2-18
X10DRT-PS Motherboard User’s Manual
Unit Identifier Switch
Two Unit Identifier (UID) switches and two
UID LED indicators are located on your
system. The rear UID switch (SW1) is lo-
cated on the I/O backpanel, and the rear
LED Indicator is located at UID_LED1 on
the motherboard. The front UID switch and
the front UID LED are located on the front
side of the chassis. When the user presses
the front UID switch or the rear UID switch,
both UID LED Indicators will be turned on.
Press the UID switch again to turn off the
UID LED. The UID Indication provides easy
identification of a system unit that may be in
need of service. Please refer to Page 2-29
for more information on the rear UID LED.
See the tables on the right for pin definitions.
UID Switch
Pin# Definition
G1, G2
Ground
Pins 1-2
Button in
UID Switches & LEDs
Description
Location
Rear Switch
SW1 (on the I/O
backpanel)
Rear UID LED
UID_LED1
1. Rear UID Switch
2. Rear UID LED
3. Front UID Switch
4. Front UID LED
1
X10DRT-PS
REV:1.00
1 2
3
4
JF1
UID LED
Status
Color/State Status
Blue: On or Blinking
Unit Identified
