Is RS-232 a serial port?

A serial port complying with the RS-232 standard was once a standard feature of many types of computers. Personal computers used them for connections not only to modems, but also to printers, computer mice, data storage, uninterruptible power supplies, and other peripheral devices.

Is serial and COM port same?

A serial port is a 9 pin plug such as the one showed here and it is also called a COM port. USB ports are a different standard from serial ports.

Is DB9 the same as serial?

All serial connections communicate using the same method, but there are varying configurations. The term DB-9 really pertains to the connectors on the end of the cables and not the cables themselves. DB9, for example, is a 9 pin connector for a serial cable.

Is USB considered serial?

While interfaces such as Ethernet, FireWire, and USB also send data as a serial stream, the term serial port usually denotes hardware compliant with RS-232 or a related standard, such as RS-485 or RS-422. Modern consumer PCs have largely replaced serial ports with higher-speed standards, primarily USB.

What is a de-9 serial RS-232?

The RS232C DE-9, often mistakenly referred to as a DB-9 port used to be the industry standard for serial data transmission. A RS-232 serial port was a standard feature of personal computers as it was the preferred way to connect modems, keyboards, mice, external storage and many other peripheral devices.

What is an RS-232 cable used for?

While USB has become the standard, RS232 is still widely used for older printers in the workplace. The RS232 protocol and cable allow the computer to give commands to the printer via a voltage signal. The printer then deciphers those commands and completes the print.

Why is RS232 still used?

While USB has become the standard, RS232 is still widely used for older printers in the workplace. The RS232 protocol and cable allow the computer to give commands to the printer via a voltage signal. The printer then deciphers those commands and completes the print. For years, RS232 has been a standard in industry.

Is RS232 outdated?

Two of the oldest interfaces are RS-232 and RS-485. These legacy interfaces aren’t obsolete or discontinued, though. Both are still alive and well in many applications. The whole purpose of a serial interface is to provide a single path for data transmission wirelessly or over a cable.