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Aprilaire 8811 RS-485 to RS-232 Protocol Adapter for the 8870 Communicating Thermostat
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Aprilaire 8811 RS-485 to RS-232 Protocol Adapter for the 8870 Communicating Thermostat

Translate Communications from an Aprilaire 8870 Communicating Thermostat to a PC
  • Converts RS-422/485 communication protocols to RS-232 communication protocols
  • Ideal for PC, laptop or home automation control
  • LED communication feedback on the front panel


  • Details
  • Specs
  • Reviews
  • Manuals
  • What's Included
  • The Aprilaire 8811 Protocol Adapter acts as a translator for the communication process for the Aprilaire 8870 Communicating Thermostat. The adapter takes the built-in RS-485 communications from the Communicating Thermostat and translates that into long distance RS-232 Communication for use with a PC, Host Computer, or automation controllers such as the Elk M1 Gold. It is recommended to use an Aprilaire 8818 Distribution Panel when connecting more than one 8870 Communicating Thermostat.

  • Specifications
    Manufacturer Aprilaire
    Manufacturer Product No. 8811
    UPC 6867208811074
    Power Requirements 9VDC, 500ma (power supply included)
    Connectors RS-485/422, RS-232
    LED Feedback Yes (Transmitting, Receiving, Power)

  • 1 Review

    Review of 30207 Review by MICHAEL
    Review of 30207

    Product arrived in a timely manner. Thanks for processing the order quickly. I would order from Smarthome again for sure.

    Posted on 6/17/2011

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    • 1x - Protocol Adapter
    • 1x - RS-232 Serial Cable
    • 1x - RS-485/422 Breakout Adapter
    • 1x - Plug-in Power Supply
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