What is D-SUB connector and what are the domestic and foreign manufacturers of D-SUB connector?

1. What is D-SUB connector? D-SUB connector is an electrical connector widely used in computers and electronic devices, also known as D-type connector or D-shell connector. It gets its name from its outer shape, i.e. the bottom of the connector is D-shaped. D-SUB connectors usually consist of two interlocking semi-circular metal housings, with a female (socket) on one side and a male (plug) on the other side, electrically connected through multiple metal pins (pins) and sockets (sockets). Due to its reliability and convenience, D-SUB connectors are widely used in computers, communications, industrial automation, aerospace and other fields. The standard of D-SUB connectors is divided into several specifications, including different specifications such as 9-pin, 15-pin, 25-pin, 37-pin and 50-pin. Among them, 15-pin and 25-pin specifications are the most common and are used to connect serial ports, parallel ports, VGA monitors, game controllers and other devices. The D-SUB connector has many features that make it one of the commonly used connectors in electronic devices. Here are some of the main features of D-SUB connectors: High reliability: D-SUB connectors use metal pins and jacks for electrical connection, which is highly reliable, and the connection is tight and not easy to loosen. Easy Installation: The installation of the D-SUB connector is very convenient, you only need to plug the plug into the socket. Strong versatility: D-SUB connectors are widely used in computers, communications, industrial automation, aerospace and other fields, and have wide applicability. High transmission rate: The D-SUB connector usually has a high transmission rate and can support high-speed data transmission, such as USB interface, etc. High hardness: D-SUB connector adopts metal shell, which has high hardness, strong pressure resistance and wear resistance, and can be used in harsh environments. Corrosion resistance: The metal housing of the D-SUB connector has strong corrosion resistance and can be used in wet or corrosive environments. Simple maintenance: The maintenance of D-SUB connectors is relatively simple, and maintenance tasks such as cleaning and replacing pins can be performed. Low cost: Because the manufacturing process of D-SUB connectors is relatively mature, the manufacturing cost is relatively low. Generally speaking, D-SUB connector is a connector widely used in electronic devices, with high reliability, strong versatility, installation D-SUB connector is a common electronic component, which is used to transmit signals in different circuits. It usually consists of a metal case and multiple pins, which can be used to connect various devices such as computers, televisions, stereos, etc. The D-SUB connector gets its name from its shape, its housing is D-shaped, while the pins are arranged at two right angles on the housing. The connector was originally developed by German electronics company Cannon in 1952 and was later popularized by companies such as Amp and ITT Cannon. D-SUB connectors come in many different forms and gauges, including 15-pin, 25-pin, 37-pin, 50-pin, and more, with the most common being 15-pin and 25-pin. Each of these specifications has its own specific purpose, such as a 15-pin connector is typically used to connect a computer's serial port or game controller, while a 25-pin connector is typically used to connect a printer or monitor. The main advantage of D-SUB connectors is that they can connect many different types of devices and offer good reliability and durability. They are usually used in high-speed data transmission occasions, such as computer networks, data centers, etc. In addition, the D-SUB connector can also implement some complex functions, such as supporting two-way data transmission and power supply. In addition to the traditional D-SUB connector, there are some improved versions, such as high-density D-SUB connectors and DVI connectors. High-density D-SUB connectors use a smaller pin arrangement to achieve higher port density, while DVI connectors are specifically used for digital video signal transmission. D-SUB connectors are a widely used type of connector used to connect a variety of different types of devices. They have good reliability and durability, can realize complex data transmission and power supply functions, and come in a variety of specifications and forms to suit different applications.

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2. What are the domestic and foreign manufacturers of D-SUB connectors?

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