Lucent Technologies MERLIN LEGEND Release 6.1 Maintenance And Troubleshooting Manual page 481

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting 555-661-140
mode codes
modem
modem data
station
modem pool
module
Streams of touch-tone codes used by voice messaging
applications to communicate with the system's control
unit.
Device that converts digital data signals to analog signals
for transmission over a telephone line, and analog signals
received on a telephone line to digital signals.
A type of data station that includes a modem as its DCE. It
may also include an MLX telephone for simultaneous
voice and data (MLX voice and modem data station), an
analog multiline telephone (analog voice and modem data
station), or a single-line telephone for dialing only (modem
data-only station). These data stations connect
respectively to MLX, analog, or tip/ring extension jack
modules. They provide analog transmission of data.
Pair, or group of pairs, of modems and data modules with
interconnected RS-232 interfaces that converts digital
signals to analog, or analog signals to digital, thereby
allowing users with ISDN terminal adapter data stations to
communicate with users who have analog modem data
stations .
Circuit pack in the control unit that provides the physical
jacks for connection of telephones and/or outside
lines/trunks to the communications system. In the name of
a module, the first digit indicates the number of line/trunk
jacks it contains; the last digit indicates the number of
extension jacks it contains. If no letters appear after the
number, a line/trunk module provides loop-start lines or an
extension jack module provides analog or tip/ring jacks.
For example, a 408 GS/LS MLX module contains four
line/trunk jacks and eight digital (MLX) extension jacks,
and provides either loop-start (LS) or ground-start
(GS) trunks.
Issue 1
August 1998
Page GL-25