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IdentifierComparison1Comparison2Comparison3Comparison4Comparison5Comparison6Comparison7Comparison8Comparison9DescriptionBunch crossing number of the GTFE board record and centralbunch crossing number of all other boards must beequal.Bunch crossing number and local bunch crossing numbermust agree on every board record.Within consecutive records for a single board, the localbunch crossing number must be consecutive.All board records must share an identical event number.The relative bunch crossing numbers for every board recordmust be correctly ordered (E,F,0,1,2 or F,0,1).Board identifiers for all records must conform to knownboards.The event number must conform to the central bunch crossingnumber in every record.The luminosity segment number of the TCS record mustmatch that of the FDL record.The orbit number of the TCS record must match that of theTCS record.Table 5.2: A list of the consistency checks applied to the GT readout records producedin pattern tests.• Consistency tests verify the internal consistency of the readout record in anumber of respects. For example, they detect internal synchronization problemsor format errors in the readout. Table 5.2 lists all implemented consistencychecks.• Data tests compare the data contents of the readout record with the expectationsfrom the emulation. Each of the columns 1 from the pattern file is alsopresent in the readout record and can be checked against the original value forcorrectness.5.2.2 Interconnection TestThe interconnection test is optimized to detect low-level electronic problems in theGT crate. It sends preprogrammed signal patterns from the input memories to theGTL. The COND chips on the GTL run in a special bypass mode that disables thealgorithm logic and simply mirrors a subset of the received inputs to the output bits.The basic unit for testing is a group of 64 input bits corresponding to two GMT1 with the current exception of the MIP/Quiet bits, which are not currently sent in the productionsystem.58