Key facts
- Brand
- FrSky
- Model
- RB-20
- Category
- Other Electronics
- Industry
- Industrial
- Documents
- 2
- Languages
- ZH · EN
- Last added
- 2023-10-15
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FrSky RB-20 Switchboard User Manual
The FrSky RB-20 is a high-performance multi-function switchboard designed for remote control model systems. It supports connections for up to 15 servos and features overload protection on each channel. The device includes integrated S.Port telemetry feedbacks that transmit voltage, current, capacity, and overload indications in real-time. This manual is written in Chinese.
Read onlineFrSky RB-20 specifications
| Recommended input voltage range | DC 4~8.4V (1~2s Lipo or 4~6s NiMH) |
|---|---|
| Number of servos supported | up to 15 |
| Operating temperature | -20°C~75°C |
| Weight | 37g |
| Dimensions | 77×43×22mm |
All FrSky RB-20 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the maximum continuous current output per channel?
The allowed continuous current output on CH1~CH15, S.PORT, RX 1IN, RX 2IN is 5A.
What happens if the current exceeds 10A?
When the continuous current is over 10A, the RB-20 will activate overload protection immediately.
How do I set the servo signal output period?
Connect CH1 and CH2 with a jumper, power on until the GREEN LED flashes quickly to synchronize, then disconnect both the jumper and power supply.
Can I use different batteries for dual power?
Yes, application of batteries with different capacity, number of cells and chemistry type is allowed.