Signal LevelAttenuation Characterization (SLAC) is a mechanism by which electric vehicles and charging stationsconnect
to each other. SLAC is specially designed for charging processes in which several electric vehicles and charging stations are in a network. To determine which charging station the electric vehicle is connected to, the electric vehicle sends a broadcast that can be received by all charging stations, which respond
with a confirmation message. Theunique identification of
the charging station to which the vehicle is connected is done by the SLAC mechanism. SLAC is based on a request-response procedure where the request is made from the electric vehicle. The electric vehicle can use the signal level to filter out the one it is connected to from the various responses from the different charging stations.