The most commonly used transmission medium in integrated wiring is twisted-pair wire, which is generally formed by two standard insulated copper wires entwined with each other. The twisted pair connector connects the twisted pair with the appropriate counterpart components, and the control circuit is turned on and off, so that the twisted pair can transmit analog and digital signals.
There are three types of twisted pairs commonly used in computer networks:
1. Straight line
The straight-through cable is used to connect the computer and the switch or the connection of different ports between the switch and the switch. According to the TIA/EIA regulations, both ends of the straight-through cable use the T568B line sequence standard.
2. Crossover line
The crossover cable is used for the direct connection between the computer and the computer, the direct connection of the same type of port between the switch and the switch, and it is also used for the computer to directly connect to the Ethernet interface of the router. Among the two ends of the crossover cable, one end uses the TIA/EIA-A line sequence standard, and the other end uses the TIA/EIA-B line sequence standard.
3. Configuration line
The configuration line is used to connect the computer to the control port of the switch or router. At this time, the computer acts as a super terminal for network equipment. According to the TIA/EIA standard, one end of the configuration line uses a twisted pair connector and the other end uses a COM interface. As for the connection The line sequence of the device is related to the corresponding device model.
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