JR DMSS Use - General Notes

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JR DMSS Installation Notes and Equipment Selection

Under Construction

NOTE: This applies to JR radios using the DMSS protocol. Radios using the DSM2/DSMX protocol should follow the Spektrum instructions. There are several ways to connect the Aura to your JR DMSS Receiver:

  • JR Mode A serial protocol (preferred)
  • JR Mode B serial protocol
  • Traditional PWM Servo Connection
  • PPM Connection (Rx may not be available)

NOTE: Any recommendations are based on years of knowledge and product use and are informational only.

  • We do not 'specify' radio installations. Consult your radio manufacturer for radio information.
  • We test and support the use of genuine JR brand equipment only.

JR Mode A

JR Mode A is modern digital data on one wire (similar to Futaba S.Bus). It gives the Aura precise knowledge of all of the available JR channels.

  • Most Preferred and capable JR connection
  • Aura will follow the Failsafe outputs of the JR Receiver.
  • Recommended for all aircraft types
  • Receiver Ports can be used along with Aura Ports.
  • JR Mode A is input into standard Aura's B Port (servo bus). Port A is preferred for Aura Professionals.
  • Generally we recommend full range receivers for aircraft up to 49cc, and full range receivers with 3 or more receivers (antenna) for 50cc and larger aircraft

JR Mode B

  • JR Mode B is a more simple serial protocol
  • Remote Receivers are NOT supported by the Aura Professionals
  • Aura has knowledge of all available JR channels
  • The Receivers Servo Ports are DISABLED when Mode B is enabled. This is a major disadvantage.
  • While it is the users discretion, we no longer recommend Mode B use on ignition engines. With the availability (FW v1.14) JR Mode A in Aura, we feel it is more conservative and appropriate to use Mode A as it offers the benefits of additional buffer between the ignition and the Aura, and working receiver ports for the throttle, choke, and ignition which driven directly by the receiver's failsafe.

Traditional PWM Servo Connection

PWM (Servo Leads) connect the each channel on your Receiver directly to each Servo Port on the Aura.

  • Recommended for all aircraft types.
  • Supports virtually every receiver
  • Limits port availability. Typically Aura will be configured with 4 inputs and 4 outputs with PWM. (8 outputs with Aura 12 Professional)
  • Some features such as QuickSetup and QuickTrim are NOT supported with PWM connections.
  • All (typically 4) PWM (servo jumper) connections MUST be present to get control of the model which is indicated by a solid green Aura LED (valid radio signal)

Installing your Aura

General information regarding Installing the Aura.

Additional information for Large Aircraft Installs.

Aura Wiki Main