Alarm Output; Configuring Chassis Alarm Relays - Juniper ACX1000 Configuration Manual

Alarm Output

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Configuring Chassis Alarm Relays

Copyright © 2017, Juniper Networks, Inc.
Alarm output provides dry contacts to connect to external equipment, such as an audible
or visual alarm that switches on or off–for example, a bell or a light. The four alarm output
relay ports—0 through 3—are set up as follows:
Ports 0 and 1—These ports can be configured to trigger an alarm when the system
temperature goes to the red alarm status and when an alarm input port is triggered.
Ports 2 and 3—These ports are not configured. They are used to indicate system major
and minor alarms and are normally open. When a condition triggers an alarm, an alarm
message is displayed.
To view the alarm input and output relay information, issue the
command from the Junos OS command line interface.
Alarm Contact Port on the ACX2000 Router (Hardware topic)
Configuring Chassis Alarm Relays on page 159
Configuring Chassis Alarm Input on page 160
Configuring Chassis Alarm Output on page 161
relay (Chassis Alarm) on page 1693
On ACX Series routers, you can configure alarm relays that can trigger alarms and turn
external devices on or off. For example, if the router heats up to more than the critical
temperature, the output port is activated and a device connected to the output port—such
as a fan—is turned on.
To configure conditions that trigger alarms, include the
and options at the
output
[edit chassis alarm]
relay
input {
port port-number {
mode (close | open);
trigger (ignore | red | yellow);
}
}
output{
port port-number {
input-relay input-relay;
mode (close | open);
temperature;
}
}
Chapter 4: Configuring Interfaces and Chassis
hierarchy level.
[edit chassis alarm]
show chassis craft-interface
relay statement with the input
159