Nitgen NAC-3000 - Page 26

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n Security Level
Specify security level if you use fingerprint authentication. You can
choose a level between 1 and 9. The greater the number is, the
higher the security level is. You can specify security levels for 1:1
mode and 1:N mode separately to use the system more efficiently.
In general, set the 1:N mode security level higher than the 1:1
mode one.
• 1:1 mode
In this mode, you should input ID first and then your fingerprint.
The enrolled fingerprint corresponding to the ID will be compared
to the entered fingerprint on a 1:1 basis. So you can set lower
security level in this mode than in 1:N mode without degrading
security.
Ｓｅｃｕ． Ｌｅｖｅｌ
１．１：１ Ｍｏｄｅ
（１ － ９）: ５
• 1:N mode
In this mode, you need to input fingerprint only without ID. It is
recommended to set a higher security level in this mode than in
1:1 mode. The default is 8.
If a high level of security is required, you will need to specify
a high security level. But a high security level can increase
the fals
e rejection rate (fail to authenticate the right person)
depending on the status of the fingerprint. In contrast, a low
security level may increase the false acceptance rate (allow
authentication for the wrong person).