Specifications

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Cisco ONS 15454 Product Overview, R3.3
May 2002
Cisco ONS 15454 Product Overview
Alarm Collection and Display
Alarm Suppression
From the card view you can suppress alarms on specific ports. From the node
view, you can suppress alarms on specific cards or the entire node.
If alarms are suppressed, they do not appear on the CTC Alarm screen. On the
History screen a message states that the alarms are suppressed, and the Conditions
tab shows alarm suppression conditions. The node sends out autonomous
messages to clear any raised alarms. When alarm suppression is turned off, the
node sends out autonomous messages to raise any suppressed alarms.
Alarm Cutoff
Visual and audible (user-defined) alarms are typically wired to trigger an alarm
light or sound at a central alarm collection point when the corresponding contacts
are closed. The alarm cutoff (ACO) function stops (turns off) the transmission of
the alarm signal to the alarm collection point. To activate the ACO function, press
the ACO button on the AIC card faceplate. The ACO button clears all audible alarm
indications. The alarm is still active in CTC and needs to be cleared.
Customer-Defined External Alarms and Controls
The AIC card allows you to provision four external alarms and four external
controls. Use external alarms for open doors, temperature sensors, flood sensors, and
other environmental conditions. Use external controls to drive visual or audible
devices such as bells and lights. The alarm-triggering conditions for the external
controls can be user-defined external input alarms, remote alarms, or severity-based
alarms (for example, alarms that trigger when any Major alarm happens).
Figure 17 shows a diagram of the input and output process for external alarms and
controls.