Specifications

Maintenance
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IMI 66-031 ’
FAILURE ISOLATION
The red LED located near the fuse holder is the system status
indicator. This indicator should turn on steady when AC power is
applied to the KSU.
If the indicator flashes after power up, it could
be indicating a processor failure. Unplug and reconnect the AC power
to the KSU and observe the LED indication.
If it still shows a.
flashing indication, refer to Figure 9.
Exercise the station self test feature as follows:
1. Disconnect the line cord at the station base.
IMPORTANT NOTE
THE ADJACENT ODD OR EVEN STATION WILL BE DISABLED DURING THE
TIME THAT THE STATION LINE CORD IS BEING DISCONNECTED OR
RECONNECTED.
2.
Press and hold the- MUTE key,
and reconnect the line cord to the
sta,tion connector.
The station will automatically perform a self
test routine.
Release the
MUTE key as soon as the test begins.
The sequence of the test is as follows:
i
a.
The line select indicators will light in sequence from 1 to 8.
b. The intercom select indicator will light.
dc:
The speaker indicator will light.
All indicators will turn off in the same sequence.
e.
The ringer will sound -
Be sure that the ringer volume control
is set to the medium or high volume setting.
;i.
Replace any station that does not pass the self test.
Test the DSS/BLF Console for proper lamp-operation per the following
procedure.
. 1.
Disconnect the console line cord plug from the line.
2.
Press and hold the station. 10 select key while reconnecting the
line cord plug to the line.
; c
I .
IMPORTANT. NCTE
THE COMPANION STATION WILL BE DISABLED DURING THE TIME
THAT THE CONSOLE IS BEING DISCONNECTED AND RECONNECTED.
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