Serial Com2 - Com6 Ports (Cn11, Cn2, Cn3, Cn4 & Cn5); Table 36: Pin Assignment Com2 (Cn11); Table 37: Pin Assignment Com3, Com4 (Cn2, Cn3); Figure 25: Serial Com Com2 - Com6 - Kontron ATX-HSW-S User Manual

7.7. Serial COM2 - COM6 Ports (CN11, CN2, CN3, CN4 & CN5)
One RS232/422/485 COM port is supplied via the internal pin header CN11.
Four RS232 COM ports are supplied via the internal pin header CN2, CN3, CN4 & CN5.

Figure 25: Serial COM COM2 - COM6

Table 36: Pin Assignment COM2 (CN11)

Pin RS232 Signal
1 DCD
2 RXD
3 TDX
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9
RI / +5V / +12V*
10 Key
*: Pin configuration can be selected by Jumper JP14.

Table 37: Pin Assignment COM3, COM4 (CN2, CN3)

Pin RS232 Signal
1 DCD
2
RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI / +12V / +5V*
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1
9
RS422 Signal Half Duplex
RS485 Signal
TX- DATA-
TX+ DATA+
RX+ N/A
RX- N/A
GND GND
N/A N/A
N/A N/A
N/A N/A
RI / +5V / +12V* RI / +5V / +12V*
Key Key
ATX-HSW-S - User Guide, Rev. 1.1
2
Full Duplex Note
RS485 Signal
TX-
TX+
RX+
RX-
GND
N/A
N/A
N/A
RI / +5V / +12V*
Key
Note
// 47