ECU converter JetCat Version: 1.0
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2.4
Futaba S.BUS2
In contrast to the VSpeak telemetry system setting "Futaba V10", the following version supports
ALL telemetry able Futaba transmitters, which also do not support the special "JetCat V10"
sensor.
The S.BUS2 is only unidirectional, that means the sensor data is transmitted from the receiver.
It will not transmit data from the transmitter to the sensor. A parameterization of the
JetCat ECU is not possible with this system.
The VSpeak ECU converter is fully compatible with S.BUS2. Registration and connection are
established as with any other S.BUS2 sensor
Caution:
We generally recommend a strict separation between sensor values and servo data. Although
the S: BUS 2 can transmit servo data, the S.BUS2 should exclusively be used for the
transmission of sensor data and only the S.BUS1 should be used for the servos. In this way, the
servo data are excluded from influencing on failure of a sensor.
2.4.1
Registration at the transmitter
The VSpeak ECU converter must be registered on the transmitter like any S.BUS2 sensor. To
do this, the telemetry port of the VSpeak ECU converter must be connected to the "SI / F"
socket of the transmitter (for some transmitters the power supply must be connected to the
"SI / F" socket with a V cable and the receiver battery, read the operating instructions for your
transmitter). Furthermore, the ECU converter must be connected to the powered JetCat ECU or
with the Programming adapter.
Now the registration of VSpeak ECU converter can be done - please look up into the
instructions for the transmitter.
Since the VSpeak ECU converter displays its data using up to 6 sensors, the registry has also
be done up to 6 times. Of course, the starting slots can also be set manually.
2.4.2
Mapping Sensor – ECU Values
No Sensor name
Slots
Start
(default)
original
Sensor value
ECU value
1
CUR-F1678
3
24
CURRENT
Turbine status (s. section 2.4.1)
VOLTAGE
BATT
in V
CAPACITY
FUEL
in ml
(remaining fuel, s. section 2.4.4)
2
SBS-01RM/O
1
27
R.P.M
RPM
in rpm
3
SBS-01RM/O
1
(--)
R.P.M
RPM (2Shaft) in rpm
4
SBS-01V
2
28
BATTERY
PUMP
in V
EXT-VOLT
THROTTLE
in %
5
SBS-01T
1
(--)
TEMP
AIRSPEED
in km/h
6
SBS-01T
1
30
TEMP
EGT
in °C
(--) = Slot and thus sensor value deactivated
