Date: Sun, 28 Jan 1996 23:50:12 -0800 (PST) From: John-Mark Gurney <gurney_j@nike.efn.org> To: Heikki Suonsivu <hsu@clinet.fi> Cc: Terry Lambert <terry@lambert.org>, Heikki Suonsivu <hsu@clinet.fi>, hm@altona.hamburg.com, freebsd-hackers@FreeBSD.ORG Subject: Re: Multi-Port Async Cards Message-ID: <Pine.NEB.3.91.960128234003.9518I-100000@nike.efn.org> In-Reply-To: <199601290138.DAA07721@katiska.clinet.fi>
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On Mon, 29 Jan 1996, Heikki Suonsivu wrote: > > Terry Lambert writes: > > > mgetty would be useful as it can > > > actively reply calls instead of modems answering automatically, thus > > > avoiding callers getting modem answer when the terminal server has crashed > > > and won't be there. > > > > A properly configured modem and getty will do this as well. > > > > A properly configured modem will not answer unless DTR is asserted. > > > When the open count coes from 1->0, the DTR is dropped. This causes a > > correctly configured modem to reset (reset on on-to-off transition of DTR). > > Rockwell chipset based modems (all the ones I have seen) don't have DTR > option which would allow this. It can either reset itself when DTR goes > off (&D3), but then it will answer the phone even when DTR is off. If it > does not reset itself (&D2), it works correctly with DTR. The lesson is > not to use rockwell based modems, but they didn't have much competition > until last six months. well... the rockwell based modems that I have (the supra line) all support the dtr high to low to reset... just do a simple &d3... this will have the modem do a soft reset (atz) on dtr loss... this is on both the 14.4k and the 28.8k modems of supra.... John-Mark gurney_j@efn.org Modem/FAX: (503) 683-6954 (FreeBSD Box) Live in Peace, destroy Micro$oft, support free software, run FreeBSD (unix) GCS/M/Sd#h+s+!gau-a--w++++vC+++++UF++++P---E---N++W---M--V--Y+t+5++G+b+D++ B----eu+h++!f++n---- CD5OUF++++.L-------2W.DM----N.9---NET2SP3s.2,4s.,4d.2,6---
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