User manual

17 AIMB-580 User Manual
Chapter 2 Connecting Peripherals
2.5 Serial Ports (COM3/ COM4)
COM2
COM3/COM4
AIMB-580 supports four serial ports, three RS-232, and one RS-232/422/485 COM3.
The user can use JSETCOM3 to select among RS-232/422/485 modes for COM3.
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-232/422/485 standards in different ways. If you
are having problems with a serial device, be sure to check the pin assignments for
the connector.