I recently received a request from a social media friend to clear some confusion about a RS-422 communication project. I quickly brushed up my knowledge on the ...

The MESA 5I21 is a programmable serial interface card for the PCI bus. The 5I21 is designed for applications using RS-422 and RS-485 interfaces. The 5I21 can support up to 12 full duplex RS-422 or ...