The example data stream provides the following information:
Sync Status The clock has lost GNSS time sync.
Date Day 271 of year 2015.
Time 12:45:36 UTC time, Standard time is in effect.
5.4.11 Spectracom Format 8
Format 8 includes a time synchronization status character, the four digit year, day of year, time
reflecting Time Zone Offset and DST corrections when enabled. Format 8 also includes the
DST/Standard Time indicator, and the Time Zone Offset value. Format 8 data structure is
shown below:
E x a m p l e :
CR LF I ^ ^YYYY^ DDD ^ HH:MM:SS ^ D+XX CR LF
or
CR LF I ^ ^YYYY^ DDD ^ HH:MM:SS ^ D-XX CR LF
Where:
CR Carriage Return
LF Line Feed
I Time Sync Status (space, ?, *)
YYYY Four digit year indication
^ Space separator
DDD Day of Year (001-366)
HH Hours (00-23)
: Colon separator
MM Minutes (00-59)
SS Seconds (00-60)
D Daylight Saving Time indicator (S,I,D,O)
XX Time Zone Switch Setting (±00…12)
The leading edge of the first character (CR) marks the on-time point of the data stream. Time
sync status character (I) is described below:
NetClock User Reference Guide 401
APPENDIX
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