[Frequency] : 425~450.5MHz
[Power] : 17dBm
[Distance] : 2.0km
[Interface] : RS232
[Introduction] : E800-DTU is a wireless data transceiver with the function of digital data processing, digital modulation and demodulation, FEC, balanced soft decision, etc.. Wireless data transceiver provides transparent RS232 / RS485 interface, different with the analog FM transceiver plus MODEM analog digital transceiver.
RF Parameter | Value | Remark |
Working frequency | 425 ~ 450.5 MHz | Default: 433MHz |
Transmitting power | 7 ~ 17 dBm | Default: 17dBm(About 50mW) |
Air data rate | 1.2kbps ~ 70kbps | Default: 1.2kbps |
Test distance | 2000 meter |
Hardware Parameter | Value | Remark |
Size | 66 * 66 * 21 mm | |
Antenna type | SMA-K | |
Communication interface | RS232 | 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 | 8 | 12 | 28 | V | |
Transmitting current | 45 | 50 | 55 | mA | 17dBm(50mW) |
Stand-by current | 18 | 20 | 22 | mA | |
Operating temperature | -40 | 20 | +85 | ℃ | |
Operating humidity | 10 | 60 | 90 | % | |
Storage temperature | -40 | 20 | +125 | ℃ |
Pin No. | Name | Function | Description |
1 | 3.81mm terminal block | UART interface/ Power supply interface | Standard RS-232&485 interface/screwing power supply interface |
2 | PWR-LED | Power LED | Red, lit when the power is on |
3 | TXD-LED | Transmit LED | Yellow, blinks when transmitting data |
4 | RXD-LED | Receive LED | Yellow, blinks when receiving data |
5 | M0-LED | Mode LED | Red,M0 M1 indicate the operating mode together |
6 | M1-LED | Mode LED | Red,M0 M1 indicate the operating mode together |
7 | Mode switch | Tact switch | Control the operating mode |
8 | Antenna interface | SMA-K interface | External thread, 10mm, 50Ω characteristic impedance |