5.10 User Access and Management
5.10.1 Purpose
OnAir 2500 consoles are used in different studios with different working
practice and different personnel structures. A large part of users in broadcast
studios is not technically oriented. They request from a mixing console that
it is simple to use, reliable, and free of “unnecessary” controls and displays.
Setting of a wider range of console parameters, saving of console settings
(snapshots) and modifications of the console configuration have to be left
for technically more competent users (e.g. studio technicians, chief engineer,
etc.). It may also be necessary to protect parts of system data, and to give the
permission to change them only to a restricted number of users. In order to
satisfy these needs, the OnAir 2500 console supports individual user acces
rights. By assigning appropriate acces rights to each user it is possible to
individually adapt the OnAir 2500 console to very different environments.
The access rights for a specific user are defined on two different levels;
“privileges” are defined for access to GUI pages and to groups of console
parameters. Individual access to single console parameters will be available
in a later software version.
A set of privileges forms a “policy”. One or more policies can be assigned to
every user, which means that the access rights for a certain user are the result
of a logical OR combination of all policies assigned to him. If no policy is
assigned to a particular user, he has no access to any of the console settings.
5.10.2 General
Once a user is logged in via the user GUI, his login information is saved in
the user GUI memory (“container”). The container saves the access rights for
the user currently logged in. After start-up of the console, the default user is
logged in per default.
5.10.3 Users
The default number of users is 20. This number is defined in the user.xml
file and may be up to 64; it cannot be changed during runtime. If more than
64 users are required, the system must be setup in such a way that the user
management is running on a separate computer (see chapter 5.10.9). The
maximum number of users is 4096.
The first user is the system administrator (Admin), the second user is the
default user (Default), all following users are “ordinary” users (User3...).
The system administrator has a special, unrestricted “Admin” policy that can-
not be modified. The default user also has his special “Default” policy that
may, however, be modified. For reasons of simplicity and reliability, both the
admin and default users have one single, fixed policy only.
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