Adapter 2-CH RS485 TO POE ETH (B) (24963)
Adapter 2-CH RS485 TO POE ETH (B) (24963)
SKU: 2636
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Description
Industrial Isolated 2-CH RS485 to Ethernet (RJ45) Server
Dual-channel RS485 to Ethernet converter for industrial environments. Both RS485 channels operate simultaneously and independently. Combines the functions of a serial server, Modbus gateway, MQTT gateway, RS485 → JSON converter, and network switch.
Features at a Glance
The device is designed for data acquisition and IoT gateway construction in industrial settings. Equipped with two RS485 ports and two Ethernet ports (PoE optional). Power supply via DC jack (5.5mm outer diameter, 2.1mm inner) or screw terminal. Compact metal housing with DIN-rail mounting — easy installation and high cost-effectiveness.
- 2 independent RS485 channels — simultaneous operation without mutual interference
- 2 Ethernet ports (PoE optional) + cascading function
- Supports Modbus RTU/TCP, MQTT, JSON, HTTP
- Galvanic isolation for power and signals
- Wide power supply range: DC 6–40V
- Industrial temperature range: −40 °C … +85 °C
- Aluminum alloy housing for DIN-rail mounting
Versions
2-CH RS485 TO ETH (B)
2 RS485 channels + normal network port + galvanic isolation
2-CH RS485 TO POE ETH (B)
2 RS485 channels + PoE Ethernet port + galvanic isolation
Technical Specifications
| 2-CH RS485 TO ETH (B) | 2-CH RS485 TO POE ETH (B) | |
|---|---|---|
| 2-CH RS485 + Normal Network Port + Isolation | 2-CH RS485 + PoE Ethernet Port + Isolation | |
| Device Type | Serial Server, Modbus Gateway, MQTT Gateway | |
| Main Function | Bi-directional transparent data transmission between RS485 and Ethernet | |
| Communication Interfaces | RS485 × 2, Ethernet × 2 | |
| Power Supply | DC jack 5.5 mm, screw terminal DC 6–40 V | DC jack 5.5 mm, screw terminal DC 6–40 V or PoE port |
| Galvanic Isolation | Power and signal isolation | |
| Communication | ||
| Ethernet | RJ45 | RJ45 with PoE support, IEEE 802.3af standard |
| 10/100 Mbps auto-negotiation, RJ45 connector, 2KV surge protection | ||
| Serial Port | Isolated RS485 (both channels can receive and transmit simultaneously independently) | |
| Serial Port Parameters | ||
| Baud Rate | 300 – 115,200 bps | |
| Parity Bit | None, odd, even, mark, space | |
| Data Bits | 5 – 9 bits | |
| Flow Control | None | |
| Software | ||
| Protocols | ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS | |
| Configuration | Host software, web browser, device management function library | |
| Communication Method | Direct TCP/IP connection, VCOM | |
| Operating Modes | TCP Server, TCP Client (simultaneous with TCP Server), UDP, UDP Multicast | |
| Operating Conditions | ||
| Operating Temperature | −40 °C … +85 °C | |
| Humidity | 5 % – 95 % relative humidity | |
| Dimensions (L × W × H) | 78.0 × 72.5 × 24.2 mm | |
Main Function: Transparent Data Transmission
Bi-directional transparent data transmission between RS485 and Ethernet without changes to the protocol.
Multiple Power Options
- Power over PoE Ethernet port* — IEEE 802.3af standard
- Power via screw terminal or DC jack: DC 6–40V (wide range)
* Note: PoE function is only available in the PoE version.
Supports Ethernet Port Cascading
Onboard 2 Ethernet ports for communication and cascading. Either can be used for serial server network communication, while the other can be used for cascading or connecting to other devices.
* Note: Each module in the cascade requires a separate power supply. Module operating current: 12V / 150mA (max). Maximum number of modules in a cascade is 8.
DIN-rail Mounting
Industrial design with DIN-rail mounting — compact size, easy installation, high cost-effectiveness.
Modbus Gateway Support
Suitable for Modbus network upgrades. Can be used with specialized configuration software.
Multiple Communication Modes
Supports modes: TCP Server / TCP Client / UDP Multicast / UDP.
* Note: The module is dual-channel — each channel supports the listed modes separately.
MQTT / JSON ↔ Modbus
Flexible conversion between different protocols.
In MQTT gateway mode, the device transmits serial data to the MQTT server via transparent transmission. Supported servers include: Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. Modbus RTU data or non-standard serial data can be parsed into JSON format and encapsulated into an MQTT packet for uploading.
In JSON data acquisition gateway mode, the device connects to measuring instruments via RS485, automatically collects data, converts it to JSON, and sends it to the server. Supported protocols include: Modbus RTU, 645 instruments (versions 97 and 07), and various non-standard RS485 protocols. The upload format is customizable via the host; MQTT, HTTP POST, and HTTP GET protocols are supported.
Supports Multi-Host Polling
Different network devices are identified and receive responses separately — without cross-interference when operating with multiple network devices.
Customizable Heartbeat / Registration Packet
Simplifies cloud communication and device identification.
NTP Protocol Support
Obtains network time for output via serial port or data upload.
Multiple Configuration Methods
Supports configuration via web browser, dynamic IP address acquisition via DHCP, connection to domain server via DNS protocol.
Multi-level Protection — Reliable and Stable
Built-in power and signal isolation provides stable isolation voltage with high reliability and anti-interference. Built-in TVS (transient voltage suppression) effectively suppresses surges and transient peak voltages — protection against lightning and ESD. Built-in self-recovering fuse and protection diode ensure stable current and voltage output, protection against overcurrent and overvoltage.
Aluminum Alloy Casing
Aluminum alloy casing with sandblasting and anodic oxidation. Sturdy and durable, stylish and pleasant to touch.
Interface Description
Device Appearance
Dimensions
Supports Batch Order and Customization
Software and hardware customization supported: hardware interfaces, logo, label, casing, web page, etc.
Model Selection Table
| Model | Network Port | Galvanic Isolation | Serial Port Type | Power Supply | Voltage | Dimensions (L × W × H) |
|---|---|---|---|---|---|---|
 RS485 TO ETH (B) |
Normal | — | 1 serial port | Screw terminal | DC 9–24 V | 87.0 × 36.0 × 59.0 mm |
 RS485 TO POE ETH (B) |
PoE | Power + signal | 1 serial port | Terminal + PoE | DC 6–36 V | 87.0 × 36.0 × 59.0 mm |
 RS485 TO ETH (C) |
Normal | Power + signal | 1 serial port | Screw terminal | DC 6–36 V |
Description
Industrial Isolated 2-CH RS485 to Ethernet (RJ45) Server
Dual-channel RS485 to Ethernet converter for industrial environments. Both RS485 channels operate simultaneously and independently. Combines the functions of a serial server, Modbus gateway, MQTT gateway, RS485 → JSON converter, and network switch.
Features at a Glance
The device is designed for data acquisition and IoT gateway construction in industrial settings. Equipped with two RS485 ports and two Ethernet ports (PoE optional). Power supply via DC jack (5.5mm outer diameter, 2.1mm inner) or screw terminal. Compact metal housing with DIN-rail mounting — easy installation and high cost-effectiveness.
- 2 independent RS485 channels — simultaneous operation without mutual interference
- 2 Ethernet ports (PoE optional) + cascading function
- Supports Modbus RTU/TCP, MQTT, JSON, HTTP
- Galvanic isolation for power and signals
- Wide power supply range: DC 6–40V
- Industrial temperature range: −40 °C … +85 °C
- Aluminum alloy housing for DIN-rail mounting
Versions
2-CH RS485 TO ETH (B)
2 RS485 channels + normal network port + galvanic isolation
2-CH RS485 TO POE ETH (B)
2 RS485 channels + PoE Ethernet port + galvanic isolation
Technical Specifications
| 2-CH RS485 TO ETH (B) | 2-CH RS485 TO POE ETH (B) | |
|---|---|---|
| 2-CH RS485 + Normal Network Port + Isolation | 2-CH RS485 + PoE Ethernet Port + Isolation | |
| Device Type | Serial Server, Modbus Gateway, MQTT Gateway | |
| Main Function | Bi-directional transparent data transmission between RS485 and Ethernet | |
| Communication Interfaces | RS485 × 2, Ethernet × 2 | |
| Power Supply | DC jack 5.5 mm, screw terminal DC 6–40 V | DC jack 5.5 mm, screw terminal DC 6–40 V or PoE port |
| Galvanic Isolation | Power and signal isolation | |
| Communication | ||
| Ethernet | RJ45 | RJ45 with PoE support, IEEE 802.3af standard |
| 10/100 Mbps auto-negotiation, RJ45 connector, 2KV surge protection | ||
| Serial Port | Isolated RS485 (both channels can receive and transmit simultaneously independently) | |
| Serial Port Parameters | ||
| Baud Rate | 300 – 115,200 bps | |
| Parity Bit | None, odd, even, mark, space | |
| Data Bits | 5 – 9 bits | |
| Flow Control | None | |
| Software | ||
| Protocols | ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS | |
| Configuration | Host software, web browser, device management function library | |
| Communication Method | Direct TCP/IP connection, VCOM | |
| Operating Modes | TCP Server, TCP Client (simultaneous with TCP Server), UDP, UDP Multicast | |
| Operating Conditions | ||
| Operating Temperature | −40 °C … +85 °C | |
| Humidity | 5 % – 95 % relative humidity | |
| Dimensions (L × W × H) | 78.0 × 72.5 × 24.2 mm | |
Main Function: Transparent Data Transmission
Bi-directional transparent data transmission between RS485 and Ethernet without changes to the protocol.
Multiple Power Options
- Power over PoE Ethernet port* — IEEE 802.3af standard
- Power via screw terminal or DC jack: DC 6–40V (wide range)
* Note: PoE function is only available in the PoE version.
Supports Ethernet Port Cascading
Onboard 2 Ethernet ports for communication and cascading. Either can be used for serial server network communication, while the other can be used for cascading or connecting to other devices.
* Note: Each module in the cascade requires a separate power supply. Module operating current: 12V / 150mA (max). Maximum number of modules in a cascade is 8.
DIN-rail Mounting
Industrial design with DIN-rail mounting — compact size, easy installation, high cost-effectiveness.
Modbus Gateway Support
Suitable for Modbus network upgrades. Can be used with specialized configuration software.
Multiple Communication Modes
Supports modes: TCP Server / TCP Client / UDP Multicast / UDP.
* Note: The module is dual-channel — each channel supports the listed modes separately.
MQTT / JSON ↔ Modbus
Flexible conversion between different protocols.
In MQTT gateway mode, the device transmits serial data to the MQTT server via transparent transmission. Supported servers include: Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. Modbus RTU data or non-standard serial data can be parsed into JSON format and encapsulated into an MQTT packet for uploading.
In JSON data acquisition gateway mode, the device connects to measuring instruments via RS485, automatically collects data, converts it to JSON, and sends it to the server. Supported protocols include: Modbus RTU, 645 instruments (versions 97 and 07), and various non-standard RS485 protocols. The upload format is customizable via the host; MQTT, HTTP POST, and HTTP GET protocols are supported.
Supports Multi-Host Polling
Different network devices are identified and receive responses separately — without cross-interference when operating with multiple network devices.
Customizable Heartbeat / Registration Packet
Simplifies cloud communication and device identification.
NTP Protocol Support
Obtains network time for output via serial port or data upload.
Multiple Configuration Methods
Supports configuration via web browser, dynamic IP address acquisition via DHCP, connection to domain server via DNS protocol.
Multi-level Protection — Reliable and Stable
Built-in power and signal isolation provides stable isolation voltage with high reliability and anti-interference. Built-in TVS (transient voltage suppression) effectively suppresses surges and transient peak voltages — protection against lightning and ESD. Built-in self-recovering fuse and protection diode ensure stable current and voltage output, protection against overcurrent and overvoltage.
Aluminum Alloy Casing
Aluminum alloy casing with sandblasting and anodic oxidation. Sturdy and durable, stylish and pleasant to touch.
Interface Description
Device Appearance
Dimensions
Supports Batch Order and Customization
Software and hardware customization supported: hardware interfaces, logo, label, casing, web page, etc.
Model Selection Table
| Model | Network Port | Galvanic Isolation | Serial Port Type | Power Supply | Voltage | Dimensions (L × W × H) |
|---|---|---|---|---|---|---|
| RS485 TO ETH (B) |
Normal | — | 1 serial port | Screw terminal | DC 9–24 V | 87.0 × 36.0 × 59.0 mm |
| RS485 TO POE ETH (B) |
PoE | Power + signal | 1 serial port | Terminal + PoE | DC 6–36 V | 87.0 × 36.0 × 59.0 mm |
| RS485 TO ETH (C) |
Normal | Power + signal | 1 serial port | Screw terminal | DC 6–36 V |
