AAEON IMBM-Q67A - Manual (Page 31)

2-23 Chapter 2: Motherboard information
14. Serial port connectors (10-1 pin COM1/2)
These connectors are for serial (COM) ports. Connect the serial port module
cable to this connector, then install the module to a slot opening at the back
of the system chassis.
NOTE: The COM module is purchased separately.
15. Digital I/O connector (10-pin DIO1)
This connector includes 8 I/O lines. All of the Digital I/O lines are
programmable and each I/O pin can be individually programmed to support
various devices.
NOTE: To configure the I/O pins in BIOS, click Advanced tab > SIO GPIO >
GPIO 1~8. See section 3.4.12 SIO GPIO for details.
IMBM-Q67A
IMBM-Q67A Serial port connectors
COM1
PIN 1
COM2
DCD
TXD
GND
RTS
RI
RXD
DTR
DSR
CTS
PIN 1
DCD
TXD
GND
RTS
RI
RXD
DTR
DSR
CTS
IMBM-Q67A
IMBM-Q67A DIO connector
PIN 1
DIO1
+5V
GPIO06 (DIO_O#3)
GPIO04 (DIO_O#1)
GPIO02 (DIO_I#3)
GPIO00 (DIO_I#1) GND
GPIO07 (DIO_O#4)
GPIO05 (DIO_O#2)
GPIO03 (DIO_I#4)
GPIO01 (DIO_I#2)