AirLive MD-720 - Manual (Page 13)

2. Package Contents and Installation
AirLive MD-720 User’s Manual 8
I/O Terminal Block Pin Definition
This Camera provides an external I/O terminal block which is used to connect input/ output
devices.
The pin definitions are described below.
PIN Definition Description Max. V/A
1
Ground -
2
+ 5V DC
5V DC
0.5W
3
AUDIO_In(+)
Unbalanced, 1.4Vp-p, 1Vrms, terminal block
-
4
AUDIO_In(+)
Unbalanced, 1.4Vp-p, 1Vrms, terminal block
-
5
Digital Output 1
Uses an NPN transistor with the emitter connected to
the GND pin. If used with an external relay, a diode
must be connected in parallel with the load for
protection against voltage transients.
100 mA
24V
6
Digital Input 1
Connected to GND to activate, or leave floating (or
unconnected) to deactivate.
30V DC