Pin Signal Name
1
2
3
4
Link LED
VCC
Ground
10/100 Mbps mode LED
The FPI Connector
This panel connector provides a set of switch and LED connectors found on
ATX case. Refer to the table below for information.
FP1
Pin Signal Name Function
1 HD_LED_P Hard disk LED (positive)
2 FP PWR/SLP MSG LED [dual color or single color (+)]
3 HD_LED_N Hard disk active LED (negative)
4 FP PWR/SLP MSG LED [dual color or single color (-)]
5 RST_SW_N Reset Switch
6 PWR_SW_P Power Switch
7 RST_SW_P Reset Switch
8 PWR_SW_N Power Switch
9 RSVD Reserved
10 NC No pin
Hard Drive Activity LED
Connecting pins 1 and 3 to a front panel mounted LED provides visual indica-
tion that data is being read from or written to the hard drive. For the LED to
function properly, an IDE drive should be connected to the onboard IDE inter-
face. The LED will also show activity for devices connected to the SCSI (hard
drive activity LED) connector.
Power / Sleep / Message Waiting LED
Connecting pins 2 and 4 to a single- or dual-color, front panel mounted LED
provides power on/off, sleep, and message waiting indication.
Reset Switch
Supporting the reset function requires connecting pins 5 and 7 to a momen-
tary-contact switch that is normally open. When the switch is closed, the board
resets and runs POST.
Power Switch
Supporting the power on/off function requires connecting pins 6 and 8 to a
momentary-contact switch that is normally open. The switch should maintain
contact for at least 50 ms to signal the power supply to switch on or off. The
time requirement is due to internal debounce circuitry. After receiving a power
on/off signal, at least two seconds elapses before the power supply recog-
nizes another on/off signal.
9
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