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SBC82810 Pentium
®
M All-in-One Half-Size Board User’s Manual
Hardware Description
28
3.17.2 CN1: IrDA Connector Pin Assignment
Pin Description
1
VCC
2
HIRRX
3
IRRX
4
GND
5
IRTX
3.17.3 CN20: Standalone Power Connector Pin
Assignment
Pin Description
1
+5V
2
GND
3
+12V
4
SB5V
5
GND
6
+5V
6 5 4 3 2 1
3.17.4 CN4: Flat Panel Bezel Connector
Power LED
This 3-pin connector, designated at
Pins 1
and
5
of
CN4
,
connects the system power LED indicator to its respective
switch on the case.
Pin 1
is +, and
pin 5
is assigned as -. The
Power LED lights up when the system is powered ON.
External Speaker and Internal Buzzer Connector
Pins 2, 4, 6,
and
8 of CN4
connect to the case-mounted
speaker unit or internal buzzer.
Short pins 4-6
when
connecting the CPU card to an internal buzzer. When