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With the use of global antipassback it is possible to suppress passback, using
duplicate card for infiltration (sudden appearance inside), transferring the ID to
another person, etc (See Figure 7).
Fig. 7.
Tracking the violations
In case of lost communication with the access control panels, forced entry, free
pass, etc. U-Prox IC A merges access areas together , considering that the
personnel may be both there and there.
After restoring the normal state of access point or communication with the control
panels, areas will be unmerged (See Figure 8).
Fig. 8.
Merging access zones