Vivotek FD8173-H User Manual page 8

VIVOTEK
DI/DO Diagram
Please refer to the following illustration for the connection method�
DI-
DO+
DI+
DO-
BJT transistor
NOTE:
The maximum output load from pins #7 & 8 is 50mA.
8 - User's Manual
VDC
+12
Switch
VDC
Max.
AC
NO NC
Source
Relay
AC
Device
DI-
DO+
DI+
DO-
BJT transistor
VDC
+12
VDC
Switch
NO AC
NC
Source
Relay
Device
AC