Spectracom SecureSync User Reference Manual page 487

CR Carriage Return
LF Line Feed
I Time Sync Status (space, ?, *)
Q Quality Indicator (space, A, B, C, D)
YY Year without century (99, 00, 01, etc.)
^ Space separator
DDD Day of Year (001-366)
HH Hours (00-23 UTC time)
: Colon separator
MM Minutes (00-59)
: Colon separator
SS (00-60)
. Decimal separator
SSS Milliseconds (000-999)
L Leap Second indicator (space, L)
D Daylight Saving Time Indicator (S,I,D,O)
The leading edge of the first character (
The time synchronization status character (
(Space) Whenever the front panel time synchronization lamp is green.
? 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.
The quality indicator (
receiver is unable to track any GNSS satellites, a timer is started. "Quality indicators" on the next
page lists the quality indicators and the corresponding error estimates based upon the GNSS
receiver 1PPS stability, and the time elapsed tracking no satellites. The Tracking Zero Satellites
timer and the quality indicator reset when the receiver reacquires a satellite.
Quality Time (hours) TXCO Error (milliseconds)
Space Lock
A <10
SecureSync User Reference Guide
) marks the on-time point of the data stream.
CR
) is defined as described below:
I
) provides an inaccuracy estimate of the output data stream. When the
Q
<1
<10
OCXO Error Rubidium Error
(milliseconds) (microseconds)
<0.01 <0.3
<0.72 <1.8
APPENDIX
471