AXIOMTEK SBC8241 User Manual page 40

SBC8241 486 All-in-One Half-size User's Manual
Speaker : CN12
CPU Fan Power Pin Assignment: CN15
RS-232 Connector: COM1
Pin
DCD
1
2 RX
TX
3
4 DTR
5 GND
RS-232/422/485 Connector: COM2
Pin
1
2
3
4
5
6
7
8
9
8(
Pin Description
1 +5V
N.C.
2
3 Internal buzzer
4 External speaker (Remove 3-4)
Pin Description
+12V
1
2 GND
3 GND
+5V
4
Description Pin
6
7
8
9
RS232 RS422
DCD TX-
RX TX+
TX RX+
DTR RX-
GND GND
DSR
RTS
CTS
RI
Description
DSR
RTS
CTS
RI
RS485
DATA-
DATA+
Pin Assignments