Installation Manual
Microdome Duo®    Installation Manual 
Page | 18  support@arecontvision.com 
 +1.818.937.0700 | 877.CAMERA.8 | www.arecontvision.com | avsales@arecontvision.com    
AUX I/O use case example 
Arecont Vision AUX I/O
ALARM
IN-
S
D
G
ALARM
OUT+
ALARM
OUT-
+
120V 
100mA
(max)
-
+
Normally
Open/Close
-
0-12VDC 
50mA
(max)
+
-
ALARM
IN+
3.3VO
GND
ALARM-OUT
ALARM-IN
250Ω 










