SIEMENS AT BE AS T12 Operating Manual/Functional Description for SIEMENS: VENUS Radio Frequency System Chip Card 315 MHz
SIEMENS AT BE AS T12 Functional Description VENUS Radio Frequency System The VENUS radio frequency systemics an optional unit which enables convenient vehicle operation. All the driver needs to do in order to use the vehicle is simply to carry a chip card along with him. The vehicle activates the chip card by induction. The card can be excited by pressing a button, or by inductive activation to emit a code to the vehicle. If this code is assessed as "valid", the vehicle is locked or unlocked.
SIEMENS AT BE AS T12 Description of the test setup for the VENUS radio frequency system The test setup comprises the following parts: Card in normal mode Chip card in test mode Continuous transmission” Start-up When operating the chip card in normal mode, the chip card activates the two status LED (green) on actuation of the button, and emits a radio frequency telegram first. Then the LED on the chip card goes on briefly.