AT&T MERLIN 820 Installation Guide

System Tests
Now that your system equipment is in place, you need to test it to make sure
it’s operating properly. The following tests will help you determine if you have
installed your system correctly and if all your system components are working
correctly. If these tests reveal any problems, see the Troubleshooting Table, page
33.
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TEST THE VOICE TERMINAL JACKS FOR A DIAL TONE
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Move a 34-button deluxe voice terminal to the control unit.
Unplug the jumper cord from the voice terminal jack on the control unit
for intercom 10, and plug the voice terminal’s modular cord into the jack
for intercom 10.
The red light goes on next to the middle button in the leftmost row of flat
buttons.
Touch the fifth button down in the leftmost row of buttons (Intercom-
Ring); then pick up the handset and verify a dial tone.
The green and red lights go on next to the button.
Repeat this step for every line and intercom button on the voice terminal.
Repeat this procedure for every voice terminal jack on the control unit
that you want to test.
If there is no dial tone at one or more line buttons, refer to the Troubleshooting
Table, page 33.
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AT&T MERLIN 820 Specifications

General

Brand	AT&T
Model	MERLIN 820
Category	Conference System
Language	English