Com2 Rs-232/422/485 Setting (J9) (Optional); Com1 - Com4 Ri Pin Setting (J7); Table 2-6: Com2 Rs-232/422/485 Setting (J9); Table 2-7: Serial Port Default Settings - Advantech PCM-9576F User Manual

2.17.1 COM2 RS-232/422/485 setting (J9) (optional)

COM2 can be configured to operate in RS-232, RS-422, or RS-485
mode. This optional function is done via J9.

Table 2-6: COM2 RS-232/422/485 setting (J9)

* RS-232
J9
18
14
10
6
2
* 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-9576F's serial ports.

Table 2-7: Serial port default settings

Port Address range
COM1 3F8 ~ 3FF
COM2 2F8 ~ 2FF
COM3 3E8 ~ 3EF
COM4 2E8 ~ 2EF

2.17.2 COM1 - COM4 RI pin setting (J7)

COM1 through COM4 can supply +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 J7.
RS-422
17 18
13 14
9 10
5 6
1 2
Interrupt
IRQ4
IRQ3
IRQ10
IRQ5
RS-485
17 18
13 14
9 10
5 6
1 2
Chapter 2 Installation
17
13
9
5
1
2 3