Módem de radio Ebyte SX1276 LoRa 868mhz rs485 de largo alcance
[Frecuencia]：862~893MHz
[Energía]：100mW
[Distancia]：3km
[Interfaz]：RS232/RS485
[Peso]：127±5g
[Introducción]：E32-DTU (868L20) es un transceptor de datos inalámbrico de 868M con conectores estándar RS232/RS485. Son semidúplex. Módems TX y RX con tecnología LoRa y modo de transmisión transparente. El suministro de voltaje varía de 8 V a 28 V, frecuencia de trabajo: 862 ~ 893 MHz (predeterminado: 868 MHz).
| Pin No. | Name | Function | Description |
|---|---|---|---|
| 1 | DB-9 female connector | RS-232 connector | Standard RS-232 connector |
| 2 | 3.81 wiring connector | RS-485, power connector | Standard RS-485 connector and line-pressing power source connector |
| 3 | PWR-LED | Power source indicator | Red, light on when power on |
| 4 | TXD-LED | TX indicator | Yellow, flicker when transmitting data |
| 5 | RXD-LED | RX indicator | Yellow, flicker when receiving data |
| 6 | DC power connector | Power source connector | Drop-in round hole, 5.5mm external diameter, 2.5mm internal diameter |
| 7 | Toggle switch | Toggle switch | Operation mode control |
| 8 | Antenna interface | SMA-K connector | External screw and inner hole, 10mm long, 50Ω characteristic impedance |