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Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!husc6!cfa!wyatt
From: wyatt@cfa.UUCP
Newsgroups: comp.dcom.lans
Subject: Re: Re: Cheapernet survey
Message-ID: <503@cfa.cfa.harvard.EDU>
Date: Fri, 10-Apr-87 16:03:34 EST
Article-I.D.: cfa.503
Posted: Fri Apr 10 16:03:34 1987
Date-Received: Sat, 11-Apr-87 18:06:25 EST
References: <6389@bu-cs.BU.EDU>
Organization: Harvard-Smithsonian Ctr. for Astrophysics
Lines: 21

>>Some of the problems with thin wire that we (the Univ.) see are that
>>the cost of a thin wire repeater (DEC's DEMPER) is around 10 times
>>that of a thick wire version (DEC's DELNI).  For example a DELNI is,
>>and this is REAL rough, around $800 while a DEMPER is around $8000.
>>
> DEMPRs don't cost that much today.  You may have been forced to buy a
> bridge to go with your DEMPR until recently since that was the only
> configuration that DEC could guarantee would work.  Cabletron's DEMPR
> is $2795.00 list.  I am sure DEC is in that range too.  I hear that

A second point - DELNI's are not repeaters - they are fan-out boxes 
for transceivers. A DEMPR (or its equivalent) handles up to eight different
segments of thinwire, each up to 185 meters, and repeats all of them onto
the main cable. The boxes are not equivalent.
-- 

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