每根线由文本和数字组成的编码来识别，由2位字母后跟2位数字构成。
A Each wire is comprised by an alphabetical code following 2 alpha digits and 2numerical digits.
B Each wire is identified by an alphanumerical code comprising 2 alpha digits followed by 2 numerical digits.
C Each wire consists of an alphanumerical code following 2 alpha digits and 2numerical digits.