E90-DTU(400SL33) es un transceptor de datos con tecnología de modulación LoRa de grado militar. Con múltiples modos de transmisión, funciona en la banda de frecuencia (410.125~493.125MHz) (433.125MHz predeterminado).El transceptor proporciona una interfaz RS232/RS485 transparente y Admite entrada de voltaje de 8 ~ 28 V.
[Frecuencia]：: 410,125 ~ 493,125 MHz
[Potencia]：: 33dBm
[Distancia]：: 16 km
[Tamaño]：: 82*62*25mm
[Interfaz]：:RS232/RS485
[Peso]：: 130 ± 4,5 g
Tienda oficial
| No. | Name | Function | Note |
|---|---|---|---|
| 1 | DB-9 female socket | RS232 innterface | Standard RS232 interface |
| 2 | 3.81 terminal block | RS485,power interface | Standard RS485 interface and pressure line power innterface |
| 3 | PWR-LED | Power LED | Red,lit when the power is on |
| 4 | TXD-LED | Transmit LED | Yellow,blinks when sending data |
| 5 | RXD-LED | Receive LED | Yellow,blinks when receiving data |
| 6 | DC power interface | Power interface | In-line round hole,outer diameter 5.5mm,diameter 2.5mm |
| 7 | DIP switch | DIP switch | Controlled by working mode |
| 8 | Antenna interface | SMA-K innterface | external thread,10mm,50Ω characteristic impedance |