On Saturday 25 December 2010 09:42 am, S Mathias wrote: > Two questions that was not always clear for me [sorry for posting to this > list :\]: > > ########################################################################### >################### > > Q1) when cabling, is the color order important? like: > > straight cabling: > A side: white-orange, orange, white-green, blue, white-blue, green, > white-brown, brown B side: white-orange, orange, white-green, blue, > white-blue, green, white-brown, brown > > could be eg.: like this?? > A side: white-orange, brown, white-blue, green, white-green, blue, > white-brown, orange B side: white-orange, brown, white-blue, green, > white-green, blue, white-brown, orange > > ########################################################################### >###################
The order was determined to minimize cross-talk on the adjacent wires. Your best bet is to stay with the standard. So, yes, the order is important. > > Q2) again cabling.. i know what is the color order of straight and > crossover cabling. BUT: what are the color orders, when i need to create > physically two separated networks? > > 568B; straight; nic to switch: > A side: white-orange, orange, white-green, blue, white-blue, green, > white-brown, brown B side: white-orange, orange, white-green, blue, > white-blue, green, white-brown, brown ---------- > 568A; crossover; nic to nic: [it's not so important about from ~2005]: > switch the pairs: 1&2 with 3&6 on one side: > A side: white-green, green, white-orange, blue, white-blue, orange, > white-brown, brown B side: white-orange, orange, white-green, blue, > white-blue, green, white-brown, brown ---------- > one cable, two straight networks: > A side: > I.: > II.: > B side: > I.: > II.: > ---------- > one cable, two crossover networks: > A side: > I.: > II.: > B side: > I.: > II.: > ---------- > one cable, one straight and one crossover network: > A side [straight]: > I.: > II.: > B side [crossover]: > I.: > II.: > ---------- > one cable, one crossover and one straight network: > A side [crossover]: > I.: > II.: > B side [straight]: > I.: > II.: > Please explain what you are trying to accomplish and at what network speeds. Off the top of my head, 10baseT networks used 4 wires and 100baseT used all 8 wires. If you are trying for 100baseT speeds, you have to use all 8 wires. Did you notice how difficult the kind of cabling you want is to find? There is a reason for that. Mark -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/201012251147.12334.m...@neidorff.com
