Message-ID: <6893@watrose.UUCP>
Date: Mon, 30-Jul-84 14:30:47 EDT
Article-I.D.: watrose.6893
Posted: Mon Jul 30 14:30:47 1984
Date-Received: Tue, 31-Jul-84 00:37:30 EDT
Organization: U of Waterloo, Ontario
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Does anybody knows how to interface the Mac to Vax 11/780
(Unix 4.2BSD) without the use of a modem?

Can I just connect the RS-232C from the Vax 11/780 to
the Mac?

Message-ID: <1102@hao.UUCP>
Date: Mon, 6-Aug-84 08:54:30 EDT
Article-I.D.: hao.1102
Posted: Mon Aug  6 08:54:30 1984
Date-Received: Tue, 7-Aug-84 05:20:53 EDT
References: <6893@watrose.UUCP>
Organization: High Altitude Obs./NCAR, Boulder CO
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[]
You can connect the RS-232 port directly to the serial port of the Mac.
Of course you'll need a special cable (as if there were such a thing as
a standard RS-232 cable).  Use the pinouts found in macTEP, but swap
pins 2 & 3 on the DB-25 side.  You might also have to connect pin 2  (+5v)
on the DB-9 to pin 6 (Data Set Ready) on the DB-25.  As in all cases when
connecting two devices for the first time, be prepared to experiment.


-- 
Michael Ward, NCAR/SCD
UUCP: {hplabs,nbires,brl-bmd,seismo,menlo70,stcvax}!hao!sa!ward
ARPA: hplabs!hao!sa!ward@Berkeley
BELL: 303-497-1252
USPS: POB 3000, Boulder, CO  80307

Message-ID: <1030@dciem.UUCP>
Date: Tue, 7-Aug-84 09:43:26 EDT
Article-I.D.: dciem.1030
Posted: Tue Aug  7 09:43:26 1984
Date-Received: Tue, 7-Aug-84 14:18:34 EDT
References: <1102@hao.UUCP>
Organization: D.C.I.E.M., Toronto, Canada
Lines: 20

****************
You can connect the RS-232 port directly to the serial port of the Mac.
Of course you'll need a special cable (as if there were such a thing as
a standard RS-232 cable).  Use the pinouts found in macTEP, but swap
pins 2 & 3 on the DB-25 side.  You might also have to connect pin 2  (+5v)
on the DB-9 to pin 6 (Data Set Ready) on the DB-25.  As in all cases when
connecting two devices for the first time, be prepared to experiment.


Michael Ward, NCAR/SCD
****************
I haven't found it necessary to alter the pin connections. The same cable
works fine. Maybe it is a question of selecting the right "Communication"
parameters out of the "Settings" menu in MacTerminal. Use "Other Computer"
rather than "Modem".
-- 

Martin Taylor
{allegra,linus,ihnp4,floyd,ubc-vision}!utzoo!dciem!mmt
{uw-beaver,qucis,watmath}!utcsrgv!dciem!mmt