FrSky Redundancy Bus

Old Price: $89.95

Special Price: $53.12

Part Number: FRS-RBUS

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FrSky, manufacturer of high performance, reliable and affordable openTx transmitters and accessories

The FrSky Redundancy Bus is a unique switchboard module that can operate 2 receivers and 2 batteries to provide you with total peace of mind when flying your model. You can also run your servos from the switchboard with complete protection from high voltage overload.

The Redundancy Bus also supports Smart Port telemetry for your Taranis and will provide telemetry feedback for voltage, current, capacity and overload indication.


  • Overload protection on each channel
  • Possibility to connect up to 2 receivers with serial interface (SBUS)
  • MPX battery input connector(s): 2 battery inputs
  • 50Hz mode of servo outputs (20ms period) or Equal to the input of SBUS cycle
  • Support S.Port Telemetry (voltage, current, capacity, measurement, overload indication ...) sensors
  • Easy settings of switching mode of servo outputs
  • Firmware updates by user
  • Suitable for use with high voltage (HV) servos
  • Compact size for easy installation
  • S.PORT— be use for output of telemetry data
  • SBUS OUT— output a frame SBUS
  • Rx1 IN— primary input for connecting receivers with serial output (SBUS)
  • Rx2 IN— secondary (backup) input for connecting receivers with serial output (SBUS)
  • BATT1 and BATT2— MPX connectors for connecting batteries or a BEC, etc., to power the servos and receivers connected to the Power Box


  • Brand Name: Frsky
  • Item Name: Redundancy Bus
  • Recommended input voltage: 4-8.4V
  • Number of connectable accu cells: 1-2 Lipos or 4-6 NiMH
  • Number of servo: up to 16
  • Operating temperature: - 20°C up to +75°C
  • Weight: 37g
  • Dimension: 77x43x22mm