AT&T 7400B Plus User Manual page 21

DEFINITY Communications System
7400B Plus Data Module
User´s Guide
About the Terminal Device
Selecting an EIA-232-D
Cable
Selecting DCP Cords
The 7400B Plus operates with any asynchronous data terminal
device that has an EIA-232-D (or RS-232-C) interface. If you are
using a PC as your terminal, you will need a suitable PC
communications package. EIA-232-D cables and PC
communications packages are described in the following
paragraphs.
You must set the appropriate configuration options before
connecting the 7400B Plus to a printer or plotter. To do this,
connect a data terminal or PC to Port 1 of the 7400B Plus, change
and store the necessary configuration parameters, remove the data
terminal or PC, and then connect the printer or plotter. The
configuration parameters used for this type of operation are
described in the section, Remote Site Use in Chapter 3,
"Configuration and Operation."
Select an EIA-232-D with a male connector at one end to connect
with the Port 1 connector of the 7400B Plus, and a connector of the
appropriate ''gender'' at the other end to connect to the
communications port of your terminal device.
Note: Cables with the earlier RS-232-C designation will also
work.
The most common EIA-232-D cables are supplied with a male
connector at both ends. If you have this type of cable and the
EIA-232-D port on your terminal device is a male connector, you
can use a cable adapter commonly referred to as a ''gender
changer''. Otherwise, obtain an EIA-232-D cable that has the
appropriate gender connector at each end to fit your application
needs.
The 7400B Plus is supplied with a 7-foot D8W cord. Use this, or
obtain the appropriate length D8W telephone cord for DCP
connection between the 7400B Plus and the PBX wall jack. If you
are using the with-telephone option, you will need a second D8W
telephone cord to connect between the 7400B Plus and your
telephone or voice terminal.
CHAPTER 2: INSTALLATION
Page 2-7