Raisecom Technology Co., Ltd
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6.2. Front panel explanation:
Front view:
6.2.1. Globle indicator lights:
SYS（green）: Indicates system work status. Flicking: system works normal. ON: 1 CUP
works abnormal; 2 system configuration error or the following problems:
1．User-board communicates abnormally
2．Temperature sensor works abnormally
3．Fan does not work
4．Time slots configuration error
OFF: CPU works abnormally
PWR（green）: OFF system is not powered on
TX（green）: ON serial interface is transmitting data
RX（green）: ON serial interface is receiving data
6.2.2. Indicator lights of line-board:
4E1（green）: ON line-board is 4E1 interface card
2E1（green）: ON line-board is 2E1 interface card
OPT（green）: ON line-board is optical interface card
Note: only one of the three lights can be ON, otherwise there is system error.
6.2.3. Optical interface alarm indicator lights:
Optical interface alarm indicator lights form a matrix, L and R indicate local and remote,
OP（LOS,LOF , E-3, E-6）indicate alarms:
L OP LOS（red）: Loss of signal at local
L OP LOF（red）: Loss of frame at local
L E1 E-3（red）: Alarm when bit error ratio is more than 10
-3
/s at local
L E1 E-6（red）: Alarm when bit error ratio is more than 10
-6
/s at local
R OP LOS（red）: Loss of signal at remote
R OP LOF（red）: Loss of frame at remote
Figure 17
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