Connection (Com1: Cn12); Rs-232/422/485 Connection; (Com2: Cn10: Rs-232; Cn11: Rs-422/485); Table 2-3: Serial Port Default Settings - Advantech PCA-6753F User Manual

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2.15.1 RS-232 connection (COM1: CN12)

Different devices implement the RS-232 standard in different ways. If

you are having problems with a serial device, be sure to check the pin

assignments for the connector.

COM2 is an RS-232/422/485 serial port. The specific port type is

determined by jumper settings (JP6), as detailed in Chapter 1.

The IRQ and address range for both ports 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 PCA-6753F Series' board's ports:

Port

COM1

COM2

PCA-6753F User's Manual

Address

3F8, 3E8

2F8, 2E8

Interrupt

IRQ4

IRQ3

Default

3F8

2F8

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