User's Manual

There are two security levels – 1:1 verification security level and 1:N
identification security level. The 1:1 verification security level is
between 1 and 9, and the default is 5. The 1:N identification security
level is between 5 and 9, and the default is 8. The higher security
level is, the higher FRR (False Reject Ratio) is. The lower security
level is, the higher FAR (False Accept Ratio) is. Therefore the default
level is recommended. This level is applied to all users except those
who choose user security level.
1:N identification timeout
When 1:N identification is used, terminal needs the time limit during
which template data is searched. This time can be from 3 to 9
seconds with default 3 seconds. If not find matching template,
“Identification timeout” error will occur.