- American Video Equipment Video Serial Synchronous ATM Interface Operation Manual

55
HARD ALARM OUTPUT
The Alarm Output provides one open collector transistor alarm output to trigger alarming devices. Upon an Exception,
a VSSI-Pro can be programmed to trigger a VCR to go to its fastest record time, have a Quad go full screen, home a
switcher, trigger a preprogrammed PTZ, or provide visual or audible alarms.
Following are some basic circuit designs to take advantage of the Alarm Output.
10K
RESISTOR
+5VDC
EX BOARD
ALAR M 1
TTL
REL AY
+12VDC
EX BOARD
AL AR M 1
RELAY
LED
1K
RESISTOR
+12VDC
EX BOARD
ALAR M 1
LED
Figure 1G: Hard Alarm Output
HARD ALARM OUTPUT APPENDIX G
VSSI-Pro VIDEO SERIAL ATM INTERFACE