AT&T MERLIN LEGEND Release 3.1 Installation Manual page 80

Installing Multi-Function Modules
Tip/ring (T/R) devices such as single-line telephones, fax machines,
modems, and credit card verification terminals. Once connected, the
MLX telephone and adjunct work independently of each other. This
means they can send and receive calls at the same time. The MFM is
the only T/R adapter you can use with MLX telephones.
Supplemental alerts such as bells, chimes, horns, and strobes. These
alerts notify people in noisy areas of incoming calls.
Considerations
Review the following items before you begin the procedure.
If you install an MFM, do so before you assemble the MLX telephone.
You must connect the KS 22911 power supply to an electrical outlet
within 50 ft. (15 m) of cord length of the MLX telephone.
If you connect an MFM and two DSSs to a telephone, you must install
a 406743419 power unit.
If a wall jack is more than 7 ft. (213 cm) from an MLX telephone, you
must use a longer D8W cord.
The MFM uses one of the two channels when it is active. This means
that when an adjunct, such as a fax machine, and the MLX telephone
are in use at the same time, Voice Announce to Busy is not possible.
(Voice Announce to Busy is a feature that allows users to be paged on
the speakerphone even if they are on a call.)
The MFM has two jumper blocks that are factory-set for T/R operation.
The MFM is packaged with the following items, shown in Figure 3–1:
— KS22911 power supply
— 400B or 400B2 adapter
— D6AP cord
3–2
Installing Telephones and Adjuncts