Zavio B7210 Quick Installation Manual - page 4
3
I/O Terminal Block Circuit
I/O Terminal Block Pin Definition
PIN
Definition
Description
Max. V/A
1
Ground
-
2
+ 12V DC
12V DC
1.2W
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 Output 2
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.
100mA
24V
7
Digital Input 1
Connected to GND to activate, or leave floating (or unconnected)
to deactivate.
30V DC
8
Digital Input 2
Connected to GND to activate, or
leave floating (or unconnected) to deactivate.
30V DC
Digital Input 1/2:
Max: 30V DC
Digital Output 1/2: Max: 24V / 100mA