Avaya S8700 Maintenance Manual page 1693

For multi-connect configurations

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ISDN-LNK (ISDN-PRI Signaling Link Port)

A problem with an ISDN-LNK will affect every associated B channel since, without

it, no call-control information can be conveyed to the far-end switch or to a

terminal adapter. Stable calls may remain operational, but no new calls can be

placed. In turn, the ISDN-LNK depends on the:

TN464C/D UDS1 Interface circuit pack where it resides

packet bus that provides the link to the processor

If there are problems with the ISDN-LNK, also investigate the TN464C/D UDS1

Interface circuit pack (UDS1-BD) and the packet bus (PKT-BUS).

Hardware Error Log Entries and Test to Clear

Table 8-383. ISDN-PRI Signaling Link Port Error Log Entries

Associated Test

busyout port UUCSSpp

Signaling Port LAN

Loop-Back test (#939)

Run the short test sequence first. If every test passes, run the long test sequence. Refer to each appropriate

test's description, and follow its recommended procedures.

pp is 24 for 24-channel interfaces and 16 for 32-channel interfaces.

a. The D channel is demand busied out. No calls can be made over this

b. This Error Type indicates that the circuit pack has been removed or has

been insane for more than 11 minutes. To clear the error, reinsert or

replace the circuit pack.

Issue 1 May 2002

Test to Clear Value

test port UUCSSpp

release port UUCSSpp

test port UUCSSpp

test board UUCSS l

test port UUCSSpp

Troubleshooting