[Frecuencia]：425~450.5MHz
[Energía]：17dBm
[Distancia]：1.0km
[Tamaño]： 66*66*21mm
[Interfaz]： RS232
[Rasgo]：transmisión continua
[Introducción]：E800-DTU(433L20-232) es un transceptor de datos inalámbrico con la función de procesamiento de datos digitales, modulación y demodulación digital, FEC, decisión suave equilibrada, etc. El transceptor de datos inalámbrico proporciona una interfaz RS232 / RS485 transparente, diferente a la FM analógica transceptor más MODEM transceptor digital analógico.
| Pin No. | Name | Function | Description |
|---|---|---|---|
| 1 | 3.81mm terminal block | UART interface/Power supply interface | Standard RS-232&485 interface/screwing power supply interface |
| 2 | PWR-LED | Power LED | Red, lit when the power is on |
| 3 | TXD-LED | Transmit LED | Yellow, blinks when transmitting data |
| 4 | RXD-LED | Receive LED | Yellow, blinks when receiving data |
| 5 | M0-LED | Mode LED | Red,M0 M1 indicate the operating mode together |
| 6 | M1-LED | Mode LED | Red,M0 M1 indicate the operating mode together |
| 7 | Mode switch | Tact switch | Control the operating mode |
| 8 | Antenna interface | SMA-K interface | External thread, 10mm, 50Ω characteristic impedance |