RS232/485/422 TO POE ETH (B) Adapter (23626)
RS232/485/422 TO POE ETH (B) Adapter (23626)
SKU: 2669
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Description
Industrial Isolated RS232/485/422 to Ethernet Serial Server with DIN Rail Mount
RS232/485/422 to RJ45 Ethernet conversion module with TCP/IP support and optional PoE function. Designed for industrial environments: data acquisition, IoT gateway, security, and intelligent instrument monitoring.
Features Overview
This device is an RS232/485/422 data collector and IoT gateway for industrial applications. It combines multiple functions in one unit: serial server, Modbus gateway, MQTT gateway, RS485 to JSON conversion, etc. The module is equipped with RS232/485/422 ports and an Ethernet port (PoE function optional), powered via a DC connector (outer diameter: 5.5mm, inner: 2.1mm) or screw terminals. The DIN-rail mountable enclosure is compact, easy to install, and cost-effective.
- Serial server + Modbus gateway + MQTT gateway in one device
- On-board RS232, RS485, and RS422 interfaces
- 10/100 Mbps auto-negotiating Ethernet port, RJ45 connector
- Optional PoE support (IEEE 802.3af standard)
- Galvanic isolation for power and signal (in relevant versions)
- DIN-rail mount, compact aluminum enclosure
- Wide operating temperature range: -40°C … +85°C
Versions
RS232/485/422 TO ETH (B)
Standard network port + galvanic isolation
RS232/485/422 TO POE ETH (B)
PoE network port + galvanic isolation
Technical Specifications
| RS485 TO ETH (B) | RS485 TO POE ETH (B) | RS232/485/422 TO ETH (B) | RS232/485/422 TO POE ETH (B) | |
|---|---|---|---|---|
| Standard network port | PoE network port + galvanic isolation | Multi-interface + standard network port + galvanic isolation | Multi-interface + PoE network port + galvanic isolation | |
| Device Type | Serial server, Modbus gateway, MQTT gateway | |||
| Main Function | Bidirectional transparent data transmission between RS485 and Ethernet | Bidirectional transparent data transmission between RS232/485/422 and Ethernet | ||
| Communication Interfaces | RS485 × 1, Ethernet × 1 | RS232 × 1; RS485 × 1; RS422 × 1; Ethernet × 1 | ||
| Power Supply | Screw terminal 9–24 V DC | Screw terminal 6–36 V DC or PoE port | DC jack, screw terminal 6–36 V DC | DC jack, screw terminal 6–36 V DC or PoE port |
| Galvanic Isolation | None | Power and signal isolation | ||
| Communication | ||||
| Ethernet | Standard network port | PoE network port, IEEE 802.3af supported | Standard network port | PoE network port, IEEE 802.3af supported |
| 10/100 Mbps auto-negotiation, RJ45 connector, 2KV surge protection | ||||
| Serial Port | RS485 | Isolated RS485 | Isolated RS232/485/422 | |
| Serial Port Parameters | ||||
| Baud Rate | 300 – 115200 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, web browser, device management function library | |||
| Communication Method | Direct TCP/IP connection, VCOM | |||
| Operating Modes | TCP server, TCP client (concurrent with TCP server), UDP, UDP multicast | |||
| Operating Conditions | ||||
| Operating Temperature | -40°C … +85°C | |||
| Humidity | 5% – 95% relative humidity | |||
| Dimensions (L × W × H) | 87 × 36 × 59 mm | 88.7 × 72.5 × 24.2 mm | ||
Main Function
Bidirectional transparent data transmission between RS232/485/422 and Ethernet.
Three Different Interfaces
Built-in RS232, RS485, and RS422 interfaces — for broader application scenarios.
The Ethernet port can send data to all three serial ports simultaneously.
Only one of the RS232, RS485, or RS422 ports can send data to the Ethernet port at a time.
Multiple Power Supply Methods
- Power over PoE Ethernet port* — IEEE 802.3af standard support
- Power via screw terminal or DC jack: 6–36 V DC, wide voltage range
* PoE function is only available in the PoE-enabled version.
DIN Rail Mount
Conveniently combine multiple serial servers on the rail — flexible and effortless.
Modbus Gateway Support
Suitable for Modbus network upgrades. Can be used with dedicated configuration software.
Multiple Communication Modes
Supports TCP server, TCP client, UDP, and UDP multicast.
MQTT/JSON ↔ Modbus
Flexible conversion between different protocols.
When used as an MQTT gateway, the device can transmit serial data to an MQTT server via transparent MQTT protocol transmission. Supported servers include: Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. Collected Modbus RTU data or non-standard serial data can be parsed into JSON format and packed into an MQTT packet for upload.
When used as a JSON data acquisition gateway, the device connects to measuring instruments via RS485, automatically collects data, converts it to JSON format, and sends it to the server. Modbus RTU, 645 instruments (version 97 and version 07), and various non-standard RS485 protocols are supported. The upload format is customizable via the host; the JSON upload protocol can be MQTT, HTTP POST, or HTTP GET.
Multi-Host Polling Support
Different network devices are identified and receive responses separately — without cross-interference when working with multiple network devices.
Customizable Heartbeat / Registration Packet
Simplifies cloud communication and device identification.
NTP Protocol Support
Obtain network time for serial port output or data upload.
Multiple Configuration Methods
- Configuration via web browser
- Obtain dynamic IP address via DHCP
- Connect to domain server via DNS protocol
Multi-Level Protection — Reliable and Stable
Built-in power and signal isolation ensures stable isolation voltage with high reliability and interference immunity. Built-in TVS (transient voltage suppression) effectively suppresses pulse and transient peak voltages in the circuit — protection against lightning and ESD. Built-in self-recovering fuse and protective diode ensure stable current and voltage output, protection against overload and overvoltage, and enhanced impact resistance.
Aluminum Enclosure
Sandblasted and anodized aluminum alloy enclosure. Robust and durable, stylish and pleasant to the touch.
Interface Description
Device Appearance
Dimensions
Batch Order and Customization Support
Software and hardware customization supported
Description
Industrial Isolated RS232/485/422 to Ethernet Serial Server with DIN Rail Mount
RS232/485/422 to RJ45 Ethernet conversion module with TCP/IP support and optional PoE function. Designed for industrial environments: data acquisition, IoT gateway, security, and intelligent instrument monitoring.
Features Overview
This device is an RS232/485/422 data collector and IoT gateway for industrial applications. It combines multiple functions in one unit: serial server, Modbus gateway, MQTT gateway, RS485 to JSON conversion, etc. The module is equipped with RS232/485/422 ports and an Ethernet port (PoE function optional), powered via a DC connector (outer diameter: 5.5mm, inner: 2.1mm) or screw terminals. The DIN-rail mountable enclosure is compact, easy to install, and cost-effective.
- Serial server + Modbus gateway + MQTT gateway in one device
- On-board RS232, RS485, and RS422 interfaces
- 10/100 Mbps auto-negotiating Ethernet port, RJ45 connector
- Optional PoE support (IEEE 802.3af standard)
- Galvanic isolation for power and signal (in relevant versions)
- DIN-rail mount, compact aluminum enclosure
- Wide operating temperature range: -40°C … +85°C
Versions
RS232/485/422 TO ETH (B)
Standard network port + galvanic isolation
RS232/485/422 TO POE ETH (B)
PoE network port + galvanic isolation
Technical Specifications
| RS485 TO ETH (B) | RS485 TO POE ETH (B) | RS232/485/422 TO ETH (B) | RS232/485/422 TO POE ETH (B) | |
|---|---|---|---|---|
| Standard network port | PoE network port + galvanic isolation | Multi-interface + standard network port + galvanic isolation | Multi-interface + PoE network port + galvanic isolation | |
| Device Type | Serial server, Modbus gateway, MQTT gateway | |||
| Main Function | Bidirectional transparent data transmission between RS485 and Ethernet | Bidirectional transparent data transmission between RS232/485/422 and Ethernet | ||
| Communication Interfaces | RS485 × 1, Ethernet × 1 | RS232 × 1; RS485 × 1; RS422 × 1; Ethernet × 1 | ||
| Power Supply | Screw terminal 9–24 V DC | Screw terminal 6–36 V DC or PoE port | DC jack, screw terminal 6–36 V DC | DC jack, screw terminal 6–36 V DC or PoE port |
| Galvanic Isolation | None | Power and signal isolation | ||
| Communication | ||||
| Ethernet | Standard network port | PoE network port, IEEE 802.3af supported | Standard network port | PoE network port, IEEE 802.3af supported |
| 10/100 Mbps auto-negotiation, RJ45 connector, 2KV surge protection | ||||
| Serial Port | RS485 | Isolated RS485 | Isolated RS232/485/422 | |
| Serial Port Parameters | ||||
| Baud Rate | 300 – 115200 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, web browser, device management function library | |||
| Communication Method | Direct TCP/IP connection, VCOM | |||
| Operating Modes | TCP server, TCP client (concurrent with TCP server), UDP, UDP multicast | |||
| Operating Conditions | ||||
| Operating Temperature | -40°C … +85°C | |||
| Humidity | 5% – 95% relative humidity | |||
| Dimensions (L × W × H) | 87 × 36 × 59 mm | 88.7 × 72.5 × 24.2 mm | ||
Main Function
Bidirectional transparent data transmission between RS232/485/422 and Ethernet.
Three Different Interfaces
Built-in RS232, RS485, and RS422 interfaces — for broader application scenarios.
The Ethernet port can send data to all three serial ports simultaneously.
Only one of the RS232, RS485, or RS422 ports can send data to the Ethernet port at a time.
Multiple Power Supply Methods
- Power over PoE Ethernet port* — IEEE 802.3af standard support
- Power via screw terminal or DC jack: 6–36 V DC, wide voltage range
* PoE function is only available in the PoE-enabled version.
DIN Rail Mount
Conveniently combine multiple serial servers on the rail — flexible and effortless.
Modbus Gateway Support
Suitable for Modbus network upgrades. Can be used with dedicated configuration software.
Multiple Communication Modes
Supports TCP server, TCP client, UDP, and UDP multicast.
MQTT/JSON ↔ Modbus
Flexible conversion between different protocols.
When used as an MQTT gateway, the device can transmit serial data to an MQTT server via transparent MQTT protocol transmission. Supported servers include: Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. Collected Modbus RTU data or non-standard serial data can be parsed into JSON format and packed into an MQTT packet for upload.
When used as a JSON data acquisition gateway, the device connects to measuring instruments via RS485, automatically collects data, converts it to JSON format, and sends it to the server. Modbus RTU, 645 instruments (version 97 and version 07), and various non-standard RS485 protocols are supported. The upload format is customizable via the host; the JSON upload protocol can be MQTT, HTTP POST, or HTTP GET.
Multi-Host Polling Support
Different network devices are identified and receive responses separately — without cross-interference when working with multiple network devices.
Customizable Heartbeat / Registration Packet
Simplifies cloud communication and device identification.
NTP Protocol Support
Obtain network time for serial port output or data upload.
Multiple Configuration Methods
- Configuration via web browser
- Obtain dynamic IP address via DHCP
- Connect to domain server via DNS protocol
Multi-Level Protection — Reliable and Stable
Built-in power and signal isolation ensures stable isolation voltage with high reliability and interference immunity. Built-in TVS (transient voltage suppression) effectively suppresses pulse and transient peak voltages in the circuit — protection against lightning and ESD. Built-in self-recovering fuse and protective diode ensure stable current and voltage output, protection against overload and overvoltage, and enhanced impact resistance.
Aluminum Enclosure
Sandblasted and anodized aluminum alloy enclosure. Robust and durable, stylish and pleasant to the touch.
Interface Description
Device Appearance
Dimensions
Batch Order and Customization Support
Software and hardware customization supported
