Grass Valley 8977AP-4B - Manual (Page 53)

8977AP-4B/4U — Instruction Manual 53
Remote Configuration
Primary - Secondary Phase Difference
This graphic is provided to show the total phase difference between the
Primary and Secondary reference signals. When the bar is green and
remains in the area before the horizontal indicator, the two references are in
a range where switching between the two will show no measurable distur-
bance in the output video (approximately 72 ns).
When the phase difference is larger than the recommended amount, the bar
will indicate by showing a second red bar. This indicates that the phase dif-
ference is now such that switching between the two references will show a
disturbance in the output. This can be caused by a loss of one of the refer-
ences or a mis-adjustment in the reference output delay of either reference.
The total phase error shown in this graphic represents approximative 1
microsecond.
Figure 33. System Config Web Page