BNC onnector

BNC Connector

BNC connector is a kind of connector for coaxial cable, the full name is BayONet Nut Connector (thorn * nut connector, this name vividly describes the shape of this joint), because of the wide application of coaxial cable, bnc connector It is also widely used in communication systems. For example, the E1 interface in network equipment is connected by coaxial cables with two BNC connectors. It is also often used to transmit audio and video signals in high-end monitors and audio equipment.

Types of bnc connectors

BNC connectors include:

BNC-T type head, used to connect the computer network card and the cable in the network;

BNC barrel connectors for connecting two thin cables into one longer cable;

BNC cable connectors for welding or screwing on the end of the cable;

The BNC terminator is used to prevent the signal from reflecting back and causing interference after reaching the cable break. A terminator is a special connector with an internal resistor carefully chosen to match the characteristics of the network cable. Each terminator must be grounded.

Quality determination of bnc connectors

First: From the surface of the product, it is better that the coating is bright and delicate. The higher the purity of copper, the brighter it is. Some products are bright on the outside, but they are iron.

Second: magnet adsorption test, in general, only the bayonet spring and the tail spring are made of iron material; the wire clip, pin and sleeve are made of copper, and other parts are made of zinc alloy.

Third: Scrape off the surface coating to see the material: Use a sharp tool such as a blade to scrape off the coating on the surface to see the material intuitively, and visually compare the product material by scraping the coating of the wire clips, pins, and shielding sleeves.

Fourth: In addition to the above methods, you can also prepare a good quality female head to try

How to install bnc connector

　  Generally speaking, bnc connectors are divided into two types: soldering and solderless. Of course, the welding type is fixed with a soldering iron and solder, which is the most common form used in China. The welding shape can be divided into two types: British and American. According to the material, it is divided into core, zinc alloy and copper. The solder-free type is divided into two types, one is tightened with screws, that is, the middle axis has a screw for quick connection, and the other has higher requirements for cables, including direct screwing, cold pressing and extrusion. formula.