21
Chassis Intrusion Headers
This motherboard supports
(2-pin CI1, CI2: see p.12, No. 29)
CASE OPEN detection feature
that detects if the chassis cover
has been removed. This feature
requires a chassis with chassis
intrusion detection design.
Close: Active Case Open
Open: Normal
1
Signal
GND
COM Port Headers
(10-pin COM1: see p.12, No. 8)
(10-pin COM2: see p.12, No. 9)
(10-pin COM3: see p.12, No. 10)
(10-pin COM4: see p.12, No. 11)
1
2
PIN
Signal
Name
PIN Signal
Name PIN
Signal
Name PIN
Signal
Name
PIN Signal
Name
10
N/A
8
CCTS#
6
DDSR#
4
DDTR#
2
RRXD
9
+5V
7
RRTS#
5
GND
3
TTXD
1
DDCD#
This motherboard supports RS232/422/485 on COM1, 2 ports. Please refer to below
table for the pin definition. In addition, COM1, 2 ports (RS232/422/485) can be
adjusted in BIOS setup utility > Advanced Screen > Super IO Configuration. You
may refer to page 36 for details.
COM1, 2 Port Pin Definition
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
NC
NC
NC
System Panel Header
This header accommodates
(9-pin PANEL1)
several system front panel
(see p.12, No. 12)
functions.
GND
RESET#
PWRBTN#
PLED-
PLED+
GND
HDLED-
HDLED+
1
GND
