Connecting The Pc; System Requirements - AT&T MERLIN LEGEND Release 2.0 System Programming And Maintenance Manual

System Programming and Maintenance (SPM)

Connecting the PC

There are three ways to connect the PC to the control unit. Choose the
method that is most useful for your installation:
direct local connection
local modem connection
remote modem connection
These types of connections are described in detail later in this section.

System Requirements

To use SPM to program your system, you need the SPM diskette and an AT&T
PC with version 3.3 (or a later version) of MS-DOS®. Your PC should include
the following:
at least 640 kbytes of RAM
a floppy disk drive that will accommodate the SPM diskette
a monochrome or color monitor
a serial port that can use either a DB-9 or DB-25 connector
NOTE:
For a DB-9 connector, use a 9-pin to 25-pin adapter to convert the
25-pin connector to a modular connector.
an RS-232 interface cable
Also, depending on how you connect the PC to the control unit, you may need
the following:
either a 355AF modular adapter (if there is a male connector on the
interface cable) or a 355A modular adapter (if the connector is female)
a 4-pair modular cord (D8W)
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Connecting the PC