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Chapter 4: Motherboard Connections
4.3 Ports
Rear I/O Ports
See the figure below for the locations and descriptions of the various I/O ports on the rear
of the motherboard.
Rear I/O Ports
No. Description
No. Description
1.
COM1 Port
6.
SFP28 Port 0 Link/Activity LED (LED_L0)
2.
USB2 (3.0)
7.
SFP28 Port 0 (JSFP0)
3.
USB3 (3.0)
8.
SFP28 Port 1 (JSFP1)
4.
VGA Port
9.
SFP28 Port 1 Link/Activity LED (LED_L1)
5.
Dedicated IPMI LAN Port
10
UID Switch (JUIDB1)
9
8
7
6
1
5
4
3
2
10
VGA Port
One VGA port is located next to IPMI LAN port on the I/O back panel. Use this connection
for VGA display.
COM Port
Pin Definitions
Pin#
Definition
1
Ground
2
NC
3
USB_P
4
USB_N
5
+5V
Serial Port
There is one COM port (COM1) on the I/O back panel. The COM port provides serial
communication support (micro USB to COM). Refer to the table below for pin definitions.
