RIA‑1 Radio Interface Adapter

Universal connectivity

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A hub for the Hi-5 ecosystem

Capable of functioning as a receiver, transmitter, or motor controller, the RIA‑1 Radio Interface Adapter is a highly versatile component in the Hi‑5 ecosystem. Compact and robust, it supports ARRI's exchangeable radio modules and provides multiple connectors for wireless control of ARRI or third-party cameras and lenses.

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Small and reliable, with future-proof exchangeable radios

A true all-rounder

  • Supports ARRI’s exchangeable radio modules: RF-EMIP, RF-2400, RF-900
  • RX/TX switch: operates either as a receiver or a transmitter
  • Can connect to a camera for power, start/stop/tally, and camera control, and to LBUS devices for lens control
  • Compact motor controller
  • Multiple mounting interfaces: 3/8”, M4

  • Compatible with any camera
  • Also compatible with ARRI and cmotion control devices
  • Supports common distance measurers like Focusbug Cine RT, ARRI UDM‑1, and Cine Tape Measure via SERIAL interface

Sample setups

Hi‑5 + RF-EMIP connected to ALEXA Mini/Mini LF and cforce motors

Hi‑5 connected to RIA‑1 and cforce motors with ALEXA camera control

Hi‑5 connected to RIA‑1 and cforce motors with AMIRA camera control

Hi‑5 connected to RIA‑1 and cforce motors with 3rd party camera control


Simple user interface

Technical data


Transflective TFT-LCD Display (readable in bright sunlight)

0.96" diagonal


475.5 g / 167.73 oz


2x LBUS (4pin Lemo)

1x CAM (7pin Lemo)

1x SERIAL (4pin Lemo)

1x USB-C

Supply Voltage:

10.5 V – 34.0 V

Power Consumption:

max. 95 W including motors

Operating Temperature:

-20°C to +50°C (-4°F to +122°F)