Installation manual

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Installation Manual
Direct Alarm and Relay Connections
Relay Outputs
The MegaPower 48+ patch panel provides a section for direct connection to two normally-open or normally-closed relay
outputs for switching of auxiliary devices such as lights, gates, audio alerts, recorders, etc.
Patch Panel Alarms
The MegaPower 48+ patch panel provides 16 screw terminals and corresponding ground returns for direct connection
to normally-open alarm contacts. These connections are referred to as “patch panel” alarms. Patch panel alarms are
connected with shielded, two-wire cable. Both the shield and ground wires must be connected to the ground terminals
in the patch panel alarm section.
System Alarm Handling
The total alarm handling capability of a single MegaPower 48+ is provided by 16 patch panel alarms, 512 RS232 alarms
wired through the AD2096A Alarm Interface Unit, 192 dome alarms (up to 48 domes, with four alarm contacts per
dome), and up to 48 video loss alarms that are generated when a loss of video sync is detected at a video input.
See Drawing 23, Page 36 for typical direct alarm and relay connections to a single MegaPower 48+ unit.