Link Communications RLC-4 User Manual

1-8
RLC-4 V1.79 Copyright © 1998 Link Communications Inc. 9/18/98
cable again. If you still can't get it to echo, unhook the cable from the computer and try shorting
pins 2 and 3 together on the serial port right at the computer, eliminating the cable as a possible
problem. Again, you should see whatever you type appear on the screen. If you don't, the problem
is in the computer or how you have the comm program set up. Once you get it to echo with the
jumper wire at the computer, hook up the cable to the computer and try the jumper wire at the
other end of the cable. If that doesn't work, the problem is in the cable. Finally hook the cable
back up to the controller and try again. If the characters echo but don't work, you may be in 7 bit
mode rather than 8 bit mode. If all else fails, write down how your cable is wired and call Link
Communications for help. After you get it working, see Appendix F for information about
controlling from the serial port.

Link Communications RLC-4 Specifications

General

Brand	Link Communications
Model	RLC-4
Category	Controller
Language	English