E90-DTU(230N27) Ebyte free sample tcxo RS232/485 27dBm 230MHz narrow band transmission rf transceiver modem for IOT
[Frequency]：225~237.6MHz
[Power]：27dBm
[Distance]：5.0km
[Interface]：RS232/RS485
[Weight]：129±5g
[Introduction]：E90-DTU is a wireless data transceiver with the function of digital data processing,digital modulation and demodulation,FEC,balanced soft decision,etc.It provides transparent RS232/RS485 interface,different with the analog FM transceiver plus MODEM analog digital transceiver.
| RF Parameter | Value | Remark |
|---|---|---|
| Working frequency | 225~237.6 MHz | Default: 230MHz |
| Transmitting power | 27 dBm | About 500mW |
| Air data rate | 1.2k~70kbps | Default: 1.2kbps |
| Test distance | 5000 meter | In open and clear air, with maximum power, 5dBi antenna gain, height of 2m. |
| Hardware Parameter | Value | Remark |
|---|---|---|
| Size | 82 * 62 * 25 mm | Without SMA-K |
| Antenna type | SMA-K | |
| Communication interface | RS232 / RS485 | Standard DB9 Hole/3.81 connecting terminal |
| Baud rate | 9600 | Baud rate: 1200~115200 |
| Buffer | 512 bytes buffer | Automatically sub-packaging with 186 bytes per package |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
|---|---|---|---|---|---|
| Power supply | 10 | 12 | 28 | V | |
| Transmitting current | 147 | 163 | 179 | mA | 27dBm（500mW） |
| Stand-by current | 15 | 17 | 19 | mA | |
| Operating temperature | -40 | 20 | +85 | ℃ | |
| Operating humidity | 10 | 60 | 90 | % | |
| Storage temperature | -40 | 20 | +125 | ℃ | |