TAG MIL-BOOK 10 - Manual (Page 73)

Sets the system password. A password is required for starting up the
system and running the SCU program. When setting password, make sure
that NumLock is off, then type the password in the entry field and press
Enter . Confirm your password by typing it again and pressing Enter . For
the password to take effect, enable the Enable Password item.
SCU Password
Sets the SETUP password. A password is required for running the SCU
program. When setting password, make sure that NumLock is off, then
type the password in the entry field and press
Enter . Confirm your
password by typing it again and pressing Enter . For the password to take
effect, enable the Enable Setup Password item.
5-16 Setup Configuration Utility (SCU)