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From: jc@piaget.UUCP (John Cornelius)
Newsgroups: comp.dcom.modems,news.sysadmin
Subject: Re: Hardware Protocol
Message-ID: <419@piaget.UUCP>
Date: Fri, 21-Aug-87 10:26:30 EDT
Article-I.D.: piaget.419
Posted: Fri Aug 21 10:26:30 1987
Date-Received: Sun, 23-Aug-87 04:38:02 EDT
References: <192@caeco.UUCP> <2849@phri.UUCP> <1103@laidbak.UUCP> <1172@geac.UUCP>
Reply-To: jc@inls1.UCSD.EDU (John Cornelius, System Manager)
Organization: Institute for Non-Linear Sciences, UCSD.
Lines: 22
Keywords: RS-232 CTS flow-control
Summary: Check out the manual and the cables
Xref: mnetor comp.dcom.modems:850 news.sysadmin:337

In article <1172@geac.UUCP> daveb@geac.UUCP (Dave Collier-Brown) writes:
 >In article <2849@phri.UUCP> roy@phri.UUCP (Roy Smith) writes:
 >>In article <192@caeco.UUCP> murf@caeco.UUCP (Steve Murphy) writes:
 >>> The Sun 3/160 (and all the sun 2's and the 3/110's also) cannot hardware
 >>> handshake AT ALL. [...] Now, if I worked for Sun, I'd blush, because this is
 >>
 >>	Arghhhhh!  Maybe the reason Sun's RS-232 ports don't do RTS/CTS
 >>handshaking is because if they did, it wouldn't be RS-232.  As defined in the
 >>standard, RS-232 has no flow-control. 
 >
 >Well, I remember programming half-duplex modems, and they did handshake
 
The Systek MTI-16 which is used on the Sun-3/160 does indeed
observe rts/cts flow control and it says so in the manual.  I
have recently connected a plotter to one port of ours and it
works marvelously.  
 
Perhaps you should check your cables.

-- 
John Cornelius
(...!sdcsvax!piaget!jc)