I n d u s t r i a l M o t h e r b o a r d I M B M - B 7 5 A7 RTS 8 CTS9 RI 10 (kill pin)2.12 FAN Connector (CPU_FAN/CHA_FAN)Pin Signal1 PWM2 SENSE3 VCC4 GND2.13 Digital I/O Connector (DIO1)Pin Signal Pin Signal1 DIO_I#1 (GP50) 2 DIO_I#2 (GP51)3 DIO_I#3 (GP52) 4 DIO_I#4 (GP53)5 DIO_O#1 (GP54) 6 DIO_O#2 (GP55)7 DIO_O#3 (GP56) 8 DIO_O#4 (GP57)9 +5V 10 GND2.14 Front Panel Connector (F_PANEL)Pin Signal Pin Signal1 HDLED+ 2 PLED+3 HDLED- 4 PLED-5 GND 6 PWRBTN#_PANEL7 O_RSTCON#_PR 8 GND9 (NC) 10 (kill pin)Chapter 2 Quick Installation Guide 2-10