DOC 6501_Release V
ATS-6501 Users Guide
69
that detect a 1PPS input. The measurements will automatically be output once the averaging is
complete based on the settings ptd_port value.
Ch0 - Ch41 (20 event average): 7.964 ns 1276616379 S 594583 uS; sd: 0.053169 ns
Ch0 - Ch42 (20 event average): 8.444 ns 1276616379 S 596166 uS; sd: 0.045333 ns
Ch0 - Ch43 (20 event average): 15.995 ns 1276616379 S 597470 uS; sd: 0.053169 ns
Ch0 - Ch44 (20 event average): 15.695 ns 1276616379 S 598818 uS; sd: 0.035163 ns
Ch0 - Ch41 (20 event average): 7.938 ns 1276616399 S 594336 uS; sd: 0.042749 ns
Ch0 - Ch42 (20 event average): 8.418 ns 1276616399 S 595947 uS; sd: 0.052346 ns
Ch0 - Ch43 (20 event average): 15.995 ns 1276616399 S 597289 uS; sd: 0.053169 ns
Ch0 - Ch44 (20 event average): 15.712 ns 1276616399 S 598651 uS; sd: 0.067684 ns
The data fields are described below:
• Ch0: 6501 internal 1PPS
• ChXY: X = Slot #, Y = Port #.
• (NN event averaging): Number of averages used to compute the results.
Note: Typically the value of the settings ptd_port. This value may be different for a set
of measurements once the outputs are enabled, the user changes the averaging value, or
the port is connected or disconnected during the measurement period.
• NN.NNN ns: Measurement results.
• XXXXXXXXXX S: The second (from 1 Jan 1970) when the average was computed.
• NNNNNNN uS: The fractional second the average was computed. This value plus the
number of seconds provides the time stamp when the average was computed.
• sd: X.XXXXXX ns: Standard deviation of the measurement.
3.4.3.6 Raw TIC Data Port (2101)
This port provides users with raw measurement results from each of the 4393A TIC Cards
installed in the ATS-6501. The measurements will only be available for the port(s) on the card(s)
that detect a 1PPS input. The measurements will automatically be output once per second.
Ch0 - Ch43 (1 event average): 16.042 ns 1276616720 S 134860 uS; sd: 0.000000 ns
Ch0 - Ch44 (1 event average): 15.698 ns 1276616720 S 171247 uS; sd: 0.000000 ns
Ch0 - Ch41 (1 event average): 7.917 ns 1276616720 S 234528 uS; sd: 0.000000 ns
Ch0 - Ch42 (1 event average): 8.469 ns 1276616720 S 272801 uS; sd: 0.000000 ns
Ch0 - Ch41 (1 event average): 7.917 ns 1276616721 S 131575 uS; sd: 0.000000 ns
Ch0 - Ch42 (1 event average): 8.367 ns 1276616721 S 147795 uS; sd: 0.000000 ns
Ch0 - Ch43 (1 event average): 16.042 ns 1276616721 S 161232 uS; sd: 0.000000 ns
Ch0 - Ch44 (1 event average): 15.698 ns 1276616721 S 193148 uS; sd: 0.000000 ns
The data fields are described below:
• Ch0: 6501 internal 1PPS
• ChXY: X = Slot #, Y = Port #.
• (NN event averaging): Should always display 1 event average.
• NN.NNN ns: Measurement results.
• XXXXXXXXXX S: The second (from 1 Jan 1970) when the average was computed.
• NNNNNNN uS: The fractional second the average was computed. This value plus the
number of seconds provides the time stamp when the average was computed.
• sd: 0.00000 ns: Standard deviation should always be ZERO.