GTCO Super L III - Users Guide - Manual (Page 37)

Super L III 37
Advanced Operating Information
Super L III Interfacing
NOTE: The following information is not required for normal Super L III operation.
Connecting Super L III to a computer is a simple operation (see the Installing Super L III
section in this manual). If you do not have a typical interfacing situation, the information in
this section will help you set up the Super L III and connect it to another device.
Super L III is equipped to communicate via RS-232C, a widely used serial interface between
computers and peripherals. RS-232C is a standard interface, and cables and connectors
are available from a variety of sources. Most computers and peripherals either have an RS-
232C interface or can be equipped with one.
A mini-tutorial on RS-232C interfacing
This section provides basic information about RS-232C communications. There are three
areas to consider when using RS-232C:
 Character Format and Baud Rate
 Cabling
 Flow Control
Character Format and Baud Rate
Character format and baud rate govern how bits are assembled to form characters and the
speed of transmission. Both Super L III and the computer must have identical formats and
rates. These parameters are discussed in the Introduction to the Tablet Configuration
Utilities section.
Cabling
Cabling carries the data from one device to the other. A majority of RS-232C cables have
either male 9-pin or 25-pin subminiature D connectors on their ends to match female
connectors on the equipment. Super L III is supplied with an 8-pin-mini-din-to-9-pin-D
serial cable and a 9-pin-to-25-pin adapter.