7-26
Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter7 Card Provisioning
Provisioning the Alarm Interface Controller
Figure7-4 AIC alarm input and output
7.5.1 Using Virtual Wires
Provisioning the AIC card provides a virtual wires option used to route external alarms and controls
from different nodes to one or more alarm collection centers. In Figure 7-5, smoke detectors at Nodes 1,
2, 3, and 4 are assigned to Virtual Wire #1, and Virtual Wire #1 is provisioned as the trigger 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