202 / Troubleshooting

You should hear page tone through the telephone speaker at the maximum volume. The volume returns to its previous setting when you end the test.

Pressing any button ends the test.

Testing the power supply to a telephone

1.Press ƒ°‚fi, then £or NEXT until the display reads Power test.

2.Press TEST or ˙to go ahead with a power supply test.

You should see all the indicators on the telephone go on and hear ringing at maximum volume. When the test has ended, the display should briefly show Power OK.

The test lasts for five seconds or until you press a button.

Modular ICS 4.0 System Coordinator Guide

P0881591 Issue 01

Page 214
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Nortel Networks Modular ICS 4.0 manual Testing the power supply to a telephone