Date: Wed, 15 Jul 2009 17:38:33 -0400 From: mikel.king@olivent.com To: "David Kelly" <dkelly@hiwaay.net>, "Michelle Konzack" <bsd4michelle@tamay-dogan.net> Cc: freebsd-questions@freebsd.org Subject: Re: 5000' ethernet? Message-ID: <4884-SnapperMsgFC8D8BD2C683FCD7@[68.246.187.247]> In-Reply-To: <20090715210752.GE16489@Grumpy.DynDNS.org> References: <20090715194718.GA16401@Grumpy.DynDNS.org>
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<20090715202734.GH29667@tamay-dogan.net> <20090715210752.GE16489@Grumpy.DynDNS.org> From: Mikel <mikel.king@olivent.com> 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" <dkelly@hiwaay.net> 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"
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