Chapter 2 – Hardware Information31Fanless Embedded Box PC AEC-66372.4.16 +5VSB Output w/SMBus (CN18)Pin Pin Name Signal Type Signal level1 SMB_DATA I/O +3.3V2 GND GND3 SMB_CLK I/O +3.3V4 GND GND5 PS_ON# OUT +3.3V6 +5VSB PWR +5V2.4.17 Touch Screen Connector (CN19)4-wirePin Pin Name Signal Type Signal level1 GND GND2 TOP IN3 BOTTOM IN4 LEFT INSMB_DATA16GNDSMB_CLKGNDPS_ON#+5VSBGND 191919TOP EXCITEBOTTOM EXCITELEFT EXCITERIGHT EXCITETOP SENSEBOTTOM SENSELEFT SENSERIGHT SENSEGNDTOPBOTTOMLEFTRIGHTNCNCNCNCGNDUL(Y)UR(H)LL(L)LR(X)SENSE(S)NCNCNC8 Wires 4 Wires 5 Wires