Nevion FSR-HD - Manual (Page 12)

FRS-HD Rev. G
nevion.com | 12
For a scenario where the card receives different HD video standards, (e.g.
1080i25 and 720p50) the user may want to conserve a specific delay in
microseconds for all HD video standards. This is accomplished by specifying
the delay in number of samples instead of frames and lines. (For HD video
standards the sample frequency is equal over standards, but the line and
frame frequencies are different for the different standards).
If video input disappears
Given that stable SDI input and sync input exists: If the SDI input disappears, the picture
will freeze for 1 second and then go to black video if the card is in the default
configuration.
It is possible to change the freeze time (hold time in GYDA). The black video can also
be changed to color bar, check field or flat field video through Gyda.
When the SDI input disappears, the Frame Delay pulses at the back plane will also
disappear.
If video input reappears
Given stable sync input, the video will reappear after 1 second of locked video input if
card is in default settings. It is possible to change the time before reappearance. This
variable is labeled lock time in GYDA.