Interface Definition

Instruction Description

1	Power Interface	Power requirement: 18-53V, 10W
2	S.BUS Interface
3	UART1 Interface	3.3V TTL-level main serial port, bidirectional passthrough with the remote controller's main serial port (FTDI)
4	UART2 Interface	3.3V TTL-level main serial port, bidirectional passthrough with the remote controller's main serial port (FTDI).
5	Ethernet Interface	100M Ethernet port. User network devices must use IP addresses in the 192.168.1 subnet, and must not occupy 192.168.1.1, 192.168.1.111, or 192.168.1.112
6	RF Connection Indicator	Green LED illumination indicates successful data link establishment
7	MMCX Antenna Interface	50Ω impedance

OneVDLink R17 Specifications

Parameter	Value
Dimensions	62.5×74×15.6mm
Weight	Approx. 84g
Input Voltage	18~53V
External Interfaces	S.BUS x1, UART x2, 100M Ethernet x1
RF Interfaces	MMCX x2
Operating Frequency	1430~1444MHz
Max Effective Range	17km@2Mbps (downlink)(uninterfered/unobstructed)
Power Level	25±2dBm
Encryption	Aes128
Modulation	COFDM
Transmission Mode	Dual-antenna MIMO
Frequency Hopping	Supported
Serial Port Latency	<50ms
Boot Time	<15s (power-on to link-ready)
Total Serial Bandwidth	115200bps
Max Downlink Rate	15Mbps
Max Uplink Rate	10Mbps

Wiring Instructions

Secure the module to the aircraft or other equipment using the 4x M2 screw holes on the back of the sky-end module, and connect cables as shown in the diagram below.

Notes:

Users must prepare their own soldering iron and solder for wiring. Ensure soldered joints are secure and free from open circuits or shorts during soldering.
This product generates significant heat. Do not touch it directly without external heat dissipation.
Avoid prolonged use of the module in environments without external heat dissipation, as this may cause product damage.
When installing sky-end antennas:
- Maintain a minimum spacing of 100mm between the cylindrical sections of the two antennas for optimal communication performance.
- Keep antennas as far away as possible from metal or carbon fiber components.
- Ensure antennas remain unobstructed during flight.

Firmware Upgrade

Follow these steps to upgrade the Sky-End module:

Connect the Sky-End upgrade cable between the remote controller’s AUX interface and the Sky-End module’s UART1 interface. Connect the remote controller to a PC using a Type-C data cable.
Power on the remote controller and supply power to the Sky-End module.
Launch the CwGcs2BaseMainPC software. After connecting to the remote controller, set the auxiliary serial port mode to CDC<=>AUX.
Open the CwGcs2RoverPC software, click "Open Firmware", and select the Sky-End firmware file.
Click "Start Upgrade" and wait until the software displays a success message at the bottom.

Dimensional Diagram