Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!decwrl!shelby!polya!kaufman
From: kaufman@polya.Stanford.EDU (Marc T. Kaufman)
Newsgroups: comp.sys.mac
Subject: Re: multiple mac displays
Message-ID: <8744@polya.Stanford.EDU>
Date: 25 Apr 89 02:26:53 GMT
References: <2680@cadre.dsl.PITTSBURGH.EDU>
Sender: Marc T. Kaufman <kaufman@polya.Stanford.EDU>
Reply-To: kaufman@polya.Stanford.EDU (Marc T. Kaufman)
Organization: Stanford University
Lines: 13

In article <2680@cadre.dsl.PITTSBURGH.EDU> gw@cadre.dsl.PITTSBURGH.EDU (Gerhard Werner) writes:
>Does anyone have any information on driving multiple duplicate
>displays (i.e. more than one monitor) from a single MacII,
>using the standard Mac video card(s).

No problem, but you can't use the standard cable.  Video signals from the Mac
video card are standard RS-172.  What you need is monitors that have
OPTIONAL 75 ohm termination.  Loop the signal through the monitors, and turn
the termination on for the last one only.  If you are doing this for a class,
you will probably get some 19+" monitors, and they generally have the ability
to loop signal and/or terminate.

Marc Kaufman (kaufman@polya.stanford.edu)