Networking Capabilities - AT&T MERLIN LEGEND System Reference Manual

System Overview
System Features for Data
Communication

Networking Capabilities

Control Unit to Control
Unit
1-16 Capabilities
The following features are available to data station users through the
communications system software:
Modem Pool allows data communications between digital and analog data
stations.
Data Hunt Group allows users to reach a group of similar (analog or digital)
data stations or a group of one or more modem pool pairings via a common
extension number.
Account Code Entry allows tracking of outgoing data calls for report used
for billing, forecasting, or budgets.
Auto Answer All is used when an analog data station is connected to an
analog multiline telephone via a General Purpose Adapter. It allows a modem
with automatic answering capability to answer data calls when the user is
away from the station.
Data Status is used when a data station includes an analog multiline or MLX
telephone. It monitors when data equipment is in use.
Privacy prevents loss of data by ensuring that data transmission is not
interrupted accidentally. Privacy for data calls is provided automatically on
digital data stations but must be manually activated on analog data stations.
System Speed Dial and Personal Speed Dial permit quick dialing of
frequently used numbers.
The system can connect to another system via the two control units or via tie
trunks.
This system's control unit can connect to another system's control unit in three
ways:
from an off-premises telephone (OPT) line to a loop-start line/trunk (or vice
versa) via analog facilities
via an analog tie trunk connected on a 400EM module
via a digital emulated tie trunk on a DS1 facility connected on a 100D module
programmed for T1 type transmission. A back-to-back connection from one
DS1 facility to the other can be used when the total cable distance is fewer
than 1300 feet.
OPT/Loop-Start Connection
A 008 OPT module on system A's control unit can be connected to a loop-start
port on system B's control unit. This enables the user on system B to access all
the stations and facilitiess on system A. If system B has remote access, the user
on system A can directly access stations and facilities on system B without
operator intervention. Conversely, a loop-start port on system A can be
connected to an OPT port on system B.
Note: If the systems are on the same premises, the connection can be made to
any T/R port.