28Chapter 3 Hardware Troubleshooting

Figure 5 Example: Bootloader.log file with no errors

Figure 6 Example: Boot file with errors

Testing basic hardware functionality

This section describes how to test the components of the BCM450 system, and how to troubleshoot them if they fail the test.

Use the following procedures to help isolate and identify problems with your BCM450 hardware:

To test the main unit on page 29

To troubleshoot the main unit on page 29

To test the expansion unit on page 29

To troubleshoot the expansion unit on page 30

Testing an MBM on page 30

Troubleshooting the FEM on page 31

To determine why the ATA 2 does not function on page 31

To determine why there is no dial tone at the ATA2 on page 32

To check the ATA2 wiring on page 32

Reset to factory settings on page 32

To perform a Level 1 reset (configuration reset) on page 34

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Nortel Networks BM450 manual Testing basic hardware functionality, Example Bootloader.log file with no errors