*BSD News Article 38075


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From: mbarkah@slate.mines.colorado.edu (Ade Barkah)
Subject: Re: 16550 detection
Message-ID: <1994Nov20.071802.82073@slate.mines.colorado.edu>
Date: Sun, 20 Nov 1994 07:18:02 GMT
References: <CMETZ.94Oct30051603@itchy.inner.net> <MICHAELV.94Nov1215132@MindBender.HeadCandy.com> <TYTSO.94Nov2113942@dcl.mit.edu> <JKH.94Nov2210122@freefall.cdrom.com> <Cyp34w.MxC@bonkers.taronga.com> <3a8u29$mi@awfulhak.demon.co.uk> <CzF7qx.9yH@indirect.com> <1994Nov18.082900.12223@slate.mines.colorado.edu> <3akesk$e0p@tadpole.fc.hp.com>
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Bob Myers (myers@fc.hp.com) wrote:
: Ade Barkah (mbarkah@slate.mines.colorado.edu) wrote:
: > Actually, I don't even think for 2400 bps modem 1 baud==1 bps.
: > If I remember, the 2400 bps modems already use quadrature
: > amplitute modulation (qam) encoding, with 600 baud/s at 4 bits 
: > per baud.

: Just a minor nit to pick here - there's no such thing as "baud/sec".
: Baud rate is given in baud, which is the information transfer rate
: in SYMBOLS per second.  You can properly refer to a "2400 baud"
: interface, but NOT a "2400 baud/second" interface.

Whoop, you're probably right. Been out too long from school. =)
With QAM, 2400 bps modems are running at 600 baud, with 4
bits per symbol.

Thanks,

-Ade Barkah