Shuttle Spacewalker MS50, User Manual

Page: 19 / 83

- 17 -
Step 6
Connect Front Panel Switches/LEDs/Speaker/USB
You can find there are several different cables already existing in the system
case and originating from the computer’s front-panel devices (HDD LED,
Power LED, Reset Switch, PC Speaker, or USB devices etc.) These cables
serve to connect the front-panel switches, LEDs, and USB connectors to the
mainboard’s front-panel connectors group ( JP4 and JP18), as shown below.
1. ATX Soft Power On/Off (PWON)
2. System Management Interface Button (EPMI)
3. HDD-LED (HLED)
4. Green-LED and Power-LED (GLED/PLED)
5. Power LED (PLED)
6. Hardware Reset Switch Button (RST)
7. PC Speaker (SPEAKER)
8. Extended USB Header
1
- +
- + + -
- +
SPEA KER EPM I RST HLED
G LED/PLED PLED
PWO N
1
2
7
5 4
6 3
1
JP1 8
GL ED/PLED
H LED
+
+ -
+
- +
-
-
EPMI R ST SPEAKER
PW ON PLED
1
U S B 3 & 4
JP4
N/
A
GN
D
US
B
D
1+
US
B
D
1-
+5
V
KE
Y
GN
D
US
B
D
0+
US
B
D
0-
+5
V
1
USB port 3
USB port 4
8