電子回路の設計、試作などを請け負っています。今回も計測・テスト・通信・制御に関わる現場で役立つ、記事をお届けします。回路設計の視点ではなく、ユーザー（使う人）側の視点から、できるだけわかりやすく説明しています。 差動シリアル通信規格 ...

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 ...