Avaya 03-300430 User Manual

The Digital Looparound test checks the data line port’s ability to transmit and receive data on 
the TDM Bus. Data is sent through an available Maintenance/Test digital port over the TDM 
Bus, internally looped through the data line port back onto the TDM Bus, and received again by 
the same Maintenance/Test digital port.
Only one of the two digital ports on a Maintenance/Test circuit pack is used for this test, and that 
port must be the first such port; such as port 02. If port 02 is in use, out-of-service, or not 
present, the test aborts. This test may fail if the Maintenance/Test digital port used by the test is 
not functioning properly. If there are any M/T-DIG errors in the Error Log, see 

on page 1705 to clear them first.

This test will pass regardless of any customer equipment that may be connected to the port, as 
long as the equipment is not using the port.

ABRT

Internal system error

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

1000

ABRT

System resources required to run test are not available. The port may be in 
use on a valid call. Use status data-module to determine when the port 

is available for testing.

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

1005

1007

ABRT

Data Channel 3 is not administered. This port is required to run this test.

1. Verify that data channel 3 is not administered with list 

data-module. Administer data channel 3 with add data-module, 

and run this test again.

1016

ABRT

Data Channel 3 is busy. The port may be in use on a valid call. Use status 
data-module to determine when the port is available for testing.

1. Retry the command at 1-minute intervals a maximum of 5 times.

1020

ABRT

An existing Error Type #769 on this port prevented the test from running.

1. Follow the procedure following the Error Log Table for Error Type #769.

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