Nortel QMT12 ADM, Руководство пользователя

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Equipment description Page 41 of 80
Meridian Data Services Description
PC Interface Card
The Personal Computer Interface Card (QPC512) permits connection of an
IBM Personal Computer or IBM Personal Computer XT directly to the
Meridian 1 with standard twisted pair wiring. The card installs easily in the
Personal Computer, allowing the computer to be connected to the Meridian 1
through a standard TELADAPT wall jack and the QPC430 AILC. The PC
may then access local and remote terminals, personal computers, other
computers, and databases using the Meridian 1 networking capability. The
card transmits data to the AILC using the RS-422 data standard and functions
with any Meridian SL.
The Personal Computer Interface Card User Guide (P0641829) provides
installation and operating information.
Note: The Crosstalk XVI software is available as an option for use with
the QPC512.
Protocol Converters
IBM users have traditionally been locked in to IBM. This meant that the 3270
family of display and controllers and coaxial cable distribution was necessary
to access IBM hosts. Communication with non-IBM hosts from IBM Systems
34, 36, 38, and IBM 3270 terminal equipment was very difficult or
impossible.
The Meridian 1 family of Protocol Converters are devices that enable ASCII
terminals, printers and personal computers to communicate with IBM
computers. Different makes and types of terminals can now be used in the
IBM environment.
The System 36 Gateway and 3270 Protocol Converter provide a flexible,
cost-effective alternative to an IBM system of dedicated terminals and
controllers. In addition, the Hunting, Autodial, and Ring Again Meridian 1
data features may be used in establishing the data calls.