Front Panel Connector - ECS L4S5A3 Manual

Front Panel Connector

The front panel connector (PANEL1) provides a standard set of switch and
LED connectors commonly found on ATX or micro-ATX cases. Refer to the
table below for information:
Pin Signal Function
Hard disk LED
1 HD_LED_P
(positive)
Hard disk active LED
3
HD_LED_N
(negative)
5 RST_SW_N Reset Switch
7
RST_SW_P Reset Switch
9
RSVD Reserved
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.
PANEL1
Pin Signal
2 FP PWR/SLP
4
FP PWR/SLP
6 PWR_SW_P
8
PWR_SW_N
10
NC
12
Function
MSG LED [dual color
or single color (+)]
MSG LED [dual color
or single color (-)]
Power Switch
Power Switch
No pin