Grass Valley ADX-1901 - Manual (Page 30)

GUIDE TO INSTALLATION AND OPERATION
26 | ADX-1901
Use the LED Color pull-down to choose the color that will be displayed by the status LED on the card edge when a
SMPTE-2020 alarm is set. Choices are:
• Green, Yellow, Red, Flashing Red
DVITC/ATC
This alarm checks the presence of a DVITC or an ATC Time
Code inserted in the input video signal.
Enable the alarm by selecting the checkbox.
The user sets the detection parameters for this error using two
sliders:
• Set Duration (sec) – sets the time interval over which
DVITC/ATC must be continuously absent on the video
input before the condition is flagged and the alarm is set.
• Clear Duration (sec) – sets the time interval over which
DVITC/ATC must be continuously present to clear the
alarm if it has been set.
Use the LED Color pull-down to choose the color that will be
displayed by the status LED on the card edge when a
DVITC/ATC alarm is set. Choices are:
• Green, Yellow, Red, Flashing Red
5.9.3 Alarms – Audio panel
The Audio alarms are detected after the Audio Output stage, just
before the Digital to Analog converters.
Overload
The overload detection is True Peak.
• 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 above which an
overload will be considered to have been detected.
• Set Duration (sec) – sets the time interval over which an
overload must be continuously detected before the error is
flagged.
• Clear Duration (sec) – sets the time interval over which a
non-overload 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
Figure 5-17 Alarms – Metadata – DVITC
Figure 5-18 Alarms – Audio – Overload