
PROFIBUS
Slave
PROFIBUS
Slave
PROFIBUS
Slave
FL R LED
is on FL L LED
is on CH 2 LED
is off