Control Panel Operation CP 3830
6−92 CM 4000 Installation and Operating Manual
LOCKING OR UNLOCKING AN OUTPUT
Locking an output prevents that output from being switched by any panel in the system, including the initiating panel. In a
single destination panel, it essentially locks the panel from further operator action until unlocked.
Note: The CP 3830P Preset (preview) output cannot be locked or protected.
To lock an output:
1. Press the LOCK button.
This has the effect of locking only those levels this control panel can control (as defined on the CP Level set assigned
to the panel). The button will illuminate in “high” red, indicating the output has been locked by this panel.
If another CP 3830 panel selects this output for control, that panel’s LOCK button will blink red. If the other panel at-
tempts to switch this output, a “LOCKED” message will appear, along with the name of the locking panel.
If a CP 3808 panel selects this output for control, that panel’s TAKE button will blink red (the CP 3808 has no LOCK
button).
To unlock the output:
1. Press the LOCK button again.
The LOCK button lamp will switch to “low” green. If the output has been locked by another panel, the button will show
lock status by blinking red.
An output may be forced unlocked, no matter which panel locked it, if the password level of the unlocking panel is level 90
or greater. The password level is defined in the MPK Devices table entry (page 5−107). This operation is useful for a master
panel capable of switching any source to any destination. The operator would be required to force unlock the output prior
to changing its source selection.
For additional protect/lock information − see page 6−12.
PROTECTING OR UNPROTECTING AN OUTPUT
Protecting an output prevents that output from being switched by other panels in the system. The protecting panel may still
change the outputs.
To protect an output:
1. Press the PROT button.
This has the effect of protecting only those levels this control panel can control (as defined on the CP Level set assigned
to the panel). The button will blink “high” green, indicating the output has been protected by this panel.