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Chapter 4: Motherboard Connections
VGA Port
There is one VGA port on the IO back panel. Connect to this port for the VGA display.
COM Connector (JCOM1/2)
Pin Definitions
Pin#
Definition
Pin#
Definition
1
DCD
6
DSR
2
RXD
7
RTS
3
TXD
8
CTS
4
DTR
9
RI
5
Ground
10
N/A
Serial Port
There are two COM connectors (JCOM1/JCOM2) near the I/O back panel, next to the IPMI
LAN connector. These COM connectors provide serial communication support. See the table
below for pin definitions.
Universal Serial Bus (USB) Ports
There are two USB 3.0 ports (USB12/14) on the I/O back panel located at JUSB1.
Back Panel USB 12/13 (3.0)
Pin Definitions
Pin#
Definition
Pin#
Definition
A1
VBUS
B1
Power
A2
D-
B2
USB_N
A3
D+
B3
USB_P
A4
GND
B4
GND
A5
Stda_SSRX-
B5
USB3_RN
A6
St
B6
USB3_RP
A7
GND
B7
GND
A8
Stda_SSTX-
B8
USB3_TN
A9
St
B9
USB3_TP
Ethernet Ports
An IPMI-dedicated LAN that supports GbE LAN is located on the backplane. All Ethernet ports
accept RJ45 type cables. Please refer to the LED Indicator Section for LAN LED information.
LAN Ports
Two 10G LAN ports (JLAN1, JLAN2) are located on the I/O back panel. These ports accept
RJ45 type cables.