IPC/RSL8xxx-XxxxE: user documentation
DOC/IPC_RSL8-E; V1.9
© Syslogic Datentechnik AG, Switzerland, http://www.syslogic.com
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3.3.6.
Serial Ports
Up to four serial ports are available with standard RS232 signals. Two of them are available on
standard DSUB-9 connectors on the front (COM1, COM2), the others are available on internal
headers (COM3, COM4).
The serial ports have fixed base addresses of 3F8H for COM1, 2F8H for COM2, 3E8H for
COM3 and 2E8H for COM4.
COM1 uses hardware interrupt 4, COM2 uses hardware interrupt 3, COM3 uses hardware
interrupt 10 and COM4 uses hardware interrupt 5. Interrupt configuration may be changed in
CMOS setup SIO configuration.
Device Connection RS232 (COM1/COM2)
The Serial Port COM1 is available on DSUB-9 connector P14.
The Serial Port COM2 is available on DSUB-9 connector P15.
Pin Number
Signal
Pin Number
Signal
1
DCD*
6
DSR*
2
RXD
7
RTS*
3
TXD
8
CTS*
4
DTR*
9
RI*
5
GND
Tab. 17 Serial Ports COM1-2 on DSUB-9 male P14, P15 (9 pin)
Device Connection RS232 (COM3/COM4, optional)
The Serial Port COM3 is available on the internal header P43.
The Serial Port COM4 is available on the internal header P44.
Mating connector type for P21, P26, P22, P23: Housing Harwin DataMate M80-8880805,
Crimp contacts included (M80-0130005). Recommended wire type: BS3G210 type A, PTFE
insulated, 24-28AWG, max insulation diameter 1.10mm.
Pin Number
Signal
Pin Number
Signal
1
DCD*
2
DSR*
3
RXD
4
RTS*
5
TXD
6
CTS*
7
DTR*
8
RI*
9
GND
10
+5V (not fused)
Tab. 18 Serial Ports COM3-4 internal Headers P43-44 (2x5 pin)
