GeoVision GV-AS2120 IP Control Panel - Manual (Page 96)

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4.2.2 Connecting Input Devices
Up to 8 input devices can be connected to GV-AS210 / 2110 / 2120. Connect the input wires
to
DI1~8
and connect GND wires to
com.A
or
com.B
. Multiple GND wires can be connected
to the same com.A/B interface.
All inputs are
dry contact
that can be configured as normally open (NO) or normally closed
(NC) on the Web interface. To change the input status, refer to
8.2.6 Input Configuration
.
DI1
DI2
DI3
DI4
com.A
com.A
DI5
DI6
DI7
DI8
com.B
com.B
Input
Device
GND
IN
Figure 4-5