8
DRD-4
3. Installing the DRD-4
To install the DRD-4, you will need
the telephone cable (included) and
an additional cable for each device
you wish to connect to the DRD-4.
If the equipment you wish to
connect to the DRD-4 is not located
near the unit, you may need
extension cables.
3.1 Installing the DRD-4 on a Single
Line
Fig. 2 shows the DRD-4 installed on
a single telephone line.
You can install the DRD-4 on any
system with single- or two-line
phones, including key service unit
(KSU) or private branch exchange
(PBX) multiple-line phone systems.
This chapter explains how to install
the DRD-4 in four different phone
configurations:
• A single line
• A single line that maintains
exclusion
• Two lines with single-line and
two-line phones (with the DRD-
4 connected to one extension)
• A KSU/PBX system
