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CHAPTER 4: Autotest
4. Autotest
Autotest is a preprogrammed set of tests which are required to certify
a cable installation. All of the tests performed by Autotest can also be
performed individually.
Autotest performs these tests: Wire Map, Near-End Crosstalk (NEXT)
at both ends for Two-Way testing, Attenuation, ACR, and Length. The
following tests may be added to the Autotest suite of tests by defining a
custom cable standard: Impedance, Delay/Delay Skew, 250 MHz UTP,
Power Sum Link Performance, Power Sum NEXT, Power Sum ACR,
Cable Grading, and Resistance.
NOTES ON 250-MHz TESTING
• 250-MHz testing is available for all 100-MHz tests. This option is
available by entering the CHANGE CABLE STANDARD menu and editing
the selected test standard. Using this option, the instrument will extend
NEXT and ATTENUATION measurements out to 250 MHz.
• PASS or FAIL indications when running Autotest are based on existing
100-MHz test standards.
• 250-MHz tests can also be enabled by selecting “250 MHz UTP” in the
Cable Standard menu.
• If the SCAN-LAN fails any test, it will stop and display the failure. You
may continue testing by pressing the CONTINUE (F4) softkey.
Refer to
Chapter 6, Cable Test Descriptions
, for a complete description
of these and other tests performed by the SCAN-LAN VI.
Refer to
Chapter 7, Printing, Uploading, and Viewing Test Results
, for
more information about printing test results and uploading test results
to a PC.
4.1 Running Autotest
1. Connect one end of cable to the main unit and the other end to the
remote unit.
2. Set the remote unit’s dial to REMOTE.
Set the main unit’s dial to AUTOTEST. The test runs automatically,
then displays the results. (Press the arrow keys to change the cable
test standard.)
Summary of Contents for SCAN-LAN VI
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