Maintenance and Troubleshooting

Flowchart

From 3

Use loopbacks to isolate alarm condition

Alarm Internal?

No

Contact distant end - have them start troubleshooting

Alarm Clears?

No

3A

 

 

 

Check following most likely

 

 

 

 

 

 

 

 

 

causes/correct as necessary:

 

 

 

 

 

 

 

 

 

-equipment cable connectors

 

 

Alarm Clears?

Yes

 

 

 

 

 

-NIM configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-reseat NIM module

 

 

 

 

 

 

 

 

 

-replace NIM module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

LOS-check Fiber

 

 

 

 

LOF/LOP/LOCD check Sync

 

 

 

 

 

 

 

 

 

 

Alarm Clears ?

Yes 3B

No

3A

Yes

Yes

Review Alarm Summary and

System log- call Customer

Service with pertinent information

3B

Return to

3

Figure 8-5: NIM Major Alarm Troubleshooting Flowchart

8-26

Broadmore 1750 - Release 4.6

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Image 214
Carrier Access 1750 user manual NIM Major Alarm Troubleshooting Flowchart