Why can an eight-wire network camera only connect four wires?

Because the network cable only needs four wires, if you have a router or switch, you can observe that its network port is also four copper sockets, so as long as the line sequence corresponding to these four sockets is correct, only four wires of 1236 are used for eight network cables. Relatively speaking, if a crystal head is plugged with eight cables and then fastened, it is more stable than four cables and is not easy to be damaged. However, in wiring, for various reasons, it is normal to sometimes use an 8-core cable as two cables. However, the international standard only uses 1236 to make 4578 four-core cable, which is ok for short distance and generally not recommended. They only produce stable cables and crystals.