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 SecureSync is synchronized to UTC source.
* When SecureSync time is set manually.
? When SecureSync 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 con-
figuration of the output port.
5.4.12 Spectracom Format 9
Format 9 provides Day-of-Year and Time information.
E x a m p l e m e s s a g e :
<SOH>DDD:HH:MM:SSQ<CR><LF>
Where:
SOH Start of header (ASCII Character 1)
DDD Day of Year (001-366)
532 SecureSync User Reference Guide
APPENDIX
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