Lantech LGS-2624C User manual - page 23
Privilege Level
The privilege level of the user. The allowed range is 1 to 15. If the privilege
level value is 15, it can access all groups, i.e. that is granted the fully control
of the device. But others value need to refer to each group privilege level.
User's privilege should be same or greater than the group privilege level to
have the access of that group. By default setting, most groups privilege
level 5 has the read-only access and privilege level 10 has the read-write
access. And the system maintenance (software upload, factory defaults and
etc.) need user privilege level 15. Generally, the privilege level 15 can be
used for an administrator account, privilege level 10 for a standard user
account and privilege level 5 for a guest account.