Safran SecureSync 2400 - IRIG Carrier Frequencies

5.5.2 IRIG Carrier Frequencies
Each IRIG code specifies a carrier frequency that is modulated to encode date
and time, as well as control bits to time-stamp events. Initially, IRIG applications
were primarily military and government associated. Today, IRIG is commonly
used to synchronize voice loggers, recall recorders, and sequential event loggers
found in emergency dispatch centers and power utilities.
Table 5-31: Available IRIG output signals
Format Encoding Modulation Carrier
Coded Expres-
sions
Bit rate
Time
Frame
Interval
IRIG-A
IRIG-A A000 DCLS N/A BCD
TOY
, CF and
SBS
1000
pps
0.1 sec
IRIG-A A001 DCLS N/A BCD
TOY
, CF 1000
pps
0.1 sec
IRIG-A A002 DCLS N/A BCD
TOY
1000
pps
0.1 sec
IRIG-A A003 DCLS N/A BCD
TOY
, SBS 1000
pps
0.1 sec
IRIG-A A004 DCLS N/A BCD
TOY
,
BCD
YEAR
, CF and
SBS
1000
pps
0.1 sec
IRIG-A A005 DCLS N/A BCD
TOY
,
BCD
YEAR
, and CF
1000
pps
0.1 sec
IRIG-A A006 DCLS N/A BCD
TOY
,
BCD
YEAR
1000
pps
0.1 sec
IRIG-A A007 DCLS N/A BCD
TOY
,
BCD
YEAR
, and
SBS
1000
pps
0.1 sec
IRIG-A A130 AM 10 kHz BCD
TOY
, CF and
SBS
1000
pps
0.1 sec
IRIG-A A131 AM 10 kHz BCD
TOY
, CF 1000
pps
0.1 sec
IRIG-A A132 AM 10 kHz BCD
TOY
1000
pps
0.1 sec
IRIG-A A133 AM 10 kHz BCD
TOY
, SBS 1000
pps
0.1 sec
588 SecureSync 2400 User Manual
APPENDIX