Pearl-2 User Guide
About video output ports
Using the video output port takes CPU cycles and adds to the overall load on your Pearl-2. For
optimum performance, keep displays disconnected from the video output port if you're not using
them. Setups that already put a heavy load on the system's CPU may be negatively impacted if
the external video output port is used.
You can use the Admin panel to configure the video output port parameters. If you're simply selecting a video
source or channel and enabling/disabling audio for the output port, you can use your choice of either the
Admin panel, the touch screen on Pearl-2, or Epiphan Live. For channels that have audio, the audio is enabled
by default.
Important considerations
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When changing encoding parameters for a channel that's displayed on the video output port, it may
revert to the display's default resolution if the output resolution is set to "Same as source". To resolve
this, change the video output to a different resolution then back to "Same as source".
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When using the video output port for confidence monitoring, some delay can be expected. For a
1080p video source, the average delay on the video output port is approximately 100 ms. For a 1080p
channel, the average delay on the video output port is approximately 300 ms. The actual amount can
vary, depending on the setup.
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If an SDI or HDMI video input source that is selected to display at the HDMI output port also appears in
a custom layout for a channel, then the channel's encoding settings are used at the HDMI output.
Changing the channel's frame rate will change the frame rate used at the output port for that video
input. If the video source appears in multiple layouts in different channels, the one with the highest
frame rate set in the encoding settings is used.
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Using the video output ports adds to the overall system load on Pearl-2. If your system has a high
system load and you're using the video outputs, monitor the frame rate of your channels on Pearl-2
and adjust your setup if there's an unacceptable drop in the frame rate. Remedial measures you can
take include eliminating video scaling at the inputs, adjusting the encoding bitrates, and deleting extra
layouts and channels that are no longer being used.
Related links
Set up the video output port using the Admin panel
Select the video output source using the touch screen
Monitor and select the video output source using Epiphan Live
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