Format Bbc-02 - Spectracom SecureSync 1200 User Reference Manual

APPENDIX
T
ye
mo
da
dw
ho
mi
sc

5.4.14.2 Format BBC-02

This is a hexadecimal frame/message sent twice per second. The message should be sent such
that the final "99" occurs at 0 msec and 500 msec.
Number of bytes: 26
Format:
START
AA
Millisecond
02 BA
GPS Second
09 3A 7E 12
Where:
Leap Second Sign:
01=Positive
FF=Negative
00=No leap second
516
Indicates the synchronous moment for the time setting.
Year (00-99)
Month (01-12)
Day of month (01-31)
Day of week (01=Monday to 7=Sunday)
Hours (00-23)
Minutes (00-59)
Seconds (00-59)
Year Month Day Hour Min Sec.
AA 07 DA 06 16
Time
Daylight
Zone
80 00 00
GPS to UTC Offset Check-sum END
FE
13 59 01
Leap- Leap-
Leap- second
second second
Month
Sign Zone
00 00 00
99 99
GPS
Week
1A 2A
SecureSync User Reference Guide