Circuit Card Features - Nortel Meridian 1 Planning, Installation And Operating Instructions

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Circuit card features

553-3121-210 Standard 3.0
Chapter 25 — Fault locating and clearing
Circuit card features include:
• self-tests
• LED indicators
Self-tests
A self-test checks to see that a circuit card is working correctly. Many cards
perform a self-test on power-up. The software commands Disable and Enable
forces a card to self-test. The results of a self-test generally show whether or
not there is a problem with the card.
Self test information for ISDN 1.5 Mb DTI/PRI cards are contained in
1.5 Mb DTI/PRI Administration and Maintenance.
January 1999