Avaya 03-300430 User Manual

The processor on the PN’s Maintenance circuit pack has direct access to special registers in the 
Maintenance circuit pack. These registers are tied to such things as the Expansion Interface 
circuit pack reset leads and Carrier Port Power Unit reset leads (which enable the PN’s 
Maintenance circuit pack to recycle carriers). To prevent an insane Maintenance circuit pack 
from inadvertently controlling these external devices, a special interface called the Sanity Maze 
is provided that must first be navigated by the Maintenance circuit pack processor prior to any 
register access. There are two parts to the test. Part 1 involves navigating the Sanity Maze to 
toggle an unused lead. Part 2 attempts to toggle an unused lead without first navigating the 
Sanity Maze. The Sanity Maze test passes if Part 1 is successful and Part 2 fails.

PASS

The on-board circuitry associated with both Expansion Interface circuit 
pack serial links is good. If there is still a problem communicating with the 
PN’s Maintenance circuit pack, check the following:

1. The cable comprising the serial link (B carrier Expansion Interface 

circuit pack to PN’s Maintenance circuit pack only) may be defective.

2. The PN’s Maintenance circuit pack may actually be defective.

This test may not be 100 percent accurate.

3. The Expansion Interface circuit pack on the standby link may be 

defective.

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1000

ABRT

System resources required to run this test are not available.

1. Retry the command at 1-minute intervals up to 5 times.

2000

ABRT

Response to the test was not received within the allowable time period.

1. Retry the command at 1-minute intervals up to 5 times.

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