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COM2, 3 Headers
(9-pin COM2/COM3: see p.8, No. 2)
* This motherboard supports RS232/422/485 on COM3 port. Please
refer to below table for the pin definition. In addition, COM3 port
(RS232/422/485) can be adjusted in BIOS setup utility > Advanced
Screen > Super IO Configuration. You may refer to page 29 for details.
PIN
LPC Header
(19-pin LPC1)
(
see p.8, No. 23)
DC-in PWR Connector (Input +9V~+24V) &
UPS Module Power Output Connector
(4-pin FROM_UPS1: see p.8, No. 1)
Signal
PIN
PIN
Name
10
NC
8
9
RRI#
7
COM3 Port Pin Definition
RS232
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
10
NC
1
2
1
Signal
Signal
PIN
PIN
Name
Name
CCTS#
6
DDSR#
RRTS#
5
GND
RS422
TX-
RX+
TX+
RX-
GND
N/A
N/A
N/A
N/A
NC
This connector supports a
Trusted Platform Module (TPM)
system, which can
securely store keys, digital
certificates, passwords, and
data. A TPM system also helps
enhance network security,
protects digital identities, and
ensures platform integrity.
Pin1 and Pin4: GND
Pin2 and Pin3: DC Input
1
20
Signal
Signal
PIN
Name
Name
4
DDTR#
2
RRXD
3
TTXD
1
DDCD#
RS485
RTX-
N/A
RTX+
N/A
GND
N/A
N/A
N/A
N/A
NC
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