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From: guy%gorodish@Sun.COM (Guy Harris)
Newsgroups: comp.dcom.modems
Subject: Re: Partial RS-232 Solution
Message-ID: <27459@sun.uucp>
Date: Tue, 8-Sep-87 20:14:13 EDT
Article-I.D.: sun.27459
Posted: Tue Sep  8 20:14:13 1987
Date-Received: Thu, 10-Sep-87 05:42:16 EDT
References: <377@grand.UUCP>
Sender: news@sun.uucp
Lines: 14
Keywords: RS-232

> 	As you make the adaptors, label them M-DTE, M-DCE, F-DTE, F-DCE,
> 	or whatever specialized name goes with a weird device that
> 	doesn't fit in these catagories, such as the Sun "MTI" 16-port
> 	multiplexer, which uses pin 6 for what it should be doing with
> 	pin 8.

Or, more correctly, what it *would* be doing with pin 8 1) had Signetics not
decided to do us the "favor" of having their 2661 chip *always* shut off the
receiver when CD drops or 2) had Systech (the people who make the MTI) provided
some way of forcing the chip's notion of CD high so that the state of the CD
wire would be irrelevant.
	Guy Harris
	{ihnp4, decvax, seismo, decwrl, ...}!sun!guy
	guy@sun.com