Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!husc6!rutgers!aramis.rutgers.edu!hobson From: hobson@aramis.rutgers.edu (Kevin Hobson) Newsgroups: comp.os.vms Subject: Re: WANTED Inexpensive ethernet thinwire repeater. Message-ID: <1467@aramis.rutgers.edu> Date: Wed, 9-Sep-87 15:26:03 EDT Article-I.D.: aramis.1467 Posted: Wed Sep 9 15:26:03 1987 Date-Received: Fri, 11-Sep-87 04:45:43 EDT References: <12333238962.18.SKINNER@DREA-XX.ARPA> Organization: Rutgers Univ., New Brunswick, N.J. Lines: 58 In article writes: > Path: aramis.rutgers.edu!rutgers!ucla-cs!zen!ucbvax!DREA-XX.ARPA!SKINNER > From: SKINNER@DREA-XX.ARPA (Bruce) > Newsgroups: comp.os.vms > > > I have a local area VAXCluster consisting of a '750 and a > uVAXII. I am intending to ad a VAXstation 2000 to this LAVC. > The '750 and uVAXII are both on a DELNI which is hooked to our > standard baseband (thickwire) ethernet. > > The VAXstation has a thinwire ethernet port. DEC wants to > sell me a baseband to thinwire repeater (DEMPR) for $4320 (Cdn) > just to hook this little rascal up. ... > Who manufactures an inexpensive baseband to thinwire > repeater? Even names and addresses (phone numbers) of ethernet > hardware manufacturers would give me someplace to start. Cabletron Systems Inc. P.O. Box 6257 East Rochester, N.H. 033867-6257 (603)332-9400 MT-500-01 Transceiver with user selectable "heartbeat" (In other words, can be use as Ethernet Version 1, 2, or IEEE 802.3 transceiver) MT-500-03 Same as above with intrusive BNC-Series tap for use with Thin Ethernet Coaxial Cable (In other words, this device with MT-500-01 or local repeator (LR-2000) and transeiver cable should help you) LR-2000 Local Repeator (DEC DELNI-equivalent) MR-9000C Multiport Repeator (DEC DEMPR-equilvalent) We use a combination of these products around the campus. The major advantage of these devices is the little LEDs on each box to indicate activity of the network and connection. Thick_net has 500 meter maximum limit, while thin_net has a 200 meters maximum limit. For every meter of thin_net cable attach to your network, count it as 3 meter of thick_net [Total (max. 500) = (thin_net*3) + thick_net]. The only way to get around this of maximum is to use repeators. Good luck. -- - Kevin Hobson - ARPA: hobson@rutgers.edu - UUCP: {ames, seismo, harvard, ucla-cs, cbosgd, moss}!rutgers.edu!hobson - BITNET: hobson@cancer.bitnet - Rutgers University, New Brunswick, NJ 08903 (201) 932-2260 (201) 932-5027