[Frequency]：2.4～2.48GHz
[Power]：12dBm
[Distance]：800m
[Size]：82*62*25mm
[Interface]：RS232/RS485
[Weight]：130±5g
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| Model | Freq. Hz | TX Power dbm | Test range m | Feature | Application feature | |
|---|---|---|---|---|---|---|
| E90-DTU(2G4HD12) | 2.4G | 12 | 800 | Point-to-point frequencyhopping, bidirectionalcontinuous transmission | Suitable for applicationswith long communicationdistance and radiointerference |
| No | Name | Value | Description |
|---|---|---|---|
| 1 | Product Size | 82*62*25 mm | See installation dimensions for details |
| 2 | product weight | 130g | Weight tolerance 4.5g |
| 3 | Operatingtemperature | -40℃～+85℃ | Meet the needs of industrial use |
| 4 | Antennaimpedance | 50Ω | Standard 50Ω characteristic impedance |
| 5 | voltage range | 8～28V DC | Recommend to use 12V or 24V |
| 6 | CommunicationInterface | RS232/RS485 | Standard DB9 hole/3.81 terminal block |
| 7 | Baud rate | Default 115200 | Baud rate range 1200～3M |
| Mode|Main Freq. Hz | Range Hz | Channel Width Hz | Channels | |
|---|---|---|---|---|
| E90-DTU(2G4HD12) | 2.4G | 2.4～2.48G | 1M | 80(full duplex) |
| Mode | Ave. Tx Current mA 12V|24V |
Ave. Standby Current mA |12V|24V |
||
|---|---|---|---|---|
| E90-DTU(2G4HD12) | 35 | 18 | 35 | 18 |
Practical Application Scenarios
1. Automated Factory PLC Networking
This DTU is widely deployed to bridge serial communications between remote PLCs across a factory floor. Its full-duplex operation allows for simultaneous data transmission and reception, ensuring real-time status reporting for production lines without the complexity of hard-wired cabling in environments with high motor-driven electrical noise.
2. Large-Scale Warehouse AGV Management
In automated logistics, this modem enables reliable command execution for Automated Guided Vehicles (AGVs). The 2.4GHz stability ensures that navigation and control data packets are processed with high speed, maintaining constant communication links even as AGVs move through aisles cluttered with metallic racking systems.
3. Industrial Data Acquisition (SCADA)
Engineers utilize these stations to aggregate data from distributed sensors into central SCADA systems. By leveraging the high-level port protection, this unit remains operational in high-EMI environments, preventing data loss or communication timeouts that often plague standard consumer-grade wireless modems.
FAQ Section
1. Why is full-duplex communication critical for my industrial system?
Full-duplex enables data to be sent and received simultaneously without waiting for a turn in the communication cycle. This significantly reduces latency and prevents packet collisions in high-speed data control applications where response time is a safety-critical parameter.
2. Does this device require external antennas for the stated 800m range?
Yes, the 800-meter range is achieved under optimal line-of-sight conditions with the use of a suitable high-gain antenna. In indoor or industrial environments with physical obstructions, signal attenuation will occur, and site surveys are recommended to determine the effective range for your specific facility layout.
3. How does the port protection feature benefit deployment?
Industrial environments are often subject to voltage spikes and electromagnetic interference. Our specialized port protection circuitry prevents transient high voltages from damaging the RS232/RS485 transceiver chips, ensuring higher uptime and reduced maintenance costs compared to non-protected serial modems.
