AHD Mobile DVR Hardware User Manual T4
5
4.1 Power interface
Figure 4.
Power interface definition
4.2 I/O Interface definition
Figure 5.
Front view of I/O Interface
I/O Interface definition
PIN
Color
Definition
PIN
Color
Definition
1
Blue
Alarm output
2
Black
GROUND
3
Purple
Alarm IN2_POS
4
Purple
Alarm input 1
5
Purple
Alarm IN4_POS
6
Purple
Alarm input 3
7
Red
5V OUTPUT
8
White TXD (TTL electrical
level)
9
Grey
IR extension
10
Yellow RXD(TTL electrical
level)
4.3 Aviation interface definition
