From owner-freebsd-questions@FreeBSD.ORG Wed Jul 15 21:39:09 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0FD3A10656BD for ; Wed, 15 Jul 2009 21:39:09 +0000 (UTC) (envelope-from mikel.king@olivent.com) Received: from mail.olivent.com (mail.olivent.com [69.31.85.206]) by mx1.freebsd.org (Postfix) with ESMTP id A06F68FC1F for ; Wed, 15 Jul 2009 21:39:08 +0000 (UTC) (envelope-from mikel.king@olivent.com) Date: Wed, 15 Jul 2009 17:38:33 -0400 Received: from [68.246.187.247] ([68.246.187.247]) (authenticated user mikel@olivent.com) by mail.olivent.com (Kerio MailServer 6.7.0) (using TLSv1/SSLv3 with cipher RC4-MD5 (128 bits)); Wed, 15 Jul 2009 17:38:30 -0400 Mime-Version: 1.0 X-Mailer: SnapperMail 2.3.4.01 by Snapperfish To: "David Kelly" , "Michelle Konzack" Message-ID: <4884-SnapperMsgFC8D8BD2C683FCD7@[68.246.187.247]> In-Reply-To: <20090715210752.GE16489@Grumpy.DynDNS.org> References: <20090715194718.GA16401@Grumpy.DynDNS.org> From: mikel.king@olivent.com Cc: freebsd-questions@freebsd.org Subject: Re: 5000' ethernet? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: mikel.king@olivent.com List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 15 Jul 2009 21:39:10 -0000 <20090715202734.GH29667@tamay-dogan.net> <20090715210752.GE16489@Grumpy.DynDNS.org> From: Mikel Date: Wed, 15 Jul 2009 17:38:21 -0400 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit David, You can run upto 1.5 miles on a lx fiber based solution but will likely require a skilled installer to setup that much cable for you. Depending on your locale I am may be able to put connect you to a supplier. Have you considered a wireless direct beam solution? Especially considering the 'temporary' nature of this install. ___ Cheers, Mikel King CEO, Olivent Technologies follow-me http://twitter.com/mikelking ...... Original Message ....... On Wed, 15 Jul 2009 16:07:52 -0500 "David Kelly" wrote: >On Wed, Jul 15, 2009 at 10:27:35PM +0200, Michelle Konzack wrote: >> Hello David, >> >> Am 2009-07-15 14:47:18, schrieb David Kelly: >> > Not directly FreeBSD related, but how much of a chance is there that two >> > machines could communicate directly over 5,000 feet of cat5 with no >> > special hardware? >> >> I do not know hoe much a feet is in meters but AFAIK arround 0,3 which >> mean, you are talking about 1.5km or 1 mile ? > >Yes, roughly a mile which is 5280 feet. Maybe less, but no more than a >mile. Won't really know until I get there and start running cable. > >> There are inexpensive FiberOptic Transponder (I am using a bunch of >> it from Transmode for my CWDM 1GE and DWDM 10GE network) >> >> The 100 Mbit Transponder cost arround 600 Euro (each) and for >> your 5000 feets you need only an inexpensive FiberOptic cable. >> EVEN the cheapes one would transfer 1 Gbit at this distance. > >What I'm not (yet) seeing is a fiber optic transceiver listed with >matching fiber optic cable. The transceivers seem inexpensive vs the cost >of the cable. > >> > Are there any particular range extenders you have used and would >> > recommend for making this task a sure thing on the first try? >> > Perhaps I should put an inexpensive ethernet switch at each junction >> > to serve as a regenerative repeater? >> >> You have to use at least 3 Repeaters which NEED electricity. Do you >> know this? > >Yes, of course. > >> 5000 feet CAT5, 3 Repeater plus electric installation cost more, >> then the FiberOptic Cable with two Transponder. And of course, no >> one can sniff traffic on FiberOptic and you have no worry about >> magnetic fields disturbing your 5000 feet... > >No one is going to sniff *this* one. > >Am not finding sources of fiber optic cable as easily as I can find >fiber optic transceivers. > >100baseT ethernet switches are about $25 each if one will serve as a >regenerative repeater. > >Did I mention this is a temporary installation? > >-- >David Kelly N4HHE, dkelly@HiWAAY.net >======================================================================== >Whom computers would destroy, they must first drive mad. >_______________________________________________ >freebsd-questions@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-questions >To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"