Adapter Requirements for CIPer Model 30
• USB to wire end RS-485 cable
• Must use either FTDI chipset (FT232 series) or Prolific chipset (PL2303).
Some specific adapters available on-line
• https://www.waveshare.com/usb-to-rs485.htm
Engineering group recommends these (w/ Tx/Rx LEDs, two cable lengths):
• 1.8m cable: https://ftdichip.com/products/usb-rs485-we-1800-bt/
• 5m cable: https://ftdichip.com/products/usb-rs485-we-5000-bt/