Advantech Industrial Mini-ITX Motherboard with DDR2/Dual GbE/PCI AIMB-221 - Manual (Page 40)

AIMB-221 User Manual 30
2.10 JSETCOM1
JSETCOM1
pin.1 COM1_#RI pin.2
COM1_#RI
pin.3 VCC pin.4
pin.5 VCC12 pin.6