User Guide

Hardware Setup 2-7
2.3.4. Front Panel Switches & Indicators Connection Headers
(FPIO1)
This header is used for connecting switches and LED indicators on the chassis front
panel.
Watch the power LED pin position and orientation. The mark “+” align to the pin in
the figure below stands for positive polarity for the LED connection. Please pay
attention to connect these headers. A wrong orientation will only cause the LED not
lighting, but a wrong connection of the switches could cause system malfunction.
• HLED (Pin 1, 3): Connects to the HDD LED cable.
• RST (Pin 5, 7): Connects to the Reset Switch cable.
• SPKR (Pin 13, 15, 17, 19): Connects to the System Speaker cable.
• SLED (Pin 2, 4): Connects to the Suspend LED cable.
• PWR (Pin 6, 8): Connects to the Power Switch cable.
• C.O. (Pin 14, 16): Connects to Case Open (Intrusion) device.
• FLED (Pin 18, 20): Connects to the Fault LED cable.
User’s Manual