The RS232 and RS485 serial port has its share of problems. Some of them are inherent while others arise during its usage. The intrinsic ones are constituted by its limitations, while the ones that occur when being used are spontaneous. This means that the RS232 / RS485 serial port has ‘an already predicted’ problem (the […]

The RS232 and RS485 interfaces use asynchronous serial communication. This means that they utilizes start and stop bits in order to know when information is being sent. This is a bit different from the synchronous data communication in which devises must be synchronized at first and then send data continuously. This means that in the […]

Universal Serial Bus (USB) ports have become very popular and most new computers come installed with two or more. Users are comfortable with the advantages of USB’s plug and play and with the variety of peripheral devices that can be easily connected. However, there are still many legacy devices, especially in industrial automation environments, where […]

In the serial communications world one of the most enduring specifications is RS232. Indeed, many personal computers (PCs) still have at least one RS232 port, even with the popularity of Universal Serial Bus (USB) ports. It is partly this longevity that has created a market for converters to interface between RS232 and other serial interfaces […]

Universal Serial Bus (USB) connectors are well known for the high-speed data transfer and hot swap capabilities they provide to personal computers (PCs). It’s also becoming common to see PCs with USB ports used as diagnostics and monitoring devices in industrial automation networks, such as those used by RS422-compliant surveillance and security camera systems.
It’s important […]