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From: jeff@nsipo.arc.nasa.gov (Jeff Burgan)
Newsgroups: comp.dcom.lans,comp.misc
Subject: Re: Installing Thinwire Ethernet
Message-ID: <25500@ames.arc.nasa.gov>
Date: 17 May 89 19:32:10 GMT
References: <1381@ndmath.UUCP> <723@wsu-cs.uucp>
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Reply-To: jeff@nsipo.arc.nasa.gov.UUCP (Jeff Burgan)
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Organization: NASA Science Internet Project Office
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>Well, one approach you could consider is a multiport repeater.
>I don't have any experience with the thin ethernet version, so I can't
>tell you whether or not you have to terminate the ports when not in use.
>The DEC version is called a DEMPR (sp?) and allows a star topology from
>the device.  
>
>-- 

You don't have to terminate the unused ports on a DEMPR. DEC also
has a box called a DESPR (i.e. single port as apposed to multiport repeater)
On one segment from a port on a DESPR or DEMPR, you are allowed
29 stations and the cable length can not exceed 185 meters. 

Jeff