In the off-line mode terminals are initially configured by XAtlas and then the terminals work in a completely autonomous way identifying cardholders, granting or denying access based on the configuration tables received by XAtlas and storing the transactions in their memory. XAtlas collects the stored transactions for further analysis or for Time & Attendance purposes.

When the system is in on-line mode and a card is read, the terminal sends a request for authorization to XAtlas to perform ‘multi-terminal’ controls like global anti pass-back or zone counters. The configuration tables received from XAtlas are only used in this operating mode whenXAtlas is not accessible by the terminal due to LAN or server failures.

The Centralized version of XAtlas supports the following AXESS TMC famililies of terminals: Trax, SuperMax, Ultrax.