Advantech AIMB-230, User Manual

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AIMB-230 User Manual 16
2.4 Serial Ports (COM1~COM2)
AIMB-230 supports two serial ports, and COM1 support RS232/485/422 function and
5V/12V select by jumper,RS-485 without H/W auto flow control function.
These ports can connect to serial devices, such as a mouse or a printer, or to a com-
munications network.
The IRQ and address ranges for both ports are fixed. However, if you want to disable
the port or change these parameters later, you can do this in the system BIOS setup.
Different devices implement the RS-232 standards in different ways. If you have
problems with a serial device, be sure to check the pin assignments for the connec-
tor.
Serial Ports Voltage Select
JCOM1: 1-2 5V
3-4* 0V
5-6 12V
COM1/COM2