[Frecuencia]:225~237.6MHz
[Energía]:37dBm
[Distancia]:15km
[Interfaz]:RS232/RS485
[Peso]:238±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 | 225~237.6 MHz | Default: 230MHz |
Transmitting power | 37 dBm | About 5W |
Air data rate | 1.2k~70kbps | Default: 1.2kbps |
Test distance | 15000 meter | In open and clear air, with maximum power, 5dBi antenna gain, height of 2m. |
Hardware Parameter | Value | Remark |
---|---|---|
Size | 102 * 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 186 bytes per package |
Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
---|---|---|---|---|---|
Power supply | 10 | 12 | 28 | V | |
Transmitting current | 933 | 1037 | 1140 | mA | 37dBm(5W) |
Stand-by current | 37 | 41 | 45 | mA | |
Operating temperature | -40 | 20 | +85 | ℃ | |
Operating humidity | 10 | 60 | 90 | % | |
Storage temperature | -40 | 20 | +125 | ℃ | |