Ensemble Designs BrightEye NXT 410 Clean HDMI Router - Manual (Page 40)

www.ensembledesigns.com Page 40
BrightEye NXT 410/415/430 Compact Router Installation, Configuration and Operations Guide
About Clean Switches and Clean Switch Configuration
The two built-in clean switches for the BrightEye NXT 410 and BrightEye NXT 430 are useful when
switching between asynchronous sources or for taking a router output directly to air. When a Clean
Switch is assigned to an output port, its input is fed from the routing matrix and it drives the output
connector. Any source in the Router switched to this output will be presented synchronously and
timed.
Configuration of the Clean Switch includes its video format, timing, and embedded audio group
enables.
Genlocked to Reference
The Clean Switch is genlocked to the reference being used within the Router. This ensures that the
output is stable regardless of the input signal. Not only does this ensure clean switching between un-
timed and even asynchronous sources, it also guarantees a stable, Black output upon loss of input.
Embedded Audio
In parallel with the video processing, 16 channels of embedded audio are silently switched as well.
Incoming audio is disembedded, sample rate converted, switched, and then embedded into the
output. The audio processing includes a delay mechanism to compensate for the delay imposed on
the video by the frame sync. This compensation ensures that the time relationship (lip-sync) between
audio and video is maintained.
Output Port Following a Clean Switched Destination
If an output port has been configured to Follow a Destination which has a Clean Switch assignment,
that port will also deliver the Clean Switch output. That port set to Follow will not be seen as a
destination on a control panel because there is still only one Destination. The conceptual effect of this
is to have incorporated an output DA (Distribution Amp) into the Router.
Clean Switch Output Timing
Using the Output Timing control, you can adjust the timing of the Clean Switch relative to the genlock
reference. The best or most appropriate setting for the timing controls will depend upon the way in
which the Clean Switch is to be used and the nature of the video inputs.
Setting the H and V parameters to 0 will “zero” time the Clean Switch, matching it to the reference.
Negative values will cause the Clean Switch to be early with respect to the reference; positive values
will make the Clean Switch output later in time.
Clean Switch / Frame Sync
In Out
Genlock