rogerj@theory.tn.cornell.edu (Roger Jagoda) (12/15/90)
Fellow netters, Sorry to interrupt this greast discussion about Novell, 802.3, etc., but I want to interject a problem here that some of you probably have dealt with over these years and may be able to help with. Despite the fall of workstation prices and PCs, we still have a lot of uses for dumb ASCII terminals over RS232 lines...also modems via that same route. SOOOOoooo, we make use of TCP/IP terminal servers (this campus uses ANNEX from Xylogics, but there are others...opinions?). Anyway, the question is that there are no real manuals for RS232. To learn TCP/IP most of us read Commer's Book (an EXCELLENT reference!). So my question, has anyone come across or used or found a good RS232 reference that explains how to use a breakout box and what it means to "set DTR high" or "follow RTS signals"? It's unfortunate, but especially with data collection equipment, most experiments only allow for RS232 interfacing, not TCP/IP (when was the last time you called up National Instruments and looked into a board with an 802.3 interface that supports sockets, ftp, telnet, etc.). It's really unfortunate, but I guess we're stuck with RS232 for a while. Besides, aren't there times when you just want to log in and check your mail or messages....or faxes....well, you get the idea. Thanks in advance! Naturally, I will re-post the book/ref list if there's anything worthwhile in the response. --------------------------------------------------------------------------- Roger Jagoda -- A wise man adapts Laboratory for Plasma Studies himself to a changing world. Cornell University -- A foolish man tries (607) 255-6115 to force the world to adapt to roger@ionvax.tn.cornell.edu him. --------------------------------------------------------------------------- -- ------------------------------------------------------------------------- Roger Jagoda -- My employers don't even like paying Cornell University me, let alone accept responsibility fqoj@cornella.cit.cornell.edu for anything I say or do! --
fyl@ssc.UUCP (Phil Hughes) (12/18/90)
In article <1990Dec14.161318.16321@batcomputer.tn.cornell.edu>, rogerj@theory.tn.cornell.edu (Roger Jagoda) writes: > Fellow netters, > > Sorry to interrupt this greast discussion about Novell, 802.3, etc., but > I want to interject a problem here that some of you probably have dealt > with over these years and may be able to help with. Despite the fall > of workstation prices and PCs, we still have a lot of uses for dumb > ASCII terminals over RS232 lines...also modems via that same route. > SOOOOoooo, we make use of TCP/IP terminal servers (this campus uses > ANNEX from Xylogics, but there are others...opinions?). Anyway, the > question is that there are no real manuals for RS232. << First, vested interest warning: I wrote this card >> I have been working with RS-232 for about 20 years and finally got sick of there never being a concise reference for what you really need to know (or what people ask me). I have looked a numerous books and they generally tell you too much about what you don't care about (like scope patterns of distorted waveforms) and not enough about what signals are on the pins what what to do with them. So, I wrote an 8-page card that, I think, does a good job. Here is the story: RS-232 Reference Card ISBN 0-916151-42-5 Price: $3.00 Published by: SSC P.O. Box 55549 Seattle, WA 98155 (206) 527-3385 or FOR-UNIX We (SSC) publishes a whole bunch of UNIX, C and "other" computer related pocket-sized references and tutorials. -- Phil Hughes, SSC, Inc. P.O. Box 55549, Seattle, WA 98155 (206)FOR-UNIX uunet!pilchuck!ssc!fyl or attmail!ssc!fyl (206)527-3385