5.3.9 Spectracom Format 3
Format 3 provides a format identifier, time synchronization status character, year, month,
day, time with time zone and DST corrections, time difference from UTC, Standard
time/DST indicator, leap second indicator and on-time marker. The Format 3 data struc-
ture is shown below:
E x a m p l e m e s s a g e :
FFFFI^YYYYMMDD^HHMMSS±HHMMD L # CR LF
Where:
FFFF Format Identifier (0003)
I Time Sync Status (Space, ?, *)
^ Space separator
YYYY Year (1999, 2000, 2001, etc.)
MM Month Number (01-12)
DD Day of the Month (01-31)
HH Hours (00-23)
MM Minutes (00-59)
SS Seconds (00-60)
± Positive or Negative UTC offset (+,-) Time Difference from UTC
HHMM UTC Time Difference Hours Minutes (00:00-23:00)
D Daylight Saving Time Indicator (S,I,D,O)
L Leap Second Indicator (space, L)
# On time point
CR Carriage Return
LF Line Feed
The time synchronization status character (I) is defined as described below:
? When the receiver is unable to track any satellites and the time synchronization lamp is red.
* When the receiver time is derived from the battery backed clock or set manually through the
Setup Port Interface.
310 VersaSync User Manual
APPENDIX
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