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:

Example:

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:

(Space)	When NetClock is synchronized to UTC source.
*	When NetClock time is set manually.
?	When NetClock has not achieved or has lost synchronization to UTC source.

The time and date can be set to either local time or UTC time, depending upon the configuration of the output port.