User Manual

2-11
Chapter 2: Motherboard information
2.6 Connectors
2.6.1 Rear panel connectors
1 2
COM1 COM3
COM2
43
876 3
5
9
2
1. DC power connector. Insert the power adapter into this port.
V+ V+
GND GND
1 2
3 4
DC in Pin define
2. Serial ports (COM 1~3). These ports connect modems or other devices that
conform with serial specication.
1
2
3
4
6
7
8
9
5
RS232 RS422
GND
DTR
TXD
RXD
DCD
RI/5V/12V
CTS
RTS
DSR
1
2
3
4
6
7
8
9
5
GND
R(B)
R(A)
T(A)
T(B)
NC/5V/12V
NC
NC
NC
RS485
1
2
3
4
6
7
8
9
5
GND
NC
NC
R(A)/T(A)
R(B)/T(B)
NC/5V/12V
NC
NC
NC
COM1
NOTE: COM1 supports RS232, RS422 and RS485 while COM2 & COM3 are
RS232. You can select among RS232, RS422 or RS485 mode, and select the
RI voltage among Ring, 5V or 12V from BIOS settings for COM1 port.
3. USB 3.2 Gen 1 (up to 5Gbps) ports. These 9-pin Universal Serial Bus
(USB) ports are for USB 3.2 Gen 1 devices.
4. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area
Network (LAN) through a network hub.
LAN port LED indications
LAN port
Speed
LED
Activity Link
LED
Activity/Link LED Speed LED
Status Description Status Description
Off No link OFF 10Mbps connection
Orange Linked ORANGE 100Mbps connection
Orange (Blinking) Data activity GREEN 1Gbps connection
Orange (Blinking
then steady)
Ready to wake
up from S5 mode