Testability And Diagnostics - Avaya Nortel Communication Server 1000 Reference

Testability and diagnostics

The DDP2 card supports testing and maintenance functions through the following procedures:
• Self-test upon power up or reset
• Signalling test performed in the LD 30
• Loopback tests, self tests, and continuity tests performed by LD 60 and LD 45
• The D-Channel (DCH, MSDL, DDCH) maintenance is supported by LD 96.
Note:
The MSDL self-test is not applicable to the NTBK51AA/NTBK51CA D-Channel
daughterboard.
Circuit Card Reference
Operation
July 2011 291