Raisecom RC802-240B User Manual - Chapter 2 Instruction
Chapter 2 Instruction
2.1 Introduction of front panel
PWR
L
R
LO
S
1
2
3
4
MASK
LOS
LOF
TX
RX
5
6
7
8
E-3
E-6
RS232
The top fixed spanner
Power indicator(Green):On,
built-in power working in good condition
The row (L) indicates “local”
The row below indicates “Remote”
E1 LOS alarm(red): receiving signal of E1 channel is loss,it turns red
Optical alarm:
LOS alarm (red): when receiving signal is loss, it turns red
LOF alarm (red):
When optical receiving frames lose synchronization, the
alarm indicator turns on.
E-3 serious error bit alarm exceeds 10
-3
(red): it is flashing.
E-6 serious error bit alarm exceeds 10
-6
(yellow): it turns yellow
Optical interface:
For dual-strand device,optical interface is
DSC/PC. TX means sending,RX means receiving.
Auxiliary channel: asyc RS232,rate 0~64Kbps
Mask/ No mask:
“ON”: Mask unused E1' s alarm; “OFF”: No mask unused E1' s alarm.
Fixed spanner
Figure 1 sketch map of RC802-240B
As shown figure 1, all alarms of E1 are receiving signal alarm. The alarm of remote site is sent
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