Path: utzoo!attcan!uunet!mcvax!enea!maxim!prc From: prc@maxim.ERBE.SE (Robert Claeson) Newsgroups: comp.dcom.lans Subject: Re: Thin Ethernet cable ?? Message-ID: <630@maxim.ERBE.SE> Date: 19 Mar 89 22:11:07 GMT References: <750@aber-cs.UUCP> <858@Portia.Stanford.EDU> <9113@j.cc.purdue.edu> Organization: ERBE DATA AB Lines: 31 In article , ron@ron.rutgers.edu (Ron Natalie) writes: > Ethernet segment size for regular Ethernet is 500 Meters, for thin, 200 meters. > A segment is a set of cables joined togther with connectors (i.e. NOT repeaters). > No two stations (transceivers) may have more than 1500 Meters and two repeaters > between them. I've heard about a thing called "inter-repeater link". It should be used instead of a single repeater to connect two segments when they are some distance apart from each other (such as in two different buildings). According to the information I have (from ISOLAN), such a link is made by using a normal repeater on each of the two segments that should be connected to each other and connecting them with a normal ethernet cable. This extra segment (the inter-repeater link) doesn't count as a segment and can be twice as long as a real segment. But -- there must be no other devices connected to it than the two repeaters at each end. seg 1 seg 2 --------- ------------------------- : : +--+--+ +--+--+ : R : : R : +--+--+ +--+--+ : IRL : ============================================ -- Robert Claeson, ERBE DATA AB, P.O. Box 77, S-175 22 Jarfalla, Sweden Tel: +46 (0)758-202 50 Fax: +46 (0)758-197 20 EUnet: rclaeson@ERBE.SE uucp: {uunet,enea}!erbe.se!rclaeson ARPAnet: rclaeson%ERBE.SE@uunet.UU.NET BITNET: rclaeson@ERBE.SE