Supermicro SuperServer SYS-E302-12A-4C User Manual page 39

Unit Identifier Switch/UID LED Indicator
A Unit Identifier (UID) switch and an LED Indicator are located on the motherboard. The UID
switch is located at JUIDB1 on the back panel. The UID LED (UIDLED1) is located next to
the UID switch. When you press the UID switch, the UID LED will be turned on. Press the
UID switch again to turn off the LED indicator. The UID Indicator provides easy identification
of a system unit that may be in need of service.
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
support/manuals/.
UID Switch
Pin Definitions
Pin# Definition
1 Ground
2 Ground
3 Button In
4 Button In
Chapter 4 Motherboard Connections
https://www.supermicro.com/
UID LED
Pin Definitions
Color
Blue: On
39
Status
Unit Identified