Quad Serial Server (RS232/RS485 to Ethernet) Y204-R | Industrial-Grade | 4 Independent Ports | Modbus Gateway & IoT Ready
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Common Pain Points
Traditional serial-to-network solutions often suffer from limited RS232/RS485 range, weak anti-interference, communication conflicts with multiple devices, high cost and wiring complexity from multiple converters, difficulty integrating legacy protocols with cloud platforms, frequent failures in harsh industrial temperature/voltage conditions, complex configuration/maintenance, and poor scalability for large-scale IoT deployments.
Solution & Core Features
1.4 Independent Serial Ports — 4× RS232/RS485 ports operate concurrently without interference, supporting full-duplex multi-channel communication in one compact device.
2.Industrial Reliability — -40°C to +85°C wide temperature, 5-36V wide voltage input, IEC 61000 Level 3/4 surge/ESD/EFT protection, dual watchdog (hardware + software) for automatic anomaly recovery, metal enclosure with DIN rail mounting.
3.Modbus Gateway Bidirectional Conversion — Supports Modbus RTU ↔ TCP conversion, multi-master polling, slave data point configuration, and custom JSON edge reporting for seamless SCADA/cloud integration.
4.Multi-Protocol IoT Support — TCP Client/Server, UDP, HTTP Client (GET/POST), transparent transmission — easy device-to-cloud connectivity.
5.Smart Management — Built-in web interface for configuration/firmware upgrades, LAN discovery, AT commands, remote maintenance, and batch deployment support.
Technical Specifications
| Parameter | Details |
|---|---|
| Model | Y204-R |
| Serial Ports | 4 × RS232/RS485 (compatible) |
| Baud Rate | 600 ~ 460800 bps |
| Data Bits | 7, 8 |
| Parity | NONE / ODD / EVEN |
| Stop Bits | 1, 2 |
| Ethernet Port | 1 × RJ45 (10/100M auto-negotiation) |
| Power Supply | DC 5~36V (dual inputs: 5.5mm jack + terminal block) |
| Power Consumption | ~80mA @ 12V |
| CPU | ARM Cortex-M4, 240MHz |
| Operating Temperature | -40°C ~ +85°C |
| Dimensions | Approx. 150 × 79 × 23 mm |
| Protection | ESD Level 4, Surge Level 3, EFT Level 3, reverse polarity |
| Protocols | TCP/UDP/HTTP + Modbus RTU/TCP gateway + custom JSON reporting |
| Management | Built-in webpage, LAN search, AT commands |
| Mounting | DIN rail (metal enclosure) |
Application Scenarios
Widely deployed in industrial automation (multi-device monitoring & PLC networking), smart manufacturing (sensor/actuator aggregation), energy & power (remote metering & substation control), building security (access control & camera serial expansion), intelligent transportation (toll stations & parking systems), smart agriculture (environmental monitoring), smart fire protection & smart city projects, and any scenario requiring multiple legacy serial ports to be reliably, securely, and efficiently connected to Ethernet and cloud platforms.
