Owner`s manual
8
4 CABLING
Correct cables for the serial and parallel ports are vital for error free operation.
A. Serial Ports
Serial ports on the MOD 4C and MOD 4E I/O modules are DTE. Therefore,
crossed cabling is required between the computer's serial port and serial
ports on these modules. A crossed cable is also required between serial
ports on the MOD 4C and MOD 4E I/O modules and the serial port of a
printer or plotter. Serial ports on the MOD 4CF I/O module have DCE ports
and require straight through cabling between these ports and a PC, printer,
or plotter.
B. Parallel Ports
A straight through 25 pin parallel DB-25 male to DB-25 male cable is
required to connect the parallel port of a computer to a parallel port of MOD
4A or MOD 4E I/O module. A standard DB-25 male to centronics printer
cable is required to connect a printer or plotter's parallel port to the parallel
port of MOD 4A or MOD 4E I/O module.
Please see
Appendix A
of this manual for more cabling information.
5 CONFIGURATION MODE
If you need to access configuration mode to change the port designation or serial port
configuration (see Steps 2 and 3 respectively), please see
Section 7
of this manual for
instructions. If not, there is no need to access configuration mode.
NOTE: The easiest way to access configuration mode is to use the supplied utility
created by running the INSTALL program as described in
Section 4.2
of this manual.
This utility is TERM.EXE.
6 PORT SELECTION
NOTE: If you will have only one printer connected and will not be doing any
computer-to-computer communication or modem sharing, you may skip this step.
You must select a printer port in multiple printer applications or a computer port when
computer-to-computer communications is desired. The recommended methods to
send the Port Select Code are:
A. TSR - Select a port from a menu in the memory resident program using hot keys.
See
the README file generated by running the INSTALL program on the
BayTech software utility diskette. When you run INSTALL, a menu titled
"Printer Selection Programs" will appear on your screen. You are given
three selections: RAMEXEC, RAMTSR, and WNDEXEC. Choose
RAMEXEC if your PC runs non-Windows programs that do not operate in
graphics mode. Choose RAMTSR if your PC runs non-Windows programs
that operate in graphics mode. Choose WNDEXEC if your PC runs under
Windows.