Industrial 8 Ports Serial Ethernet Converter, Dual Ethernet Ports

Name: 8-Port RS232/485/422 to Ethernet Converter | Dual LAN Multi-Host Gateway
SKU: IoT-SS110
Price: 88.99 USD
Availability: InStock

The 8-Port RS232/485/422 to Ethernet Converter is designed for the large scale data aggregation of demanding industrial environments and includes built-in dual Ethernet interfaces for daisy chain expansion. It provides strong Modbus protocol conversion and multi-host access for large SCADA architectures.

Part No. 8CH-RS232/485-ETH

sku : IoT-SS110

INSTANT QUOTE

Enterprise-Grade 8-Port Serial to Ethernet Gateway

A high-density communication solution designed to bridge up to 8 legacy serial devices with modern Ethernet networks, ensuring reliable and transparent data acquisition.

8-Port RS232 485 422 to Ethernet Converter main features

Flexible RS485 & RS232 Combination

RS485 and RS232 interfaces can be used in combination and switched freely to match your field devices. Note: If you require the RS422 interface, please inform us before placing your order for customization.

RS485 and RS232 combination configuration

Dual Network Ports Cascading Function

Features an integrated Ethernet switch design. Easily daisy-chain multiple 8-port gateways together using standard patch cables, completely eliminating the need for external network switches inside the control cabinet.

Dual Ethernet ports cascading function switch

Overvoltage & Overcurrent Protection

Built for harsh industrial environments. The serial ports are equipped with robust hardware protection against overvoltage and overcurrent, preventing sudden electrical surges from damaging the gateway.

RS485 and RS232 overvoltage and overcurrent protection

Multiple Communication Modes

Highly adaptable routing. Each of the 8 serial ports can independently operate in TCP Server, TCP Client, UDP, or UDP Multicast modes simultaneously without interfering with one another.

Multi-Master Concurrent Polling

Advanced RS485 bus arbitration. The integrated Modbus gateway queues and dispatches requests, allowing multiple SCADA hosts to poll the same serial devices simultaneously without causing data collisions.

Robust Serial Port Parameters

Ensures maximum compatibility with legacy PLCs and instruments. Supports a wide baud rate range from 300 to 921600 bps and highly configurable data frames.

MQTT Edge Computing & Modbus Integration

Accelerate your IoT deployment. Convert Modbus RTU telemetry into structured JSON payloads and push data directly to cloud brokers via MQTT or HTTP POST.

Hardware Interface & Physical Details

Product shooting interface and hardware details

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	8× Channels. Supports RS232 and RS485 combination freely. (Note: RS422 interface must be customized prior to order)
Power Input	DC 9~24V (Terminal Block or 5.5mm standard power socket)
Power Consumption	1W
Serial Specifications
Baud Rate	300 ~ 921600 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, 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 28.2cm × W 10.5cm × H 2.6cm

⚙️ Core Enterprise-Grade Capabilities

Dual-LAN Cascading: Dual 10/100M Ethernet ports with 2kV surge protection allow engineers to daisy-chain multiple 8-port servers together. This significantly reduces the wiring complexity and eliminates the need for additional industrial switches in the cabinet.
Advanced Modbus Gateway (Multi-Host): Embedded Protocol Converter Modbus RTU to Modbus TCP What’s unique is its capacity to support multi-host polling which enables multiple SCADA clients to read data from the serial bus at the same time without data collisions.
Flexible IP Routing: Build your network the way you want. Assign one unique IP address for all 8 serial ports (distinguished by TCP port numbers) or configure a unique independent IP address for each specific serial port for tight network segregation.
Legacy Protocol Compatibility: Supports baud rates up to 921.6 Kbps with highly configurable data frames (e.g. 7 data bits, 2 stop bits) for seamless integration with legacy, non-standard PLCs and instruments.

Documents

📄 Valtoris 8CH-RS232/485/422-ETH User Manual

Utilities

⚙️ Setup Software: VirCom 7.22

Technical FAQ & Troubleshooting

If multiple SCADA clients poll all 8 serial ports simultaneously, will the RS485 bus get congested and cause timeout errors?

No. The device features an advanced Storage-Type Modbus Gateway (Auto query storage type). It actively caches register data from the RTU slaves internally. When your SCADA issues a Modbus TCP request, the gateway replies directly from its high-speed cache within 3 milliseconds. This completely bypasses the slow RS485 baud rate limitations and prevents multi-host data collisions.

Do I need to allocate 8 separate IP addresses on my factory network for a single 8-port server?

It is entirely flexible. You can assign a single unified IP address for the entire device (routing traffic via 8 different TCP port numbers), or you can assign a unique, independent IP address to each of the 8 serial ports if your IT department requires strict subnet segregation for different machine zones.

How many servers can I daisy-chain using the Dual-LAN ports to save switch capacity?

You can cascade up to 8 levels of devices in a daisy-chain topology using standard Ethernet cables. This allows you to aggregate up to 64 serial ports (8 devices × 8 ports) back to your control room using only a single uplink switch port, drastically reducing cable clutter inside your distribution cabinet.

How can I verify that my RS485 instruments are transmitting data before integrating them with the SCADA system?

You can use our free utility, VirCom. It features a built-in “Data Monitor” that captures and displays the hexadecimal payloads flowing through the virtual COM ports in real-time. You can also look at the physical ACT LED on the device. A yellow-blue light physically confirms that the serial port is actively sending data to the Ethernet.

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