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How to Make a USB-to-RS485 Converter

by Bryan Roberts

You can use the RS485 cable to connect various devices, such as printers and scanners, to your computer. If you do not have a computer with an RS485 port, you can still connect these devices to your computer by converting the RS485 signal to a USB signal. With a few pieces of equipment, you can construct your own USB-to-RS485 converter cable.

Step 1

Connect one end of your RS485 cable to the port on your USB-to-RS485 cable. The adapter cable is now constructed.

Step 2

Connect the RS485 end of your new cable to the port on your RS485 device.

Connect the USB end of the cable to an available USB port on your computer. Your devices are now successfully connected.

Items you will need

  • USB-to-RS485 cable
  • RS485 male-to-male cable

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