Supermicro SuperServer 2028R-TXR User Manual page 70

S S
UPER ERVER 2028R-TXR User's Manual
Unit Identifi er Switches & UID LED
Indicators
A rear unit identifi er switch (JUIDB1) is lo-
cated next to the VGA port on the IO back
panel, and a front UID switch is located
on pin 13 on the front control panel (JF1).
The rear UID LED (LED1) is located next
to the rear UID switch, and the front UID
LED is located on pins 7 on JF1. When
you press the front UID switch or the rear
UID switch, both front and rear UID LED
indicators will be turned on. Press the UID
switch again to turn off the LEDs. The
UID Indicators provide easy identifi cation
of a system unit that may be in need of
service. Refer to the layout below for the
locations of the front control panel and the
I/O back panel.
Note: UID can also be triggered via
IPMI on the motherboard. For more
information on IPMI, please refer to
the IPMI User's Guide posted on our
website at http://www.supermicro.
com.
Pin#
1
2
3
4
Color/State Status
Blue: On
Ground
X
FP PWRLED
HDD LED
NIC1 Link LED
NIC2 Link LED
OH/Fan Fail/
PWR Fail LED)
Power Fail LED
Ground
Ground
Front Control Panel (JF1)
5-22
UID Button
Defi nition
Ground
Ground
Button In
Button In
UID LED
Status
Unit Identifi ed
20 19
NMI
X
3.3 V
UID Switch
NIC1 Activity LED
NIC2 Activity LED
UID LED
3.3V
Reset
Reset Button
Power Button
PWR
2 1