User manual

MANO870 Mini ITX Board
Board and Pin Assignments 11
System fan interface is available through SYS_FAN1, see table below.
1
Caution
Do not forget to connect the fan cables to the fan connectors. Insufficient
air flow inside the system may damage the motherboard components.
These are not jumpers! DO NOT place jumper caps on the fan connectors.
2.4.3 COM Connectors (COM2 and COM3)
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.
COM2, COM3
2.4.4 GPIO Connector (JGPIO1)
This connector is for GPIO function.
1
Pin
Signal
1
GND
2
SYSFAN1_VCC(PWM)
3
SYSFAN1_IO
Pin
Signal
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI/PWR
Pin
Signal
1
SIO_GPIO0
2
SIO_GPIO4
3
SIO_GPIO1
4
SIO_GPIO5
5
SIO_GPIO2
6
SIO_GPIO6
7
SIO_GPIO3
8
SIO_GPIO7
9
SMB_CLK_RESUME
10
SMB_DAT_RESUME
11
GND
12
VCC GPIO
1