Date: Fri, 17 Jul 2009 10:48:37 -0400 From: Jeff Dickens <jeff@m2.seamanpaper.com> To: freebsd-questions@freebsd.org Subject: Re: 5000' ethernet? Message-ID: <4A608F45.7080707@m2.seamanpaper.com> In-Reply-To: <4884-SnapperMsgFC8D8BD2C683FCD7@[68.246.187.247]> References: <20090715194718.GA16401@Grumpy.DynDNS.org> <4884-SnapperMsgFC8D8BD2C683FCD7@[68.246.187.247]>
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This is a multi-part message in MIME format. --------------060907060508030604010403 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Check www.gnswireless.com (this from a satisfied customer) That said, I also use the method of placing mini ethernet switches or hubs (electrically a multiport repeater and damned hard to find now) every so often to reach distant parts of our warehouses. These are powered, of course. POE might work if you only needed one or two repeaters. mikel.king@olivent.com wrote: > <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" >> > > > _______________________________________________ > 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" > __________________________________________________________ Scanned by Google Message Security - Leaving Seaman Paper --------------060907060508030604010403--
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