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Recent content by ViktorOne123

  1. ViktorOne123

    RS485 connecting issues

    I have several Vaisala Temp/humidity sensors (HMP110) with RS485 outputs (2 wire half duplex). The input power is 5-28VDC max 5mA. I want to connect it to the National Instruments PXIe 8431/16 which has 8DB9 RS485 male connectors. The Vaisala instrument has 4 colored wires and 1 ground. I would...
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