4
I/O Terminal Block Circuit
I/O Terminal Block Pin Definition
PIN Definition
Description
Max. V/A
1
Ground
-
2
+ 12VDC
12V DC
1.2 W
3
Audio In
Unbalanced, 1.4Vp-p, 1Vrms, terminal block
-
4
Audio Out 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.
100 mA
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
9
RS-485 +
-
10
RS-485 -
-
Содержание B8220
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