Pliant Crewcom CCU-22 Operating Manual page 73

4. Select Null All to start the Auto Null process for all 2-Wire ports of the selected device. Normal functions will
be interrupted for about 60 seconds during the Auto Null process (about 15 seconds per channel). An alert will
display, asking you to confirm that you want to proceed.
A. Auto Null with CrewCom will send a mic kill signal to connected AudioCom and RTS wired systems, but
not to Clear-Com wired systems. Auto Null operation will mute the audio from CrewCom Radio Packs
as it connects to connected wired systems; however, those wireless Radio Packs will still
communicate with one another while the null is in progress.
B. After you confirm to proceed, progress of the null process can be observed on the LCD Display. The
display will indicate "Auto Null Complete" once the Auto Null process is completed.
5. If nulling "by port," you will be prompted to select which ports after confirming your Null by Port selection.
6. Press the Home button to escape to the Home screen or press the Menu button to return to the previous
screen.
Auto Null from CrewWare
See the CrewWare Manual for more information about this process.
Figure 33 Auto Null in Process
Operation - 65