(The standard network cable behavior tutorial has four line sequences according to international standards: T568A, T568B, USOC (8), USOC (6). The first two are generally used. Peel off a twisted pair, and you will see four pairs of single-stranded plastic-coated wires intertwined with each other: green pair, blue pair, orange pair, and brown pair. ??Standard 568A: green-white--1, green--2, orange-white--3, blue--4, blue-white--5, orange--6, brown-white--7, brown--8; Standard 568B: orange-white--1, orange--2, green-white--3, blue--4, blue-white--5, green--6, brown-white--7, brown--8. The line sequence of USOC(8) is: white-brown, green, white-orange, blue, white-blue, orange, green, brown. The line sequence of USOC(6) is: empty, white-green, white-orange, blue, white-blue, orange, green, empty. TIA/EIA568 standard network cable line sequence: ? Positive line (standard 568B): the line sequence at both ends is the same, the line sequence is: white orange, orange, white green, blue, white blue, green, white brown, brown. Pin?1?2?34?5?6?7?8?? Color orange, white, orange, green, white, blue, white, green, brown, white and brown Reverse line (standard 568A): one end is the line sequence of the positive line, and the other end is: white Green, green, white-orange, blue, white-blue, orange, white-brown, brown. Pin?1?2?34?5?6?7?8?? Color green white green orange white blue blue white orange brown white brown TIA/EIA568 standard network cable line sequence: positive line (standard 568B): the same line sequence at both ends, The line sequence is: white-orange, orange, white-green, blue, white-blue, green, white-brown, brown. Pin1??2??3?4??5??6??7??8? Color? Orange White? Orange? Green White? Blue? Blue White? Green? Brown White? One end is the line sequence of the positive line, and the other end is: white-green, green, white-orange, blue, white-blue, orange, white-brown, brown. Pin1??2??3?4??5??6??7??8? Color? Green and white? Green? Orange and white? Blue? Blue and white? The network cable made by Lucent standard is used for data terminal equipment computer router to connect with HUB or SWITCH. The data transmission rate is 10Mbit/s under 10BaseT, and the data transmission rate under 100BaseTX is 100Mbit/s. Also known as straight-through network cable: a network cable made according to the standard 568B. Applicable to: PC-HUB: positive line b-bHUB-HUB common port-level connection port: positive line HUB (cascading port)-SWITCH: positive line SWITCH-ROUTER: positive line crossover network cable (reverse line): in standard network Under the line sequence, 1 and 32 and 6 cores need to be crossed to form a so-called crossover cable. It is used for data terminal equipment, computers, routers and HUB or SWITCH as long as the line sequences on both sides are consistent. Because this behavior cannot achieve the best electrical transmission characteristics, it can generally only be used for 10BaseT, and the data transmission rate under 100BaseTX can reach less than 100Mbit/s. Also known as direct connection network cable/level connection network cable/crossover network cable (reverse cable): network cable made according to the standard 568A. Applicable to: PC-PC: Reverse line a-bHUB-HUB Ordinary port: Reverse line HUB-HUB-level connection port-Class connection port: Reverse line HUB-SWITCH: Reverse line SWITCH-SWITCH: Reverse line ROUTER-ROUTER: Reverse line ADSLMODEM-HUB: reverse line)
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