Imagine Selenio X100, Installation And Operation Manual

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Selenio X100
Installation and Operation Manual
93
Genlock
The Selenio X100 can lock to an external reference input that can be either tri-level sync
(1080i/1080p/720p) or bi-level sync (NTSC/PAL-B/PAL-M color black or black burst). A digital
audio reference (DARS) signal that is compliant to the AES-11 standard can also be applied.
The Selenio X100 supports the following reference inputs:

NTSC/PAL-B/PAL-M

720p/50, 720p/59, 720p60

1080i/50, 1080i/59, 1080i/60

1080p/25, 1080p/29, 1080p/30
In addition:

720p/50 reference is accepted only when all outputs are 720p/50, 1080p/50 or
1080p/50DL

720p/59 reference is accepted only when all outputs are 720p/59, 1080p/59 or
1080p/59DL

720p/60 reference is accepted only when all outputs are 720p/60, 1080p/60 or
1080p/60DL
Line Sync
The X100 supports minimal processing delay. To enable this feature, select Line Sync mode
under Video > Reference > Control > Reference Lock Mode . For the line sync to
operate, the difference between the input video and reference must be less than +/- 0.5
line. Otherwise frame synchronization will be used, even though the
Reference Lock
Mode is set to Line Sync .
The Channel x Line Sync Window parameter (Video > Reference > Status) indicates if
the video input is within the operational range of the line sync. The Channel x Line Sync
Offset shows the timing difference between the input video and the output reference.
Note: When switching between two video inputs of the same format that are not
synchronized in Line Sync mode, the processing channel output will display video
distortion and video CRC errors.
For the Line Sync to operate, the input video must be timed to the reference input with a
tolerance of +/- 0.5 line (see figure below). Outside this range, frame sync will be used
automatically instead. When the
Line Sync is in operation, the video will undergo minimum
processing delay in the system. This minimum processing delay is dependent on the video
format and is listed in
Table 3-13 .
Note that if the output format is set to Proc Bypass , no video conversion will be done and
the video output will be aligned to the reference with a delay equivalent to the minimum
processing delay for that particular standard (see
Figure 3-34 below). However, if the video
output format is set to a non- Proc Bypass standard, the video will undergo additional
processing delay due to video format conversion and output frame synchronization. The
video output in that case will be aligned to the reference, with no additional delay.