Supermicro 2027R-E1R24L User Manual page 71

S S S
UPER TORAGE
Universal Serial Bus (USB)
There are four Universal Serial Bus
ports (USB0/1/2/3) located on the
I/O panel. In addition, there is one
Type A port (USB6) and four head-
ers (USB4/5/8/9) located on the
serverboard. The headers can be
used to provide front side USB access
(cables not included). See the table on
the right for pin defi nitions.
SGPIO Headers
The SGPIO (Serial General Purpose
Input/Output) headers are used to
communicate with the enclosure
management chip on the backplane.
See the table on the right for pin
defi nitions.
DOM Power Connector
A power connector for SATA DOM
(Disk On Module) devices is located at
JSD1. Connect an appropriate cable
here to provide power support for your
Serial Link DOM devices.
Overheat LED/Fan Fail (JOH1)
The JOH1 header is used to connect
an LED to provide warning of chassis
overheating or fan failure. This LED
will blink to indicate a fan failure. Refer
to the tables on right for LED status
and pin defi nitions.
YSTEM 2027R-E1R24L User's Manual
Back Panel USB
(USB 0/1/2/3)
Pin#
1
2
3
4
5
USB Header (USB4/5/8/9/6)
Pin Defi nitions
USB4/6
Pin # Defi nition
1 +5V
2 PO-
3 PO+
4 Ground
5 N/A
SGPIO Header
Pin Defi nitions
Pin# Defi nition
1 NC
3 Ground
5 Load
7 Clock
NC = No Connection
Pin Defi nitions
Pin#
1
2
3
OH/Fan Fail LED
States
State Message
Solid Overheat
Blinking Fan Fail
5-22
Defi nitions
+5V
PO-
PO+
Ground
N/A
USB5/7
Pin # Defi nition
1 +5V
2 PO-
3 PO+
4 Ground
5 Key
Pin Defi nition
2 NC
4 DATA Out
6 Ground
8 NC
DOM PWR
Defi nition
+5V
Ground
Ground
Overheat LED
Pin Defi nitions
Pin# Defi nition
1 5vDC
2 OH Active