If you don't know the layout of the network cable, it is more troublesome to find the network cable in the room. Generally, you just need to ask the wiring staff of the decoration, but it is difficult to find the network cable in the room because few decoration workers leave the network cable without putting the drawings.

The quickest way is to make all the network cables into crystal heads (all according to the method of 568B), and then use the network cable tester to find a group that must be labeled before use.

Some rooms are decorated with cable sockets. First, make sure that all network cable sockets are wired according to 568B mode (you can open the panel and see the sign of wiring mode on the network cable sockets), and then test the network cable direction of each socket with a network cable tester.

The 568A mode is basically not used at home, so the network cable is generally done according to the 568B mode. You can check the connection mode of 568B.