The crystal interface often mentioned is the RJ45 type network cable plug, made of eight cores, which is used to connect LAN and ADSL broadband Internet users. RJ45 type thread head has T568A and T568B two line connection methods, respectively green white, green, orange white, blue, blue white, orange, brown white, brown, orange white, orange, green white, blue, blue white, green , brown, white, brown.
RJ45 straight through line standard, there are two line orders 568A and 568B in the standard.
568A standard:
Green white, green, orange white, blue, blue white, orange, brown white, brown. There are also mouth squats: green blue orange brown, light color in front, three or five interchange.
568B standard:
Orange white, orange, green white, blue, blue white, green, brown white, brown. The back mouth is: orange blue green brown, light color in front, three or five interchange.
