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