Meinberg GPS169PCI - Manual (Page 20)

20
Generated timecodes
The board GPS169PCI generates modulated unmodulated (TTL into 50
Ω) time-
codes, so that six different signals are available:
a) B002: 100pps, DC-signal, no carrier
BCD time of year
b) B122: 100pps, AM-sinewave signal, 1 kHz
BCD time of year
c) B003: 100pps, DC-signal, no carrier
BCD time of year, SBS time of day
d) B123: 100pps, AM-sinewave signal, 1 kHz
BCD time of year, SBS time of day
e) AFNOR: Code according to NFS-87500, 100pps, AM-sinewave signal, 1kHz
BCD time of year, complete date, SBS-Time of Day
f) IEEE1344: Code. according to IEEE1344-1995, 100pps, AM-sinewave signal, 1kHz
BCD time of year, SBS time of day,
IEEE1344 expansion for date, timezone, daylight saving and leap second
in Control Funktions Segment (CF)
see table „Assignment of CF Segment in IEEE1344 mode“
Modulated and unmodulated signals with the same coding (B002/B122 and B003/
B123) are always available simultaneously via the BNC- and the D-SUB-connector.
Selection of timecode
The selection of timecode is done by the monitor software.
The unmodulated timecode can be delivered as an active-high or active-low signal by
setting a jumper on the board GPS169PCI into the appropriate position: