E32-DTU(433L37) 433MHz SX1278 LoRa Long Range 5W RS232 RS485 Radio Frequency RTU Module
[Frequency]：410~441MHz
[Power]：37dBm
[Distance]：20km
[Interface]：RS232/RS485
[Weight]：259±5g
[Introduction]：E32-DTU (433L37) is wireless data transceiver of 433M with standard RS232/RS485 connectors. They are half-duplex. TX & RX modems with LoRa technology and transparent transmission mode. Voltage supply ranges from 8V to 28V, Working frequency
| RF Parameter | Value | Remark |
|---|---|---|
| Working frequency | 410~441 MHz | Default: 433MHz |
| Transmitting power | 37 dBm | About 5W |
| Receiving sensitivity | -130 dBm | Air data rate: 2.4kbps |
| Air data rate | 0.3k~9.6kbps | Default: 2.4kbps |
| Test distance | 20000 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 | 124 * 105 * 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 | 8 | 12 | 28 | V | - |
| Transmitting current | 945 | 1050 | 1155 | mA | 37dBm（5W） |
| Stand-by current | 40 | 44 | 49 | mA | - |
| Operating temperature | -40 | 20 | +85 | ℃ | - |
| Operating humidity | 10 | 60 | 90 | % | - |
| Storage temperature | -40 | 20 | +125 | ℃ | - |