
Y201-G Serial to 4G Converter | Industrial-Grade 4G DTU | RS232/RS485/TTL to LTE | Modbus Gateway Support
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Common Pain Points
Traditional serial communication devices often suffer from wired limitations requiring costly cabling in remote/harsh environments, unstable connectivity due to interference or distance, narrow voltage/temperature ranges causing failures in extreme conditions, complex setup/programming for IoT integration, frequent downtime without auto-recovery, and poor adaptability for legacy PLC/equipment upgrades, severely hindering reliable remote monitoring, data transmission, and cost-effective IoT deployment in industrial automation, smart grid, cold chain, and agriculture.
Solution & Core Features
1.Ultra-Compact & Industrial-Grade Design — Tiny form factor with rugged metal housing (IP30), supports DIN rail or hook mounting for easy installation in space-limited cabinets or panels.
2.Reliable LTE Cat.1 Connectivity — Utilizes global LTE-FDD/TDD bands (B1/B3/B5/B8/B34/B38/B39/B40/B41), up to 10 Mbps downlink / 5 Mbps uplink, 99.9% uptime with stable data transfer even in remote areas.
3.Multi-Interface & Wide Compatibility — RS232, RS485, or TTL interfaces; supports bidirectional transparent data passthrough, MQTT, HTTP, TCP/UDP protocols; Modbus TCP ↔ RTU gateway conversion for seamless PLC/SCADA integration.
4.Low Power & Extreme Durability — 9-36V DC wide voltage input (reverse protection), low power consumption for extended battery life, -40°C ~ +75°C (or up to +85°C in some refs) full industrial temperature range, hardware watchdog + auto-recovery for non-stop operation.
5.Plug-and-Play & Easy Setup — Pre-installed AT commands, 5-minute configuration via USB/web, no programming needed; supports DNS, PING, heartbeat for robust remote management.
6.Additional Protections — ESD/surge protection, anti-interference design, SIM card slot, external antenna for enhanced signal in weak coverage areas.
Technical Specifications
| Category | Parameter | Details |
|---|---|---|
| Basic | Dimensions | Ultra-compact (approx. 100-110mm height, slim profile) |
| Operating Temperature | -40°C ~ +75°C (industrial grade) | |
| Power Supply | 9 ~ 36V DC (wide voltage, reverse protection) | |
| Power Consumption | Low power, ~100mA @ 12VDC typical | |
| Wireless | Module | LTE Cat.1 (FDD/TDD) |
| Frequency Bands | LTE-FDD: B1/B3/B5/B8; LTE-TDD: B34/B38/B39/B40/B41 | |
| Transmit Power | Class 3 (23 dBm ±2 dB / +1/-3 dB) | |
| Data Rate | Up to 10 Mbps DL / 5 Mbps UL | |
| Serial | Interfaces | RS232 / RS485 / TTL (selectable) |
| Baud Rate | 1200 ~ 115200 bps (up to 160800 in some) | |
| Data Bits / Parity / Stop Bits | 8 bits, NONE/ODD/EVEN, 1/2 stop bits | |
| Software | Protocols | Transparent TCP/UDP Client, HTTP, MQTT, Modbus TCP/RTU Gateway |
| Network | DNS/TCP/UDP/PING, heartbeat, auto-reconnect | |
| Other | Hardware watchdog, AT commands, USB config | |
| Mounting & Build | Mounting | DIN rail / hook / wall-mount |
| Protection | IP30 metal shell, ESD/surge, anti-interference |
Application Scenarios
Widely deployed in industrial automation (PLC remote monitoring/control, factory retrofit), smart grid (interference-resistant metering/data collection), cold chain logistics (temperature tracking in -40°C environments), agriculture (remote sensor/irrigation systems), environmental monitoring, water conservancy, mining/farms (global 4G coverage in remote sites), and all scenarios requiring reliable wireless upgrade of legacy serial devices to cloud/IoT platforms with minimal cost and downtime.