4G Industrial Wireless Data Terminal DTU
Model：SIE2000D4B
- High-performance industrial 32-bit communication processor
- Low-power design with multi-level sleep/wake modes
- 4G high-speed connectivity with excellent cost-performance ratio
- WDT (Watchdog Timer) design ensures system stability
- Rich industrial interfaces supporting multiple protocols
- RS232/RS485 interfaces with built-in 15KV ESD protection
- Wide operating temperature range (-30°C to 70°C)
- 1×RS232, 1×RS485, 1×SIM slot
1. Product Overview
The SIE2000D4B DTU is an IoT wireless data terminal that utilizes public cellular networks to provide long-range wireless data transmission. Featuring an industrial-grade 32-bit communication processor and wireless module with embedded real-time OS, it offers RS232 and RS485 interfaces for direct connection to serial devices, enabling transparent data transmission. Its low-power design includes 3 I/O channels supporting digital I/O, pulse output, analog input, and pulse counting. Widely used in M2M applications across industries including smart grid, intelligent transportation, industrial automation, and more.
2. Key Features
1. Industrial-grade components
– 32-bit communication processor
– Multi-level sleep/wake modes for optimized power efficiency
– IP30-rated metal enclosure with system isolation for industrial environments
– Wide voltage input range (DC 5-36V)
– Watchdog circuit for system reliability
– 15KV ESD protection on RS232/RS485 interfaces
– 15KV ESD protection on SIM slot
– Reverse polarity and overvoltage protection on power input
– Optional lightning protection for antenna interface
2. Industrial terminal interfaces
– 1× standard RS232 and 1× standard RS485 interfaces
– Plug-and-play operation for immediate data transmission
– Flexible operation modes
– Convenient configuration and maintenance via serial port, supporting remote firmware upgrades
3. Advanced networking capabilities
– Supports TCP server functionality (4 concurrent connections)
– Dual-data-center backup and multi-center synchronization
– APN/VPDN support
– 3× I/O channels (digital I/O/pulse output/analog input/pulse counting)
– Multiple trigger modes (SMS/call ring/serial data)
– Domain name and IP address access with embedded TCP/IP stack
3. Application Scenarios
| Industry Sector | Specific Applications |
| Smart Energy | EV charging stations, smart metering, power distribution automation, oil/gas, solar/wind power |
| Smart Cities | Municipal utilities, public safety, traffic management, smart parking |
| Smart Manufacturing | Industrial robotics, production line automation, equipment monitoring |
| Smart Healthcare | Medical device connectivity |
4. Solution Architecture
The SIE2000D4B supports multiple industrial protocols, aggregating sensor data through various ports and transmitting via wireless networks to provide secure, stable, and cost-effective industrial data transmission.
| Parameter | Specification |
| Standards/Bands | Quad-band GSM (850/900/1800/1900MHz), GPRS Class 10/12 |
| Theoretical Bandwidth | 85.6Kbps |
| Transmit Power | GSM850/900: <33dBm GSM1800/1900: <30dBm |
| Receiver Sensitivity | <-108dBm |
| 4G Standards | LTE FDD/TDD, EVDO, WCDMA, TD-SCDMA, CDMA1X, GPRS/EDGE |
| 4G Bandwidth | LTE FDD: 150Mbps DL/50Mbps UL LTE TDD: 130Mbps DL/35Mbps UL |
| 3G Bandwidth | DC-HSPA+: 42Mbps DL/5.76Mbps UL TD-HSPA+: 4.2Mbps DL/2.2Mbps UL EVDO Rev.A: 3.1Mbps DL/1.8Mbps UL |
| Processor | Industrial 32-bit communication processor |
| Memory | 1MB Flash, 256KB SRAM |
| Serial Interfaces | 1× RS232 + 1× RS485 (15KV ESD protected) Data bits: 5/6/7/8 Stop bits: 1/1.5/2 Parity: None/Even/Odd/Space/Mark Baud rate: 1200-230400bps |
| Physical | 91×58×22mm (excluding antenna), 205g IP30 metal enclosure Operating temp: -35°C to +75°C Storage temp: -40°C to +85°C Humidity: 95% non-condensing |
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