Sam Sirius 840 User Manual page 146

Sirius 800 Series User Manual
Function
Sync Function
Summary tab (Standard & Mode) for each video input standard
Frame Sync Indicator
Delay Indicator
Table 28
Frame/Line Sync
A video output signal can set to frame or line sync to a video reference signal (physical or
derived) as long as the video output signal and reference frame rates match. An offset can be
applied to the input signal relative to the frame or line sync to allow for delays later in the
system.
The offset for frame sync is set in frames, lines and pixels or in milliseconds. The offset for
line sync is set in pixels or in milliseconds. The offset settings can be preset for each standard
of video signal that might be expected to be input to the channel. Video offset is set in steps of
0.00001 ms up to a maximum of 14 frames for progressive video standards or 14 fields for
interlaced video standards.
The embedded audio can be sourced from before or after the frame sync block using the
Pre/Post Selector as required.
Each video standard has a tab for frame sync configuration and a tab for delay configuration.
The signal standard is auto detected and the channel uses the settings defined in the
appropriate Frame sync or Delay tab for that standard.
The example in Figure 100 shows:
1080i50 - set to Ref 1 so a 1080i50 signal will use frame sync settings in the 1080i FS tab.
1080i59 - set to Lock to Input so a 1080i59 signal will use delay settings in the 1080i Delay
tab.
1080i60 - set to Lock to Input so a 1080i60 signal will use delay settings in the 1080i Delay
tab.
Iss 5 Rev 7
5919 Sirius 800 Video AHP Input Module with Delay and Sync
Frame Sync/Delay Summary Screen
Figure 100 Example Workbench 1080i Frame Sync Settings Tab
Function Description
Select to sync to frame or to line by clicking on the required option.
Green when frame sync is enabled for the video standard.
Red when frame sync is not enabled for the video standard
Green when video delay is enabled for the video standard.
Red when video delay is not enabled for the video standard
Page 146
Input Rear Panels and Input
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