User guide

© Sealevel Systems, Inc.
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SeaLINK+16.VC User Manual
Appendix A - Troubleshooting
Sealevel Software is supplied with the Sealevel Systems 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. If your adapter isn’t working, first check to make sure that USB support is
enabled in the System BIOS and it is functioning properly in the operating
system. This can be done by using either the Windows 98/ME or Windows 2000
Device Manager.
2. Ensure that the Sealevel Systems software has been installed on the machine so
that the necessary files are in place to complete the installation.
3. When the SeaLINK+16.VC is configured properly, Sealevel’s WinSSD utility
and a loopback plug can be used to check communications. You can make a
simple Loopback in the field by connecting the TX and RX pins. If you decide to
test the Modem Control Signals, a full pin loopback plug will be required. Details
on loopback plugs are included within WinSSD. Contact Sealevel Systems if you
need further assistance.
4. When testing the SeaLINK+16.VC in loopback mode, you should see both the
TD and RD echoed as data on the screen. The loopback test first transmits a HEX
pattern, 55AA, and then an ASCII string of data. If this test passes, then the
SeaLINK+16.VC is ready for use in your application.
5. 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, [phone]. Our technical support is free and available from 8:00 AM
to 5:00 PM Eastern Time Monday through Friday. For email support contact
[e-mail]
.