You are now ready to change the BIOS settings to enable IrDA communication.


Note: These installation instructions are for Award Modular BIOS but other BIOS are similar.

    1. Power on your PC.
    2. Enter BIOS's CMOS Set-Up Utility by pressing the DEL key on the numeric keypad.
    3. To enable the IrDA port, first select Integrated Peripherals from the Main Menu.
    1. Change the UART mode selectionof the second serial port to IrDA(it could also be listed as HPSIR). Do not select ASKIR if it is present (this is a different standard and will not work correctly with IrDA).
        NOTE: Some motherboards have a dedicated IrDA port that is not multiplexed with the second serial port.  Should that be the case, all you need to do is to enable the IrDA port.
    1. If your BIOS has a Duplex Mode selection, select the Half Duplex option.
    1. Some motherboards allow signal active polarity selection.  Should that be the case, leave them to be
                                         TX active High
                                         RX active Low.

      Note: A small percentage of motherboards available today have these polarities in reverse, namely, TX active Low and RX active High.   If the Infrared Drive's transmit LED is visually on all the time, then your current polarity selection definitely needs to be reversed.

    1. Some motherboards offer an option called IrDA Signal Delay.  If your motherboard has this option, it needs to be set at "no delay".



      Reminder on IRQ & COM port conflict:

       Modem, network card, and some other add-on cards also occupy COM ports and IRQ's. Before exiting out of the CMOS setup and proceeding to the next step, you need to make sure that there is no device, including your on-board serial ports and IrDA port, on the system that has the same COM port or same IRQ assignment.  It is recommended to set device on PnP (plug-and-play) mode so that Windows can avoid conflict for you by taking over the port  and IRQ assignment task.

      Copyright © 2003 J.D.Research, Inc All rights reserved.      Last Update : 6/5/2002