Operating Instructions

4 Technical description
Edition EN 2020/07 CARSHARING ZUSATZKARTENLESER Operating Instructions
10/22
4 Technical description
4.1 Overview
Function description
The ZKL will initiate the reading of the card identification (IDs) num-
bers, if the state of the card detections has changed. The state
changes, when a card is inserted or removed.
The ZKL is sending a BLE broadcast periodically to the vehicle. The
broadcast contains the manufacture specify data with the BLE MAC
address of the module, the battery state and the card IDs of the de-
tected cards.
There is only a unidirectional broadcast, not a bidirectional communi-
cation with the vehicle.