ALM board, modems, and DCD problems

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Article #10804

#10804

From: David Hinnant
Date: Wed, 08 Feb 1989 13:26

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We have several Hayes and Telebits connected to a Sun-4/260 running 4.01
with an ALM board.  We have been unable to get Data Carrier Detect to be
sensed by the ALM board and thus kill off your session if you get bumped
off the phone line.  We have rebuilt the kernel with the appropriate flags
(0xfffc instead of 0xffff) to enable modem control on the first 4 ports,
and have "-clocal" on the desired ports.  All 4 ports use what I believe
is the appropriate minor device number for modem control.  Hupcl works OK
so when we log out normally the line drops.  So, I *think* things are
configured properly for model control, but obviously not.  Anyone else
encountered this?

David Hinnant                    UUCP: ...{decvax,akgua}!mcnc!ecsvax!dfh
Bell Northern Research           (919) 991-8299

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!rice!sun-spots-request
From: dfh@uncecs.edu (David Hinnant)
Newsgroups: comp.sys.sun
Subject: ALM board, modems, and DCD problems
Message-ID: <6292@ecsvax.uncecs.edu>
Date: 8 Feb 89 13:26:13 GMT
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Original-Date: 28 Jan 89 01:39:18 GMT
X-Sun-Spots-Digest: Volume 7, Issue 143, message 10 of 16