Instruction manual

Auxiliary Components
■
Adapters. Enable the connection of other equipment or certain telephone
company facilities. There are two kinds of adapters, classified according
to function:
—
System Adapters. Connect adjuncts (for example, a loudspeaker
paging system) directly to the control unit and serve the whole
system.
—
Telephone Adapters. Connect adjuncts to telephones. For example,
a Multi-Function Module (MFM) connects an adjunct, such as an
answering machine, modem, fax machine, or special strobe, to an
MLX telephone.
■
Accessories. Different kinds of accessories can be added to the system
to provide more power or additional protection from power surges. There
are three types of accessories:
—
Power Accessories. For example, an Uninterruptible Power Supply
(UPS) for the system or telephone power units to provide additional
power to individual telephones that require them for adjuncts.
—
Protection Accessories. For example, for grounding and protecting
special telephone connections (like a telephone located in a different
building) from lightning strikes and power surges.
—
Miscellaneous Accessories. A power-failure transfer (PFT) telephone
used to make and receive calls in the event of a commercial power
failure or an Off-Premises Range Extender (OPRE) used for a single-
line telephone located in a different building from the control unit and
more than 1000 feet away.
Figure 2–
10 illustrates some of these components. For information about these
accessories, see Chapter 3, “System Components,”
and the Equipment and
Operations Reference .
About the System
2–27