About video output ports

Pearl Nano

An HDMI video output port is located on the rear panel of Pearl Nano. The HDMI OUT port is set to display the Auto channel by default, but you can change this using the Admin panel. The video output port is configured to maintain aspect ratio, use the display's default resolution, and include audio at 100% volume. However, the audio meter is not shown by default.

Pearl Nano also has an HDMI video pass through port that outputs the HDMI IN signal with no added latency. The HDMI PASS-THROUGH port is not user configurable and does not modify the input video signal that is passed through.

Using the video output port takes CPU cycles and adds to the overall load on your Pearl Nano. 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

Important considerations

• 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".

• 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.

• 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.

• Using the video output ports adds to the overall system load on the Pearl Nano. If your system has a high system load and you're using the video outputs, monitor the frame rate of your channel on your Pearl Nano 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 and adjusting the encoding bitrates.

• Use MultiViewer to preview multiple sources, including system information like channel status and audio information, on the video output port in a grid for confidence monitoring with minimal impact to system loading.