4
General description
1. General description
1.1 Basic functionality
03925 enables the realization of energy harvesting wireless switches for building or industrial automation systems communicating based on
Bluetooth technology
low
energy technology.
03925 pushbutton transmitters are self-powered (no batteries) and fully maintenancefree. They can therefore be used in all environments including locations that are
difficult to reach or within hermetically sealed housings. The required energy is generated by an electro-dynamic energy transducer actuated by an energy bow located
on the left and right of the module. This energy bow which can be pushed from outside the module by an appropriate pushbutton or switch rocker.
When the energy bow is pushed down or released, electrical energy is created and a radio telegram according to the
Bluetooth technology
low energy standard is
transmitted. This radio telegram transmits the status of all four contact nipples at the moment when the energy bow was pushed down or released.
03925 radio telegrams are protected with AES-128 security based on a device-unique private key.
Fig. 1: 03925
1.2 Technical data
Antenna
Integrated PCB antenna
Max. transmit power measured
0.4dBm / 1.1mW
Communication Range (Guidance Only)
75 m ideal line of sight / 10 m indoor environment
Communication Standard
Bluetooth technology
Low Energy (BLE)
Radio Frequency (min / max)
2402 MHz / 2480 MHz
Default Radio Channels
CH 37 / 38 / 39 (2402 MHz / 2426 MHz / 2480 MHz
)
Advertising Events per press or release (min / max)
2 / 3
Data Rate and Modulation
1 Mbit/s GFSK
Configuration Interface
NFC Forum Type 2 Tag (ISO/IEC 14443 Part 2 and 3)
Device Identification
Unique 48 Bit Device ID (factory programmed)
Security
AES128 (CBC Mode) with Sequence Code
Power Supply
Integrated Kinetic Energy Harvester
Button Inputs
Up to four buttons or two rockers
1.3 Environmental conditions
Operating Temperature
-25°C ... 65°C
Storage Temperature
-25°C ... 65°C
Humidity
0% to 95% r.h. (non-condensing)
Summary of Contents for 03925
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