E32-DTU(915L20) Free sample sx1276 lora gateway iot device 915mhz lora radio module rs232 rs485 wireless transceiver
[Frequency]：900~931MHz
[Power]：20dBm
[Distance]：3.0km
[Interface]：RS232/RS485
[Weight]：127±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.
Official Store| RF Parameter | Value | Remark |
|---|---|---|
| Working frequency | 900~931 MHz | Default: 915MHz |
| Transmitting power | 20 dBm | About 100mW |
| Receiving sensitivity | -138 dBm | Air data rate: 2.4kbps |
| Air data rate | 0.3k~9.6kbps | Default: 2.4kbps |
| Test distance | 3000 meter | In open and clear air, with maximum power, 5dBi antenna gain, height of 2m,air data rate: 2.4kbps |
| Hardware Parameter | Value | Remark |
|---|---|---|
| Size | 82 * 62 * 25 mm | |
| Antenna type | SMA-K | |
| Communication interface | RS232 / RS485 | Baud rate: 1200~115200, default: 9600 |
| Package | DB-9 / Screwing | Standard DB9 Hole/3.81 connecting terminal |
| Buffer | 512 bytes buffer | Automatically sub-packaging with 58 bytes per package |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
|---|---|---|---|---|---|
| Power supply | 10 | 12 | 28 | V | |
| Transmitting current | 120 | 134 | 147 | mA | 20dBm（100mW） |
| stand-by current | 25 | 28 | 31 | mA | |
| Operating temperature | -40 | 20 | +85 | ℃ | |
| Operating humidity | 10 | 60 | 90 | % | |
| Storage temperature | -40 | 20 | +125 | ℃ | |