255-700-447
2-7
PacketStar
®
PSAX 2300 Multiservice Media Gateway User Guide
, Issue 1
Release 9.0.0
Chapter 2 Hardware Description
Functional Description
The standby module supports complete console and SNMP interfaces, in the
same way the active module supports them, except that the standby module
blocks all set operations.
Alarm Module
The Alarm module (see Figure 2-5) provides two connectors that allow for
connections with external facility sensor inputs (doors, temperature, and so
on), chassis alarm outputs (visible and audible), external device controls
(cooling, heating, doors, and so on), and audible alarm cutoff controls (see
Figure 2-6). In addition, the CPUn module generates trap messages that
reflect state changes of the Alarm module’s sensor inputs, control outputs,
and alarm cutoff control.
The Alarm module is functionally identical to the PSAX 4500 Alarm module
(model 45N79) for the PSAX 4500 system, but the module is designed to be
mounted only in the front panel (slot
14
) of the PSAX 1250, PSAX 2300, or
PSAX 4500 chassis.
Like all of the other PSAX modules, the Alarm module is monitored and con-
trolled through the console or AQueView EMS. For a detailed description of
the Alarm module, see the PacketStar PSAX Alarm Module User Guide.
Figure 2-4. CPU2 Module
ACTIVE
CPU2
FAIL
ETHERNET
CONSOLE
LOAD
