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Chapter 3: Motherboard Connections
LAN Ports
The motherboard has 13 LAN ports. LAN1~LAN9 are 1G ports, LAN10 and LAN11 are 10G
ports, LAN12 and LAN13 are 10G SFP+ ports. In addition to the LAN ports, the motherboard
offers a dedicated IPMI LAN port. Refer to the table below for the pin definitions.
Caution:
If the operating temperature exceeds 30ºC and the system fans are not active, a LAN
component may become overheated.
LAN Port
Pin Definition
Pin#
Definition
Pin#
Definition
1
TX_D1+
5
BI_D3-
2
TX_D1-
6
RX_D2-
3
RX_D2+
7
BI_D4+
4
BI_D3+
8
BI_D4-
COM Port/Header
The motherboard has one COM port on the I/O front panel and one COM header on the
motherboard to provide serial connections.
COM Port
Pin Definitions
Pin#
Definition
Pin#
Definition
1
SP_DCDA
2
SP_DSRA
3
SP_RXDA
4
SP_RTSA
5
SP_TXDA
6
SP_STSA
7
SP_DTRA
8
SP_RIA
9
GND
10
NC
RJ45 Port
Pin Definitions
Pin#
Definition
Pin#
Definition
1
RTS
6
RXD
2
DTR
7
DSR
3
TXD
8
CTS
4
GND
5
GND
