Remote serial port access over Ethernet - software alternative
Serial port is an interface for devices to connect to a computer and exchange information with the system and applications. In serial communication data is transferred one bit at a time, while in parallel communication multiple bits of data are sent simultaneously. For almost two decades serial ports were the most commonly used connections to a computer, and only recently they have been largely replaced by USB ports. However some devices, primarily industrial instruments and tools, still use serial ports for interacting with a computer. These devices are typically large and bulky, and it is not always feasible to move them around to connect to a computer, hence remote serial access over LAN or any other network becomes of critical importance. There are two ways to do it – either with the help of hardware, e.g. a cable, or FlexiHub software.
Using additional hardware to access serial port seems to be a simpler and more straightforward solution, however it is restricted by the length of a cable, while the software solution does not have such limitation. But let us have a closer look at both solutions so you can choose which one suits you best when you need a serial port remote access.
Hardware solution to access remote COM device
All you need here is an additional cable, now attach one end of it to a device and the other end to a computer and you can start using the device right away. The major drawback of this method is that the cable’s length is limited. It is unlikely that you can connect to a device located in a different building or even another floor in the same building – exporting your data or getting another serial device seem to be more feasible options here. Not only it is inconvenient, it also incurs additional expenses on purchasing hardware.