Features
4-ch RS485 can work independently without affecting each other at the same time, enabling more effective data transmission
Combines multiple functions in one, including serial server, Modbus gateway, MQTT gateway, and RS485 to JSON, etc.
Adopts screw terminal for stable power input
Wall-mount and rail-mount case design, easy to install, for quick deployment and expansion

Specifications
Product Type: Serial server, Modbus Gateway, MQTT Gateway
Basic Function: Bi-directional transparent data transmission between RS485 and Ethernet
Communication interface: RS485 port x 4, Ethernet port x 1
Power supply: DC 6 ~ 45V screw terminal
Isolation Protection: Power isolation, Signal isolation

1. Communication
Ethernet: RJ45, 10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection
Serial port: Isolated RS485 (the 4 channels can receive and transmit independently at the same time)

2. Serial specification
Baudrate: 300 ~ 115200 bps
Parity bit: none, odd, even, mark, space
Data bit: 5 ~ 9 bits

3. Software
Protocol: ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS
Configuration: host, web browser, device management functions library
Communication method: TCP/IP direct communication, VCOM
Operating mode: TCP server, TCP client (coexisting with TCP server), UDP, UDP multicast

4. Others
Operating temperature: -40℃ ~ 85℃
Humidity range: 5% ~ 95% relative humidity
Dimensions : L × W × H: 91.0 × 64.5 × 24.2 mm

Online Tutorial and Online Development Resource is provided: n9.cl/dth5k

Package Content
4-CH RS485 TO ETH (B) x1
Rail-mount buckle x1
Screwdriver x1
Screws pack x1