User`s guide

Installing the PCLTA-21 Card

Troubleshooting

As a plug-and-play device, the PCLTA-21 card should operate as desired

following completion of the installation process. If the card does not

function correctly, the most likely causes are system resource constraints or

software incompatibilities. These problems are described in detail in the

following sections.

Installing the PCLTA-21 Card before Software Installation

The following section applies to Windows 98 only.

If the PCLTA-21 card was inserted into the PC prior to PCLTA-21 software

installation, the Windows operating system will be unable to associate a

device driver with the card. When Windows 98 starts up, a New Hardware

Found window will appear. Click the Cancel button, then install the

PCLTA-21 software as described above.

If the option “Do not install a driver (Windows will not prompt you again)”

was inadvertently selected, the operating system will mark the PCLTA-21

card as an unknown device. As a result, the card will not function even if

the PCLTA-21 software is installed. To correct this problem, remove the

device using the following steps:

1. Open the System icon in the Windows Control Panel and select the

Device Manager tab.

2. Double-click the Other Devices icon.

3. Select the PCLTA-21 device and click the Remove button.

4. Install the PCLTA-21 software and reboot the PC.

System Resources

Each PCLTA-21 card requires sixteen contiguous bytes of I/O address space

starting on a modulo-4 based address, i.e., an address evenly divisible by 4.

Solving IRQ and I/O Conflicts under Windows 98

I/O resource problems are rare under Windows 98 for the PCLTA-21 card

since the card can handle a wide range of I/O settings. The Windows 98

operating system handles most allocations of IRQs, but there are some

instances where the operating system cannot properly allocate interrupt

requests.

IRQ usage in the system can be determined by opening the System icon in

the Windows Control Panel. The Device Manager tab allows viewing of

devices by type or connection.