Spectracom Format 3 - Spectracom SecureSync User Reference Manual

APPENDIX
Quality Time (hours) TXCO Error (milliseconds)
B
C
D
Table 8-1:
The leap second indicator (L) is defined as:
The Daylight Saving Time indicator (D) is defined as:
E x a m p l e :
?A15 271 12:45:36.123 S
The example data stream provides the following information:
Sync
Status
Date
Time
8.1.8

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 structure is shown below:
472
<100 <100
<500 <500
>500 >500
Quality indicators
(Space) When a leap second correction is not scheduled for the end of the month.
L When a leap second correction is scheduled for the end of the month.
S During periods of Standard time for the selected DST schedule.
I During the 24-hour period preceding the change into DST.
D During periods of Daylight Saving Time for the selected DST schedule.
O During the 24-hour period preceding the change out of DST.
The clock has lost GNSS time sync. The inaccuracy code of "A" indicates the expected time
error is <10 milliseconds.
Day 271 of year 2015.
12:45:36 UTC time, Standard time is in effect.
OCXO Error Rubidium Error
(milliseconds) (microseconds)
<7.2 <18
<36 <90
>36 >90
SecureSync User Reference Guide