System Alarm Contact Inputs; Configuring Lldp - Alcatel-Lucent 7450 Basic System Configuration Manual
Ethernet service switch /service router /extensible routing system
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45999999 interval 500
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A:ALA-49>config>system>thresholds#
System Alarm Contact Inputs
Alarm contact inputs are physical input pins on the Alarms Interface Port of the CPM that
allow the operator to monitor and report changes in external environmental conditions. In a
remote or outdoor deployment, alarm inputs typically allow an operator to detect conditions
such as whether a door is open or closed, an air conditioner fault has occurred, and so on.
There are four input pins, each of which can be configured with an associated severity level
and normally open/normally closed state. When an input pin changes state, the router can
generate log events and raise facility alarms.
There is a separate log event for each pin (for example, CHASSIS event 3003
tmnxSasAlarminput3StateChanged for input pin 3). The severity level of input pin 3 is
controlled by configuring the severity level of the associated log event (using the configure
log event-control command).
There is also a single +24VDC power output pin on the Alarms Interface Port of the CPM
that can be used to supply power for the alarm inputs.
The alarm inputs can be powered in one of two ways:
The power output pin provided on the CPM is monitored, and the router can report when the
power source fails.
If using an external power source for the alarm inputs, then it is recommended that the
normal-state closed configuration be used so that a failure of the external power source will
trigger all the alarm pins to detect a change of state. If normal-state open is used, a failure
of the external power source will not generate any notifications and the alarm input pins will
no longer operate correctly.
Configuring LLDP
The following output displays LLDP defaults:
Basic System Configuration Guide
memory-use-alarm rising-threshold 50000000 falling-threshold
•
using the +24Vdc power output pin
•
using an external power source
System Management
323
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