Standard Line Sequence of 25 Pairs of Large Logarithmic Twisted Pairs

　　The standard line sequence of 25 pairs of large logarithmic twisted pairs is arranged according to a certain color law. These color laws usually follow the international wiring standard chromatography, and the main and secondary colors are matched in pairs in sequence.

　　Specifically, the standard line sequence of 25 pairs of large logarithmic twisted pairs is as follows:

　　Main color: white, red, black, yellow, purple

　　Secondary colors: blue, orange, green, brown, gray

　　According to the combination of main and secondary colors, the line sequence is:

　　white and blue

　　white orange

　　white green

　　white brown

　　white ash

　　red and blue

　　red orange

　　red green

　　red brown

　　red gray

　　black and blue

　　Black Orange

　　black green

　　Black brown

　　black gray

　　Yellow Blue

　　Yellow Orange

　　Yellow green

　　yellow brown

　　Yellow gray

　　Purple blue

　　Purple orange

　　Purple green

　　Purple brown

　　Purple ash

　　This wiring arrangement helps to quickly and accurately identify each pair of wires during wiring, and also facilitates subsequent maintenance and troubleshooting. In practice, the cables on the Distribution Frame are usually arranged and connected according to this standard wiring sequence.

　　It should be noted that different manufacturers or batches of twisted pair may have subtle color differences or marking methods, but generally follow the principle of matching the main and secondary colors. Therefore, it is recommended to refer to the specific product manual or consult the manufacturer for the most accurate information when wiring.