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OSC not reporting alarm w...

OSC not reporting alarm while OCH report R_LOS

Created: Nov 26, 2021 08:01:53Latest reply: Nov 27, 2021 00:03:06 264 4 0 0 0
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Hello
why is it that in a link the osc is not reporting alarm but the och report R_LOS alarm?

2) please what are the process of clearing the alarm on OCH.
Will appreciate screenshot example
Thanks

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Malik3000
MVE Created Nov 26, 2021 13:37:28

Hello.
1-in TX site make sure that the signal (fiber) between the line board and the mux is ok , in RX site make sure signal(fiber) between the line board and the demux is ok .
2-make sure that the frequency is for the line board is correct as planned and in the right port in TX and RX.
3-make sure that the variable attenuator in the MUX board is correct .
4- if you have OPM board you can trace the signal point by point along the path . For example check in the FIU in the TX site that the signal out from the site correctly. Then in the sites along the path make sure that the signal passthrough the site .then in the RX site check in the receive amplifier board mon port that the signal received correctly .

Regards
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liqiang185
liqiang185 Admin Created Nov 26, 2021 08:06:25

Dear friend!
If no alarm is generated on the OSC, the OCh reports an R_LOS alarm. This indicates that the optical cable is probably not broken. The connection between the FIU board and the line board is abnormal.

OCH

For alarm handling, Please click R_LOS to obtain detailed information.


Thanks!

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Malik3000
Malik3000 MVE Created Nov 26, 2021 13:37:28

Hello.
1-in TX site make sure that the signal (fiber) between the line board and the mux is ok , in RX site make sure signal(fiber) between the line board and the demux is ok .
2-make sure that the frequency is for the line board is correct as planned and in the right port in TX and RX.
3-make sure that the variable attenuator in the MUX board is correct .
4- if you have OPM board you can trace the signal point by point along the path . For example check in the FIU in the TX site that the signal out from the site correctly. Then in the sites along the path make sure that the signal passthrough the site .then in the RX site check in the receive amplifier board mon port that the signal received correctly .

Regards
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  • x
  • convention：
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user_4230563
user_4230563 Created Nov 27, 2021 00:03:06

Can I as well query the board reporting the alarm on the NE panel?
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Malik3000
Malik3000 Created Nov 27, 2021 05:52:47 (0) (0)
of course ,,yes  
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