Aaeon SBC-551 Manual - page 43
Chapter 2 Installation 35
Reserved IR connector (CN8)
The onboard IR connector supports an Infrared port module that
enables wireless communication between the computer and other
computers and devices with infrared capability. The port module is
an optional component. If it is installed, you must set the IR
Transfer Mode in the Peripherals section of the CMOS setup utility.
Ir Connector
Pin
Function
1
VCC
2
FIR_RX (High Frequency)
3
IR_RX
(Low Frequency)
4
GND
5
IR_TX
Power connector (CN9)
In single board computer without passive backplane applications,
you need to connect power directly to the SBC-551/552. This
connector is fully compatible with the standard PC power supply
connector. See the following table for its pin assignments:
Power connector (CN9)
Pin
Signal
1
+12V
2
GND
3
GND
4
+5V