Details
8-Ch RS485 to Ethernet, Modbus / MQTT / JSON Support, Rail-mount Metal Case
This is an industrial-grade, multi-functional serial device data acquisitor / IoT gateway with 8-Ch RS485 and dual Ethernet ports (PoE version optional). Compact in size, easy to install, and cost-effective, it is ideal for applications like data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring, meeting various application scenarios.
- 8-ch independent RS485 ports, each configurable with different baud rates and operating without interference
- Supports TCP server, TCP client, UDP, and UDP multicast modes
- Combines multiple functions in one, including serial server, Modbus gateway, MQTT gateway, and RS485 to JSON, etc.
- Adopts screw terminal for stable power input
- Onboard dual Ethernet ports enable network switching functionality (PoE version optional)
- Multiple LEDs for real-time monitoring of device status
- Wall-mount and rail-mount case design, easy to install, for quick deployment and expansion
8-Ch RS485 TO ETH (B)
8-Ch RS485 + dual common network ports + Electrical isolation
8-Ch RS485 TO POE ETH (B)
8-Ch RS485 + dual PoE network ports + Electrical isolation
| 8-Ch RS485 TO ETH (B) | 8-Ch RS485 TO POE ETH (B) | |
|---|---|---|
| 8-Ch RS485 + dual common network ports + Electrical isolation | 8-Ch RS485 + dual PoE network ports + 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 × 8, Ethernet port × 2 | |
| Power supply | DC 7V ~ 36V screw terminal | DC 7V ~ 36V 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 connectors, 2 KV surge protection | ||
| Serial port | isolated RS485 (the 8 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: 93 × 103.5 × 29.7 mm | |
Onboard 2-ch Ethernet Ports for communication and cascade.
Either one can be used for dual serial server network communication, while the other one can be used for cascading or communication with other devices
bi-directional transparent data transmission between 8-Ch RS485 and Ethernet
Supports PoE Ethernet port power supply*, Suitable for IEEE 802.3af PoE standard;
Supports Screw Terminal for Power Supply, DC 7V~36V Wide Voltage Range Input
* This function is only available on the PoE version
Industrial Rail-mount Design, Support Wall-mount and Rail-mount Installation, Compact Size, Easy Installation, Cost-Effective
When using rail-mount installation method, you can remove the wall-mount brackets or install them on the back of the case as shown in the picture below; When using wall-mount installation, you need to remove the rail-mount buckle.
Rail-mount Installation
Wall-mount Installation
suitable for Modbus networking upgrade, Can Be Used With specific Configuration Software
supports TCP server / TCP client / UDP multicast / UDP mode
* Note: This module is 8-Channel, and each channel supports the above functions separately
more flexible conversion between different protocols
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.
different network devices will be identified and responsed respectively,
no more crosstalk issue while communicating with multi network devices
easy for cloud communication and device identification
getting network time info for serial output or data upload
supports Web browser configuration, obtaining dynamic IP via DHCP,
DNS protocol connected domain server address
Onboard power supply and signal isolation, it can provide stable isolation voltage with high reliability and strong anti-interference. Built-in TVS (transient voltage suppression tube) can effectively suppress the surge voltage and transient peak voltage in the circuit, lightningproof & ESD protection. Built-in resettable fuse and protection diode to ensure stable output of current and voltage, prevents over-current and over-voltage proof, improves shock proof performance
Aluminium Alloy Enclosure With Sand Blasting And Anodic Oxidation
Solid And Durable, Fashion And Good Hand Feeling
* for reference only, please refer to the Package Content for detailed part list
Support software and hardware customization
Including hardware interface, LOGO, label, case and web page, etc.
| Model | network port | Isolation Protection | Serial Port Type | Power Supply methods | Voltage Range | Dimensions (L × W × H) |
|---|---|---|---|---|---|---|
 RS485 TO ETH (B) |
Common network port | - | Single serial port server | Screw terminal | DC 9~24V | 87.0×36.0×59.0mm |
 RS485 TO POE ETH (B) |
PoE network port | Power isolation, Signal isolation | Single serial port server | Screw terminal + PoE port | DC 6V~36V | 87.0×36.0×59.0mm |
 RS485 TO ETH (C) |
Common network port | Power isolation, Signal isolation | Single serial port server | Screw terminal | DC 6V~36V | 87.0×36.0×59.0mm |
 RS232 TO ETH (B) |
Common network port | Power isolation, Signal isolation | Single serial port server | Screw terminal | DC 6V~36V | 87.0×36.0×59.0mm |
 RS232 TO POE ETH (B) |
PoE network port | Power isolation, Signal isolation | Single serial port server | Screw terminal + PoE port | DC 6V~36V | 87.0×36.0×59.0mm |
 RS232/485/422 TO ETH (B) |
Common network port | Power isolation, Signal isolation | RS232/485/422 choose one, single serial port server | Screw terminal + DC 5.5 power port | DC 6V~36V | 88.7×72.5×24.2mm |
 RS232/485/422 TO POE ETH (B) |
PoE network port | Power isolation, Signal isolation | RS232/485/422 choose one, single serial port server | Screw terminal + PoE port + DC 5.5 power port | DC 6V~36V | 88.7×72.5×24.2mm |
 2-CH RS485 TO ETH (B) |
Common network port | Power isolation, Signal isolation | Dual serial ports server | Screw terminal + DC 5.5 power port | DC 6V~40V | 78.0×72.5×24.2mm |
 2-CH RS485 TO POE ETH (B) |
PoE network port | Power isolation, Signal isolation | Dual serial ports server | Screw terminal + PoE port + DC 5.5 power port | DC 6V~40V | 78.0×72.5×24.2mm |
 RS232 RS485 TO ETH (B) |
Common network port | Power isolation, Signal isolation | Dual serial ports server | Screw terminal + DC 5.5 power port | DC 6V~40V | 78.0×72.5×24.2mm |
 RS232 RS485 TO POE ETH (B) |
PoE network port | Power isolation, Signal isolation | Dual serial ports server | Screw terminal + PoE port + DC 5.5 power port | DC 6V~40V | 78.0×72.5×24.2mm |
 4-CH RS485 TO ETH (B) |
Common network port | Power isolation, Signal isolation | 4 serial ports server | Screw terminal | DC 6V~40V | 91.0×64.5×24.2mm |
 4-CH RS485 TO POE ETH (B) |
PoE network port | Power isolation, Signal isolation | 4 serial ports server | Screw terminal + PoE port | DC 6V~40V | 91.0×64.5×24.2mm |
 8-CH RS485 TO ETH (B) |
Common network port | Power isolation, Signal isolation | 8 serial ports server | Screw terminal | DC 7V~36V | 93×103.5×29.7mm |
 8-CH RS485 TO POE ETH (B) |
PoE network port | Power isolation, Signal isolation | 8 serial ports server | Screw terminal + PoE port | DC 7V~36V | 93×103.5×29.7mm |
Quick Overview
8-Ch RS485 TO ETH (B)
8-Ch RS485 TO ETH (B) x1
8-Ch RS485 TO POE ETH (B)
8-Ch RS485 TO POE ETH (B) x1
