FUTABA 12K Instruction Manual page 37

When using the S.BUS2 port, an impressive array of telemetry sensors may be utilized.
Receiver port
S.BUS
S.BUS2
（※） Don't connect S.BUS Servo,
S.BUS Gyro to S.BUS2 connector.
S.BUS servos and gyros and S.BUS2 servos and gyros must be used in the
correct receiver ports. Please refer to the instruction manual to make sure
you connect to the correct one.
S.BUS2 TABLE
S.BUS2
S.BUS Servo
S.BUS2
S.BUS Gyro
○
× （※）
Servo
Telemetry sensor
Gyro
○
○
<Before Use>
×
○
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