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Summary of Contents for Foxtech RB20
- Page 1 RB20 Signal Relay user manual V2.1 2019.1 www.chinowing.com...
- Page 2 Product List ......................4 Using Instructions ....................5 Ground Unit Diagram ..................5 Air Unit Diagram ....................6 RB20 Indicators ..................... 8 RB20 Connection Diagram ................9 Configuration Parameter ..................9 Out-of-Control Protection Setting ............. 12 Firmware Upgrade ..................... 12 FAQ .
- Page 3 P P P r r r o o o d d d u u u c c c t t t N N N o o o t t t e e e s s s Input voltage of RB20 ground and air unit is DC7.4 - 12V(lipo 2s - 3s)，please strictly follow this parameter to power the module.
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Page 4: Main Module
B B B r r r i i i e e e f f f I I I n n n t t t r r r o o o d d d u u u c c c t t t i i i o o o n n n RB20 Signal Relay is designed to work with radio controller to achieve the long range requirements. - Page 5 U U U s s s i i i n n n g g g I I I n n n s s s t t t r r r u u u c c c t t t i i i o o o n n n s s s RB20 has 2 signal outputs: S-BUS and Serial port.if your remote controller or receiver not support S-BU S, so you need to buy a PWM to S-BUS module.
- Page 6 RC Receiver www.foxtechfpv.com...
- Page 7 T he flight control is connected normally ,indicating that the RB20 digital transmission link is connected. If the connection fails, please check the following points. 1.The baud rate of the flight controller is same as the baud rate of RB20 . 2.Ensure that the RB20 ground unit driver is installed successfully.
- Page 8 R R R B B B 2 2 2 0 0 0 I I I n n n d d d i i i c c c a a a t t t o o o r r r s s s ①S-BUS data indicator L1 L1 flashs means that the remote control has data transmission, and no flashing means that the remote control has no data transmission.
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Page 9: Parameter Configuration
Parameter Configuration The parameters have been set at the factory and you should be able to use RB20 directly. In the following situations, you may need to modify the RB20 parameters: 1.The flight control baud rate is inconsistent with the RB20 preset baud rate. - Page 10 2、According to Pic.1 and Pic.2，connect ground unit to PC or connect air unit to PC. Data cable for air unit: white cable connect to TX, black cable-GND, green cable-RX. Pic. 1 Air unit connected to Configuration Software Pic.2 Ground unit connected to Configuration Software www.foxtechfpv.com...
- Page 11 3、Use the matching assistant software, select the corresponding port and click the connection to read the parameters, as shown in the figure below. 4、If you want to modify the parameters, just change the corresponding value in the software, click on the Write, and then Confirm, as shown below. 5、After the modification is completed, press the Set button again or power up again to exit the configuration mode.
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Page 12: Firmware Upgrade
N N N o o o t t t e e e : : : By default, the RB20 has no out-of-control protection value output. While using RB20, please select the GCS Protection function, so when the aircraft does not receive the S-BUS signal from the ground , the aircraft will automatically trigger and return home. - Page 13 2 . connect to USB port or TTL port through a USB cable or data cable, Press and hold the S et button and power on, then the L2 light is always on.Then press and hold the S et button again until L1 and L2 are always on a nd the software displays the port number at the same time, it indicat es that the upgrade mode is entered.
- Page 14 4 . Click the Start button, until it prompts that the firmware writing operation is completed, that means the upgrade is successful. F F F A A A Q Q Q 1：receiver S-BUS has signal output but can not connect the serial port, or transmission signal garbled.
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