B-2
Operator's Manual
Alarm and Relay Connections
The back panel of the video matrix switcher provides eight alarm contact
inputs, an external frequency synchronization input, and contact terminations
for an internal alarm-activated relay. The Form-C internal relay may be
activated during alarms for control of a VCR or other alarm response device.
1 3 5 7 9 11 13 15 17 19 21 23 25 27
2 4 6 8 10 12 14 16 18 20 22 24 26 28
1 2 3 4 5 6 7 8 SI NO NC C
1 2 3 4 5
1 2 3
RS232 PORTS
MONITORS
ALARMS
RELAY
CAMERAS
1 2 3 4 5 6 7 8 SI NO NC C
ALARMS
RELAY
Figure B.1: Alarm/Relay Connections
The following is a description of the alarm and relay connector pins.
Pin Number
Description
1
Ground
2
Alarm 1
3
Alarm 2
4
Alarm 3
5
Alarm 4
6
Alarm 5
7
Alarm 6
8
Alarm 7
9
Alarm 8
10
Ground
Video Matrix Switcher—Rear Panel
Pin 1
Pin 16
120V/60Hz
Or
220V/50Hz
