一般 lan 線內的顏色線排列是怎樣的?

Wiring Tutorial for 100BaseT Unshielded Twisted Pair (UTP) [RJ45] Cat 5 LAN cable
CAT5 unshielded twisted pair (UTP) cable contains 4 twisted pairs of wires, a total of 8 wires.
The pairs of wires in UTP cable are colored so that you can identify the same wire at each end. Furthermore, they are usually color coded by pair so that the pairs can also be identified from end to end. Typical CAT5 UTP cables contain 4 pairs made up of a solid color and the same solid color striped onto a white background. The most common color scheme is the one that corresponds to the Electronic Industry Association/Telecommunications Industry Association's Standard 568B.
The following table demonstrates the proper color scheme.




Wire pair #1:
White/Blue
Blue

圖片參考：http://www.netspec.com/helpdesk/images/cblpairs.gif


Wire pair #2:
White/Orange
Orange

Wire pair #3:
White/Green
Green

Wire pair #4:
White/Brown
Brown
According to the EIA/TIA-568B RJ-45 Wiring Scheme:
It gets even more odd because wire Pair#2 (white/orange, orange) and Pair#3 (white/green, green) are the only two pairs used for 10BaseT data.




Pair#2 is connected to pins 1 and 2 like this:

Pin 1 wire color:
white/orange

Pin 2 wire color:
orange

Pair#3 is connected to pins 3 and 6 like this:

Pin 3 wire color:
white/green

Pin 6 wire color:
green



The remaining two twisted pairs are connected as such:






Pair#1

Pin 4 wire color:
blue

Pin 5 wire color:
white/blue

Pair#4

Pin 7 wire color:
white/brown

Pin 8 wire color:
brown

This is illustrated in the following diagram:

圖片參考：http://www.netspec.com/helpdesk/images/cblordrd.gif


Now the wires forming the pairs must be gathered together and trimmed so that they can be inserted into the RJ45 plug. The pairs gathered and trimmed is illustrated in the following diagram:

圖片參考：http://www.netspec.com/helpdesk/images/cblflat.gif


Then when the pairs are inserted into the RJ45 plug they should look like this:


圖片參考：http://www.netspec.com/helpdesk/images/gdjack.gif






Source : http://www.netspec.com/helpdesk/wiredoc.html







圖片參考：http://www.lanshack.com/images/568-B.gif


568-B Wiring



Pair #
Wire
Pin #

1-White/Blue
White/Blue
5

Blue/White
4

2-Wht./Orange
White/Orange
1

Orange White
2

3-White/Green
White/Green
3

Green/White
6

4-White/Brown
White/Brown
7

Brown/White
8

< 568-B Diagram

圖片參考：http://www.lanshack.com/images/568-A.gif


568-A Wiring



Pair #
Wire
Pin #

1-White/Blue
White/Blue
5

Blue/White
4

2-White/Green
White/Green
1

Green/White
2

3-White/Orange
White/Orange
3

Orange/White
6

4-White/Brown
White/Brown
7

Brown/White
8

< 568-A Diagram

Patch Cable Assembly Instructions

圖片參考：http://www.lanshack.com/images/6.jpg


How to Make a Category 5 / Cat 5E Patch Cable

source : lanshack.com


### others pls do not copy

朋友：
　　Ｉ－ＣＡＢＬＥ的技術支援說脫去外膠線就是８條細線，它
們已排列好並要將它們剪齊插入ＲＪ４５　ｃｏｎｎｅｃｔｏｒ
，再用ＲＪ４５鉗夾一夾就得，留意８條細線在ｃａｂｌｅ两端
的ＲＪ　ｃｏｎｎｅｃｔｏｒｓ裏都要對稱排列，這是我的所知
。

雲遊四海，浪跡江湖。

你指平時上寬頻網絡的 lan 線是稱為 CAT.5 cable
CAT.5 是八蕊線 + RJ45 頭的,以金屬接頭向上,由左至右排列:
白橙,橙,白綠,藍,白藍,綠,白啡,啡