Generating Central Office Alarms - Lucent Technologies PacketStar User Manual

Chapter 2 Module Description
Functional Description

Generating Central Office Alarms

®
PSAX 4500 Alarm Module User Guide, Issue 1
PacketStar
2-2
Like all of the other PSAX modules, the PSAX 4500 Alarm module is moni-
tored and controlled through the console or EMS-PSAX. For a detailed
description of the PSAX 4500 Alarm module, see the PacketStar
Alarm Module User Guide.
COs and remote switch rooms have alarm panels with bells and lights that
report on the status of the equipment in the facility. The PSAX 4500 Alarm
module provides an interface with these alarm panels by generating alarms
that indicate the chassis has failed in some fashion.
Alarms are generated from several sources from within the chassis and
reported to the CPUn module. Upon receipt of an alarm, the CPUn module
sends a status message to the PSAX 4500 Alarm module, which generates the
appropriate alarm, depending on the severity of the alarm (see "Alarm Out-
puts" on page 2-3). The module then alerts the technician of the problem
through the alarm panels and sends a trap message to the NOC (see Packet-
®
Star PSAX Simple Network Management Protocol (SNMP) Trap Reference Guide).
Figure 2-2 provides an example of a sequence of events that would cause the
PSAX 4500 Alarm module to generate an alarm:
1. The Stratum 3–4 module fails and a minor alarm message is sent to the
PSAX 4500 Alarm module.
2. The PSAX 4500 Alarm module
lamp light, and the Minor alarm bell rings.
3. The technician locates the malfunctioning system and presses the mod-
ule's switch or remote CO ACO device to silence the audible alarm.
ACO
4. The technician replaces the Stratum 3–4 module and resets the audible
alarm by pressing the module
MINOR alarm LED and CO Minor alarm
switch or the CO ACO device.
ACO
®
PSAX 4500
Release 10.0.0
255-700-598