4-Port RS232/485/422 to Ethernet Converter | Multi-Host Gateway

Name: 4-Port RS232/485/422 to Ethernet Converter | Multi-Host Gateway
SKU: IoT-SS107
Price: 98.99 USD
Availability: InStock

This 4-port RS232/485/422 to Ethernet converter is designed for scalable industrial control systems and features dual Ethernet interfaces integrated for simple daisy-chain cascading. It provides robust Modbus protocol conversion and multi-host access and easily expands to 32 serial ports for complex data acquisition networks.

Part No. 4CH-RS232/485/422-ETH

sku : IoT-SS107

INSTANT QUOTE

Versatile 4-Port RS232/485/422 to Ethernet Converter

A comprehensive industrial IoT gateway integrating 4 independent serial ports with dual Ethernet interfaces, designed for high-density data acquisition and seamless network expansion.

4-Port RS232 485 422 to Ethernet Converter Overview

Industrial Power Supply & Modbus Gateway Support

Operates reliably on a 9~24V DC wide voltage input. The built-in Modbus gateway intelligently bridges Modbus TCP and Modbus RTU protocols, making legacy PLC networking upgrades effortless.

Industrial Power Supply and Modbus Gateway architecture

Multiple Communication Modes

Adapts to complex industrial topologies. Each of the 4 serial ports can be independently configured for TCP Server, TCP Client, UDP, or Multicast modes.

Multi-Host Concurrent Polling

Eliminates RS485 bus conflicts. Advanced arbitration allows multiple SCADA servers or HMIs to poll the same serial device concurrently without causing communication timeouts.

Multi-Master Function polling without collision

Remote Management & Edge Computing

Deploy and manage devices across vast geographical areas. Supports secure MQTT/JSON data pushing and comprehensive remote cloud configuration, bypassing local network restrictions.

MQTT JSON conversion for remote SCADA integration

Interface Diagram & Wiring Guide

4CH-RS232/485/422-ETH hardware port definitions

Dual Ethernet interfaces and serial port LED indicators

RS232 RS485 RS422 terminal wiring diagram

Outline Dimensions

Mechanical mounting dimensions and flanges

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	4× Channels. Each supports RS485 (Terminal), RS422 (Terminal), or RS232 (RJ45 port – optional DB9 cable)
Power Input	DC 9~24V (Terminal Block or 5.5mm standard power socket)
Power Consumption	5W
Serial Specifications
Baud Rate	1200 ~ 460800 bps
Data & Parity Bits	Data: 5 ~ 9 bits \| Parity: none, odd, even, mark, space
Flow Control	RTS/CTS, DTR/DCR, NONE
Software & Network
Protocols	TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS, MQTT, Modbus
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 9.2cm × W 19.7cm × H 2.5cm

Scalable Daisy-Chain Expansion

The 4CH-RS232/485/422-ETH has a built-in dual 10/100M Ethernet port design as a network switch. This allows daisy-chaining multiple gateways together with standard network cables easily. You can easily scale from 4 to 8, 16, or even up to 32 serial ports throughout your facility without the need for any external industrial Ethernet switches.

4 Independent 3-in-1 Serial Channels

It is designed for maximum compatibility and provides 4 fully independent serial channels. All channels have user selectable ‘3-in-1’ interface (RS232, RS485 or RS422). The host computer can access all 4 channels simultaneously via virtual serial port software or direct TCP/IP protocols making it ideal for distributed multi-protocol environments.

Advanced Modbus & Edge Computing

In addition to transparent TCP transmission, the device also supports native Modbus TCP to Modbus RTU gateway functions. It supports multi-host concurrent polling for smooth data acquisition from multiple SCADA clients. It also acts as an edge gateway, parsing the data and uploading it securely via MQTT.

Documents

📄 Valtoris 4CH-RS232/485/422-ETH User Manual

Utilities

⚙️ Setup Software: VirCom 7.22

Technical FAQ & Troubleshooting

How does the daisy-chain (cascading) expansion work with the dual Ethernet ports?

The dual RJ45 ports function as an integrated 10/100M Ethernet switch. You simply connect your main network uplink to Ethernet Port 1, and use a standard patch cable from Ethernet Port 2 to the next 4CH gateway in your panel. You can repeat this to easily expand your system to 8, 12, 16 or even up to 32 serial ports without ever needing to buy a separate industrial Ethernet switch.

Can I mix different serial protocols and interfaces across the 4 channels simultaneously?

Yes, of course. The 4 channels are all separate. Physically wire an RS232 device to Channel 1, an RS485 meter to Channel 2 and an RS422 sensor to Channel 3. You can also set Channel 1 as transparent TCP Server at 9600bps and Channel 2 as Modbus Gateway at 115200bps from the Web GUI.

Why does the diagram show RJ45 connectors for the RS232 interfaces?

To save space in the slim enclosure, the physical RS232 signals are routed through RJ45 sockets, not bulky DB9 connectors. Use our optional RJ45-to-DB9 adapter cable to connect your standard RS232 equipment (PLC or PC) for a clean and secure connection.

Ready to deploy? Order direct from our Official Store.

Global delivery and comprehensive technical support included.

🛒 Buy Online Now