2-23
Chapter 2: Motherboard information
14. Serial Port headers (10-pin COM1~2)
These headers are for serial (COM) ports. Connect the serial port module
cable to the header, then install the module to a slot opening at the back of
the system chassis.
NOTE:
The COM module is purchased separately.
PIN 1
COM1
DCDN SOUTN
GND RTSN
Ring / +5V / +12V
SINN DTRN DSRN CTSN (NC)
PIN 1
COM2
DCDN (422TXD- / 485TXD-)
SOUTN ()
GND RTSN
Ring / +5V / +12V
SINN ( / ) DTRN (422RXD-) DSRN CTSN (NC)
A B
A
B
13. Debug Card connector
This connector allows connection to a Debug card.
DEBUG
F_SERIRQ#
S_LDRQ#
S_LDRQ1#
PCH_24M_2_R_DEBUG
GND
S_PLTRST#
F_FRAME#
+3V
F_LAD3
F_LAD2
F_LAD1
F_LAD0
PIN 1