FTDI Chip based adapters such as the Star Tech ICUSB2321F. Prolific Technology PL2303 device driver: Ī number of users report good success with these adapters:. Magic Control Device Technology (also works for some Belkin, other brands):. Here are several device makers and and a link to their device drivers: The manufacturers often provide a basic device driver that allows Windows, Mac, and Linux computers to talk to their components. There are several manufacturers of semiconductor chips used to make USB to RS232 serial adapters and USB native devices. If you are still having problems, then read on. It is a good idea to visit their web site to download the latest drivers and software, and then install them. Starizona Microtouch Focuser controller Įach manufacturer may provide a device driver and software to control their equipment. Some products are natively USB, and don`t need an RS232 adapter, but do use the same underlying serial protocol. To connect your old RS232-based devices like a modem, serial mouse, or telescope mount, you needed an adapter that converts the USB standard to an RS232 serial communication port, known as a USB to Serial adapter.ĭevices that adapt from USB to a RS232 DE-9 connector use semiconductor "chips" made by many manufacturers, and convert the USB signals and protocols to PC communication port standards and an RS232 interface. USB to RS232 serial adapter* to convert from USB to RS232. Universal Serial Bus or USB lets you plug in any number of devices such as a: USB is common to Windows PCs and Apple Mac computers, as well as Raspberry Pi and many Linux devices. 
Over time, RS232 ports were no longer included in PCs, and a new technology called Universal Serial Bus (USB) came standard. RS232 was commonly used to connect devices such as a: RS232 allowed long cable lengths because it used +/-12V for signalling. They had a DB-25 or DE-9 connector (sometimes called D-shell).
Older computers had an actual RS232 communication port, built onto the motherboard or on an expansion card. Have you experienced communication errors, equipment disconnects, poor reliability, or erratic mouse pointer operation?Ī common cause is related to how Windows and Mac handle RS232 serial devices, USB devices, and USB to RS232 serial adapters.įor more information on RS232, there is an excellent WikiPedia article here:
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