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RS-422/485 SERIAL INTERFACE PLUS, 4-PORT
5. Troubleshooting
Two Serial Utility Diskettes are supplied with the adapter and will be used in
the troubleshooting procedures. By using this diskette and following these
simple steps, most common problems can be eliminated. If you still cannot
solve your problem, call Black Box technical support at 724-746-5500.
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 RS-422/485 Serial Interface Plus Card so that there is no
conflict with currently installed adapters. No two adapters can occupy the
same I/O address.
3.Make sure the adapter is using a unique IRQ. While the adapter does
allow the sharing of IRQs, many other adapters (such as SCSI adapters
and 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 adapter is securely installed in a motherboard slot.
5.Use the supplied diskette and User Manual to verify that the adapter is
configured correctly. The supplied diskette contains a diagnostic program
“SSD” 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
“README” file on the supplied diskette for detailed instructions on using
“SSD.”