Chapter 2 – Hardware Information 18Mobile NVR VPC-3350S2.4.5 Digital IO Connector (CN19)Pin Signal Pin Signal1 GND 6 +5V2 GPIO Port1 7 GPIO Port53 GPIO Port2 8 GPIO Port64 GPIO Port3 9 GPIO Port75 GPIO Port4 10 GPIO Port8GPIO Mapping for DIO Connector (CN19)Pin Signal GPIO Mapping Pin Signal GPIO Mapping2 Bit0 Mapping SIO GP80 7 Bit4 Mapping SIO GP843 Bit1 Mapping SIO GP81 8 Bit5 Mapping SIO GP854 Bit2 Mapping SIO GP82 9 Bit6 Mapping SIO GP865 Bit3 Mapping SIO GP83 10 Bit7 Mapping SIO GP872.4.6 Software Reset (SW2) GPIO MappingSW2 GPIO MappingMapping SIO F81866 GP76