JETI EXBUS

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EXBUS is a very versatile protocol. Not only it can send control data to the flybarless system, it can also be used to transmit telemetry data and even display menu on the radio or JETI box. You can connect the EXBUS data line at different ports at your MICROBEAST or NANOBEAST. Make sure that the receiver output is set to EXBUS (not UDI, SPPM or else).


Connection scheme


EXBUS connection options
Port Telemetry JETIBox menu
DI1 no no
SYS yes yes
DI2 yes yes



Using EXBUS to control your helicopter is possible with any of the BEASTX devices. Connect the receiver's EXBUS port with the DI1 / IO1 port of your BEASTX system using one of the provided standard servo wires.

The ESC or throttle servo is connected at CH5 / IO2 output.

For bi-directional telemetry connect the EXBUS signal wire either to the SYS port or to the DI2 port of your MICROBEAST PLUS / ULTRA. When using the DI2 port an adapter from standard servo connector to 5-pin JST is required.

MICROBEAST PLUS
The ESC or throttle servo is connected at DI1 port. If needed the telemetry data line from the ESC is connected to the CH5 port.


MICROBEAST ULTRA
The ESC or throttle servo is connected at IO1 port. If needed the telemetry data line from the ESC is connected to the IO2 port.


NANOBEAST
The ESC or throttle servo is connected at CH1 port.



BEASTX setup

In order to use your EXBUS receiver you have to scan the input type in the RECEIVER MENU of your BEASTX device and set the correct channel ordering for your radio system. By default the BEASTX system has a preset channel order that fits to most JETI radios. If needed you can change the channel ordering in RECEIVER MENU of the BEASTX system.

JETI default channel order
Channel Function
CH1 Throttle
CH2 Roll / Aileron
CH3 Pitch / Elevator
CH4 Thrust / Collective
CH5 Rudder
CH6 Gain
CH7 AttitudeControl (optional)
CH8 Governor (optional)
CH9 Aux channel (optional)

(The optional functions are described in the section Optional features.)