Avaya G450 Installing And Upgrading page 266

Power supplies and adjunct systems
1. On the SAT, type busyout board XXXVS
where XXX is the administered number of the G450 (for example, 002), and VS is the slot
number on the G450 of the Media Module (for example, V3).
2. Type change ds1 XXXVS to open the DS1 administration form.
3. Make sure that the near-end csu type field is set to integrated.
4. Go to page 2 of the DS1 administration form, and verify that the value of the TX LBO field
is 0dB.
5. If the value of the TX LBO field is not 0dB, record the current value.
Then set the TX LBO field to 0dB for testing.
6. Press ENTER to make the changes.
7. Type test ds1-loop XXXVS cpe-loopback-jack.
where XXX is the administered number of the G450 (for example, 002), and VS is the slot
number on the G450 of the Media Module (for example, V3).
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.
8. If FAIL appears on the terminal display, there may be a fault in the wiring between the
MM710 and the loopback jack or the loopback jack may itself be faulty.
Isolate the problem by replacing the loopback jack and repeating step 8.
9. If FAIL still appears after the loopback jack has been replaced, suspect a wiring problem.
Replace the cable between the MM710 and the loopback jack. Then repeat step 8.
10. When PASS appears on the terminal, proceed with the second part of the test, checking
the integrity of transmitted data.
266 Installation and Upgrades for the Avaya G450 Media Gateway