B&R Industries Automation PC 620, User Manual

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Technical data • Entire device
Chapter 2
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69 Automation PC 620 User's Manual V 1.90
2.9.1 Serial interfaces COM1
I/O address and IRQ
The setting for the I/O address and the IRQ can be changed in the BIOS setup (under
"Advanced" - submenu "I/O Device Configuration" setting "Serial port A"). Please note any
potential conflicts with other resources when changing this setting.
Serial interfaces COM1
Type RS232, modem-capable, not
electrically isolated
9-pin DSUB male
UART 16550 compatible, 16 byte
FIFO
Transfer rate Max. 115 kBaud
Bus length Max. 15 meters
Pin Assignment
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
Table 22: Pin assignments - COM1
Resource Default setting Additional setting options
I/O address 3F8 2F8, 3E8, 2E8
IRQ IRQ4 IRQ3
Table 23: COM1 - I/O address and IRQ