Cisco 15454-DS1-14= - 1.544Mbps Expansion Module Spécifications télécharger pdf (Page 30)

Cisco ONS 15454 Product Overview

Alarm Collection and Display

Cisco ONS 15454 Product Overview, R3.3

May 2002

Figure 17 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, in Figure 18, 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

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

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Cisco 15454-DS1-14= - 1.544Mbps Expansion Module Spécifications Page 30