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Path: utzoo!mnetor!uunet!pcrat!rick
From: rick@pcrat.UUCP (rick)
Newsgroups: comp.dcom.modems
Subject: Re: Fast (12KBaud) UUCP 'g' transfer rates over Voice-Grade Lines
Message-ID: <368@pcrat.UUCP>
Date: Fri, 14-Aug-87 08:02:28 EDT
Article-I.D.: pcrat.368
Posted: Fri Aug 14 08:02:28 1987
Date-Received: Sun, 16-Aug-87 04:56:57 EDT
References: <192@caeco.UUCP>
Organization: PC Research, Inc., Tinton Falls, NJ
Lines: 19
Keywords: UUCP, ISDN
Summary: HW Handshake


If it's true that some popular workstations can't do hardware
flow control (RTS/CTS), then I suggest that these problems be
corrected in a hurry.  ISDN voice/data telephone systems will
be tested lots of business/university markets in '88.  You wouldn't
want YOUR workstation to be the bottleneck now, would you?

Here's how RTS/CTS is supposed to work:  
	if DTE asserts RTS, it's OK for DCE to send data to the DTE.
	if DTE deasserts RTS, then DCE should stop sending data to the DTE.
	if DCE asserts CTS, then it's OK for DTE to send data to the DCE.
	if DCE deasserts CTS, then DTE should stop sending data to the DCE.
There's no guarantee how fast either end can actually shut up, so it's
best to give yourself some slack (i.e. don't wait until you only can
handle one more character before trying to mute the other side).
-- 
	Rick Richardson, President, PC Research, Inc.
(201) 542-3734 (voice, nights)   OR   (201) 834-1378 (voice, days)
		seismo!uunet!pcrat!rick