Data Interface Unit - Comdial DSU II User Manual

Other Features

Data Interface Unit

The Data Interface Unit, or DIU, is an optional external device that may be part
of your system installation. It provides connections for both your telephone and
an IST device such as a standard single-line telephone, a FAX machine, a data
modem, a cordless telephone, or an answering machine.
If the installer has arranged your station in this manner, you can switch between
your telephone and the IST device by pressing the DATA button that the installer
has programmed on your telephone. The light associated with the DATA button
provides status indications for your reference.
Flashing Red
To select your telephone if the DATA light is on or is
flashing,
PRESS the DATA button. If a call is in progress on the IST device, it
transfers to your telephone if you have your telephone handset lifted
or have your telephone in speakerphone mode. If you do not, the call
drops.
To select the IST device if the DATA light is off,
PRESS the DATA button. If a call is in progress on your telephone,
it transfers to the IST device if the device is off-hook; otherwise, the
call drops. Your telephone still provides visual messages and indica-
tions even though its voice path is routed to the IST device.
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DATA Light
OFF Your telephone is selected for operation
On Green Your IST device is selected but is idle
On Red Your IST device is selected and is busy
Telephone Status
Your IST device is ringing
LCD Speakerphone Station User's Guide
GCA70-281