What are the DB connector categories? And what are its advantages?

I.What are the classifications of DB connectors? Generally speaking, according to the specifications of the port, it can be divided into five kinds: DB-9, DB-15, DB-25, DB-50, DB-68. d-9 interface is a serial communication interface, which has been replaced by USB interface. The reason for this is that the USB interface, with higher data bus transfer speeds and a simpler structure, has only two power cables and two data cables. dB-15 is used as a flexible connector for the joystick port of IBM compatibles, and can be used as a video connector in Apple Pie. There is also a high-density DB-15 flexible connector used as a video graphics adapter (VGA ) on IBM-compatible machines.The DB-25 is a hardware connector used to connect an external modem to the RS-232 serial peripheral of older IBM-compatible devices. The DB-25 flexible connector is the parallel port connector for most computers. The DB-25 was used in the original IBM computers and has been around for a long time.The DB-50 is a flexible connector that was used as a SCSI-2 connector in 8-bit narrow SCSI devices on older Sun and Data General computers. However, the DB-50 is not recognized by the SCSI standard.The DB-68 is a high density connector used as a SCSI-3 connector in 16-bit wide SCSI and high speed SCSI devices.

-DB connectors have the function of transmitting current and signals and are widely used in all fields. The advantage of connectors is that they can simplify the assembly process of electronic products. Electronic components equipped with connectors are easy to replace and upgrade, old parts can be directly replaced with new parts, saving time and cost; In addition, it can improve the flexibility of the design, in the event of failure of electronic components, the components installed with connectors can be quickly replaced parts, easy to maintain.

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