Omega RS-232 Manual Do Utilizador

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Appendix A – Troubleshooting 
OMG-USB-232-1 
Page 8 
 
Appendix A - Troubleshooting 
Serial Utility test software is supplied with the adapter and will be used in the 
troubleshooting  procedures. Using this software and following these simple 
steps, most common problems can be eliminated 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 software has been installed on the machine so that the 
necessary files are in place to complete the installation.  
3. 
When the  OMG-USB-232-1 is configured properly, the USB Enabled LED 
(EN) will be lit. This should allow you to use the WinSSD utility and the 
supplied loopback plug to check communications. The supplied loopback 
plug connects TD to RD.  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  Omega if you need further assistance 
4. 
When testing the  OMG-USB-232-1 in loopback mode, you should see both 
the TD and RD LED’s flashing as well as seeing echoed 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 OMG-USB-232-1 is ready for use 
in your application.