E34-DTU(2G4H20) nRF24L01P high speed wireless transmitter receiver module iot wireless networking equipment 2.4ghz industrial dtu RS485 RS232
[Frequency]：2.4~2.518GHz
[Power]：20dBm
[Distance]：2.5km
[Interface]：RS232/RS485
[Weight]：127±5g
[Introduction]：E34-DTU-2G4H20 with RS232/RS485 interface, 8V~28V, operating at 2.4~2.518GHz features automatic frequency hopping, strong anti-interference ability, high speed and short delay. Transparent transmission is available. It supports data encryption & compression.
| 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 |