Cable joints, also called cable heads, are a component of the cable. The purpose of the cable joint is to connect each segment of cable together after the cable is laid so that it becomes a continuous line. The cable joints in the middle of the cable line are called middle joints, and the cable joints at the two ends of the line are called terminal heads. The cable terminal head and the intermediate joint are collectively referred to as the cable head. The cable connector is used to lock and fix the incoming and outgoing wires, and play the role of waterproof, dustproof, and shockproof. There are two common cable intermediate joints: lead sleeve intermediate joint and epoxy intermediate joint. The former consumes a lot of materials and is inconvenient to install; the latter is currently more commonly used.

The cable connector is a component of the connecting cable, which can be plugged and connected at any time. Its function is to replace the black tape to safely energize the circuit when the circuit is blocked or the circuit is blocked. Generally, cable connectors are mainly used between various transmission equipment, such as various digital program-controlled switches, signal transmission between power distribution racks, and internal connections of photoelectric transmission equipment. Now we can use it in data transmission, including audio, video, electronic communication, and so on. The cable connector has an excellent sheath, which has excellent flame retardant properties. The safety of the cable connector is greatly improved. Now manufacturers use multi-core cable connectors to make it easier for us to lay cables.