Console Port on Microvax2

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Article #3825

#3825

From: Ken Mandelberg
Date: Wed, 18 Mar 1987 16:17

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I was hoping to use the console port on a MicrovaxII
with a port selector. The port selector needs DTR/DCD
to operate properly to work reasonably. (DTR should be
up when the port is available and toggle when the Vax 
drops a session, the Vax should wait for DCD before taking
input from the port).

We use 4.3BSD on the microvax, but I am really asking about
the Vax hardware/firmware, not the OS software. Does the
hardware/firmware have the ability to properly deal with 
DTR/DCD? I can see from the source to the BSD and Ultrix
drivers that there is no such support in the driver. Unlike
the drivers for the terminal multiplexors, the console
driver seems to punt and just issue some native Vax instructions
and let the hardware/firmware do the work.

Please reply with any info by mail. Thanks

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Message-ID: <8703181617.AA20480@emory.eu>

Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!rutgers!ames!ucbcad!ucbvax!EMORY.ARPA!km

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!rutgers!ames!ucbcad!ucbvax!EMORY.ARPA!km
From: km@EMORY.ARPA (Ken Mandelberg)
Newsgroups: mod.computers.vax
Subject: Console Port on Microvax2
Message-ID: <8703181617.AA20480@emory.eu>
Date: Wed, 18-Mar-87 11:17:13 EST
Article-I.D.: emory.8703181617.AA20480
Posted: Wed Mar 18 11:17:13 1987
Date-Received: Fri, 20-Mar-87 05:33:40 EST
Sender: daemon@ucbvax.BERKELEY.EDU
Distribution: world
Organization: The ARPA Internet
Lines: 17
Keywords: DTR/DCD
Approved: info-vax@sri-kl.arpa