Date: Thu, 24 Aug 1995 18:39:53 -0700 (PDT) From: Tom Samplonius <tom@misery.sdf.com> To: Joe Greco <jgreco@brasil.moneng.mei.com> Cc: Bill Fenner <fenner@parc.xerox.com>, terryl@cs.stanford.edu, freebsd-hackers@FreeBSD.org Subject: Re: ISDN Anyone? Message-ID: <Pine.BSF.3.91.950824183850.2429B-100000@misery.sdf.com> In-Reply-To: <199508241644.LAA19807@brasil.moneng.mei.com>
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On Thu, 24 Aug 1995, Joe Greco wrote: > > Er, forgive me if I'm being obtuse, but don't you need a higher serial rate > > than 115200 to get full performance out of 2 B channels? > > Yes. You get about 90% cap at 115200. > > However, I challenge you to plug a TA into a standard PC serial port and go > faster than that. :-) (The UTA-220 can't hit 230.4K at this point in time > anyways, so the picture *was* the optimal setup, and a PC serial port can't > go faster with a standard crystal). The Hayes ESP card can do 230.4K, and looks like a regular 16550. Some patches for using the ESP's larger buffers were posted recently. Tom
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