European 868MHZ Wireless M-bus Module FC-704 USB dongle with USB interface
1. Brief Description
FC-704 transceiver module conforms to Wireless M-Bus protocol. It has a USB interface for serial communication and configuration. And accords with wireless communication hard test standard of Europe, which can work in S, T and R2 mode. It works in sleeping mode with super-low consumption power and can be wakened up via serial port.European 868MHZ Wireless M-bus Module FC-704 USB dongle with USB interface is a good chice for meter reading application.
2. Key Performance indicators
1) Power voltage:+4.5V +5.5V, the normal: +5.0V;
2) Sleeping current: ≤2.8uA;
3) RX current:≤45mA;
4) TX current:≤65mA;
5) Working temperature:-40~+70
6) Channel spacing: 50KHZ/60KHZ
7) Modulation mode: FSK
8) TX power: 10dBm
9) Frequency error:±5KHZ;
10) Spurious emission:≤-36dBm;
11) Receiving sensitivity:≤-102dBm
12) Total 12 channels
Channel n 868.03 + n x 0.06 MHz
13) TX power(five levels):
1: -5 dBm
2: -2 dBm
3: 0 dBm
4: 7 dBm
5: 10 dBm
3.Technical Specification:
| Parameter | Min | Typ. | Max | Unit |
| Frequency bands | 868 | 870 | MHz | |
| Number of channels | 13 | |||
| Input/output impedance | 50 | Ohm | ||
| 4.8 32.768 100 | kchip/s | ||
Transmit power |
10 |
dBm | ||
| Sensitivity, 32.768K | -102 | dBm | ||
Spurious emission, TX |
-36 -30 | dBm | ||
| Sensitivity(32.768K) | -102 | dBm | ||
Blocking 1 MHz | –52 –56 –63 | dBm | ||
| Image Rejection | –30 | dBm | ||
| Spurious Emissions | -54 | dBm | ||
| Harmonics | –42 | dBm | ||
| Current consumption, SLEEP | 2.8 | uA | ||
| Current consumption, RX/IDLE | 45 | mA | ||
Current consumption, | 65 | mA | ||
| Minimum RST Low Time to Generate a System Reset | |
μs |
