GeoVision GV-AS2120 IP Control Panel - Manual (Page 193)

Optional Devices
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9
9.1.4.F Connecting Backup Battery
You can connect any 12V battery to GV-ASBox to provide backup power when the main
power supply fails. When the main power supply is removed and the battery voltage level is
above 10.2V, the battery will support normal operation of the GV-ASBox.
Black
Red
Default
+
_
Battery
Battery
12V 12Ah
Figure 9-7