IBM 2193, 6345, 2194 manual Serial port addresses

Serial port addresses

IBM computers have a built-in external serial port already installed in the computer. The connector for this port is located at the back of your computer. This port can be used to connect a serial mouse, serial printer, or other serial device and to transfer data between computers.

The built-in serial port supports the following addresses and interrupts.

Table 6: Serial port addresses

Address	COM#	Interrupt	Default
2F8	COM2	IRQ 3	Serial port

Conflicts may arise if you add adapter cards with serial ports or if you change the address settings on your modem if you are using an operating system other than Windows 98. You can resolve most of these conflicts by using Setup or the Windows 98 Device Manager to change serial port addresses. See “Serial Port Setup” on page 6-9 or “Resolving resource conflicts” on page 7-4 for more information.

A-8IBM Personal Computer User Guide