17
System Panel Header
This header accommodates
(9-pin PANEL1)
several system front panel
(see p.8, No. 14)
functions.
Connect the power switch, reset switch and system status indicator on the
chassis to this header according to the pin assignments below. Note the
positive and negative pins before connecting the cables.
PWRBTN (Power Switch):
Connect to the power switch on the chassis front panel. You may conigure
the way to turn off your system using the power switch.
RESET (Reset Switch):
Connect to the reset switch on the chassis front panel. Press the reset
switch to restart the computer if the computer freezes and fails to perform a
normal restart.
COM Port Headers
(9-pin COM1: see p.8, No. 10)
(9-pin COM2: see p.8, No. 11)
(9-pin COM3: see p.8, No. 12)
(9-pin COM4: see p.8, No. 13)
1
2
PIN
Signal
Name
PIN
Signal
Name
PIN
Signal
Name
PIN
Signal
Name
PIN
Signal
Name
10
+12V
8
CCTS#
6
DDSR#
4
DDTR#
2
RRXD
9
+5V
7
RRTS#
5
GND
3
TTXD
1
DDCD#
PIN
RS232
RS422
RS485
1
DCD
TX-
RTX-
2
RXD
RX+
N/A
3
TXD
TX+
RTX+
4
DTR
RX-
N/A
5
GND
GND
GND
6
DSR
N/A
N/A
7
RTS
N/A
N/A
8
CTS
N/A
N/A
9
+5V
+5V
+5V
10
+12V
+12V
+12V
This motherboard supports RS232/422/485 on COM1 port. Please refer to below
table for the pin deinition. In addition, COM1 port (RS232/422/485) can be adjusted
in BIOS setup utility > Advanced Screen > Super IO Coniguration. You may refer to
page 31 for details.
COM1 Port Pin Deinition
G
N
D
R
E
S
E
T
#
P
W
R
B
T
N
#
P
L E
D
-
P
L E
D
+
G
N
D
H
D
L E
D
-
H
D
L E
D
+
1
GND
