
Connecting the Camera
9
3
3.2 Audio / Alarm I/O & RS-485 Connection
Pin definition for I/O and RS-485 connection is as below:
Pin
Definition
Pin
Definition
Pin
Definition
Pin
Definition
1
Audio Out
5
Alarm Out B1
9
Alarm In 4
13
GND (Alarm
I/O
& RS-485)
2
GND
(Audio I/O)
6
Alarm Out B2
10
Alarm In 3
14
Audio In
3
Alarm Out A1
7
RS-485 D+
11
Alarm In 2
Def
4
Alarm Out A2
8
RS-485 D-
12
Alarm In 1
Dn
Definition