14
DRD-4
3.4 Installing the DRD-4 on a
KSU/PBX System
With a KSU/PBX (commonly used
in medium or large offices), calls
coming in over two or more lines
can be routed to any number of
extensions. A KSU typically features
call holding, music-on-hold,
conference calling, and Intercom
paglng.
Fig. 3-5 shows the DRD-4 connected
to a KSU phone system. For the
DRD-4 to operate correctly with such
a system, you must install it in front
of the KSU or PBX—directly to the
incoming phone line (the last line in
rollover). You must connect all other
devlces on that line (TAD, KSU, fax,
auxilliary device) directly to the
DRD-4.
NOTE: To complete this installation, you
must be familiar with KSU/PBX
wiring.
