... Global Positioning Satellite system to provide a very accurate time reference for power system. The output signal formats are configured to match ... AC output, DCF77 output, Ethernet output :Pulse output (PPS/PPM/PPHH/PPH):Dry output,TTL output,422/485 outputIRIG-B output:DC output (TTL output and 422/485 output),AC outputDCF77 output:Dry outputSerial output ...