AT&T System 85 - Manual (Page 125)

CHAPTER 8. TROUBLESHOOTING PROCEDURES FOR VOICE TERMINALS
Attendant Console
1. Ensure that a handset/headset is plugged into one of the handset/headset jacks
2 .
3 .
4 .
located on either side of the console.
Open the front panel of the console; depress and hold down the
◆ Tone ringing is heard.
◆ The display matrix and then each row of red lights
sequence from top to bottom. If there is an associated
red lights also go on
Release the TEST switch.
◆ Test ringing stops.
TEST switch.
light and go off in
selector console, its
and off in sequence from top to bottom.
◆ All lights and the display matrix go off.
If any part of this test failed, notify your System Manager.
If the console appears to be in a “locked” condition, that is, cannot receive or place calls,
unplug the handset/headset or the mounting cord for at least 10 seconds. Then plug the
handset/headset or the cord in again to recycle power to the console. If the trouble persists,
notify your System Manager.
Alarms
The console has a built-in alarm light that indicates troubles in the switch. In addition, feature
button lights on the console and on some voice terminals can be administered as alarm
indicators for some specific conditions.
ALM/ACK Lights
The basic alarm indicator of the attendant console is the ALM/ACK light located to the left of
the touch-tone dial. The ALM light goes on when a trouble is detected and stays on until the
trouble is cleared. If the switch has the remote maintenance option, the adjacent ACK light
soon goes on, showing that the maintenance center has been automatically alerted. At this
point, the center assumes responsibility for clearing the trouble.
If the ACK light flashes for an extended length of time after the ALM light goes on, it means
the switch is unable to notify the maintenance center. You must notify the System Manager
of the unresolved alarm condition.
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