10
DRD-4
NOTE: With the installation shown in Fig. 3-
1, calls will only be routed to phones
connected directly to the DRD-4.
Phones not connected directly to
the DRD-4 will ring with each ring
cadence and will be able to interrupt
any call. For total automatic
operation and protect against
interruption, install the DRD-4 as
shown in Figure 3-2.
3.2 Installing the DRD-4 on a Single
Line with Multiple Phones and
Maintaining Exclusion
When you connect the DRD-4 to a
single line with multiple phones, you
may want to maintain exclusion.
Exclusion means that if one phone
line is in use and you pick up a
phone on another line. the first
phone line is not interrupted and
you get a busy signal. To maintain
exclusion, the incoming phone line
must terminate at the DRD-4, and all
phones must connect to the DRD-4
ports. See Fig. 3-2.
NOTE: You should be familiar with
telephone wiring to complete this
installation. Call Technical Support
for instructions or contact a
professionai installer.
