Avaya 03-300430 User Manual

The status of the Far CSU Loopback test appears in the hardware error log via Error Type 
#3901. Several aux values give information on the status of the test.
Use list measurements ds1 summary to show the length of time the test has been running 
(Test Duration field) and number of bit errors detected (Loopback/Span Test 
Bit-Error Count field). If the test pattern is passed through the loop back cleanly, the 

number of bit errors should be very low. The command also shows the type of loop-back/span 
test executing (Test field), the type of pattern generated for the loop-back/span test (Pattern 

field), and whether the pattern (i.e., 3-in-24 Pattern) is synchronized (Synchronized field).
Use test ds1-loop location end-loopback/span-test or release board to end 

the test.   Use release board to restore all trunks or ports on the TN767E DS1 Interface 

circuit pack to the in-service state.

ABRT

Internal system error

1. Retry test ds1-loop location 

far-csu-loopback-test-begin at 1-minute intervals up to 5 

times.

1005

ABRT

Far CSU Loopback test cannot be executed in the current configuration. To 

run this, the TN767E (or higher-suffixed) DS1 must be administered for 

24-channel operation. The Bit Rate field on the DS1 circuit pack 

administration screen must be set to “1.544” for 24-channel operation.

1015

ABRT

Ports on the DS1 Interface circuit pack have not been busied out to 
out-of-service.

1. Enter busyout board location to put all trunks or ports of the DS1 

Interface circuit pack into the out-of-service state.

2. Retry the command.

1039

ABRT

The DS1 Interface circuit pack is providing timing for the system. Executing 

this test could cause major system disruption.
If the DS1 Interface circuit pack needs to be tested, set the synchronization 
reference to another DS1 Interface circuit pack or to the Tone-Clock circuit 
via the following command sequence:

1. Enter disable synchronization-switch.
2. Enter enable synchronization-switch set 

synchronization location.

3. Enter enable synchronization-switch.

 1 of 3