EPSILON CLOCK MODEL EC20S Spectracom
User’s Manual 104
19.1.2 NMEA MESSAGE INPUT
Connector: connector SUB-D9
Input signal characteristic required:
Data and port parameters : ASCII characters, 9600 bauds, 8 bits, 1 stop bit, no parity.
Protocol : <Message> <CR> <LF>
Format : $GPRMC,hhmmss.ss,S,llll.ll,a,yyyyy.yy,a,x.x,x.x,ddmmyy,x.x,a*hh
o RMC = Recommended Minimum Specific GNSS/TRANSIT Data
o hhmmss.ss = UTC of emitter position fix. Must be date the last EXT_1PPS
o S = status of the emitter (A = OK, V=warning).
o llll.ll = Latitude of emitter, not used by the EPSILON CLOCK MODEL EC20S
o a = N or S (North or South) of emitter, not used by the EPSILON CLOCK MODEL EC20S
o yyyyy.yy = Longitude of emitter, not used by the EPSILON CLOCK MODEL EC20S
o a = E or W (East or West) of emitter, not used by the EPSILON CLOCK MODEL EC20S
o x.x = not used by the EPSILON CLOCK MODEL EC20S
o x.x = not used by the EPSILON CLOCK MODEL EC20S
o ddmmyy = UTC date
o x.x = not used by the EPSILON CLOCK MODEL EC20S
o a = not used by the EPSILON CLOCK MODEL EC20S
o *hh = Checksum
NOTA: When the status sent is V and /or the checksum sent is incorrect, the NMEA message is not
used by the EPSILON CLOCK MODEL EC20S.
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