Unlimited number of fingerprints can be stored in Finger Authentication server (FAS) * Fingerprint recognition is done on FAS (input finger is matched to database stored in FAS) * Access log is stored in FAS which can store unlimited number of access log records. * A maximum of 99 Fin"locks can be connected to FAS to form a cluster for large-scale access control application * Access log is stored locally. Each FS21M can store up to 1 million access log records