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© Sealevel Systems, Inc.
7105-DB9 Manual | SL9053 9/2021
Appendix A
–
Troubleshooting
Sealevel Software is supplied with the Sealevel Systems adapter and will be used in the troubleshooting
procedures. By using this software and following these simple steps, most common problems can be
eliminated 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 Sealevel Systems 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 Sealevel Systems adapter is using a unique IRQ. While the Sealevel
Systems 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 Sealevel Systems adapter is securely installed in a motherboard slot.
5.
When running DOS or Windows 3.x refer to the supplied Sealevel Software and this User
Manual to verify that the Sealevel Systems adapter is configured correctly. This software
contains a diagnostic program ‘SSD’
which will verify if an adapter is configured properly.
This diagnostic program is written with the user in mind and is easy to use.
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.
Re
member that a loopback test is not possible with the ‘NE’ switch turned on.
8.
Always use the Sealevel Systems diagnostic software when troubleshooting a problem.
This will eliminate any software issues from the equation.
If these steps do not solve your problem, please call Sealevel Systems’ Technical Support, (864) 843
-4343.
Our technical support is free and available from 8:00 AM to 5:00 PM Eastern Time Monday through Friday.
For email support, contact
