10
3)
Collective broadcast operation: Press the "BROADCAST ON" key, all registered partitions that
are not started will be in the "Start-up waiting state" and after the external control panel returns the
startup completion instruction, all waiting partitions will be in the "Start-up state".
4)
On-off operation: Press the "BROADCAST OFF" key, all registered partitions that have been
started will exit to the "Registration state".
3.10 Lock key function
Lock key function is used to enable and disable the function of keyboard keys. In the state of the
lock key (
by default, the power-on reset is to lock the keyboard
), the "Keyboard" indicator is
normally off and
except for the "MUTE" key
, all the keys fail; when the "Lock key" button is
pressed, the "Keyboard" indicator is normally on, the product will exit the lock key state, and all
keys related operations can be performed.
If there is no operation in five minutes, the product
will automatically re-enter the lock state.