Telestream PRISM MPI, Руководство пользователя

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Application Information
Video Session Application
PRISM MPI-MPX User Manual
194
Note:
For 8bit video, since the unused bits are always low, "-----LL" is displayed when
no other bits are stuck.
•
C Stuck Bits: Displays which of the Chrominance video bits are stuck. If the readout
is "---", then none of the bits are stuck.
CRC STATUS Tab Display
Use the CRC STATUS tab display to view the status of CRC and Checksum errors in the
video signal.
Elements of the CRC STATUS tab display
Note:
The instrument uses the SMPTE RP165 standard for error checking. For HD and
3 Gb/s signals, the CRCs change on every video line.
•
Y Chan CRC Error: Displays the status of the Y channel embedded CRC (Cyclical
Redundancy Check) that was calculated for the video signal. Using a known test
signal, the CRC status can be used to verify integrity through a system. An error
means that the Y Channel embedded CRC value does not match the calculated CRC
value, which indicates that a transmission error has occurred.
•
C Chan CRC Error: Displays the status of the C channel embedded CRC (Cyclical
Redundancy Check) that was calculated for the video signal. Using a known test
signal, the CRC status can be used to verify integrity through a system. An error
means that the C Channel embedded CRC value does not match the calculated CRC
value, which indicates that a transmission error has occurred.
•
Y Anc Checksum Error: Displays the status of the Y channel ancillary embedded
checksum value that was calculated for the video signal. Using a known test signal,
the checksum status can be used to verify integrity through a system. An error
means that the Y Channel embedded checksum value does not match the
calculated checksum value, which indicates that a transmission error has occurred.
•
C Anc Checksum Error: Displays the status of the C channel ancillary embedded
checksum value that was calculated for the video signal. Using a known test signal,
the checksum status can be used to verify integrity through a system. An error