GeoVision GV-AS2120 IP Control Panel - Manual (Page 80)

78
3.2.3 Connecting Output Devices
GV-AS120 supports 1 type of output: Door outputs, e.g. electronic lock
The table below shows the wire assignments of output connectors on GV-AS120.
Wire color Definition
Purple Door COM
Orange Door NC
Gray Door NO
Check if your output device meets the following absolute maximum ratings before
connecting it to the Door outputs.
Breakdown Voltage
250V AC, 220V DC
Continuous Load Current
1A (30V DC), 0.3A (125V AC)
Note:
Absolute Maximum Ratings are those values beyond which damage to GV-
AS120 circuit board may occur. Continuous operation of GV-AS120 at the absolute
rating level may affect GV-AS120’s reliability.
To connect an output device:
The example below illustrates the connection of a locking device to GV-AS120. Connect the
(+) point on the locking device to the Door COM wire on GV-AS120, connect the two (-)
points of the locking device and the external power supply together, and connect the (+)
point on the external power supply to the Door NO or Door NC wire on GV-AS120 based on
the state of the locking device.
Locking Device
Purple, Door COM
Gray, Door NO
Orange, Door NC
External
Power
Supply
-
+
+
-
Figure 3-5