Wurth Electronics' AMB3665-M Wireless USB adapter is based on the Wireless M-Bus radio standard providing a plug-and-play PC communications link via USB interface. The USB adapter operates in the 169 MHz frequency band.

The Wireless M-Bus standard (EN13757-4) specifies the communication between water, gas, heat, and electricity meters and concentrators. The standard comprises various operating modes to meet the requirements of one-way and two-way data communication in stationary and mobile systems. By using the USB adapter AMB3665-M, PCs or mobile terminals, such as service terminals, can now easily communicate with wireless M-Bus meters, data concentrators, and smart meter gateways.

The integrated microprocessor controls the entire data communication. Data packets are built and transmitted according to EN13757-4. AMB3665-M supports all operating modes according to the Wireless M-Bus specification. The quality of the radio link can be assessed by using the measured field strength or RSSI value. A graphical user interface (GUI) of the free windows application "AMBER-ACC" allows easy configuration of the operating parameters.

Interfaces

The device is connected either via a virtual COM port or directly via USB using the corresponding software API. The USB controller (FTDI FT232R) supports USB 2.0 (full speed).

Range of Application

The USB adapter is designed for automatic meter reading / smart meter reading applications enabling the easy integration of PCs, mobile terminals, and service terminals into a wireless M-Bus network.