This allows you to communicate with it by sending commands via a serial port on your PC. You need an interface of some sort between your computer and the device you want to control. RS232 translates your computer’s output into a form that an Arduino or other microcontroller can read. The EIA/TIA successfully replaced all analogue standards with digital ones during that time. RS232 ports are found on many computers and peripheral devices, such as hard drives or printers. The connection is typically made with either a 9-pin connector (DB9) or a 25-pin connector (DB25). In 2008 the trademark was owned by Alcatel-Lucent after being transferred from AT&T as part of a larger trademark-exchange agreement between AT&T and Alcatel. The RJ45 was one of the first registered trademarks for a connector type in the United States, and it is still actively enforced. The connectors are circular with an eight-position, eight-contact configuration. It is mainly used for terminating Ethernet cables. RJ45 is a family of related Ethernet connector standards, usually carrying a combination of twisted pair and/or coaxial cable. It allows us to send and receive information, through the medium of electricity, at high speeds using copper wires.īut RJ45 was not always invented for this purpose. RJ45 is a key ingredient that connects people to the internet. RJ45 is widely used as compared to RS232.RJ45 is used as an interface, but RS232 is used in industrial applications.RJ45 supports 8 pins, but RS232 supports 9 pins.RJ45 is the standard connector for Ethernet networks, but RS232 is used for serial connections.
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