5.5.3 IRIG B Output
The IRIG B Time Code description follows.
Figure 5-66: IRIG B time code description
The IRIG B code contains the Binary Coded Decimal (BCD) time of year, Control Function (CF)
field and the Straight Binary Seconds time of day. The following figure illustrates the IRIG B
data structure. The BCD time of year provides the day of the year, 1-366, and the time of day
including seconds. The hour of the day is expressed in 24 hour format. The SBS time is the num-
ber of seconds elapsed since midnight. The Control Function field contains year information
and a time synchronization status bit.
548 SecureSync User Reference Guide
APPENDIX
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