Specifications

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Cisco IGX 8400 Series Provisioning Guide, Release 9.3.3 and Later Releases
OL-1166-04
Chapter 2 Cisco IGX 8400 Series Cards
Alarm Relay Module
Note If a firmware image upgrade is necessary for a card installed in the node, you may need to upgrade the
card’s firmware before upgrading the switch software image to avoid operational problems in your
network. Check the firmware release notes for specific information on upgrade procedures.
Optional Peripherals
At least one node in a network should have a Cisco WAN Manager terminal, a control terminal, or a
dial-in modem connected to it. Any control terminal connected in the network can configure, manage,
monitor, and diagnose the entire network. In addition, at least one node in a network can have a
connected printer for error and event reports.
The control terminal and printer connect to two EIA/TIA-232 serial ports. These ports are the control
terminal and auxiliary port on the SCM faceplate. These serial ports support all standard asynchronous
data rates from 1200 to 19,200 bps. The default rate is 9600 bps. Data rates and the type of equipment
connected to the ports are software-configurable.
Alarm Relay Module
The IGX alarm interface module consists of an alarm relay module (ARM) front card and an alarm relay
interface (ARI) back card.
The module performs the following major functions:
• Provides alarm summary outputs through use of relay contact closures
• Provides a visual indication of an IGX node alarm through the ARM faceplate
• Provides a visual alarm history indication
Note Alarm reporting through the alarm interface module is separate from alarm output to the node’s
control port which provides alarm data to a control terminal such as a CWM network
management station.
One set of alarm relays signals a major or minor alarm on the node, with one pair of contacts on each
relay being used for audible alarms. The other set of relay contacts is used for visual alarms (see
Table 2-5).
.
Table 2-5 Alarm Relay Module Alarm Reporting
Type Severity Indicator ARM Action
Network Major None Single form C relays are normally open.
Network Minor None Single form C relay are normally open or
normally closed.
Node Major Major LED
(red)
Visual and audible relays are normally open.
Node Minor Minor LED
(yellow)
Visual and audible form C relays are normally
open or normally closed.