R/TIO modules provide a powerful input/output solution for Ontrol's R-ION series programmable touch-screen controllers. With the R/TIO module, the installation on the wall-unit side is greatly simplified, as the IO module can be located close to the terminal unit being controlled, with only comms wiring into the R-ION wall unit. The mains powered versions eliminate the need for additional power-supplies or transformers further reducing cost and installation labor.


8x Universal Inputs : Universal inputs are compatible with

  • passive sensors (Pt1000, NTC),
  • active sensors (0-10Vdc)
  • voltage-free contacts (DI)

See the datasheet for allowed types on each input.

4x Modulating Outputs : 0-10VDC analog outputs allow controlling modulating actuators.

Two of these points can be configured to function as digital inputs!


R/TIO modules host a battery backed-up real-time-clock. Therefore, weekly time schedules can be implemented locally, fully configurable from the connected R-ION or remotely from a supervisory system.

5x Relay Outputs : Five relay outputs are provided, each with 5A rating.

2x Triac Outputs : Flexible configuration options are provided, allowing control of on/off, thermo-electric (PWM) or floating actuators. The triacs can also be independently configured to control individual loads.

Expansion port : Up to two RK4 relay modules can be connected to the device with a ribbon cable, providing up to a total of 8 additional relay outputs

Connection Diagram & Schematic

Ontrol Niagara Day

A Partner Event in Istanbul on October 3rd!

A day filled with technical insights and business sessions. In addition to engaging presentations from Ontrol, several leading companies from the sector will contribute,  sharing their expertise on unique Niagara projects.

Tridium EMEA Managing Director Paul Price and Regional Director Toney Varghese will also be joining as guest speakers, bringing their wealth of knowledge and insights to the event. Stay tuned for more details about the event.