Samsung MR-DH00 Technical Data Book page 70

Control Systems
Centralized control systems
II II
4. Touch centralized controller
MCM-A300N
6) Main function
L ock function
You can lock the functions of Touch centralized controller.
(1) Screen lock
You can lock the screen.
(2) Operating panel lock
You can set the access lock of each item of operating panel.
The locked item will be deactivated.
(3) Menu lock
You can set the access lock of each menu.
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