Avaya 555-233-116 manual Testing the integrity of data sent over the loop

Loopback testing with a smart jack

1.At the management terminal, enter test ds1-loopUUCSS cpe-loopback- jack, where UU is the cabinet number, C is the carrier letter, and SS is the slot number of the DS1 board.

The loopback jack powers up. Active, DS1 facility alarms (if any) clear. After about 20 seconds, the first set of results appears on the terminal.

2.If FAIL appears on the terminal display, there may be a fault in the wiring between the ICSU and the loopback jack or the loopback jack may itself be faulty. Isolate the problem by replacing the loopback jack and repeating Step 1.

3.If FAIL still appears after the loopback jack has been replaced, suspect a wiring problem. Replace the cable between the ICSU and the loopback jack. Then repeat Step 1.

4.When PASS appears on the terminal, proceed with the second part of the test, checking the integrity of transmitted data.

Testing the integrity of data sent over the loop

Now perform the second part of the test, checking for data errors.

NOTE:

The loss of signal (LOS) alarm (demand test #138) is not processed during this test while the 3-in-24 pattern is active.

Clearing the results of previous tests

NOTE:

If you have a G700 Media Gateway, substitute XXXVS for UUCSS in the following commands, where XXX is the administered number of the G700 (for example, 002), and VS is the slot number on the G700 of the Media Module (for example, V3). The V is not a variable and needs to be included in the commands exactly where shown. A sample address for a DS1 circuit pack on a G700 Media Gateway might look like this: 002V3.

1.Zero out the bit-error counter. At the management terminal, enter clear meas ds1 loop UUCSS, where UU is the cabinet number, C is the carrier letter, and SS is the slot number of the DS1 board.

2.Zero out the performance measurement counter. At the management terminal, enter clear meas ds1 log UUCSS, where UU is the cabinet number, C is the carrier letter, and SS is the slot number of the DS1 board.

3.Zero out the ESF error count. At the management terminal, enter clear meas ds1 esf UUCSS, where UU is the cabinet number, C is the carrier letter, and SS is the slot number of the DS1 board.

555-233-116 Issue 4 October 2002 139