B&R Industries Automation PC 620, User Manual

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Technical data • Entire device
Automation PC 620 User's Manual V 1.90
2.9.2 Serial interfaces COM2
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 B"). Please note any
potential conflicts with other resources when changing this setting.
Serial interfaces COM2
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 24: Pin assignments - COM2
Resource Default setting Additional setting options
I/O address 2F8 3F8, 3E8, 2E8
IRQ IRQ3 IRQ4
Table 25: COM2 - I/O address and IRQ