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TimeProvider 500 2.0 User’s Guide
098-00172-000 Revision A – December, 2009
T1 Format
T1 Format
Example:
¬T1 003125 11182009 00 03 00022800 22 53
Table A-2. T1 Format
Byte
Datatype
Description
0
0xAA
1 bit binary
SYNC character = 0xAA
1-2
“T1”
2 bytes ASCII
Mode string = “T1”
3-8
“003125”
6 bytes ASCII
time value (hhmmss) can be set to UTC,
local, GPS, or TAI timescale
9-16
“11182009”
8 bytes ASCII
date value (ddmmyyyy)
17-18
“00”
2 bytes ASCII
FOM = Output TDEV Estimate / 100.0
19-20
“03”
2 bytes ASCII
Status Word
Bit 7 – +1 pending leap sec
Bit 6 – -1 pending leap sec
Bit 5 – not used
Bit 4 – not used
Bit 3 – not used
Bit 2 – Bit 0 =
0 = FLL_UNKNOWN
1 = FLL_WARMUP
2 = FLL_FAST
3 = FLL_NORMAL
4 = FLL_BRIDGE
5 = FLL_HOLD
Summary of Contents for TimeProvider 500
Page 10: ...Table of Contents 10 TimeProvider 500 2 0 User s Guide 098 00172 000 Revision A December 2009 ...
Page 12: ...List of Figures 12 TimeProvider 500 2 0 User s Guide 098 00172 000 Revision A December 2009 ...
Page 146: ...146 TimeProvider 500 2 0 User s Guide 098 00172 000 Revision A December 2009 T1 Format ...
Page 174: ...Index W W 174 TimeProvider 500 2 0 User s Guide 098 00172 000 Revision A December 2009 ...