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Frequency Generator
A Frequency Generator is necessary in order to use basic
telephones. A Frequency Generator must be connected to
the Power Supply Module of each carrier that contains one
or more Basic Telephone Modules. See page 2-67 for
installation instructions.
General Purpose
Adapter
A General Purpose Adapter (GPA) connects Touch-Tone
(not
rotary) equipment such as modems, autodialers, and
telephone extensions (including cordless telephones) to
voice terminals (Figure 2-31).
MERLIN II
System
control
unit
Analog
General
D8W
voice Purpose
Modem
Terminal
terminal
D8AC
Adapter
D48U
2212C
or PC
cord
cord
cord
RS232-C
Line Other
VT
Tel
Equip
Line Terminal
FIGURE 2-31 A General Purpose Adapter.
Adding Accessories 2-119