RAK2470 WisNode Bridge Serial Prime Datasheet
Overview
Description
The RAK2470 WisNode Bridge Serial Prime is an RS485 to LoRaWAN converter designed for outdoor industrial applications. Utilizing the LoRaWAN network, RAK2470 wirelessly transmits RS485 data to and from end devices.
The RAK2470 comes with a T-type conversion cable for connecting RS485 sensors. Both the RAK2470 and the connected sensor can be powered through the DC power interface.
Its default M12-4 circular connector also supports direct connection to compatible devices such as MPPT solar charge controllers, inverters, and integrated inverter systems.
The RAK2470 can be configured and managed through IO.Box, which provides a graphical interface for configuring LoRaWAN®, RS485, and system settings.
Together with a RAKwireless gateway and LoRaWAN Network Server, the RAK2470 provides a flexible way to build or extend wireless industrial monitoring and control systems. Its IP67-rated enclosure, wide input voltage range, and pole-mounting support make it suitable for outdoor and field deployments.
Features
- Regional Parameters Version: RP001-1.0.3
- LoRaWAN 1.0.3 protocol stack, supports Class C
- Input range: 5 ~ 12 VDC
- Mounting: Pole
- IP67 weatherproof
Specifications
Main Specifications
| Parameter | Specifications |
|---|---|
| LoRa Feature | Protocol stack: LoRaWAN 1.0.3 Frequency: EU868 / IN865 / RU864 / US915 / AU915 / KR920 / AS923 / CN470 LoRaWAN mode: Class C Tx power: 22 dBm |
| RS485 Feature | Data rate: 9600, 115200 Carrying capacity: Up to 32 devices |
| Power Supply | 5-12 VDC input |
| Antenna | LoRa: Built-in fiberglass antenna Frequency: 863 ~ 928 MHz VSWR: < 2 Efficiency: > 80% Max Gain: 3 dBi |
| Enclosure Material | Fiberglass |
| Dimensions | 30 mm × 215 mm |
| Protection Grade | IP67 |
| Working Temperature | -40° C ~ +85° C |
| Storage Temperature | -40° C ~ +85° C |
| Installation method | Pole |
Hardware
The hardware specification describes the device's interfaces and parameters.
Interfaces
The RAK2470 WisNode Bridge Serial Prime comes with an M12-4 circular connector (including power and RS485 data interfaces).
The power interface needs to be powered by a DC power supply (5 ~ 12 V), and the voltage must be stable.
In addition, the RS485 host baud rate supports 9600 and 115200, and up to 32 devices can be connected.
Figure 1: M12-4 connector pin definition| Pin | Circular Connector | Description | Type |
|---|---|---|---|
| 1 | VCC | Power input (5 ~ 12 VDC) | PI (Power input) |
| 2 | RS485_A | RS485 A+ | IO (Bidirectional) |
| 3 | RS485_B | RS485 B- | IO (Bidirectional) |
| 4 | GND | Ground | PI (Power input) |
T-Type Conversion Cable
The RAK2470 comes with a 1 m T-type conversion cable for each branch. Using this conversion cable, the RAK2470 can be connected to any RS485 equipped sensors, and power can be supplied to both the RAK2470 and the connected sensor via the DC power port.
Figure 1: T-type conversion cableThe standard length of the T-type conversion cable is 1 m. If you need to customize the cable length, kindly contact inquiry@rakwireless.com.
| Interface | Pin | Description |
|---|---|---|
| L20-4 Four-core Straight-through Port | Pin1 | Connect to the positive terminal of the sensor power cord. |
| Pin2 | Connect to RS485-A of the sensor. | |
| Pin3 | Connect to RS485-B of the sensor. | |
| Pin4 | Connect to the negative terminal of the sensor power cord. | |
| M12-4 Female-pin Port | Pin1 | Power input (5 ~ 12 VDC) |
| Pin2 | RS485 A+ | |
| Pin3 | RS485 B- | |
| Pin4 | GND | |
| DC port | Power input port |




