Grass Valley ADX-1901 - Manual (Page 31)

GUIDE TO INSTALLATION AND OPERATION
ADX-1901 | 27
displayed by the status LED on the card edge when an Overload alarm is set. Choices are:
• Green, Yellow, Red, Flashing Red
Max Level
This parameter is measured for the eight programs defined in the
Audio Programs panel, and uses the Momentary Loudness
values.
• Enable the alarm by selecting the checkbox.
• Select the Apply To All checkbox to apply the next alarm
settings modifications simultaneously to all eight programs.
The user sets the detection parameters for this error using three
sliders:
• Threshold (dBFS) – sets the signal level above which Max
Level will be considered to have been detected.
• Set Duration (sec) – sets the time interval over which Max
Level must be continuously detected before the error is
flagged.
• Clear Duration (sec) – sets the time interval over which a
non-Max-Level signal (i.e. below the Threshold) must be
continuously present to clear the alarm if it has been set.
Use the LED Color pulldown to choose the color that will be
displayed by the status LED on the card edge when a Max Level
alarm is set. Choices are:
• Green, Yellow, Red, Flashing Red
Min Level
This parameter is measured for the eight programs defined in the
Audio Programs panel, and uses the Momentary Loudness
values.
• Enable the alarm by selecting the checkbox.
• Select the Apply To All checkbox to apply the next alarm
settings modifications simultaneously to all eight programs.
The user sets the detection parameters for this error using three
sliders:
• Threshold (dBFS) – sets the signal level below which Min
Level will be considered to have been detected.
• Set Duration (sec) – sets the time interval over which Min
Level must be continuously detected before the error is
flagged.
• Clear Duration (sec) – sets the time interval over which a
non-Min-Level signal (i.e. above the Threshold) must be
continuously present to clear the alarm if it has been set.
Figure 5-19 Alarms – Audio – Max Level
Figure 5-20 Alarms – Audio – Min Level