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Top Document: comp.unix.aix Frequently Asked Questions (Part 4 of 5) Previous Document: 6.03: IBM's gopher, WWW, aftp presence. See reader questions & answers on this topic! - Help others by sharing your knowledge
Q: How do you connect a terminal to the RS232 tty ports when not using
the standard IBM cable & terminal transposer?
A: 1- Connect pins 2->3, 3->2, 7->7 on the DB25's
2- On the computer side, most of the time cross 6->20 (DSR, DTR).
Some equipment may require connecting 6, 8, and 20 (DSR, DCD, DTR).
Also, pin 1 (FG) should be a bare metal wire and the cable should be
shielded with a connection all the way through. Most people don't run
pin 1 because pins 1 & 7 (SG) are jumpered on many equipment.
When booting from diskettes, the port speed is always 9600 baud. If you
use SMIT to set a higher speed (38400 is nice) for normal use, remember
to reset your terminal before booting.
Q: How do you connect a printer to the RS232 tty ports
A: 1- Connect pins 2->3, 3->2, 7->7 on the DB25's
2- On the computer side, loop pins 4->5 (CTS & RTS)
User Contributions:Comment about this article, ask questions, or add new information about this topic:Top Document: comp.unix.aix Frequently Asked Questions (Part 4 of 5) Previous Document: 6.03: IBM's gopher, WWW, aftp presence. Part1 - Part2 - Part3 - Part4 - Part5 - Single Page [ Usenet FAQs | Web FAQs | Documents | RFC Index ] Send corrections/additions to the FAQ Maintainer: bofh@mail.teleweb.pt (Jose Pina Coelho)
Last Update August 08 2012 @ 06:18 AM
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