EEG DE285 HD Caption Decoder/VANC Monitor - EEG Enterprises

DE285 HD Caption Decoder/VANC MonitorAlarm NameVideo Frame ErrorCaption ErrorXDS ErrorVANC on Illegal LineInvalid ANC PacketChecksumDescriptionSets an alarm that goes off when there is anerror involving the video signal.Sets an alarm that goes off when a captionerror is detected. A complete list of captionerrors can be found after this table.Sets an alarm that goes off when there is anerror involving the Extended Data Servicespackets.Sets an alarm that goes off when there is anerror involving VANC on a different line thanwhat’s depicted in the SMPTE specificationSets an alarm that goes off when an invalidANC packet checksum is detected.The following table lists each Caption Error and provides a short description.Caption ErrorCDP header not foundCDP footer not foundCDP sections out of orderCDP sequence mismatchCDP header/footer sequencemismatchDescriptionThe body of a VANC packet did not begin with0x96 0x69, which marks the start of a CDP.The CDP footer section wasn’t found. Sincethe footer includes the checksum, the decoderwill not process such packets.The CDP should contain the following sections,in this order: a header, an optionaltimecode section, an optional caption datasection, an optional caption service info section,and a footer. If one or more of those wasout of order, you’ll see this message.The CDP header contains a 16-bit sequencecounter which should increment by one eachframe. If you see this, the sequence numbersjumped between two VANC packets.The CDP footer contains a copy of the headersequence counter; in this case, they were notidentical.Copyright ©2009-2011 EEG Enterprises, Inc.All rights reserved.31