AVer SA series - Manual (Page 101)

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4.1.3.11 Locking System Operation
Using the lock button ( ) to lock the System Controller for preventing any unexpected situation happen
during the operator or administer is away from the System Controller.
We strong recommend that enable the password function to enhance the security (see also
Set a Password
for System Controller ).
1. Press
button. The LCD screen will display “System Controller Locked” message.
2. To un-lock, press again and using numeric key pad to enter the password. And then, press Enter
button to un-lock.