Audible Alarm Cutoff (Aco); Generating Alarms - Lucent Technologies PacketStar User Manual

Chapter 2 Module Description
Functional Description

Audible Alarm Cutoff (ACO)

®
PSAX 4500 Alarm Module User Guide, Issue 1
PacketStar
2-6
A No Alarms
Critical Major
Alarm Panel
Major Alarm Generated
B
Major
Critical
Alarm Panel
Figure 2-4. Generating Alarms
The alarm cutoff (ACO) function provides a method of silencing the audible
alarms caused by an alarm condition being reported by the chassis; it has no
effect on the visible alarms activated by the module. The alarm cutoff is con-
trolled through the
ACO
device (connected through the
could be a switch, relay contacts, or software command.
When an audible alarm occurs, pressing the module
the remote ACO device once performs the following functions:
• Silences the audible alarms, but does not clear the alarm condition
• Illuminates the yellow
• Reports the change in state to the CPUn module
Pressing the module ACO
second time performs the following functions:
• Reestablishes the audible alarm functionality
• Extinguishes the yellow
PSAX
Minor
Alarm Module
Alarms
9 NO
10 COM
17 NC
PSAX
Minor
Alarm Module
Alarms
9 NO
10
COM
17 NC
switch on the module and from a remote ACO
connector). A remote ACO device
ALARM
ACO LED on the module
switch or deactivating the remote ACO device a
LED on the module
ACO
Major Alarm
Visible
Major Alarm
Generated
NO - Normally Open
NC - Normally Closed
COM - Common
ACO switch or activating
Release 10.0.0
255-700-598