Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!apple!netcom!gandrews
From: gandrews@netcom.COM (Greg Andrews)
Newsgroups: comp.unix.sysv386
Subject: Re: SCO RTSFLOW (was re: Help Telebit and SCO RTS/CTS Setup)
Summary: Guess we'll just have to disagree
Keywords: RTS/CTS Hardware Flow Telebit RS-232 Unix 386 SCO
Message-ID: <1991Apr9.021511.18935@netcom.COM>
Date: 9 Apr 91 02:15:11 GMT
References: <LVQPHKW@geminix.in-berlin.de> <1991Apr7.024322.4465@netcom.COM> <XYRPT1D@geminix.in-berlin.de>
Organization: Netcom - Online Communication Services  UNIX System {408 241-9760 guest}
Lines: 27

In article <XYRPT1D@geminix.in-berlin.de> gemini@geminix.in-berlin.de (Uwe Doering) writes:
>gandrews@netcom.COM (Greg Andrews) writes:
>
>>I'm afraid that's not the case.  Half duplex data flow is defined as
>>data flow in one direction at a time. 
>>
>
>I don't agree. The term `half duplex' applies to the link between the
>two DCEs, that is, the modems. The link between the modem and the
>computer is, of course, full duplex, as there are individual data lines
>in the cable for receiving and transmitting. 
>

Guess we'll just have to agree to disagree on this one, Uwe.  As I said
earlier, I consider the term "half duplex" to describe the way data flows
through the channel.  Not the way data COULD flow, but the way data DOES 
flow.  The interaction through the RS232 cable would also be half duplex
since that's how the data flows.

I don't have an authoritative reference (EIA or V.24) to check, so I'll
have to leave it at that.

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|  Greg Andrews   |       UUCP: {apple,amdahl,claris}!netcom!gandrews    |
|                 |   Internet: gandrews@netcom.COM                      |
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