User Manual

Embedded Controller AEC-6920

Chapter 2 Hardware Installation

2 - 7

5-6 RI for COM1 (Default)

JP4 Function

1-2 +12V

3-4 +5V

5-6 RI for COM3 (Default)

JP5 Function

1-2 +12V

3-4 +5V

5-6 RI for COM4 (Default)

2.8 COM2 RS-232/422/485 Selection

COM2 RS-232/422/485 selection for AAEON BOXER S series is

set in BIOS setting as following:

Entering BIOS Setting Menu: Choose "Integrated Peripherals

Super IO device

COM2 select". (Default setting is at "RS-232")

2.9 COM2 RS-232/422/485 Serial Port Connector

Different devices implement the RS-232/422/485 standard in

different ways. If you have problems with a serial device, check

the pin assignments below for the connector.