Appendix A - Troubleshooting
OMG-ULTRA-485-PCI
Page
9
Appendix A - Troubleshooting
Software is supplied with the
OMG-ULTRA-485-PCI
adapter and may be used in the troubleshooting procedures.
Using this software and following these simple steps can eliminate most common problems without the need to call
Technical Support.
1.
Identify all I/O adapters currently installed in your system. This includes your on-board serial ports, controller
cards, sound cards etc. The I/O addresses used by these adapters, as well as the IRQ (if any) should be
identified.
2.
Configure your
OMG-ULTRA-485-PCI
adapter so that there is no conflict with currently installed adapters.
No two adapters can occupy the same I/O address.
3.
Make sure the
OMG-ULTRA-485-PCI
adapter is using a unique IRQ. While the adapter does allow the
sharing of IRQs, many other adapters (i.e. SCSI adapters & on-board serial ports) do not. The IRQ is typically
selected by the BIOS or Operating system. Some BIOS setup software will allow changing the IRQ, but others
do not. Another method of changing assigned resources is to try changing PCI slots. This will typically cause
the BIOS or OS to reassign the resources.
4.
Make sure the
OMG-ULTRA-485-PCI
adapter is securely installed in a motherboard slot.
5.
When running DOS or Windows 3.x refer to the supplied software and this User Manual to verify that the
adapter is configured correctly. This software contains a diagnostic program ‘SSD’
(D:\software\seacom\Other\DOS\DIAG, where D: = the driver letter of your CDROM drive) will verify if an
adapter is configured properly. This diagnostic program is written with the user in mind and is easy to use. You
can use D:\software\seacom\Other\DOS\PCI\FindPCI.exe to determine resources that have been assigned to
your adapter. Make sure that if available, the ‘Use Plug-n-Play” option is turned
‘OFF’
in your BIOS. Having
this option set to
‘ON
’ in DOS or Windows 3.x will cause erratic operations.
6.
For Windows95/98/ME/NT/2000, the diagnostic tool ‘WinSSD’ is installed in the SeaCOM folder on the Start
Menu during the setup process. First find the ports using the Device Manager, then use ‘WinSSD’ to verify that
the ports are functional.
7.
Remember that a loopback test is not possible with the ‘NE’ switch turned on.
8.
Always use the diagnostic software when troubleshooting a problem. This will eliminate any software issues
from the equation.
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