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© Sealevel Systems, Inc.
4021 Manual | SL9154 11/2021
Appendix A
–
Troubleshooting
Sealevel Systems has a ACB Developers Toolkit available at your request. The toolkit can be used in the
troubleshooting procedures. Please contact Technical Support as instructed below for more information.
The following simple steps below should eliminate most common problems.
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 IRQ
’s, many other adapters (
i.e., SCSI adapters & on-board
serial ports) do not. The IRQ is typically selected via an on-board header block. Refer to the
section on Card Setup for help in choosing an I/O address and IRQ.
4.
Make sure the Sealevel Systems adapter is securely installed in a motherboard slot.
5.
Use the ACB Developers Toolkit available at Sealevel Systems and the User Manual to verify
that the Sealevel Systems adapter is configured correctly. The toolkit contains a diagnostic
program ‘SSDACB’
that will verify if an adapter is configured properly. This diagnostic program
is written with the user in mind and is easy to use.
Refer to the ‘UTIL.txt’
file found in the /UTIL
sub-directory in the ABC Developers Toolkit for detailed instructions on usi
ng ‘SSDACB.’
6.
The following are known I/O conflicts: The 278 and 378 settings may conflict with your printer
I/O adapter.
•
3B0 cannot be used if a Monochrome adapter is installed.
•
3F8-3FF is typically reserved for COM1:.
•
2F8-2FF is typically reserved for COM2:.
•
3E8-3EF is typically reserved for COM3:.
•
2E8-2EF is typically reserved for COM4:. This is a valid setup option for the
ACB 56
.
However, since only 10 address lines are actually decoded, a possible conflict with an
advanced video card emulating the IBM XGA adapter (8514 register set) may occur.
If these steps do not solve your problem, please call Sealevel Systems’ Technical Sup
port, (864) 843-4343.
Our technical support is free and available from 8:00AM-5PM Eastern Time, Monday through Friday. For
email support contact:
