FWA5104 Series User
’s Manual
JP7: System Function Connector
JP12 provides connectors for system indicators that provide light indication of the computer activities and switches
to change the computer status. JP7 is an 8-pin header that provides interfaces for the following functions
Power LED: Pin 1,2
The power LED indicates the status of the main power switch.
Pin #
Signal Name
1
+5V
2
GND
ATX Power ON Switch: Pin 3,4
This 2-
pin connector is an “ATX Power Supply On/Off Switch” on the system that connects to the power switch
on the case. When pressed, the power switch will force the system to power on. When pressed again, it will
force the system to power off.
Pin #
Signal Name
3
Power_ON
4
GND
Hard Disk Drive LED Connector: Pin 5, 6
This connector connects to the hard drive activity LED on control panel. This LED will flash when the HDD is
being accessed.
Pin #
Signal Name
5
+3.3V
6
-HDD_LED
Reset Switch: Pin 7, 8
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.
Pin #
Signal Name
7
PM_SYSRST#
8
GND
CPU_FAN1: System Fan Power Connector
FAN1 is a 3-pin header for system fans. The fan must be 12V (Max. 1A).
Pin #
Signal Name
1
Ground
2
+12V
3
Rotation control
LED6: Status LED
A1 & C1 : Status LED
A2 & C2 : Bypass LED
A3 & C3 : Power LED
S I G N A L
N A M E
Pin #
Pin #
Signal Name
SIO_GP27
A1
C1
SIO_GP26
ALARM_R
A2
C2
SIO_GP25
PWR_R
A3
C3
GND
Remark: It is controlled by Logical Device 7, Index port is 0x2E, Data port is 0x2F, GPIO24-27 Data Register: 0xE9 BIT4-7
CN11: DC power Jack (+12V only)
Remarks:
CN11 and J6 cannot be connected at the same time.
