Mounting A Backup Battery In The Enclosure (Optional) - EverFocus EFC304 User Manual

NAV IP Access Controller

2.2.7 Mounting a Backup Battery in the Enclosure (Optional)

You can optionally connect a backup battery in the enclosure to provide backup power to
the controller. Once the battery is installed, it will charge off the external power until it is
needed, at which time it will automatically be used to power the system.
Connecting to the Backup Battery
Connect the wires from the backup battery to the terminal block on the main module.
Connect the positive lead to Pin 15 and negative lead to Pin 16 on the terminal block of
the main module.
Main Module
15 16
+ -
Backup Battery
Figure 2-18
If a backup battery is connected, the controller will automatically switch to backup power
in the event that the external power is lost. The backup battery will charge while external
power is being supplied.
In general, the larger the battery capacity, the longer it can support the controller. A
12AH battery can provide 4 hours of energy for a controller containing 4 door modules,
one alarm module and 8 readers.
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