RS232 RS485 TO ETH (B) Adapter (25108)
RS232 RS485 TO ETH (B) Adapter (25108)
SKU: 1094
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Description
Industrial Isolated RS232 RS485 to RJ45 Ethernet Serial Server
Dual Channel Serial Ports to Ethernet, Modbus/MQTT/JSON Support, Rail-Mount with Metal Case
Key Features
This is a dual serial port data acquisition device / IoT gateway designed for industrial environments. 1-ch RS232 and 1-ch RS485 can work simultaneously without interfering with each other, using one Ethernet cable. It integrates multiple functions in one: serial server, Modbus gateway, MQTT gateway, RS232 & RS485 to JSON, etc. The second Ethernet port can be used as a network switch or for cascading, and the PoE* function is optional for both Ethernet ports. Provides two ways of power supply: DC port (outer diameter: 5.5mm, inner diameter: 2.1mm) and screw terminal. Small size rail-mount case, easy to install and cost-effective. Suitable for applications such as data acquisition, IoT gateway, security & IoT, smart instrument monitoring.
* This product is a PoE power receiving device (PD), it needs to be connected to a PoE power supply device and obtain power from a PSE device to work normally.
Version Options
RS232 RS485 TO ETH (B)
Dual Channel Serial Ports + Ordinary Network Port + Electrical Isolation
RS232 RS485 TO POE ETH (B)
Dual Channel Serial Ports + PoE Network Port + Electrical Isolation
Specifications
| Parameter | RS232 RS485 TO ETH (B) | RS232 RS485 TO POE ETH (B) |
|---|---|---|
| Description | Dual Channel Serial Ports + Ordinary Network Port + Electrical Isolation | Dual Channel Serial Ports + PoE Network Port + Electrical Isolation |
| Product Type | Serial server, Modbus gateway, MQTT gateway | |
| Basic Function | Bidirectional transparent data transmission between RS232 & RS485 to Ethernet | |
| Communication Interface | RS232 port × 1, RS485 port × 1, Ethernet port × 2 | |
| Power Supply | DC 5.5 port, screw terminal 6–40V DC | DC 5.5 port, screw terminal 6–40V DC or PoE port |
| Isolation Protection | Power isolation, signal isolation | |
| Communication | ||
| Ethernet | RJ45 | RJ45 with PoE enabled, compliant with IEEE 802.3af |
| Serial Port | Isolated RS232 and RS485 (2 channels can receive and transmit independently at the same time) | |
| Serial Port 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 function library | |
| Communication Method | TCP/IP direct communication, VCOM | |
| Operating Mode | TCP server, TCP client (coexist with TCP server), UDP, UDP multicast | |
| Environmental Requirements | ||
| Operating Temperature | −40 °C ~ 85 °C | |
| Humidity Range | 5% ~ 95% RH | |
| Dimensions | L × W × H: 78.0 × 72.5 × 24.2 mm | |
Basic Function
Bidirectional transparent data transmission between dual serial ports and Ethernet
Multi-Variant Power Supply Options
Supports power over Ethernet PoE port*, complies with IEEE 802.3af PoE standard
Supports screw terminal and DC power jack, 6–40V DC
Wide range voltage input
* This feature is only available on the PoE version
Support Ethernet Port Cascading
Onboard 2-ch Ethernet ports for communication and cascading
One of them can be used for dual-channel serial server network communication, and the other can be used for cascading or communicating with other devices
Note: Each module in the cascade needs a separate power supply. The working current of the module is 12V/150mA (MAX) and can be cascaded up to 8.
Rail-Mount Support
Industrial rail design, compact size, easy installation, cost-effective
Modbus Gateway Support
Suitable for Modbus network upgrade, can be used with specific configuration software
Multi-Variant Communication Modes
Supports TCP server / TCP client / UDP multicast / UDP mode
Note: This module is dual-channel, and each channel supports the above functions separately
MQTT/JSON to Modbus
More flexible conversion between different protocols
When used as an MQTT gateway, devices can upload serial data to the MQTT server using the MQTT protocol through transparent transmission, supported servers include Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. Received Modbus RTU data or non-standard serial data can be parsed in JSON format and packaged into an MQTT data packet for uploading.
When used as a JSON data acquisition gateway, devices can be connected to data acquisition instruments via RS485 connection, then automatically obtain data, convert the data into JSON format, and finally publish it to the server. The acquired data supports Modbus RTU 645 instrument version 97, 645 instrument version 07, as well as various non-standard RS485 protocols. The uploaded data format can be customized via the host, and the JSON upload protocol can be MQTT protocol, HTTP POST protocol, HTTP GET protocol, etc.
Support Multiple Host Polling
Different network devices will be identified and responded to accordingly,
No more cross-talk issues when communicating with multiple network devices
Custom Heartbeat/Registration Packet
Easy for cloud communication and device identification
NTP Protocol Support
Acquire network time information for serial output or data upload
Multi-Variant Configuration Methods
Supports web browser configuration, obtain dynamic IP address via DHCP,
DNS protocol connected to domain server address
Multi-Variant Protection, Safe And Stable
Onboard power and signal isolation, it can provide stable isolation voltage with high reliability and strong anti-interference ability. Built-in TVS (transient voltage suppression) tube can effectively suppress surge voltage and transient peak voltage in the circuit, lightning protection and ESD protection. Built-in resettable fuse and protection diode to ensure stable current and voltage output, prevent overcurrent and overvoltage, improve shock resistance performance
Aluminum Alloy Enclosure
Aluminum alloy enclosure with sandblasting and anodic oxidation
Sturdy and durable, fashionable and nice touch feeling
Interface Introduction
Product Display
Outline Dimensions
Support Batch Customization
Supports software and hardware customization
Including hardware interface, LOGO, label, case and web page, etc.
Selection Guide
| Model | Network Port | Isolation Protection | Serial Port Type | Power Supply Methods | Voltage Range | Dimensions (L × W × H) |
|---|---|---|---|---|---|---|
 RS485 TO ETH (B) |
Ordinary Network Port | — | Single serial port server | Screw terminal | DC 9–24V | 87.0 × 36.0 × 59.0 mm |
 RS485 TO POE ETH (B) |
PoE Network Port | Power isolation, signal isolation | Single serial port server | Screw terminal + PoE port | DC 6–36V | 87.0 × 36.0 × 59.0 mm |
 RS485 TO ETH (C) |
Ordinary Network Port |
Description
Industrial Isolated RS232 RS485 to RJ45 Ethernet Serial Server
Dual Channel Serial Ports to Ethernet, Modbus/MQTT/JSON Support, Rail-Mount with Metal Case
Key Features
This is a dual serial port data acquisition device / IoT gateway designed for industrial environments. 1-ch RS232 and 1-ch RS485 can work simultaneously without interfering with each other, using one Ethernet cable. It integrates multiple functions in one: serial server, Modbus gateway, MQTT gateway, RS232 & RS485 to JSON, etc. The second Ethernet port can be used as a network switch or for cascading, and the PoE* function is optional for both Ethernet ports. Provides two ways of power supply: DC port (outer diameter: 5.5mm, inner diameter: 2.1mm) and screw terminal. Small size rail-mount case, easy to install and cost-effective. Suitable for applications such as data acquisition, IoT gateway, security & IoT, smart instrument monitoring.
* This product is a PoE power receiving device (PD), it needs to be connected to a PoE power supply device and obtain power from a PSE device to work normally.
Version Options
RS232 RS485 TO ETH (B)
Dual Channel Serial Ports + Ordinary Network Port + Electrical Isolation
RS232 RS485 TO POE ETH (B)
Dual Channel Serial Ports + PoE Network Port + Electrical Isolation
Specifications
| Parameter | RS232 RS485 TO ETH (B) | RS232 RS485 TO POE ETH (B) |
|---|---|---|
| Description | Dual Channel Serial Ports + Ordinary Network Port + Electrical Isolation | Dual Channel Serial Ports + PoE Network Port + Electrical Isolation |
| Product Type | Serial server, Modbus gateway, MQTT gateway | |
| Basic Function | Bidirectional transparent data transmission between RS232 & RS485 to Ethernet | |
| Communication Interface | RS232 port × 1, RS485 port × 1, Ethernet port × 2 | |
| Power Supply | DC 5.5 port, screw terminal 6–40V DC | DC 5.5 port, screw terminal 6–40V DC or PoE port |
| Isolation Protection | Power isolation, signal isolation | |
| Communication | ||
| Ethernet | RJ45 | RJ45 with PoE enabled, compliant with IEEE 802.3af |
| Serial Port | Isolated RS232 and RS485 (2 channels can receive and transmit independently at the same time) | |
| Serial Port 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 function library | |
| Communication Method | TCP/IP direct communication, VCOM | |
| Operating Mode | TCP server, TCP client (coexist with TCP server), UDP, UDP multicast | |
| Environmental Requirements | ||
| Operating Temperature | −40 °C ~ 85 °C | |
| Humidity Range | 5% ~ 95% RH | |
| Dimensions | L × W × H: 78.0 × 72.5 × 24.2 mm | |
Basic Function
Bidirectional transparent data transmission between dual serial ports and Ethernet
Multi-Variant Power Supply Options
Supports power over Ethernet PoE port*, complies with IEEE 802.3af PoE standard
Supports screw terminal and DC power jack, 6–40V DC
Wide range voltage input
* This feature is only available on the PoE version
Support Ethernet Port Cascading
Onboard 2-ch Ethernet ports for communication and cascading
One of them can be used for dual-channel serial server network communication, and the other can be used for cascading or communicating with other devices
Note: Each module in the cascade needs a separate power supply. The working current of the module is 12V/150mA (MAX) and can be cascaded up to 8.
Rail-Mount Support
Industrial rail design, compact size, easy installation, cost-effective
Modbus Gateway Support
Suitable for Modbus network upgrade, can be used with specific configuration software
Multi-Variant Communication Modes
Supports TCP server / TCP client / UDP multicast / UDP mode
Note: This module is dual-channel, and each channel supports the above functions separately
MQTT/JSON to Modbus
More flexible conversion between different protocols
When used as an MQTT gateway, devices can upload serial data to the MQTT server using the MQTT protocol through transparent transmission, supported servers include Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. Received Modbus RTU data or non-standard serial data can be parsed in JSON format and packaged into an MQTT data packet for uploading.
When used as a JSON data acquisition gateway, devices can be connected to data acquisition instruments via RS485 connection, then automatically obtain data, convert the data into JSON format, and finally publish it to the server. The acquired data supports Modbus RTU 645 instrument version 97, 645 instrument version 07, as well as various non-standard RS485 protocols. The uploaded data format can be customized via the host, and the JSON upload protocol can be MQTT protocol, HTTP POST protocol, HTTP GET protocol, etc.
Support Multiple Host Polling
Different network devices will be identified and responded to accordingly,
No more cross-talk issues when communicating with multiple network devices
Custom Heartbeat/Registration Packet
Easy for cloud communication and device identification
NTP Protocol Support
Acquire network time information for serial output or data upload
Multi-Variant Configuration Methods
Supports web browser configuration, obtain dynamic IP address via DHCP,
DNS protocol connected to domain server address
Multi-Variant Protection, Safe And Stable
Onboard power and signal isolation, it can provide stable isolation voltage with high reliability and strong anti-interference ability. Built-in TVS (transient voltage suppression) tube can effectively suppress surge voltage and transient peak voltage in the circuit, lightning protection and ESD protection. Built-in resettable fuse and protection diode to ensure stable current and voltage output, prevent overcurrent and overvoltage, improve shock resistance performance
Aluminum Alloy Enclosure
Aluminum alloy enclosure with sandblasting and anodic oxidation
Sturdy and durable, fashionable and nice touch feeling
Interface Introduction
Product Display
Outline Dimensions
Support Batch Customization
Supports software and hardware customization
Including hardware interface, LOGO, label, case and web page, etc.
Selection Guide
| Model | Network Port | Isolation Protection | Serial Port Type | Power Supply Methods | Voltage Range | Dimensions (L × W × H) |
|---|---|---|---|---|---|---|
RS485 TO ETH (B) |
Ordinary Network Port | — | Single serial port server | Screw terminal | DC 9–24V | 87.0 × 36.0 × 59.0 mm |
RS485 TO POE ETH (B) |
PoE Network Port | Power isolation, signal isolation | Single serial port server | Screw terminal + PoE port | DC 6–36V | 87.0 × 36.0 × 59.0 mm |
RS485 TO ETH (C) |
Ordinary Network Port |
