General Telephone Troubleshooting; General Telephone And Wiring Problems - Avaya MERLIN MAGIX Maintenance And Troubleshooting Manual

Maintenance and Troubleshooting

General Telephone Troubleshooting

Use this procedure as a general guideline for troubleshooting telephones.
1. Replace the telephone (or adjunct) with one that works properly.
1. If the problem persists, connect the telephone directly to the control unit, using a cord that
works properly.
If this solves the problem, replace the original cord.
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The power supply may be shorted or open. If the wiring has been crushed or severed,
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replace it.
a. Test the power supply for 48 VDC with a voltmeter or by reconnecting the
telephone or adjunct.
b. If the test for 48 VDC fails, replace the circuit pack in the telephone or adjunct.
CAUTION:
A faulty circuit pack has the potential to damage the power supply, which can cause
widespread damage throughout the system.
2. If the problem persists, replace the mounting cord.
3. If the problem continues, proceed as described in the next sections.
If you change the jack assignment of any telephone, be sure to record the extension jack change
on Form 2a, System Numbering: Extension Jacks, shown in Appendix B.

General Telephone and Wiring Problems

If intermittent telephone trouble occurs, use the following steps as a guideline to check for general
telephone and wiring problems.
Refer to ''Trunk Errors''
on T1 trunks with GS emulation connected to a toll office.
1. Check modular connections in the telephone for loose or broken connectors.
2. Check modular connections in the connecting blocks for loose or broken connectors.
3. Check modular connections in the control unit for loose or broken connectors.
4. Check transient errors in the error logs for any possible clues.
5. If local power is provided, check the power supply connectors and voltages.
6. Replace the telephone with a telephone that works to determine whether the problem is the
telephone itself.
7. If trouble disappears, replace the problem telephone.
Fixing Telephone Problems
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on page 5-1 if the reported problem is echo during conversations
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