Date: Thu, 16 Jul 2009 11:25:04 +0700 (ICT) From: Olivier Nicole <on@cs.ait.ac.th> To: dkelly@hiwaay.net Cc: freebsd-questions@freebsd.org Subject: Re: 5000' ethernet? Message-ID: <200907160425.n6G4P4Zo042546@banyan.cs.ait.ac.th> In-Reply-To: <384C7A06-AB67-401E-9BFB-D47CC87E089E@hiwaay.net> (message from David Kelly on Wed, 15 Jul 2009 23:10:23 -0500) References: <20090715194718.GA16401@Grumpy.DynDNS.org> <h3llqc$rl9$1@ger.gmane.org> <200907160225.n6G2P6ls041390@banyan.cs.ait.ac.th> <384C7A06-AB67-401E-9BFB-D47CC87E089E@hiwaay.net>
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David, > > You would need 5 boxes, the connections between each run of cable > > could cause too many loss, even if the timing was not an issue. > Wire connections are not all that lossy. You would be surprised by the impedance missmatch tests made by cabling companies... > Meanwhile cat5 is useful for other things after this project is over. And as you already ordered the cable, it is worth testing anyway. > Is my fault for not stating initially that the customer has ruled out > any wireless option. Originally we were going to run a modest 50k bit/ > sec wireless link. OK, but you could have 10 Mbps, not only 50 Kbps, if the bandwidth is a limitation. > > As suggested before you could consider fiber optic, you could order > > a 2000 meters roll of underground outdoor fiber, with pig tail > > installed at each end. For a temporary use, you should not need any > > special precaution for installation: these fibers are usually shielded > > to support a truck to running on it... Or you can get the type of > > fiber designed for aerial usage, 8 shapped cable, including a > > suspension cable, and run it from tree to tree; but it's much much > > more installtion work, the cable tend to be heaviy... > Sources? For the information? Holding a booth at an exhibition next to Krone booth, we got to talk a lot. For cable? I am afraid that, being in Thailand, my sources would charge you a very high transportation cost :) Krone is one brand, they manufacture mostly UTP cable and connectors, but I think they are associated with Belink for the fiber optic cable. I would try to contact a network installer in my area, they should be able to source fiber optic cable for you. Bests, olivier
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