Jumpers and Connectors
•
15
2.1.11 CN13 : General Purpose System Signals
Pin #
ATX Power Interface Signals
6 GND
7 X
8 PS_ON
9
5V SB (s5V)
10 N.C
•
Power LED: Pins 1 - 3
The power LED indicates the status of the main power switch.
•
ATX Power Interface: Pins 6 -10
The +5V standby power input from pin #9 and #10. The PS_ON#
signal is connected to the ATX power supply to control the power
On/Off.
•
Speaker: Pins 11 - 14
This connector provides an interface to a speaker for audio tone
generation. An 8-ohm speaker is recommended.
•
Reset Switch: Pins 15 and 16
The reset switch allows the user to reset the system without turning
the main power switch off and then on again. Orientation is not
required when making a connection to this header.
•
Hard Disk LED Connector: Pins 17 and 18
This connector connects to the hard drive activity LED on control
panel. This LED will flash when the HDD is being accessed.
•
ATX Power ON Switch: Pins19 and 20
Power
LED
+
+
+
1
Speaker
Reset
HDD
LED
Power
Switch
N.C
ATX Power
10
20
11
