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D-Sub, D-shaped connectors with backshells, hoods and other accessories are a type of electrical connectors that are widely used for a variety of applications in the fields of communications, audio/visual, industrial, computer, and many others. These connectors typically have a rectangular shape with two opposing rectangular pins or contacts, two opposing round holes, or a combination of both. The unique shape of the D-sub connectors makes them ideal for use in tight spaces where larger types of connectors would not be practical.

In terms of application, D-sub connectors are most widely used in the computer industry. In computers, they are used in many devices such as keyboards, disk drives, printers, and other peripheral devices. They are also commonly used in telecommunications, audio/visual devices, and automation systems.

In terms of working principle, the way D-sub connectors work is fairly simple. The two rectangular pins or contacts on the connector are connected to each other through a set of wires (or sometimes multiple sets of wires) that are then locked into place with a locking collar. This collar is designed to securely hold the wires in place and prevent them from slipping out of the connector. The locking collar also works to hold the pins in the proper orientation, making sure that the connection is not lost. When the connection is complete, electricity can flow through the wires and power the device.

To ensure quality end-use performance, various types of D-sub connectors have been designed with specific performance ratings outlined by various standards bodies such as UL, IEC, and CSA. In addition to the various ratings, specific tolerances may also be established regarding the size of the connector and the type of wire used. D-sub connectors are available in a variety of sizes, ranging from mini-sized offering two or three pins, to larger sizes that may contain up to 44 pins.

Finally, when it comes to the accessories for D-sub connectors, there are a wide variety of options. These can include cable rings, plunger locks, mounting brackets, strain reliefs, and many more. The purpose of each of these accessories is to help ensure a secure connection and proper performance of the device. Additionally, they can also be used to help prevent wear and tear on the connectors over time.

In conclusion, D-sub connectors with backing shells, hoods, and other accessories are a type of electrical connector widely used in a variety of applications such as computers, telecommunications, and audio/visual devices. The design of these connectors allows for secure connections in tight spaces, while the accessories help to prevent wear and tear and ensure proper operation.

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