GTCO AccuTab II - Users Guide - Manual (Page 28)

AccuTab II 28
Sources of Power
GTCO CalComp by Turning Technologies provides a standard wall-mount power supply, for
use with the AccuTab II. If you want to use another wall mount power source due to
different input power requirements, it must supply the following output voltage: 12 to
17VDC at 500mA.
Wall mount power supply with a 2.1 mm monoplug DC connector and positive outside
diameter, 12VDC, 500mA, Center Negative power supply provided with unit.
Advanced Operating Information
AccuTab II Interfacing
Important: The following information is not required for normal AccuTab II operation.
Connecting AccuTab II to a computer is usually straight-forward (see Installing AccuTab II
section in this manual). If you do not have a typical interfacing situation, the information in
this section will help you set up the AccuTab II and connect it to another device.
The AccuTab II is equipped to communicate via RS-232C, a widely used serial interface
between computers and peripherals. RS-232C is a (more or less) 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 the
speed of transmission. Both the AccuTab II and the computer must have identical formats
and rates. These parameters are discussed in the Introduction to the Custom
Configuration Menu section.