1、 Direct welding type: the inner conductor of the cable and the inner conductor of the connector; The soldering connection between the outer conductor of a semi rigid cable and the outer conductor of a connector requires the use of specialized assembly tools. Advantages: 1. The connection cable can be good. 2. The welding structure has high stiffness and good overall performance. 3. There are many types of welding methods, and the applicability of welding processes is wide, which is relatively easy to implement. 2、 Crimping type: The cable shielding layer is crimped and fixed on the connector using a special crimping pliers by crimping the sleeve. The structure is simple, fast in assembly speed, good in consistency, and high in reliability. This structure is suitable for flexible cables. Advantages: 1. Simple structure. 2. Fast assembly speed. 3. Good pathogenicity; 4. High reliability. 3、 Clamping type: When assembling connectors and cables, a nut structure is used to connect and fix the cable shielding layer to the outer conductor of the connector shell through the clamping mechanism. This structure is suitable for flexible cables and feeder cables. Advantages: 1. The copper terminal blocks are easy to connect and separate, which meets practical requirements and can easily achieve chain bridging. When the wire connection positions are closely adjacent, it can improve insulation safety and prevent wire branching. 3. It can make it easier for the wire to be inserted into the end. Cable components are high-precision consumables. Proper operation, high intensity, and frequent use can shorten the service life of cables. Therefore, it is important to pay attention to the routine maintenance of cable components during daily use. Also, the installation methods of connectors may vary depending on the application, so it is important to distinguish them well