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Xref: sserve comp.os.linux.development:18514 comp.os.linux.misc:28638 comp.os.386bsd.questions:14182 comp.os.386bsd.misc:3927 sci.electronics:83079 Newsgroups: comp.os.linux.development,comp.os.linux.misc,comp.os.386bsd.questions,comp.os.386bsd.misc,sci.electronics Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!bunyip.cc.uq.oz.au!munnari.oz.au!spool.mu.edu!howland.reston.ans.net!news.sprintlink.net!EU.net!sun4nl!rnzll3!sys3.pe1chl!rob From: rob@pe1chl.ampr.org (Rob Janssen) Subject: Re: 16550 detection Reply-To: pe1chl@rabo.nl Organization: PE1CHL Message-ID: <Cynu1H.Is@pe1chl.ampr.org> References: <CMETZ.94Oct30051603@itchy.inner.net> <SRA.94Oct30162124@rurha-pente.epilogue.com> <CMETZ.94Oct30192816@itchy.inner.net> <CyIzxz.97A@cuug.ab.ca> <TYTSO.94Oct31162517@dcl.mit.edu> <MICHAELV.94Oct31211019@MindBender.HeadCandy.com> <TYTSO.94Nov1182557@dcl.mit.edu> <MICHAELV.94Nov1215132@MindBender.HeadCandy.com> Date: Wed, 2 Nov 1994 21:51:16 GMT Lines: 27 In <MICHAELV.94Nov1215132@MindBender.HeadCandy.com> michaelv@MindBender.HeadCandy.com (Michael L. VanLoon) writes: >At 115200 bps (which is where the high-end modems are going these >days, with some capable of even 230400 bps), it takes only one >thousandth of a second to fill a 16 character FIFO. I have extreme doubts about using an RS-232 interface at 230400 bps... Even 115200 is already way above spec, and can be unreliable with standard cables. Why don't MODEM manufacturers fit their producs with an Ethernet interface, instead of or in addition to the RS-232 interface? Drivers for Ethernet are widely available, and a modem could use a simple DLC protocol that is very easily built on top of a packet driver, ODI MLID, or whatever. Cards are cheap, and many workstations come with it anyway. It is also much easier to connect some modems to a single machine (no troublesome multi-port cards that always have to few ports). This seems like a much better way to go than to provide "enhanced serial cards" for only a single machine architecture and limited number of ports.... Rob -- ------------------------------------------------------------------------- | Rob Janssen | AMPRnet: rob@pe1chl.ampr.org | | e-mail: pe1chl@rabo.nl | AX.25 BBS: PE1CHL@PI8UTR.#UTR.NLD.EU | -------------------------------------------------------------------------