ADTRAN 25 manual Maintenance

MAINTENANCE

6.Inspect the cabinet backplane and the connectors at the back of the CP. It may be possible to clean dirty connectors per prescribed procedures and return the CP to service. However, if any connectors are damaged or corroded the CP should be replaced.

7.Rest the CP on a firm nonconducting surface, and press in all socketed devices on the CP to be sure that they are firmly connected. Ensure that all straps (if there are any) are firmly seated.

To Replace or Reseat a CP:

1.To reseat a CP, slide it back firmly in its slot. When it is almost back in place, you’ll feel resistance and the removal lever will start to return to its vertical position, flush with the edge of the CP.

2.Push the lever all the way to vertical, until it catches on the latch.

3.The red LED on the CP lights for up to 4 seconds during self-testing and then goes dark when the self-test is okay. If the CP has already been translated, the green LED lights.

4.Recheck the CP LEDs. Red LEDs should be dark. The CPU/Memory CP green LED should flash. Green LEDs on all translated port and trunk CPs should be lighted; amber LEDs may be lighted or dark. The Service Circuit amber LED should be lighted or flashing.

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