4-4
Alarms
AN2016 Cabinet User Guide Rel 1.0 Standard May 1999
DDM + alarm
The DDM+ alarm is generated when a minor or a major alarm is detected.
Soneplex loop extender alarm
The Soneplex loop extender alarm is generated when a minor, major or critical
alarm is detected.
Alarm connections
All of the above alarms are precabled to a four by ten wire wrap block (TB1).
Eleven pins on the wire wrap block are prewired to the eleven telemetry input
alarms on the ABM shelf # 1. The telemetry input #3 is reserved for the ACO.
To select an alarm, cross connect any 15 of the equipment alarms to the
telemetry input alarm (see Table 4-1 and Figure 4-2).
To connect the alarms, follow Procedure 4-1, “Connecting the alarms”.
Figure 4-2
ABM shelf telemetry input alarms
AN0105.eps
1
2
3
4
5
6
7
8
9
10
ABM 1
shelf
A B C D
Common
(ground)
Alarm block TB1
Dc distribution
shelf
ACO
ECU
RMU
Battery breaker
panel
DDM+ or
Soneplex
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