433MHz sx1278 5W RS232 RS485 LoRa Módem inalámbrico soluciones iot
[Frecuencia]：410~441MHz
[Energía]：37dBm
[Distancia]：20km
[Interfaz]：RS232/RS485
[Peso]：240±5g
[Introducción]：E90-DTU es un transceptor de datos inalámbrico con la función de procesamiento de datos digitales, modulación y demodulación digital, FEC, decisión suave equilibrada, etc. Proporciona una interfaz RS232/RS485 transparente, diferente con el transceptor FM analógico más el transceptor digital analógico MODEM.
| RF Parameter | Value | Remark |
|---|---|---|
| Working frequency | 410~441 MHz | Default: 433MHz |
| Transmitting power | 37 dBm | About 5W |
| Air data rate | 2.4k~19.2kbps | Default: 2.4kbps |
| Test distance | 20000 meters | In open and clear air, with maximum power, 5dBi antenna gain, height of 2m. |
| Hardware Parameter | Value | Remark |
|---|---|---|
| Size | 121 * 105 * 25 mm | Without interface |
| Antenna type | SMA-K | - |
| Communication interface | RS232 / RS485 | Standard DB9 Hole/3.81 connecting terminal |
| Baud rate | 9600 | Baud rate: 1200~115200 |
| Buffer | 512 bytes buffer | Automatically sub-packaging with 197 bytes per package |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
|---|---|---|---|---|---|
| Power supply | 10 | 12 | 28 | V | - |
| Transmitting current | 1024 | 1138 | 1252 | mA | 37dBm（5W） |
| Stand-by current | 45 | 50 | 55 | mA | - |
| Operating temperature | -40 | 20 | +85 | ℃ | - |
| Operating humidity | 10 | 60 | 90 | % | - |
| Storage temperature | -40 | 20 | +125 | ℃ | - |