NRS70 Series
SECTION 4
NRS70OPS
070803 Version 1 Issue 2
www.snellwilcox.com
4.21
◀
GPI 2 Select
This item allows the function of GPI 2 input to be
changed.
GPI 2
Audio Delay Flag
GPI 2 Select
◀
GPI 2
When selected GPI 2 will function normally in the
same manner as the GPI 1 input.
◀
Audio Delay Flag
When this is selected GPI 2 will provide an
output
signal
that
remains
high
for
a
duration
corresponding to the total audio delay through the
unit.
The audio delay is comprised of the measured
input to output system delay plus the amount of
Audio Delay Offset. The minimum is 1 ms.
This signal may be used by other equipment to
compensate for the video delay introduced by the
NRS70.
◀
◀
◀
◀
VI Blanking
This function is used to select which lines of the
Vertical Blanking Interval are to be blanked and
which ones are to be passed through unprocessed.
VI Blank 525...
VI Blank 625...
VI Blanking
◀
VI Blank 525
This function reveals a menu that allows individual
525 standard vertical interval lines to be selected.
VI Blank 525
Blank All
Line 10
to
Line 20
Pass All
Line 273
to
Line 282
◀
Blank All
When selected all VBI data lines will be blanked.
Pass All
▶
When selected all VBI data lines will be passed.
◀
Line 10 to 20
Line 273 to 262
▶
Selecting lines from this list will blank the VBI data
on that line.
If the line is unselected the VBI data on that line
will be passed through unprocessed.
For the line 21/283 controls see page 4.8.
◀
VI Blank 625
This function reveals a menu that allows individual
625 standard vertical interval lines to be selected.
VI Blank 625
Blank All
Line 6
to
Line 22
Line 335
Pass All
Line 318
to
Line 334
◀
Blank All
When selected all VBI data lines will be blanked.
Pass All
▶
When selected all VBI data lines will be passed.
◀
Line 6 to 22 & 335
Line 318 to 334
▶
Selecting lines from this list will blank the VBI data
on that line.
If the line is unselected the VBI data on that line
will be passed through unprocessed.
For the line 23 controls see page 4.8.
