LAN 頭 and LAN cable 接法

金屬位向上

左至右

橙白,橙,綠白,藍,藍白,綠,啡白,啡

以上係正確的排列方法

另外如果你係想要用條線機過機的話,線既是但一邊既排列方法要改一改,如下

綠白,綠,橙白,藍,藍白,橙,啡白,啡

For straight through cable, the order should be:
white/orange, orange, white/green, blue, white/blue, green, white/brown, brown
for both ends.

For crossover cable, the order should be:
white/orange, orange, white/green, blue, white/blue, green, white/brown, brown
for one end and the other end should be:
white/green, green, white/orange, blue, white/blue, orange, white/brown, brown.

Besides, if the cable is used for 1000bps or even higher speed, all of the 4 pairs of wires should be used. If the cable is just for 100bps or even slower, only white/orange, orange, white/green and green are needed. So that's why a cat5 cable can be used to make two connections.

Moreover, according to Cisco, a straight through cable is used between host-hub, host-switch, switch-router. a crossover cable is used between host-host, host-router, switch-switch, hub-hub, switch-hub. However, nowadays all most all switches and routers (except Cisco =_='') can all auto-sense the cable (auto-MDI), so there is less important for using a straight through or clossover cable already.

無所謂, 總之兩邊的顏色次序係一樣就得.