AMB8425-M AMBER WIRELESS, AMB8425-M Datasheet
AMB8425-M
Manufacturer Part Number
AMB8425-M
Description
MODULE, RADIO, 868MHZ
Manufacturer
AMBER WIRELESS
Type
Wireless USB Adapterr
Datasheet
1.AMB8425-M.pdf
(2 pages)
Specifications of AMB8425-M
Data Rate Max
115.2Kbps
Sensitivity
-107dBm
Supply Voltage Range
2.7V To 3.6V
Module Interface
UART
Supply Current
36mA
Rohs Compliant
Yes
AMB8425-M
Compact Wireless M-Bus Radio Module
868 MHz SRD Band
Key Features
Description
The Wireless M-Bus standard (EN13757-4:2005) specifies the communication between water, gas, heat and electricity
meters and concentrators. The standard comprises various operating modes (S, T and R) to meet the requirements of
one-way and two-way data communication in stationary and mobile systems.
The AMB8425-M is an all embedded low-cost wireless M-Bus radio module, which operates in 12 channels in the
868 MHz frequency band. The integrated protocol controls the entire data communication. Data packets are built and
transmitted according to EN13757-4:2005 specification. Configuration of parameters is handled via the UART
interface. The module automatically adds the Manufacturer ID and the Address based on parameters configured in the
radio module. Measured field strength (RSSI value) offers the option of enhancing quality of the radio link.
The customised application layer can be fully integrated in the radio module, thus eliminating the need for an external
host microcontroller. The radio module supports the AES-128 encryption standard. A very low-power mode ensures
long battery lifetime.
The module is pre-certified for operation under the European radio regulations for license-free use. Due to its
outstanding RF characteristics the module achieves a range* of up to 700 metres line of sight.
The AMB8425-M is a surface-mounted module and is available on Tape &Reel for volume production.
Interfaces
The AMB8425-M is connected to a host system via an UART interface with data rates of up to 115.2 kbps.
Alternatively, a SPI interface is offered (in preparation).
When using appropriate firmware, the module is also suitable for autonomously recording digital or analogue signals.
Other pins can be used for data flow control and to switch between operating modes.
Range of Applications
The radio module is designed for automatic meter reading applications for wireless data transmission according to the
Wireless M-Bus specification (EN13757-4:2005). The radio module is designed to be integrated in meters,
concentrators and mobile metering devices. Other applications are conceivable. Its compact dimensions and low-
power consumption make the radio module ideal for battery-powered devices.
Low-cost Wireless M-Bus radio module (868 MHz SRD Band)
Embedded Wireless M-Bus according to EN13757-4:2005 standard
Range* up to 700 m (line of sight)
Small form factor: 16 x 27 x 3.5 mm
Optimized for battery use
Easy switching between operating modes S1, S1m, S2, T1, T2, R2
Communication and configuration via UART/SPI Interface
Supports AES128 data encryption
Conforms with EU R&TTE 1999/5/EC directive
Available on Tape & Reel for SMD mounting
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AMB8425-M Summary of contents
Page 1
... The AMB8425 surface-mounted module and is available on Tape &Reel for volume production. Interfaces The AMB8425-M is connected to a host system via an UART interface with data rates 115.2 kbps. Alternatively, a SPI interface is offered (in preparation). When using appropriate firmware, the module is also suitable for autonomously recording digital or analogue signals. ...
Page 2
... Ordering information Part No. Description AMB8425-M Wireless M-Bus Radio Module AMBER wireless GmbH assumes that the statements made in this data sheet are correct at the time of issue. AMBER wireless GmbH reserves the right to make changes to technical specifications or product functions without prior notice. AMBER wireless GmbH does not assume any responsibility for the use of the described products, neither does it convey any license under its patent rights ...