Adapter RS232 TO ETH (B) (23950)
Adapter RS232 TO ETH (B) (23950)
SKU: 1112
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Description
Industrial RS232 Serial Server → Ethernet (RJ45)
Industrial RS232 Serial Server to RJ45 Ethernet, TCP/IP to Serial Interface, supports DIN-rail mounting, optional PoE function.
RS232 → Ethernet (RJ45) Module
DIN-rail mountable serial server
Version Options
RS232 TO ETH (B)
Regular Ethernet Port
RS232 TO POE ETH (B)
PoE-enabled Ethernet Port
Both versions are identical in software functions. RS232 TO POE ETH (B) is a hardware-enhanced version supporting power over PoE Ethernet port.
Key Features
This device is an RS232 data collector / IoT gateway for industrial environments. It combines multiple functions in one enclosure: serial server, Modbus gateway, MQTT gateway, RS232 to JSON conversion, etc. The module is equipped with RS232 and Ethernet ports (PoE function is optional), and a terminal block for power connection. The DIN-rail mountable enclosure is compact and easy to install. Suitable for data collection, IoT gateways, security systems, and intelligent instrument monitoring.
Specifications
| Parameter | RS232 TO ETH (B) | RS232 TO POE ETH (B) |
|---|---|---|
| Device Type | Serial Server, Modbus Gateway, MQTT Gateway | |
| Main Function | Bidirectional transparent data transmission between RS232 and Ethernet | |
| Communication Interfaces | RS232 × 1, Ethernet × 1 | |
| Power Supply | 6–36V DC, Terminal Block | 6–36V DC, Terminal Block or PoE Port |
| Protection Isolation | Power Isolation, Signal Isolation | |
| Communication | ||
| Ethernet | Regular Network Port | PoE Network Port, IEEE 802.3af Standard |
| 10/100Mbps Auto-negotiation, RJ45 Connector, 2KV Surge Protection | ||
| Serial Port | Isolated RS232 | |
| 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 | TCP/IP Direct Connection, VCOM | |
| Operating Modes | TCP Server, TCP Client (simultaneous with TCP Server), UDP, UDP Multicast | |
| Other | ||
| Operating Temperature | -40°C … +85°C | |
| Humidity | 5%–95% RH | |
| Dimensions (L × W × H) | 87 × 36 × 59 mm | |
Main Function
Bidirectional transparent data transmission between RS232 and Ethernet
DIN-Rail Mounting
Conveniently combine multiple serial servers on one rail — maximum placement flexibility
Modbus Gateway Support
Suitable for Modbus network upgrades. Can be used with dedicated configuration software.
Multiple Communication Modes
Supports modes: TCP Server / TCP Client / UDP / 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. Received Modbus RTU data or non-standard serial data can be parsed into JSON format and packaged into an MQTT packet for upload.
When used as a JSON data collection gateway, the device connects to measuring instruments via RS232, automatically collects data, converts it to JSON format, and sends it to the server. Supported protocols include: Modbus RTU, 645 version 97 instruments, 645 version 07 instruments, and various non-standard RS232 protocols. The uploaded data format is configurable via the host; the JSON upload protocol can be MQTT, HTTP POST, or HTTP GET.
Multi-host Polling Support
Different network devices are recognized and respond separately — no cross-interference when working with multiple network devices simultaneously
Configurable 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
Supports configuration via web browser, dynamic IP address acquisition via DHCP, connection to domain server via DNS protocol
Interface Description
Product Photos
Dimensions
Resources and Support
- Wiki (RS232 TO ETH B): www.waveshare.com/wiki/RS232_TO_ETH_(B)
- Wiki (RS232 TO POE ETH B): www.waveshare.com/wiki/RS232_TO_POE_ETH_(B)
Model Selection Guide
| Model | Network Port | Protection Isolation | Serial Port Type | Power Supply Method | Voltage | Dimensions (L×W×H) |
|---|---|---|---|---|---|---|
 RS485 TO ETH (B) |
Regular | — | 1 serial port | Terminal Block | DC 9–24V | 87×36×59 mm |
 RS485 TO POE ETH (B) |
PoE | Power + Signal | 1 serial port | Terminal Block + PoE | DC 6–36V | 87×36×59 mm |
 RS485 TO ETH (C) |
Regular | Power + Signal | 1 serial port | Terminal Block | DC 6–36V | 87×36×59 mm |
 RS232 TO ETH (B) |
Regular | Power + Signal | 1 serial port | Terminal Block | DC 6–36V | 87×36×59 mm |
 RS232 TO POE ETH (B) |
PoE | Power + Signal | 1 serial port | Terminal Block + PoE | DC 6–36V | 87×36×59 mm |
 RS232/485/422 TO ETH (B) |
Regular | Power + Signal | RS232/485/422 (selectable), 1 port | Terminal Block + DC 5.5 | DC 6–36V | 88.7×72.5×24.2 mm |
 RS232/485/422 TO POE ETH (B) |
PoE | Power + Signal | RS232/485/422 (selectable), 1 port | Terminal Block + PoE + DC 5.5 | DC 6–36V | 88.7×72.5×24.2 mm |
 2-CH RS485 TO ETH (B) |
Regular | Power + Signal | 2 serial ports | Terminal Block + DC 5.5 | DC 6–40V | 78×72.5×24.2 mm |
 |
Description
Industrial RS232 Serial Server → Ethernet (RJ45)
Industrial RS232 Serial Server to RJ45 Ethernet, TCP/IP to Serial Interface, supports DIN-rail mounting, optional PoE function.
RS232 → Ethernet (RJ45) Module
DIN-rail mountable serial server
Version Options
RS232 TO ETH (B)
Regular Ethernet Port
RS232 TO POE ETH (B)
PoE-enabled Ethernet Port
Both versions are identical in software functions. RS232 TO POE ETH (B) is a hardware-enhanced version supporting power over PoE Ethernet port.
Key Features
This device is an RS232 data collector / IoT gateway for industrial environments. It combines multiple functions in one enclosure: serial server, Modbus gateway, MQTT gateway, RS232 to JSON conversion, etc. The module is equipped with RS232 and Ethernet ports (PoE function is optional), and a terminal block for power connection. The DIN-rail mountable enclosure is compact and easy to install. Suitable for data collection, IoT gateways, security systems, and intelligent instrument monitoring.
Specifications
| Parameter | RS232 TO ETH (B) | RS232 TO POE ETH (B) |
|---|---|---|
| Device Type | Serial Server, Modbus Gateway, MQTT Gateway | |
| Main Function | Bidirectional transparent data transmission between RS232 and Ethernet | |
| Communication Interfaces | RS232 × 1, Ethernet × 1 | |
| Power Supply | 6–36V DC, Terminal Block | 6–36V DC, Terminal Block or PoE Port |
| Protection Isolation | Power Isolation, Signal Isolation | |
| Communication | ||
| Ethernet | Regular Network Port | PoE Network Port, IEEE 802.3af Standard |
| 10/100Mbps Auto-negotiation, RJ45 Connector, 2KV Surge Protection | ||
| Serial Port | Isolated RS232 | |
| 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 | TCP/IP Direct Connection, VCOM | |
| Operating Modes | TCP Server, TCP Client (simultaneous with TCP Server), UDP, UDP Multicast | |
| Other | ||
| Operating Temperature | -40°C … +85°C | |
| Humidity | 5%–95% RH | |
| Dimensions (L × W × H) | 87 × 36 × 59 mm | |
Main Function
Bidirectional transparent data transmission between RS232 and Ethernet
DIN-Rail Mounting
Conveniently combine multiple serial servers on one rail — maximum placement flexibility
Modbus Gateway Support
Suitable for Modbus network upgrades. Can be used with dedicated configuration software.
Multiple Communication Modes
Supports modes: TCP Server / TCP Client / UDP / 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. Received Modbus RTU data or non-standard serial data can be parsed into JSON format and packaged into an MQTT packet for upload.
When used as a JSON data collection gateway, the device connects to measuring instruments via RS232, automatically collects data, converts it to JSON format, and sends it to the server. Supported protocols include: Modbus RTU, 645 version 97 instruments, 645 version 07 instruments, and various non-standard RS232 protocols. The uploaded data format is configurable via the host; the JSON upload protocol can be MQTT, HTTP POST, or HTTP GET.
Multi-host Polling Support
Different network devices are recognized and respond separately — no cross-interference when working with multiple network devices simultaneously
Configurable 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
Supports configuration via web browser, dynamic IP address acquisition via DHCP, connection to domain server via DNS protocol
Interface Description
Product Photos
Dimensions
Resources and Support
- Wiki (RS232 TO ETH B): www.waveshare.com/wiki/RS232_TO_ETH_(B)
- Wiki (RS232 TO POE ETH B): www.waveshare.com/wiki/RS232_TO_POE_ETH_(B)
Model Selection Guide
| Model | Network Port | Protection Isolation | Serial Port Type | Power Supply Method | Voltage | Dimensions (L×W×H) |
|---|---|---|---|---|---|---|
RS485 TO ETH (B) |
Regular | — | 1 serial port | Terminal Block | DC 9–24V | 87×36×59 mm |
RS485 TO POE ETH (B) |
PoE | Power + Signal | 1 serial port | Terminal Block + PoE | DC 6–36V | 87×36×59 mm |
RS485 TO ETH (C) |
Regular | Power + Signal | 1 serial port | Terminal Block | DC 6–36V | 87×36×59 mm |
RS232 TO ETH (B) |
Regular | Power + Signal | 1 serial port | Terminal Block | DC 6–36V | 87×36×59 mm |
RS232 TO POE ETH (B) |
PoE | Power + Signal | 1 serial port | Terminal Block + PoE | DC 6–36V | 87×36×59 mm |
RS232/485/422 TO ETH (B) |
Regular | Power + Signal | RS232/485/422 (selectable), 1 port | Terminal Block + DC 5.5 | DC 6–36V | 88.7×72.5×24.2 mm |
RS232/485/422 TO POE ETH (B) |
PoE | Power + Signal | RS232/485/422 (selectable), 1 port | Terminal Block + PoE + DC 5.5 | DC 6–36V | 88.7×72.5×24.2 mm |
2-CH RS485 TO ETH (B) |
Regular | Power + Signal | 2 serial ports | Terminal Block + DC 5.5 | DC 6–40V | 78×72.5×24.2 mm |
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