Specifications

Cisco ONS 15327 Product Overview
Alarm Collection and Display
24
Cisco ONS 15327 Product Overview, R3.3
June 2002
Figure 20 External alarm input and output
Provisioning external alarms and controls provides a "virtual wires" option that
you can use to route alarms and controls from different nodes to one or more
alarm collection centers. For example, inFigure 21, smoke detectors are
provisioned as external alarms at Nodes 1, 2, 3, and 4. The alarms are assigned to
Virtual Wire 1, and Virtual Wire 1 is provisioned as the trigger (control) for an
external bell at Node 1.
RelayRelay
RelayRelay
CTC alarm turns on
an external device
External device
generates CTC alarm
External control External alarms
Heat
sensor
Smoke
detector
Light
Bell
38566
= External alarm
= External control