3Wire RS2LAN | Serial Device Server & Modbus Gateway
Specifications
Details
Industrial Serial to Ethernet Connectivity
Connect RS232 / RS485 / RS422 devices to TCP/IP networks with Modbus Gateway support.
3Wire RS2LAN is an advanced industrial-grade serial device server with Modbus Gateway features. It converts Modbus RTU to Modbus TCP and enables serial devices to be accessed over TCP/IP or UDP/IP networks.
It is suitable for PLCs, digital power meters, alarm sensors, PTZ camera control, automation devices and other serial equipment used in industrial and building systems.
Introduction
RS2LAN enables hosts to control RS232, RS485 and RS422 serial devices located virtually anywhere through TCP/IP or UDP/IP communication.
It connects serial devices such as PLCs, DPMs, alarm sensors and PTZ camera controls to IP networks, allowing easier remote access, monitoring and integration.
RS2LAN supports multiple operating modes including Modbus TCP Master, Modbus TCP Slave, Paired Mode and Bridge Mode. Data connection can be established through direct IP or Virtual COM operation.
Why Use RS2LAN?
Serial to Ethernet Access
Connect RS232, RS485 and RS422 devices to TCP/IP networks for remote access and integration.
Modbus Gateway
Converts Modbus RTU to Modbus TCP to support modern automation and monitoring systems.
Industrial Protection
Optical isolation on serial data lines and surge protection on Ethernet support reliable field operation.
Features
- 1500V optical isolation on RS485 / RS422 data lines
- 2kV surge protection on Ethernet port
- Supports baud rate from 1200bps to 115200bps
- Supports 5 to 9 data bits with None, Odd, Even, Mark and Space parity
- RS232 / RS485 / RS422 serial interface support
- Terminal block for RS485 / RS422 and DB9 connector for RS232
- Supports up to 256 slaves connected on RS485 / RS422 bus
- TCP Server, TCP Client, UDP and UDP Multicast modes
- Modbus TCP Gateway function for Modbus RTU to Modbus TCP conversion
- Supports 30 TCP clients in TCP Server mode
- Supports 7 destination IP addresses in TCP Client mode
- 10 / 100 Mbps Ethernet support
- Power, Link and Active LED indicators
- Heartbeat and Keep Alive functions for reliable connection
- Factory reset using external switch
- Virtual Port operation using 3Wire ComPort Emulator software
- Automatic discovery and configuration using 3Wire Device Management software
- Web browser configuration support
- Wide voltage input from 9VDC to 48VDC with dual voltage input
- Screw terminal or DC-Jack power input
- Plug-in screw terminal wiring supports AWG12 to AWG30 wires
Typical Applications
RS2LAN is designed for industrial, automation, energy monitoring and remote serial connectivity applications.
Industrial / Factory Automation
Connect PLCs, controllers, serial devices and automation equipment to Ethernet networks.
Energy Management Systems
Integrate digital power meters, energy meters and Modbus RTU devices into TCP/IP systems.
Automatic Meter Reading
Enable remote access and collection of serial meter data for AMR applications.
Building and Utility Monitoring
Support BMS, EMS, water, gas, energy and utility monitoring applications.
Surveillance Systems
Connect PTZ camera control and other serial surveillance devices over IP networks.
Remote Serial Access
Use direct IP or Virtual COM operation to access remote serial devices from host systems.
Specifications
The following table summarises the general, interface, communication, power and environmental specifications for the RS2LAN serial device server.
| Category | Item | Specification |
|---|---|---|
| General | Interface | RS485 / RS422: Terminal; RS232: DB9 |
| General | Power Supply Connector | 5.5mm plug and 2-way pluggable terminal block |
| General | Dimensions | 94 mm (L) × 65 mm (W) × 25 mm (H) |
| Interface | Ethernet | 10M / 100M Ethernet with 2kV surge protection |
| Interface | Serial | RS232 / RS485 / RS422 × 1; RXD, TXD, GND, CTS, RTS |
| Serial Parameters | Baud Rate | 1200 ~ 115200 bps |
| Serial Parameters | Data Bits | 5 bits ~ 9 bits |
| Serial Parameters | Parity | None, Odd, Even, Mark, Space |
| Serial Parameters | Flow Control | RTS / CTS, XON / XOFF, None |
| Communication | Network Communication | Direct TCP/IP and Virtual Serial Port |
| Communication | Mode | TCP Server, TCP Client, UDP, UDP Multicast |
| Communication | Modbus Gateway | Modbus RTU to Modbus TCP conversion |
| Power | Power Requirement | 9 ~ 24VDC, 80mA @ 12V; 40mA @ 24V |
| Power | Wide Voltage Input | 9VDC ~ 48VDC with dual voltage input |
| Environment | Operating Temperature | -40°C ~ 85°C |
| Environment | Storage Temperature | -45°C ~ 125°C |
| Environment | Humidity | 5 ~ 95% RH |
Product Summary
3Wire RS2LAN is an industrial-grade serial device server and Modbus Gateway designed to connect RS232, RS485 and RS422 serial devices to Ethernet networks.
With Modbus RTU to Modbus TCP conversion, multi-mode communication, Virtual COM support, industrial isolation and Ethernet surge protection, RS2LAN is a practical solution for automation, AMR, energy management and remote serial device integration.
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