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Spyder Expansion
Spyder X20 User Manual 156
020-000916-01 Rev. 1 (04-2016)
Seamless Parallel Expansion
The second application of parallel expansion creates one continuous pixel space beyond the limitation of a single
VI. By using multiple Spyder Servers and their individual VI capacity Pixel Renewal Groups are created that
represent portions of responsibility to the entire pixel space. Sources that are required to cover the span of the
entire pixel space require the use of unrestricted layers.
Unrestricted Layers
Unrestricted layers can be displayed anywhere in the PixelSpace, regardless of Renewal Groups, Frames, etc…
These layers are created using a Master Element in a command key or script. Unrestricted layers use one
hardware layer in each Renewal Group to allow a single logical layer to cross renewal group boundaries.
Unrestricted Layers provide the most power, but also consume hardware at a greater rate.
Restricted Layers
Restricted layers can be placed anywhere in their home Pixel Renewal Group. However, Restricted Layers cannot
be shown outside their own Renewal Group, or on the overlap between renewal groups.