NX-800/800H64Pin No. Name Function4 AUXIO9Refer to “D-sub 25-pin connector specifi ca-tion”.5 DI6 MI27 GND8 AUXIO89 TXD210 RXD211 GND12 AUXIO713 AUXIO614 SB15 AUXO216 AUXO117 AFO18 GNDPin No. Name Function19 DEORefer to “D-sub 25-pin connector specifi ca-tion”.20 AUXIO521 AUXIO422 AUXIO323 AUXIO224 AUXIO125 MESolder LandName Descriptionto GPS receiverDGND GroundRXD2 Data input5V_2 5V power supplyTERMINAL FUNCTIONSolder Pad Interface DescriptionPin Name I/O SignalType Rating and ConditionParameter Min Typ Max UnitOPT1 I/O Digital/CMOS Out/CMOS In with InterruptVIH 2.7 - 3.5 VVIL –0.3 - 0.7 VVOH (Io=–2mA) 2.8 - 3.4 VVOL (Io=2mA) - - 0.7 VOPT3 I/O Digital/CMOS Out/CMOS In with InterruptVIH 2.7 - 3.5 VVIL –0.3 - 0.7 VVOH (Io=–2mA) 2.8 - 3.4 VVOL (Io=2mA) - - 0.7 V26P_RD I Digital/CMOS In with InterruputVIH 2.7 - 3.5 VVIL –0.3 - 0.7 VBaud Rate - - 19200 bps26P_TD O Digital/CMOS OutVOH (Io=–2mA) 2.8 - 3.4 VVOL (Io=2mA) - - 0.7 VBaud Rate - - 19200 bpsOPT4 I/O Digital/CMOS Out/CMOS InVIH 2.7 - 3.5 VVIL –0.3 - 0.7 VVOH (Io=–2mA) 2.8 - 3.4 VVOL (Io=2mA) - - 0.7 VOPT10(USEL) O Digital/AnalogOutput Amplitude - 0.28 - Vp-pCoupling Capacitor 0.1 uFAllowable Load 100 - - kΩPull Down Registor - 470 - kΩ