http://itknowledgeexchange.techtarget.com/itanswers/maximum-length-of-attenuation-for-twisted-pair-cables/ Wed, 19 Jun 2013 01:14:38 +0000 hourly 1 http://itknowledgeexchange.techtarget.com/itanswers/maximum-length-of-attenuation-for-twisted-pair-cables/#comment-54385 pressler2904 Thu, 03 Jul 2008 18:14:38 +0000 #comment-54385 …assuming you are discussing 10- or 100-base-T (standard Ethernet or Fast Ethernet). The figure effectively drops for gig-e (1000-base-T). Note that the faster the speed and longer the run, the better quality cable is required: if running 300 feet with 10-base-T, cat 5 (possibly even cat 3) is fine. With 100-base-T, cat 5e would be requires, even though cat 5 is supposedly rated OK for 100Mb/s. Cat 6 is the way to go for 1000 base T at any distance, and you may need to shield the cable if there is any EMF source (ie: industrial equipment, fluorescent or Neon lighting, etc…) anywhere on the run…

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