AT&T MERLIN LEGEND Release 3.0 Installation Manual page 246

MERLIN MAIL
MERLIN MAIL has an EIA-232-D serial port and an external modem to support
remote diagnostics.
You cannot use the first four logical IDs on a 008 OPT module to physically
connect telephone equipment; however, you can use the extension numbers
of these logical IDs for phantom extensions.
Additional touch-tone receivers (TTRs) may be needed for the 012 module. to
handle a large number of voice connections.
The MERLIN MAIL unit can be desk- or wall-mounted and should be placed in
an area with low humidity and proper ventilation.
Follow the power and ground procedures for T/R telephones that require
auxiliary power.
Hardware Requirements
The following hardware is required for MERLIN MAIL installation:
MERLIN MAIL Voice Messaging System unit and power cords
Remote maintenance device (with a wall-mount transformer)
Modem cable with a 9-pin connector at one end and a 25-pin
connector at the other end to connect the remote maintenance device
to the serial port on the MERLIN MAIL Voice Messaging System unit
D4BU modular cords (two for a 2-port system or four for a 4-port
system, plus one for the remote maintenance device)
012 basic telephone module
For more information, consult MERLlN MAIL
MERLIN LEGEND Communications System,
Programming, and Maintenance.
Voice Messaging System for the
Installation, System
Installing Applications 8-19