Ensemble Designs 9430 Flexible Matrix Router for 3G / HD / SD / ASI - Manual (Page 70)

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Avenue 9430 Flexible Matrix Router Installation, Configuration and Operations Guide
Setting Up Timing and Genlock
The 9430 can be locked to a Frame Reference (through the Avenue Frame Master Reference input), or
operated from an internal precision reference. The Reference Source control selects between those
two choices.
The Reference Status indicator displays the status of the currently selected reference.
The Router uses the video format selection of the Primary Test Signal Generator to determine two
system-wide parameters—System Frame Rate, and Vertical Interval Switch Point.
System Frame Rate
Distributed within the Router is a System Frame Rate Reference. It is used to vertically lock the outputs
of the internal Test Signal Generators and the Clean Switch frame syncs. The System Frame Rate is
selected by the Primary Test Signal Generator. If the selected genlock reference is in the same frame
rate family (see the Note on Frame Rates on the next page), the System Frame Rate Reference will also
be locked to the external reference. If the external reference is in a conflicting frame rate family (for
example, SD 525 reference vs. 1080p/50 in the Primary Test Signal Generator), the System Frame Rate
Reference will be internally generated.
Vertical Interval Switch Point
The precise point in the vertical interval where the crosspoint switch will occur is taken from the
timing of the Primary Test Signal Generator. This provides flexibility in the system by allowing, for
example, the use of an SD reference with a matrix that changes at HD switch points.