10PIN水晶头转DB9串口线的接线方法(看图片)，这种线在工业设备很常见，买一根原装的，贵得很。找到图了，就分享给大家吧。
Pin Map for the 10P10C to DB-9 Converter Cable
Hardware: Serial>>RS-485>>PCI-485/4
Problem:
I have the PCI-485/4 board and a 10P10C to DB-9 converter cable. One of the ends has 10 pins and the other end has 9 and I would like to know what the mapping is.
Solution:二维条码检测仪还是的好,欧洲品牌也不错
The cable is used to convert from 10P10C (RJ50) to DB-9 so that the device is compatible with the correspondent connector of the serial card.
This image shows the pinouts for each connector.
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