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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter 13 Alarm Monitoring and Management
13.8 Provisioning External Alarms and Controls
13.8 Provisioning External Alarms and Controls
External alarm inputs can be provisioned on the Alarm Interface Controller-International (AIC-I) card
for external sensors such as an open door and flood sensors, temperature sensors, and other
environmental conditions. External control outputs on this card allow you to drive external visual or
audible devices such as bells and lights. They can control other devices such as generators, heaters, and
fans.
You provision external alarms in the AIC-I card view Provisioning > Card > External Alarms tab.
Provision controls in the AIC-I card view Provisioning > Card > External Controls tab. Up to 16 external
alarm inputs and 4 external controls are available with the AIC-I card.
13.8.1 External Alarm Input
You can provision each alarm input separately. Provisionable characteristics of external alarm inputs
include:
• Alarm type, from a list of possibilities in a drop-down list
• Alarm severity (CR, MJ, MN, NA, and NR)
• Alarm-trigger setting (open or closed): Open means that the normal condition is no current flowing
through the contact, and the alarm is generated when current does flow; closed means that normal
condition is to have current flowing through the contact, and the alarm is generated with current
stops flowing.
• Virtual wire associated with the alarm
• CTC alarm log description (up to 63 characters)
Note If you provision an external alarm to raise upon an open contact before you physically connect
to the ONS equipment, the alarm will raise until you do create the physical connection.
Note When you provision an external alarm, the alarm object is ENV-IN-nn. The variable nn refers to
the external alarm’s number, regardless of the name you assign.
13.8.2 External Control Output
You can provision each alarm output separately. Provisionable characteristics of alarm outputs include:
• Control type
• Trigger type (alarm or virtual wire)
• Description for CTC display
• Closure setting (manually or by trigger). If you provision the output closure to be triggered, the
following characteristics can be used as triggers:
–
Local NE alarm severity—A chosen alarm severity (for example, Major) and any
higher-severity alarm (in this case, Critical) causes output closure.
–
Remote NE alarm severity—Similar to local NE alarm severity trigger setting, but applies to
remote alarms.