Carrier Access 1750 user manual Failure Recovery

Maintenance and Troubleshooting

Failure Recovery

Failure Recovery

Failure recovery is the sequence of events necessary to bring the Broadmore 1750 back to fully operational status after an unexpected service interruption. Throughout the recovery process, specific problems should be corrected following the troubleshooting flowchart (see Figure 8-2). The steps in failure recovery are:

1.Ensure sufficient stable electrical power is available to both the Broadmore 1750 and the control station. Observe successful completion of POST.

2.Establish communications from the control station to the Broadmore 1750. Login and view alarm LEDs. Correct all hardware problems before proceeding.

3.The Broadmore 1750 will automatically load the configuration that was saved for power-up. PVC and originated SVC connections will be re-established to the ATM backbone. Far-end originated SVCs must be re-established from the far end. Alternate previous system configurations may be loaded if they were saved. This is accomplished following the sequence below.

Select System Management ↵

Select Configuration Files ↵

Select the saved file to restore ↵

4.Monitor activity for individual slots and for the ATM connection.

5.Verify configuration of the NIM(s). Validate parameter settings with the ATM switch if in doubt. Check the timing options and other parameters. Change as necessary to eliminate any errors.

6.Verify configuration of the installed SAMs. Monitor individual slots.

7.Monitor activity for the ATM connection. Select individually defined circuits to edit or connect and monitor the respective port.

Broadmore 1750 - Release 4.6 8-21