Corrective Maintenance; Transmission Testing Of Tie Trunks; Testing Loss - Avaya Communication Server 1000 Series Reference

Maintaining transmission performance

Corrective maintenance

Follow-up to trouble reports generated by end users or software diagnostics identifies various
trunk problems in need of correction.

Transmission testing of TIE Trunks

ESN switches are capable of accessing a quiet termination or a 1020 Hz test tone at a remote
ESN switch. These capabilities permit the testing of TIE Trunk transmission performance.

Testing loss

The following test is performed at each end of each TIE Trunk so both directions of transmission
are checked:
1. From the maintenance terminal, load the trunk test program and access the remote
2. Connect a transmission level meter to the "facility in" access jacks of the trunk under
The permitted level requirements, based on a switched-in pad mode at the far-end switch, are
given in Table 12: Transmission level requirements
Table 12: Transmission level requirements
Trunk design loss (dB)
48 Electronic Switched Network Reference — Signaling and Transmission
test tone for the trunk to be tested.
test. Measure the level of the 1020 Hz test tone.
0
0.5
1.0
1.0
2.0
2.5
3.0
3.5
Comments? infodev@avaya.com
on page 48.
Minimum (dBm)
–17.5
–18
–18.5
–19
–19.5
–20
–20.5
–21
Maximum (dBm)
–11.5
–12
–12.5
–13
–13.5
–14
–14.5
–15
August 2011