2-Port RS232/485/422 to Ethernet Converter | Dual LAN Modbus Gateway

Name: 2-Port RS232/485/422 to Ethernet Converter | Dual LAN Modbus Gateway
SKU: IoT-SS104
Price: 48.99 USD
Availability: InStock

Designed for versatile industrial networking, this 2-port RS232/485/422 to Ethernet converter integrates seamless Modbus RTU/TCP conversion and multi-host concurrent polling to upgrade your legacy serial equipment to modern IP networks.

Part No. 2CH-RS232/485/422-ETH

sku : IoT-SS104

INSTANT QUOTE

Versatile 2-Port RS232/485/422 to Ethernet Converter

Integrates Modbus and MQTT gateway functionalities with a flexible 3-in-1 serial interface, designed to seamlessly upgrade industrial serial devices to modern Ethernet networks.

2-Port RS232 485 422 to Ethernet Converter overview features

Industrial Power Supply & Modbus Gateway Support

Features a robust 9~24V DC industrial power input. The built-in Modbus gateway autonomously translates Modbus TCP queries from SCADA systems into Modbus RTU commands for legacy instruments.

Industrial Power Supply and Modbus Gateway structure

Multiple Communication Modes

Highly adaptable to your network topology. Supports TCP Server, TCP Client, UDP, and UDP Multicast modes, ensuring flexible integration with various host software platforms.

Multi-Host Concurrent Polling

Advanced bus arbitration allows multiple SCADA servers or PLCs to access the same serial devices simultaneously, effectively eliminating RS485 data collision and communication timeouts.

Multi-Master Function polling without collision

Multi-host concurrent data routing process

Versatile Configuration Modes

Manage your device with ease. Supports configuration via an intuitive Web browser interface, VirCom utility software, and device management library for seamless initial setup and maintenance.

Multi Configuration mode via Web and VirCom

Interface Diagram & Wiring Guide

Hardware interface diagram with LED indicators

Power supply terminal and serial port wiring

Outline Dimensions

Selection guide

Model	Serial Port Type	Power Supply	Voltage Range	Dimensions (L × W × H)
1CH-RS485-ETH	Single serial port server	Screw terminal	DC 9~24V	893759mm
1CH-RS232/485/422-ETH (V)	RS232/485/422 choose one, single serial port server	Screw terminal + DC 5.5 power port	DC 9~24V	946525mm
1CH-RS232/485/422-ETH	RS232/485/422 choose one, single serial port server	Screw terminal + DC 5.5 power port	DC 9~24V	946525mm
2CH-RS485-ETH	Dual serial ports server	Screw terminal	DC 9~24V	378389mm
2CH-RS485-ETH(V)	Dual serial ports server	Screw terminal	DC 9~24V	15010541mm
2CH-RS232/485/422-ETH	RS232/485/422 choose one, Dual serial ports server	Screw terminal + DC 5.5 power port	DC 9~24V	946525mm
4CH-RS485-ETH (V)	4 serial ports server	Screw terminal	DC 9~24V	15010541mm
4CH-RS485-ETH	4 serial ports server	Screw terminal	DC 9~24V	378389mm
4CH-RS232/485/422-ETH	RS232/485/422 choose one, 4 serial ports server	Screw terminal + DC 5.5 power port	DC 9~24V	9219725mm
8CH-RS485-ETH (V)	8 serial ports server	Screw terminal	DC 9~24V	27010526mm
8CH-RS485-ETH	8 serial ports server	Screw terminal	DC 9~24V	378389mm
8CH-RS232/485-ETH	8 serial ports server	Screw terminal + DC 5.5 power port	DC 9~24V	27010526mm
16CH-RS232/485/422-ETH	16 serial ports server	AC 220V power port	AC 220V	48018044mm
32CH-RS232/485/422-ETH	32 serial ports server	AC 220V power port	AC 220V	48018044mm

Hardware & Interfaces
Ethernet Port	2× 10/100M RJ45 Ports (Supports Switch/Cascading), 2KV Surge Protection
Serial Interface	2× Channels. Each channel is 3-in-1: RS485 (Terminal) / RS422 (Terminal) / RS232 (RJ45 port – optional DB9 cable)
Power Input	DC 9~24V (Terminal Block or 5.5mm DC Socket)
Power Consumption	2 ~ 4W
Serial Specifications
Baud Rate	1200 ~ 460800 bps
Data & Parity Bits	Data: 5 ~ 9 bits \| Parity: none, odd, even, mark, space
Flow Control	RTS/CTS, NONE
Software & Network
Protocols	TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS
Operating Modes	TCP Server, TCP Client, UDP, Real Com Driver (Virtual Serial)
Configuration	WEB Browser, VirCom, Device management library
Environment & Dimensions
Operating Temp.	-40°C ~ +85°C
Dimensions	L 9.4cm × W 6.5cm × H 2.5cm

3-in-1 Selectable Serial Interfaces

The 2CH-RS232/485/422-ETH gateway has very flexible connectivity. It features 2 channels, each providing a “3-in-1” hardware design, so the user can choose between RS232, RS485 or RS422 as the physical interface. It operates in full duplex and combines a transparent serial server, Modbus protocol gateway, MQTT edge client and RS232/485/422 to JSON converter in one device.

Dual Ethernet Ports for Simplified Cascading

The device has two 10/100M Ethernet interfaces, which also serve as an integrated network switch, allowing easy daisy-chain cascading. You can daisy-chain multiple serial servers using a standard network cable without having to mount an external industrial switch inside your control cabinet. This greatly reduces wiring complexity and hardware cost.

Flexible Installation & Power Options

It’s designed for industrial deployment, with a ruggedized metal chassis and support for desktop screw-hole mounting. Input power can be either industrial terminal block wiring or standard 5.5mm round hole DC adapter. 9~24V DC wide voltage input tolerance, stable performance in various industrial power environments.

Documents

📄 Valtoris 2CH-RS232/485/422-ETH User Manual

Utilities

⚙️ Setup Software: VirCom 7.22

Technical FAQ & Troubleshooting

Why does the RS232 port look like an Ethernet (RJ45) jack on the diagram?

To maintain an ultra-compact chassis footprint while offering 3-in-1 interface capabilities, the physical RS232 pins are routed through the modular RJ45 socket instead of a bulky standard DB9 connector. To connect standard RS232 equipment (like a PLC or PC), you simply use the optional RJ45-to-DB9 adapter cable.

Can I wire an RS232 device and an RS485 device to Channel 1 at the same time?

Nope. Both channels are “3-in-1 selectables”. For any single channel (i.e. Channel 1) you can physically wire and use only one interface type (either RS232, RS485 or RS422) at a time. However you can mix types across the two channels (eg Channel 1 is RS232, Channel 2 is RS485).

How does the Dual Ethernet design help with my control panel wiring?

The two 10/100M Ethernet ports are built-in unmanaged switch. This allows you to daisy chain (cascade) a number of serial servers in series with each other with standard Ethernet patch cables. You don’t need to install a separate industrial network switch inside your panel, you simply pass the network connection from one unit to the next, saving space and component costs.

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