FiberNoob Wrote:Why are copper patchcords only available up to a typical length of 25 feet or so?
Can I get longer copper patchcords, like 300 feet?
A patchcord, as defined by the TIA, is meant to be used only to connect from a user's PC to a wall outlet, or from a patchpanel to a switch and so on. As defined by that standard (TIA-568B), there can be no more than 10 meters in total length of patchcords in any one channel. This is due to the fact that patchcords are made using stranded copper rather than solid copper wire. While this does allow for greater flexibility, the transmission characteristics of the stranded copper are not quite as good as a solid copper wire. So, could you get a 300' patchcord built for you? Probably. Is it the best idea? Probably not. However, if this "patchcord" is made using solid copper cabling, and terminated with good, high quality jacks for connection into a wall outlet or such, it technically becomes a horizontal cabling run, which can be up to 90 meters (295') in length, but should be permanently installed in conduit, raceway, raised flooring or similar.