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From: lindberg@chalmers.UUCP (Gunnar Lindberg)
Newsgroups: comp.dcom.lans
Subject: Re: connecting thin ethernet stations to a thick cable
Message-ID: <903@chalmers.UUCP>
Date: Fri, 5-Dec-86 12:29:28 EST
Article-I.D.: chalmers.903
Posted: Fri Dec  5 12:29:28 1986
Date-Received: Wed, 10-Dec-86 11:09:39 EST
References: <1097@uqcspe.OZ>
Reply-To: lindberg@chalmers.UUCP (Gunnar Lindberg)
Organization: Dept. of CS, Chalmers, Sweden
Lines: 22

In article <1097@uqcspe.OZ> timr@uqcspe.OZ (Tim Roper) writes:
>Is there a cheap (reliable) method of connecting a workstation with a
>thin ethernet interface to an existing thick ethernet coax?

The simplest way is to just use N-to-BNC connectors and connect the
piece of thin cable to the thick one. A BNC-Ethernet-terminator is
easily made from four 200 ohm, 1/2 W resitors put in parallell.

We've run with a mixture of 20 m thick and 100 m thin for quite a
while with absolutely no problems! However:

    +	You must scale the max lengths (500 m Thick = 185 m Thin).

    +	If someone disconnects a BNC-connector somewhere, the whole
	net is broken. Active devices, e.g. a DEMPR prevents this.

Good Luck,

	Gunnar Lindberg (lindberg@chalmers.{UUCP,CSNET,SUNET})
	Department of Computer Science
	Chalmers University of Technology
	S-412 96 Gothenburg, SWEDEN