|The last OMNIScanner left the factory back in July 2005. We regret to say service and support ended July 2009. It's replaced by the Versiv familly of testers. |
The OMNIScanner line of cable testers includes a diagnostic feature called S-Bands. The S-Bands will indicate the point of failure in the link under test.
To begin, turn the OMNIScanner on and connect to the link to test. Press the Autotest button to run the test. When the Autotest is complete, if there is a NEXT failure, this is what the screen will look like. Highlight NEXT and press Enter to view the pair data.
This shows which pair or pairs are failing and the data that was used to determine the failure.
Highlight the pair that you want to diagnose by scrolling with the arrow pad to that pair. You can view Graph by pressing the Graph button .
To determine the location of the failure, you need to use the S-Bands Diagnostics.
In this occurrence, the 36/45 pair is selected. Press the Diagnostics button to begin the S-Bands Diagnostics cycle.
The OMNIScanner will begin the S-Bands Diagnostics on the selected pair.
When the OMNIScanner completes the diagnostics, the following screen appears:
NEXT at 6.5 feet NEXT at 20.3 feet
You can see that the spikes exceed the S-Bands on the left side of the screen. You can also see that the failure is occurring at 6.5 feet as indicated in the upper right of the screen and the vertical line. The vertical line is a movable cursor that can be moved using the arrow pad. This graph indicates that the failure is in the connection. There are also sources of NEXT in the cable as shown by moving the cursor and seeing that the next largest source of NEXT is at 20.3 feet.
This graph indicates that the NEXT failure is in the cable and is occurring at 25.2 feet from the OMNIScanner. This means that the worst NEXT is occurring at 25.2 feet from the head of the scanner.
You can change your view from the OMNIScanner to the OMNIRemote ends by using the Switch To Remote and Switch To Scanner buttons.
This allows you to run the S-Bands Diagnostics from either end of the link being tested.