10
COM3-6: Internal RS-232 Serial Port Connectors
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1
DCD
2
DSR
3
RXD
4
RST
5
TXD
6
CTS
7
DTR
8
RI
9
GND
10
GND
COM1/2 : Internal RS-232/RS-422/RS-485 Serial Port Connectors
Mode
RS-232
RS-422
RS-485
PIN NO.
DESCRIPTION DESCRIPTION DESCRIPTION
1
DCD
TXD422-
TXD485-
2
RXD
3
TXD
4
DTR
RXD422-
5
GND
GND
GND
6
DSR
7
RTS
8
CTS
9
RI
J_SPI1/J_EC1: J_SPI1 Connector for System BIOS. J_EC1
Connector for EC ROM.
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1
+3.3V
4
Clock
2
CS#
5
MOSI
3
MISO
6
GND
SATA_PWR1/SATA_PWR2: SATA HDD Power Connector
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1
+12V
2
GND
3
GND
4
+5V
