AAEON AEC-6915 Rev.B - Manual (Page 26)

E m b e d d e d C o n t r o l l e r A E C - 6 9 1 5 R e v . B
Chapter 2 Hardware Installation 2 - 8
2.9 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
Æ
Super IO device
Æ
COM2 select". (Default setting is at "RS-232")
2.10 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.
Pin Signal Pin Signal
1 DCD (422TXD-/485DATA-) 2 RXD (422RXD+)
3 TXD (422TXD+/485DATA+) 4 DTR (422RXD-)
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 N.C.