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Article #2720Re: "intelli"port problems (DTR drop)
From: Marc T. Kaufman
Date: Tue, 09 Jan 1990 17:06
Date: Tue, 09 Jan 1990 17:06
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1251 bytes
In article <170@norsat.UUCP> dbin@norsat.UUCP (Dave Binette) writes: -In a previous posting i grumbled about the COMPUTONE INTELLIPORT -not disconnecting after my BBS user logged off. -Found the problem! (soooo simple). -The solution then is be sure that the TTY lines are closed and - *most important* -Keep them closed long enough for the DTR drop to be sensed by the modem. -Without the sleep(2) "getty" kicks in too fast and the modem ignores -the very brief drop of DTR. The standard for hangup is to drop DTR for 250ms OR until DSR (from the Modem) drops -- whichever occurs first. 2 seconds is OK, but overkill. Longer sleep is to be discouraged since the phone line won't be answered while DTR is down. Marc Kaufman (kaufman@Neon.stanford.edu)
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<1990Jan9.170632.13160@Neon.Stanford.EDU>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!tut.cis.ohio-state.edu!ucbvax!agate!shelby!neon!kaufmanReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!tut.cis.ohio-state.edu!ucbvax!agate!shelby!neon!kaufman From: kaufman@Neon.Stanford.EDU (Marc T. Kaufman) Newsgroups: comp.periphs Subject: Re: "intelli"port problems (DTR drop) Keywords: aha! fixed, timeout Message-ID: <1990Jan9.170632.13160@Neon.Stanford.EDU> Date: 9 Jan 90 17:06:32 GMT References: <170@norsat.UUCP> Organization: Computer Science Department, Stanford University Lines: 17