Description
Industrial Isolated 2-CH RS485 To RJ45 Ethernet Gateway
2-CH RS485 To Ethernet, Supports Modbus/MQTT/JSON, DIN-Rail Mount, Metal Case
Features At A Glance
This is an industrial 2-CH RS485 data acquisition / IoT gateway designed for industrial environment. The two RS485 channels can work simultaneously without interfering with each other. It combines multiple functions in one: serial server, Modbus gateway, MQTT gateway, RS485 to JSON, and network switch. The module features 2x RS485 ports and 2x Ethernet ports (PoE function optional), uses DC power jack (outer diameter: 5.5mm, inner diameter: 2.1mm) and screw terminal for power input. Aluminum alloy enclosure with DIN-rail mount support, compact size, easy installation and cost-effective. Suitable for applications like data acquisition, IoT gateway, security & IoT, smart instrument monitoring.
Version Options
2-CH RS485 TO ETH (B)
2-CH RS485 + Normal Ethernet Port + Electrical Isolation
2-CH RS485 TO POE ETH (B)
2-CH RS485 + PoE Ethernet Port + Electrical Isolation
Specifications
| Parameter | 2-CH RS485 TO ETH (B) | 2-CH RS485 TO POE ETH (B) |
|---|---|---|
| Description | 2-CH RS485 + Normal Ethernet Port + Electrical Isolation | 2-CH RS485 + PoE Ethernet Port + Electrical Isolation |
| Product Type | Serial server, Modbus Gateway, MQTT Gateway | |
| Basic Function | Bidirectional transparent data transmission between RS485 and Ethernet | |
| Communication Interface | RS485 port × 2, Ethernet port × 2 | |
| Power Supply | 5.5mm DC power jack, 6~40V DC screw terminal | 5.5mm DC power jack, 6~40V DC screw terminal or PoE port |
| Isolation Protection | Power Isolation, Signal Isolation | |
| Communication | ||
| Ethernet | RJ45 | RJ45 with PoE enabled, IEEE 802.3af compliant |
| Standard | 10/100M auto-negotiation, RJ45 connector, 2KV surge protection | |
| Serial Port | Isolated RS485 (2 channels can send and receive independently at the same time) | |
| Serial Port Parameters | ||
| Baudrate | 300 ~ 115200 bps | |
| Parity Bit | None, Odd, Even, Mark, Space | |
| Data Bit | 5 ~ 9 bits | |
| Flow Control | N/A | |
| Software | ||
| Protocol | ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS | |
| Configuration | Host, Web browser, device management function library | |
| Communication Method | TCP/IP direct communication, VCOM | |
| Operating Mode | TCP Server, TCP Client (coexisting with TCP Server), UDP, UDP Multicast | |
| Environmental Requirements | ||
| Operating Temperature | –40 °C ~ 85 °C | |
| Humidity Range | 5% ~ 95% RH | |
| Dimensions | L × W × H: 78.0 × 72.5 × 24.2 mm | |
Basic Function
Bidirectional transparent data transmission between RS485 and Ethernet
Multiple Power Supply Options
Supports PoE network port power supply*, complies with IEEE 802.3af PoE standard
Supports screw terminal and DC power jack for power input, 6~40V DC
Wide range voltage input
* This function is only available in the PoE version
Supports Ethernet Port Cascading
Onboard 2-ch Ethernet ports for communication and cascading
One can be used for serial server networking communication, and the other can be cascaded or communicated with other devices
* Note: Each module in the cascade needs to be powered separately. The module's working current is 12V/150mA (MAX) and can be cascaded up to 8.
Supports DIN-Rail Mounting
Industrial-grade rail design, compact size, easy installation, cost-effective
Supports Modbus Gateway
Suitable for Modbus network upgrade, can be used with corresponding configuration software
Multiple Communication Modes
Supports TCP Server / TCP Client / UDP Multicast / UDP Mode
* Note: This module is dual-channel, and each channel supports the above functions separately
MQTT/JSON To Modbus
More flexible conversion between different protocols
When used as an MQTT gateway, devices can upload serial port data to the MQTT server through the MQTT protocol via transparent transmission. Supported servers include Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, and others. The received Modbus RTU data or non-standard serial port data can be parsed in JSON format and packaged into an MQTT data packet for uploading.
When used as a JSON data acquisition gateway, devices can be connected to data acquisition instruments through RS485 connections, then automatically collect data, convert the data to JSON format, and finally publish it to the server. The acquired data supports Modbus RTU 645 version 97 instrument, 645 version 07 instrument, as well as various non-standard RS485 protocols. The uploaded data format can be customized through the host, and the JSON upload protocol can be MQTT protocol, HTTP POST protocol, HTTP GET protocol, etc.
Supports Multi-Host Polling
Different network devices will be identified and responded to accordingly,
No more crosstalk problem when communicating with multiple network devices
Custom Heartbeat/Registration Packet
Easy for cloud communication and device identification
Supports NTP Protocol
Acquires network time information for serial output or data upload
Multiple Configuration Methods
Supports web browser configuration, obtains dynamic IP address via DHCP,
DNS protocol for connecting to domain server address
Multiple Protection, Safe And Stable Operation
Onboard power isolation and signal isolation, can provide stable isolated voltage with high reliability and strong anti-interference. Built-in TVS (Transient Voltage Suppressor) tube can effectively suppress surge voltage and transient peak voltage in the circuit, lightning proof and ESD protection. Built-in resettable fuse and protection diode to ensure stable current and voltage output, prevent overcurrent and overvoltage, improve shock resistance performance
Aluminium Alloy Enclosure
Aluminium alloy enclosure with sandblasting and anodic oxidation process
Solid and durable, fashionable and nice touch feeling
Interface Introduction
Product Show
Outline Dimensions
Supports Batch Customization
Supports software and hardware customization
Including hardware interface, LOGO, label, case, and web page, etc.
Model Selection Guide
| Model | Network Port | Isolation Protection | Serial Port Type | Power Supply Methods | Voltage Range | Dimensions (L × W × H) |
|---|---|---|---|---|---|---|
RS485 TO ETH (B) |
Normal Ethernet |
