ELSKY EM218, User Manual, Page: 12 / 33

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2.10 Power supply and switch pin definition:
The motherboard provides a standard 5.5*2.5mm DC port (DC_JACK1),1*4PIN ATX power supply interface.
4PIN ATX definition:
Position symbol: DC_PWR1 (2*2Pin)
pin position symbol drawing
pin definition
1 GND
2 GND
3 +12V
4 +12V
Switch pin definition:
Position symbol: F_PANEL1 (2*5Pin,2.54mm)
pin position symbol drawing
pin definition pin definition
1 HDLED+
Hard disk LED
2
Power supply LED
3 HDLED- 4 GND
5 RST
Restart
6 P_SW IN
Switch
7 GND 8 GND
9 GND 10 NC
(1)Hard disk indicator light:
The 1st and 3rd pins are HDDLED. The 1st pin is the positive side of the LED.When the hard disk is being read or
written,the indicator light will flash, indicating that the hard disk is running.
(2)Power supply indicator light:
The 2nd and 4th pins are Power LED. The 2nd pin is the positive side of the LED.When the motherboard is powered
on,the power indicator light is on.When the motherboard is powered off, the power indicator light is off.
(3)Restart button:
The 5th,7th pins are Restart Buttons.When the system fails and cannot continue to work, the restart can restart the
system.
(4)Power supply switch control:
The 6th, 8th pins are power supply buttons.Using these two pins to connect to the bounce switch on the front panel of
the chassis to turn on or off the computer.
2.11 PS/2 pin definition:
Position symbol: PS/2 (1*7Pin,2.0mm) pin position symbol drawing
pin definition
1 K_SATA
2 K_CLK
3 GND
4 M_DATA
5 M_CLK
6 GND
7 +5V