Reserve Power Battery Backup Interface - Toshiba Strata DK14 General Description Manual

Reserve Power Battery Backup Interface

On the DK14, an optional battery backup unit is available for the system power supply. The
backup unit (HPFB-6) includes the battery pack and built-in charger and mounts externally. Either
one or two HPFB-6s can be connected. If other types of batteries are used with DK14, they are not
charged by the DK14 power supply.
Customer-supplied 12-volt batteries can be connected to the DK40i or DK424 systems as a power
failure backup system. Batteries are connected to the system's standard power supply by an
optional connector cable. The DK40i and DK424 power supplies provide a built-in battery
charger. Gel-cell maintenance free batteries are recommended.
In the event of a power failure, the system automatically switches to battery power without
interruption. All functions of the Strata system continue to operate for several hours after a loss of
normal electrical power. The exact time period depends on the type and size of batteries used,
system capacity, and traffic (see the Strata DK General Description for details). No calls are
disconnected during the switch to battery power.
During normal power conditions, the batteries are kept fully charged by the system power supply.
Benefits
Ensures that telephone service is not interrupted by a power failure.
Strata DK Feature Description 5/99
System Availability
Optional on Strata DK14/DK40i/DK424
Features
System Features
93