
Battery Backup (Chassis, Cable, and Batteries)
Battery back-up assemblies that include chassis, cable, and battery are available as optional kits (through
normal distribution from Comdial). The battery back-up assembly connects directly to the battery interface
connector on the system main power supply.
Battery Backup Interface
Attach a Comdial-provided optional battery backup kit to the FXT for full uninterruptable system power in case
of an AC power loss. (When installers connect a battery back-up assembly to the system, they must first
connect AC voltage to the power supply and set the AC power switch to ON.) The switching and trickle charge
circuitry are in the common equipment power supply assembly, but batteries, chassis, and cable are packaged as
a separate option. When the installer plugs the system into an active AC power source, the common equipment
power supply will constantly charge the attached batteries with a trickle current. Built-in circuitry automatically
switches to battery power when AC power is lost. With batteries at full charge, a fully loaded system (without
expansion cabinets) will remain fully functional for a minimum of one hour without AC power.
Block Programming
An installer can assign the programmed features of a particular line or station, to other lines or stations. He or
she can also assign a particular arrangement of button functions (mapped buttons) of one telephone to a quantity
of other telephones. This feature eliminates the need to individually program every station class of service, line
and/or button function.
Busy Button Inquiry
This feature provides the user with a means to identify both a station that is busy on a line and the line the
station is busy on as well. The system presents the identified line or station information on the user’s telephone
display for 10 seconds after he or she requests that information. If the system installer has not given the user’s
telephone this feature, the system presents busy information to the display without identifying the line or station
involved.
Button Mapping
Refer to the discussion titled, Full Button Programmability Of Features, Programmable Button Flexibility, and
Square/Non Square Configuration.
Button Query
The button query feature allows users to display the function of programmable buttons on LCD telephones.
General Description 6 – 17
General Description GCA40–215
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