NEC Univerge sv8500 Manual page 2617

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Batteries (Optional)

The DRU/DAU usually operates on AC operating power. An optional battery can be supplied to the DRU/

DAU so that the DRU/DAU can continue operations, even if the AC power supply to the DRU/DAU has

stopped. This section explains the method of mounting the battery and the kinds of batteries that can be

How to Mount the Battery

The battery can be mounted inside the DRU/DAU or installed externally. When installing the battery

externally, it must be mounted on the BATT BOX ASSEM. For the location of the BATT BOX ASSEM,

Example Installation of a DRU/DAU Wall

vided by the installer.

SN8063 DREJ-A/SN8064 DREK-A

TERMINAL-RELATED DEVICES

Mounting. The BATT BOX ASSEM must be pro-

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