[Frequency]:900~931MHz
[Power]:1W
[Distance]:8km
[Interface]:RS232/RS485
[Weight]:128±5g
[Introduction]:Based on SX1276 chip from SEMTECH, E44-DTU-1W with RS232/RS485 interface, 8V~28V, operating at 900~931MHz features LoRa spread spectrum. It features LoRa long range transmission and effective FEC. 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 connecto | 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 |

[Frequency]:160~173.5MHz
[Power]:30dBm
[Distance]:8.0km
[Interface]:RS232/RS485
[Weight]:128±5g

[Frequency]:862~893MHz
[Power]:30dBm
[Distance]:8.0km
[Interface]:RS232/RS485
[Weight]:128±5g

[Frequency]:410~441MHz
[Power]:37dBm
[Distance]:20km
[Interface]:RS232/RS485
[Weight]:259±5g

[Frequency]:410~441MHz
[Power]:30dBm
[Distance]:8.0km
[Interface]:RS232/RS485
[Weight]:128±5g