Dometic RJ11 to RJ45 Air Conditioner Communication Adapter Harness Kit (Single Pack)

The number of adapters required to convert existing RJ-11 wiring (used with multi-zone CCC and CCC2 systems) will vary depending on the specific installation. Key factors include: The total number of rooftop units being replaced and the position of each unit within the daisy-chain wiring sequence. In general, an adapter is required when connecting an RJ-11 cable to a Connect Essential control board or CMC wall thermostat or Replacing a CCC2 10-button wall thermostat with a Connect Essential CMC thermostat