Grass Valley ADX-1901 - Manual (Page 32)

GUIDE TO INSTALLATION AND OPERATION
28 | ADX-1901
Use the LED Color pulldown to choose the color that will be displayed by the status LED on the card edge when a Min
Level alarm is set. Choices are:
• Green, Yellow, Red, Flashing Red
Silence
• Enable the alarm by selecting the checkbox.
• Select the Apply To All checkbox to apply the next alarm
settings modifications simultaneously to all eight channels.
The user sets the detection parameters for this error using three
sliders:
• Threshold (dBFS) – sets the signal level below which
Silence will be considered to have been detected.
• Set Duration (sec) – sets the time interval over which
Silence must be continuously detected before the error is
flagged.
• Clear Duration (sec) – sets the time interval over which a
non-silent signal (i.e. above 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 Silence
alarm is set. Choices are:
• Green, Yellow, Red, Flashing Red
Phase
The Phase measurements are limited to adjacent channel pairs.
• Enable the alarm by selecting the checkbox.
• Select the Apply To All checkbox to apply the next alarm
settings modifications simultaneously to all four channel
pairs.
The user sets the detection parameters for this error using three
sliders:
• Threshold (degrees) – sets the value above which a
phase error will be considered to have been detected.
• Set Duration (sec) – sets the time interval over which a
phase error must be continuously detected before the
error is flagged.
• Clear Duration (sec) – sets the time interval over which an
in-phase 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 Phase
alarm is set. Choices are:
• Green, Yellow, Red, Flashing Red
Figure 5-21 Alarms – Audio – Silence
Figure 5-22 Alarms – Audio – Phase