DAC161S997: 4-20mA Receiver and transmitter to RS232 - Data converters forum - Data converters - TI E2E support forums
![BB-232CL9R - ULI-227TL - RS-232 (DB9 Female) to 20 mA Current Loop (Terminal Block) Converter - Advantech BB-232CL9R - ULI-227TL - RS-232 (DB9 Female) to 20 mA Current Loop (Terminal Block) Converter - Advantech](https://advdownload.advantech.com/productfile/PIS/BB-232CL9R/Product%20-%20Photo(B)/ULI-227TL_01--20231107172802.jpg)
BB-232CL9R - ULI-227TL - RS-232 (DB9 Female) to 20 mA Current Loop (Terminal Block) Converter - Advantech
![uart - The 20mA loop to USB fails midway of connection with unknown reason! - Electrical Engineering Stack Exchange uart - The 20mA loop to USB fails midway of connection with unknown reason! - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/ftmbq.png)
uart - The 20mA loop to USB fails midway of connection with unknown reason! - Electrical Engineering Stack Exchange
![Computer RS-23Z serial interface current loop circuit - Power_Supply_Circuit - Circuit Diagram - SeekIC.com Computer RS-23Z serial interface current loop circuit - Power_Supply_Circuit - Circuit Diagram - SeekIC.com](http://www.seekic.com/uploadfile/ic-circuit/2011410211412124.gif)