DESCRIPTION
4-Ch RS485 To RJ45 Ethernet Serial Server, 4 Channels RS485 Independent Operation, Rail-Mount Industrial Isolated Serial Module, Bi-Directional Transparent Transmission, Modbus Gateway, Optional PoE Function Industrial Isolated 4-Ch RS485 To RJ45 Ethernet Serial Server

This is a multi-functional device data acquisitor / IoT gateway with 4-ch RS485 and an Ethernet port (PoE version optional), small in size, easy to install, and cost-effective. It is suitable for applications like data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring, meeting various application scenarios.

4-ch RS485 + Common network port + Electrical isolation

4-ch RS485 + PoE network port + Electrical isolation



Specifications 4-CH RS485 TO ETH (B) 4-CH RS485 TO POE ETH (B) 4-Ch RS485 + Common network port + Electrical isolation 4-Ch RS485 + PoE network port + Electrical isolation Product Type Serial server, Modbus Gateway, MQTT Gateway Basic Function Bi-directional transparent data transmission between RS485 and Ethernet Communication interface RS485 port × 4, Ethernet port × 1 Power supply DC 6 ~ 45V screw terminal DC 6 ~ 45V screw terminal, or PoE port Isolation Protection Power isolation, Signal isolation COMMUNICATION Ethernet RJ45 RJ45 with PoE support, IEEE 802.3af compliant 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) SERIAL SPECIFICATION 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 functions library Communication method TCP/IP direct communication, VCOM Operating mode TCP server, TCP client (coexisting with TCP server), UDP, UDP multicast OTHERS Operating temperature -40℃ ~ 85℃ Humidity range 5% ~ 95% relative humidity Dimensions L × W × H: 91.0 × 64.5 × 24.2 mm
Primary Function

Support Screw Terminal For Power Supply, DC 6~45V Wide Voltage Range Input


Industrial Serial Server

Modbus Gateway Support

MQTT/JSON To Modbus

When used as MQTT gateway, the devices can upload serial data to MQTT server by MQTT protocol through transparent transmission, supported servers including Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. The acquired Modbus RTU or non-standard serial data can be parsed into JSON format and packaged into MQTT data packet for uploading.

When used as JSON data acquisition gateway, the devices can be connected to data acquisition instruments through RS485 connection, then acquire data automatically, convert the data into JSON format, and finally post it to server. The acquired data supports Modbus RTU 645 instrument 97 version, 645 instrument 07 version, as well as sorts of non-standard RS485 protocols. The uploaded data format can be configured via host, and the JSON upload protocol can be MQTT protocol, HTTP POST protocol, HTTP GET protocol, and so on.

Multi Hosts Roll-Polling Support

No More Crosstalk Issue While Communicating With Multi Network Devices

User-Defined Heartbeat/Registration Packet

DNS Protocol Connected Domain Server Address

Multiple Protection, Safe And Stable

Solid And Durable, Fashion And Good Hand Feeling

Interface Introduction Product Show

4-CH RS485 TO ETH (B)


Resources & Services Selection Guide RS485 TO ETH (B) RS485 TO POE ETH (B) RS232/485/422 TO ETH (B) RS232/485/422 TO POE ETH (B) 2-CH RS485 TO ETH (B) 2-CH RS485 TO POE ETH (B) RS232 RS485 TO ETH (B) RS232 RS485 TO POE ETH (B) 4-CH RS485 TO ETH (B) 4-CH RS485 TO POE ETH (B) Description Common network port PoE network port + Electrical isolation Multi interfaces + common network port + Electrical isolation Multi interfaces + PoE network port + Electrical isolation 2-Ch RS485 + Common network port + Electrical isolation 2-Ch RS485 + PoE network port + Electrical isolation RS232 + RS485 + Common network port + Electrical isolation RS232 + RS485 + PoE network port + Electrical isolation 4-Ch RS485 + Common network port + Electrical isolation 4-Ch RS485 + PoE network port + Electrical isolation Product Type Serial server, Modbus Gateway, MQTT Gateway Serial Port Type Single serial port server RS232/485/422 choose one, single serial port server Dual serial ports server 4 serial ports server Power Supply methods Screw terminal - PoE port - PoE port - PoE port - PoE port - PoE port - DC 5.5 power port - Voltage Range DC 9~24V DC 6~36V DC 6~45V Isolation Protection Without isolation Power isolation, Signal isolation COMMUNICATION Ethernet RJ45 network port RJ45 with PoE support, IEEE 802.3af compliant RJ45 network port RJ45 with PoE support, IEEE 802.3af compliant 2-ch RJ45 network port 2-ch RJ45 with PoE support, IEEE 802.3af compliant 2-ch RJ45 network port 2-ch RJ45 with PoE support, IEEE 802.3af compliant RJ45 network port RJ45 with PoE support, IEEE 802.3af compliant 10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection Serial port RS485 Isolated RS485 Isolated RS232/485/422 (choose one, only one interface can be used for communication at the same time) 2-ch Isolated RS485 (the 2 channels can receive and transmit independently at the same time) Isolated RS232 + Isolated RS485 (the 2 channels can receive and transmit independently at the same time) 4-ch isolated RS485 (the 4 channels can receive and transmit independently at the same time) SERIAL SPECIFICATION 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 functions library Communication method TCP/IP direct communication, VCOM Operating mode TCP server, TCP client (coexisting with TCP server), UDP, UDP multicast ENVIRONMENT REQUIREMENT Operating temperature -40℃ ~ 85℃ Humidity range 5% ~ 95% relative humidity Dimensions
(L × W × H) 87.0×36.0×59.0mm 88.7×72.5×24.2mm 78.0×72.5×24.2mm 91.0×64.5×24.2mm