Microtest OMNIScanner2 User's Guide download pdf (Page 27)

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OMNIScanner User Guide

Running an Autotest for Twisted Pair Cabling

1. Connect OMNI

Scanner

to the near end of the

twisted pair cable you are testing and connect

OMNI

Remote

to the far end.

(See the Typical

Test Configurations for Twisted Pair Cabling

section in this chapter for more information.)

2. Press the

AUT OTES T

key. When testing

twisted pair cable, OMNI

Scanner

will immediately

verify that OMNI

Remote

is attached. If OMNI

Re-

mote

is not attached, OMNI

Scanner

will wait until

it is attached before running the Autotest.

3. Press ESC at any time to cancel the Autotest.

4. The AUTOTEST screen is displayed while

Autotest is running.

The Autotest and the Cable name are displayed

at the top of the screen. A gauge indicates the

test progress. Tests will be listed with their

individual (PASS) or (FAIL) results as soon

as a test is completed.

Once all tests are performed, the overall test

Result: is displayed as PASS or FAIL.

Note: The list of tests varies depending on the

kind of Autotest that was performed.

An Autotest will PASS if all the selected tests

met the specified criteria. An Autotest will FAIL

if one or more of the selected tests failed.

If the measured result fails by an amount less than or equal to the accuracy

of the OMNIScanner measurement system, a (marginal FAIL) will be

reported. If the measured result passes by an amount less than or equal to

the accuracy of the measurement, a (marginal PASS) will be reported.

Marginal results are very close to the PASS/FAIL line and are within the

accuracy of the measurement for that type of link. Accuracy varies depend-

ing upon several conditions including the type of link model and the mea-

surement being performed. In most cases this uncertainty zone is much

less than 1 dB.

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Microtest OMNIScanner2 User's Guide Page 27

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