Meinberg GPS170LCD-MP - Manual (Page 54)

54
Generated Time codes
Besides the amplitude modulated sine wave signal, the board also provides unmodula-
ted DC-Level Shift TTL output in parallel. Thus six time codes are available.
a) B002: 100pps, PWM DC signal, no carrier
BCD time of year
b) B122: 100pps, AM sine wave signal, 1 kHz carrier frequency
BCD time of year
c) B003: 100pps, PWM DC signal, no carrier
BCD time of year, SBS time of day
d) B123: 100pps, AM sine wave signal, 1 kHz carrier frequency
BCD time of year, SBS time of day
e) B006: 100pps, PWM DC signal, no carrier
BCD time of year, year number ( 0...99 )
f) B126: 100pps, AM sine wave signal, 1 kHz carrier frequency
BCD time of year, year number ( 0...99 )
g) B007: 100pps, PWM DC signal, no carrier
BCD time of year, SBS time of day, year number ( 0...99 )
h) B127: 100pps, AM sine wave signal, 1 kHz carrier frequency
BCD time of year, SBS time of day, year number ( 0...99 )
i) AFNOR: Code according to NFS-87500, 100pps,
AM sine wave signal, 1kHz carrier frequency,
BCD time of year, complete date, SBS time-of-day,
Signal level according to NFS-87500
j) IEEE1344: Code according to IEEE1344-1995, 100pps,
AM sine wave signal, 1kHz carrier frequency,
BCD time-of-year, SBS time of day, IEEE1344
extensions for date, timezone, daylight-saving
and leap second in control functions (CF) segment.
see also table 'Assignment of CF segment in IEEE1344 mode'
Selection of Generated Time Code
The time code to be generated can be selected by Menu Setup IRIG Settings or the
GPS Monitorprogram. DC-Level Shift Codes (PWM signal) B00x and modulated
sine wave carrier B12x are always generated simultaneously. Both signals are provi-