GeoVision GV-AS2120 IP Control Panel - Manual (Page 93)

GV-AS210 / 2110 / 2120 Controller
91
4
Note:
It is highly recommended that you connect the fire alarm button to the 12V power
port and electromagnetic lock directly, as the figure below shows. This enables all the
associated doors to be triggered even if your GV-AS21 series Controller behaves
abnormally when a fire condition occurs.
GND
GND
12V
12V
IN1
IN2
IN3
IN4
INCOM
INCOM
NO
COM
NC
NO
COM
NC
Power
INPUT
OUTPUT
Exit
Button
1
2 NC NO
COM Fire Alarm
Button
Electromagnetic
Lock
+
-