Nevion UDC-3G-XMUX4+ - Manual (Page 22)

UDC-3G-XMUX4+ Rev. C
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Note that if an audio input is not present, the user will still be allowed to select
this input from the matrix, but the output will go to a fallback position. Missing
audio inputs will be shown in the block-diagram as a red cross over the
corresponding matrix input line.
The information text below the dynamic block diagram lists information not easily conveyed
in a graphical manner.
Common scaler settings denote the output format, which is selectable under the same
heading in the Configuration page.
Active scaling: This shows which aspect ratio conversion is currently performed by the card.
Indirectly it also shows why this conversion has been selected: If the text starts with
“Default:” it means that this is the conversion that the user has selected as the default
scaling. This in turn means that the user has either selected the scaling manually,or that no
aspect ratio information was detected in the video to select the proper scaling automatically.
Conversely,
of the text starts with “Auto:” it means that the card has valid aspect ratio
information in the form of AFD, VI, WSS or SMPTE352, and that the conversion has been
selected automatically to suit the output environment specified by the user.
Phase delay denotes the time difference in samples between incoming sync source and
outgoing video signal.
AES input delay shows the delay (in 48 kHz audio samples) between incoming AES stream
and AES stream going into the cross-point switch. These delay blocks are not shown in the
graphics.
Signal integrity shows the incoming video format and counts errors found on this signal. The
error mask is set up in the Signal integrity block on the configuration page. To reset the
counter to 0, press the Reset button.
DE-embedded datalink gives the status and bitrate of the data de-embedded from an AES
stream. Which AES stream to de-embed data from is selected in the audio cross-point
switch. This datalink is a Nevion proprietary standard and embedding of such data can be
done with the AV/AAV-HD(SD)-XMUX.
3.2.2 Configuration page
The configuration page is shown over the next two pages. The different configuration
parameters are explained in detail in the following sub-chapters. The order the settings are
presented in roughly follows the data path inside the UDC-3G-XMUX4, rather than the order
of the settings in the graphical user interface.