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1.4 I/O Panel
1
DisplayPort (DP0)
2
DisplayPort (DP2)
3
Serial Port (COM3)*
4
LAN RJ-45 Port (LAN1)**
5
LAN RJ-45 Port (LAN2)**
6
Front Speaker (Lime)
7
Microphone (Pink)
* 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 31 for details.
PIN
1
2
3
4
5
6
7
8
9
** There are two LED next to the LAN port. Please refer to the table below for the LAN port LED
indications.
LAN Port LED Indications
Activity/Link LED
Status
Description
Off No Link Off 10Mbps connection
Blinking Data Activity
On
Link
COM3 Port Pin Definition
RS232
DCD, Data Carrier Detect
RXD, Receive Data
TXD, Transmit Data
DTR, Data Terminal Ready
GND
DSR, Data Set Ready
RTS, Request To Send
CTS, Clear To Send
N/A
SPEED LED
Status
Yellow
Green
8
USB 2.0 Ports (USB2H_2_3)
9
USB 3.2 Gen1 Ports (USB3_1_2)
10 Serial Port (COM4)*
11 DisplayPort (DP3)
12 DisplayPort (DP1)
13 DC Jack (DC_JACK1)***
RS422
TX-
RX+
TX+
RX-
GND
N/A
N/A
N/A
N/A
Description
100Mbps connection
1Gbps connection
9
RS485
RTX-
N/A
RTX+
N/A
GND
N/A
N/A
N/A
N/A
ACT/LINK
SPEED
LED
LED
LAN Port
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