
Industrial grade, higher stability and reliability








Interface Diagram

Outline dimensions

Selection guide
Designed to streamline complex SCADA architectures, this high-density 8-port RS485 edge node consolidates massive serial data streams into a single Ethernet uplink, significantly reducing hardware footprint within central control cabinets.











| Product model | 2CH-RS485-ETH | 4CH-RS485-ETH | 8CH-RS485-ETH | |
| Product Type | Serial server, Modbus Gateway, MQTT Gateway | |||
| Main Function | Bi-directional transparent data transmission between RS485 and Ethernet | |||
| Interface | RS485 port x 2, Ethernet port x 1 | RS485 port x 4, Ethernet port x 1 | RS485 port x 8, Ethernet port x 1 | |
| Power supply | 9 ~ 24V DC screw terminal | |||
| Communication | ||||
| Ethernet | RJ45 port, 10M/100M, support automatic cross-cable detection (MDI/MDIX) | |||
| Serial port | 2xRS485 | 4xRS485 | 8xRS485 | |
| Serial specification | ||||
| Baudrate | 300~921600bps | |||
| Parity bit | none, odd, even, mark, space | |||
| Data bit | 5 ~ 9 bits | |||
| Flow control | None, soft flow | |||
| Software | ||||
| Protocol | Modbus TCP, MQTT, JSON, RealCom protocol, HTTP | |||
| Configuration | VirCom, WEB browser, device management library | |||
| Communication method: | TCP/IP direct communicate, Virtual serial | |||
| Operating mode | TCP server, TCP client, UDP, UDP multicast | |||
| POWER REQUIREMENT | ||||
| Input voltage | 9~24V DC | |||
| Input current | 30mA@12V DC | |||
| EMC Electromagnetic compatibility | electrostatic (GB/T17626.6-2018) : contact 8KV, non-contact 15KV;Fast group pulse (GB/T17626.4-2018) : power ±4KV, signal ±2KV;Surge (GB/T 17626.5-2008) : power supply ±4KV, signal ±2KV | |||
| Environment | ||||
| Operating temperature | -40~85℃ | |||
| Storage temperature | -45~120℃ | |||
| Humidity range | 5~95% relative humidity | |||
2CH-RS485-ETH, 4CH-RS485-ETH, and 8CH-RS485-ETH are RS485 IoT gateways specifically designed for industrial environments. It integrates multiple functions, including a serial server, Modbus gateway, MQTT gateway, and RS485 to JSON converter.
It has 2, 4 & 8 RS485 ports to choose from and an Ethernet port. It adopts DIN rail installation mode, which is easy to install. Compared with the traditional desktop serial port server, the width is reduced to about 1/4 of the original compact size. Adopt terminal-type power supply access with a 9 ~ 24V wide voltage input.