Grass Valley ADC-1101 - Manual (Page 19)

GUIDE TO INSTALLATION AND OPERATION
ADC-1101 | 15
3.3.7 The Blanking group
This panel allows the Vertical Blanking Interval
(VBI) processing to be specified. Options available
are:
• Process - Process any VBI information
present at the input with the same gain and
offset parameters used for the active video
(these are set in the video processing tab)
• Pass – Send any VBI information present at
the input to the output SDI signal without
modification
• Blank – Replace any information that may
have been present on a specific VBI line with
black.
Apply an option to the entire VBI by selecting the
option in the VBI box. If Line by Line is selected,
the option can be specified for each individual line,
in the Line By Line area.
Extended VBI:
The contents of this box depend on the input signal
line rate:
• 625 line: Click in the checkbox to include line 23 (WSS signal) in the VBI.
• 525 line: Click in the check box to include line 21 (closed captioning) in the VBI
3.3.8 The Test group
This panel inserts test signals at the output instead
of the incoming video and/or audio.
Video – click in the checkbox to insert color bars in
the output video
Audio – click in the checkbox to insert audio tones
in the indicated output audio channels
Note – the audio checkboxes will only be active if
there is an audio input signal
Figure 3.13 Blanking group
Figure 3.14 Test group