AT&T System 85 User Manual

Page 121

CHAPTER 8. TROUBLESHOOTING PROCEDURES FOR VOICE TERMINALS

◆

If the voice terminal has a display module, all its lights and the display matrix

go on.

◆

If the voice terminal has a call coverage module, all its lights go on.

2. Release the test switch.

◆

Tone ringing stops.

◆

All lights associated with the feature-only buttons

light momentarily after the test switch is released.

(7405D voice terminals)

◆

If the voice terminal has a feature key module, all its lights light briefly after

the test button is released.

◆

All other lights on the voice terminal go off.

◆

If the voice terminal has a display module, all its lights and the display matrix
go off.

●

If the voice terminal has a call coverage module, all its lights go off.

3 . If any part of this test failed, notify your System Manager.

7404D Digital Voice Terminal

Hold the test switch (located on the left side of the base) toward the rear of the voice

terminal.

◆

Tone ringing is heard.

◆

All lights go on.

2 .

Release the test switch.

◆

Tone ringing stops.

◆

All lights go off.

◆

A pass or fail message will be displayed on the associated data terminal

screen. (The message will differ if the voice terminal is equipped with option
cartridges.)

If any part of this test failed, notify your System Manager.

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