Modem Pools On Dedicated Outside Lines - AT&T MERLIN LEGEND Data Manual

Planning
See System Planning (Key or PBX),
Chapter 2, for details on system
renumbering.
Modem Pools on Dedicated
Lines
For a modem pool using system lines, assign one digital station jack for each
data module and one basic station jack for each modem.
Planning Form Instructions
Record the station jack assignments for modem pool equipment on System
Form 2a, System Numbering—Station Jacks:
1. In the "Jack Type" column, make sure there is a "D" next to the number for
each digital station jack used to connect an ISDN 7500B Data Module.
2. In the "Person, Location, or Function" column, write "ISDN 7500B—
modem pool."
3. In the "Jack Type" column, make sure there is a "B" next to the number for
each basic telephone station jack you plan to use to connect a modem.
4. In the "Person, Location, or Function" column, write "modem—pool."
Note: System Planning (Key or PBX) describes how to reassign station
extension numbers. The same considerations apply to data stations as those
that apply to voice stations.
To dedicate an outside line exclusively for data communications, you can
bypass the control unit and connect the outside line directly to a modem in a
modem pool. The line is then dedicated for use with that modem pool pair only.
DHG {
008 MLX
STATION
JACKS
44GA4 = TERMINATING RESISTOR
PSU = WP-90110-L1 POWER UNIT, 115 VAC
Figure 3-2

Modem Pools on Dedicated Outside Lines

Modem pools on dedicated lines require only one digital station jack for each
ISDN 7500B Data Module.
Note: Data calls placed using modem pools on dedicated outside lines bypass
the control unit and are not reported by Station Message Detail Recording
(SMDR).
DEDICATED
OUTSIDE
LINES
DIGITAL TO ANALOG
DEDICATED
OUTSIDE
LINES
ANALOG TO DIGITAL
Modem Pools
3-9