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VIVOTEK
8 - User's Manual
DI/DO Diagram
Please refer to the following illustration for the connection method�
+12V
Digital input
Ground
12V
Digital output
Power+12V
GND
Camera Power
Input
Output
+12
VDC
Max.
VDC
Switch
BJT transistor
GND
Camera Power
Input
Output
+12
VDC
VDC
Switch
BJT transistor
Relay
Relay
NOTE:
The maximum output load from DO pins is 50mA�
DO+
DO-
DI1+
DI2+
DI3+
DI- (common GND)
RS485-
RS485+
AC/DC pw
AC/DC pw
General I/O Terminal Block
This Network Camera provides a general I/O terminal block which is used to connect external
input / output devices. The pin definitions are described below. The “AC/DC pw” pins can be
used to connect both 24V AC and 12V DC power source�