Advantech PCM-9574, User Manual

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Chapter 2 Installation 23
2.17.1 COM2 RS-232/422/485 setting (J10)
COM2 can be configured to operate in RS-232, RS-422, or RS-485
mode. This is done via J10.
Table 2-6: COM2 RS-232/422/485 setting (J10)
* RS-232 RS-422 RS-485
J10
* default setting
The IRQ and the address range for COM1, 2, 3, 4 are fixed. However,
if you wish to disable the port or change these parameters later you
can do this in the system BIOS setup. The table below shows the
settings for the PCM-9574’s serial ports.
Table 2-7: Serial port default settings
Port Address range Interrupt
COM1 3F8 ~ 3FF IRQ4
COM2 2F8 ~ 2FF IRQ3
COM3 3E8 ~ 3EF IRQ10
COM4 2E8 ~ 2EF IRQ5
2.17.2 COM3/COM4 RI pin setting (J6)
COM1 through COM4 can 5 V or +12 V power to the serial
devices via the RI pin of the COM port connector. The outputs of the
COM1 ~ COM4 RI pins are selected by setting J6.
2
5
1
6
9 10
13 14
17 18
2
5
1
6
9 10
13 14
17 18
2
5
1
6
9 10
13 14
17 18