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Vision Series Installation and Operating Handbook
A user-settable timeout controls for how long the admin user is logged in w ithout any user
entry activity – when user entry is detected then the user session is extended by the
length of the timeout period. An admin user can also choose to log out of the modem,
which has the effect of closing the brow ser session and allow ing another user to control
the modem.
View -only user login sessions do not use any timeout and are maintained until the
browser session is closed. They are also unaffected by whether the modem is under local
or remote control.
In Giveaw ay mode, control is passed to the first admin user that logs in. If an attempt is
made to log in as admin w hen there is already an admin user logged in, then the login w ill
succeed but the user will have view -only permissions, thereby ensuring there can never
be tw o users in control of the modem at the same time.
In order to allow a sw itch back to local control from Giveaw ay mode, when there is no
remote admin user logged in, the local front panel interface can gain control at any time
simply by issuing a command from the front panel user interface. While a remote admin
user is logged in then the local front panel interface is restricted to view ing modem
settings only.
Once a local user has gained control in Giveaw ay mode, they can then change the
modem back to local control, thereby locking out remote admin users. Note that unless
the sw itch back is done, local front panel interface control w ill time out in a similar w ay to
remote admin users and thereby control may be taken aw ay again by a remote admin
user.
During the period betw een an admin user logging out and either another admin login or a
command being issued via the local front panel interface to gain control, no user is in
control of the modem.
Although there is no explicit login associated w ith the local front panel interface, there is
an implicit login w hen a key is first pressed. Conceptually, a user at the local front panel
interface is logged in as admin w hen in Giveaw ay mode and there is no remote admin
user currently logged in, otherw i s e the local front panel interface is logged in as a view -
only user. In Giveaw ay mode, the user at the local front panel interface can explicitly log
out by pressing the Main key.
7.1.3
Takeaw ay Mode
In Takeaw ay mode, either the user at the local front panel interface or a remote admin
user can control the modem at any time. In this mode there is no restriction on the
number of admin users that can be logged in at one time. When the modem is sw itched
out of Takeaw ay mode to Local mode then all remote admin users w ill be automatically
logged out. When it is sw itched from Takeaw ay to Giveaw ay, then all but one instance of
admin users will be automatically logged out. Although technically only one user is in
control at any time, control is relinquished as soon as a command is sent and therefore
different control requests from different users are simply interleaved w ith each other.
Because of this, Takeaw ay mode is best used in circumstances where there are clear
operational procedures in place to avoid conflicts arising in relation to modem control.
7-2
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