RAK7434 WisNode Bridge Analog Datasheet

Overview

Description

RAK7434 WisNode Bridge Analog is a 0-5 V analog to LoRaWAN converter designed for industrial applications. It can read values from devices supporting the current loop.

RAK7434 can operate in all of the LoRaWAN bands within the standard parameters defined by the LoRa Alliance. Its line of sight range is 15+ km and in industrial cases, where there are heavy obstructions in the path of the RF signal performance is improved compared to conventional wireless systems due to the characteristics of LoRa as a modulation technique. This allows for consistently good signal quality within large factories, densely populated offices, storehouses, etc.

Together with the RAK gateway and LoRa Server products, it can easily and quickly build a wireless industrial system or extend an already existing one. It adopts industrial protection design, supports a wide range voltage supply supports wall mounting and DIN rail installation and facilitates field installation and use.

Features

LoRaWAN 1.0.3 protocol stack, supports Class A, B, and C modes
Low power consumption mode, wakes up regularly to collect analog input data and report
0-5 V acquisition accuracy 5 mV, error range 0.1%
Remote management function
Supports active query function - the remote server sends query commands to read 0-5 V analog data
Supports external LoRa antennas
Maximum LoRa transmission power: 20 dBm
IP31 protection
Mounting: Wall mounting, DIN rail, & Magnetic installation

Specifications

Networking Applications

The RAK7434 WisNode Bridge Analog converts 0–5 V analog signals into digital data through its ADC and transmits the data over a LoRaWAN® network through a standard LoRaWAN gateway.

This allows conventional analog sensors and devices to be integrated into wireless monitoring systems without requiring long-distance signal cabling.

Figure 1: RAK7434 WisNode Bridge Analog network structure

Technical Specifications

The following table lists the main technical specifications of the RAK7434 WisNode Bridge Analog.

Parameter	Value	Remarks
LoRaWAN Protocol	LoRaWAN 1.0.3
LoRa Frequency	RU864, IN865, EU868, US915, AU915, KR920, KR923	Different models support different frequency bands
LoRaWAN Mode	Class A / B / C
LoRa Tx Power	20 dBm
LoRa Antenna Interface	RP-SMA Female, External Omnidirectional Antenna
0–5 V Input	2 inputs/channels
0–5 V Input Interface Range	0–24 mA	Verify this value and unit
Interface Protection	18 kV HBM protection
Interface Protection	13 kV IEC 61000-4-2 contact discharge
Interface Protection	4 kV IEC 61000-4-4 fast transient burst
Input Voltage	12–24 V	5 V for Micro USB
Rated Power	Maximum 1 W
Output Voltage	12 V_DC
Configuration Interface	Micro USB
Indicator LED	Power LED, Data LED
Housing Material	Metal
Dimensions	93.6 × 100.3 × 24 mm
Protection Grade	IP31
Installation	Wall mounting, DIN rail mounting, magnetic mounting	Magnetic mounting requires optional accessories
Operating Temperature	-30° C to 65° C
Storage Temperature	-40° C to 85° C

Hardware

This section describes the hardware interfaces, power supply, configuration interface, and indicators of the RAK7434 WisNode Bridge Analog.

Interfaces

Figure 1: RAK7434 WisNode Bridge Analog bottom panel

Power Supply and Configuration Interface

The RAK7434 WisNode Bridge Analog can be powered through either the DC terminal or the Micro USB port.

DC terminal: Supports 12–24 VDC input. The rated power of the device is 1 W.
- Connect Vin to the positive terminal of the power supply.
- Connect GND to the negative terminal of the power supply.
Micro USB port: Supports 5 V / 500 mA DC input and can also be used as the device configuration interface.

Reset Key and Indicator LEDs

Item	Description
Reset Key	Press briefly to restart the device.
Red LED	Power indicator. Active only when the device is powered through USB.
Green LED	System activity indicator. Flashes during data transmission.