EXFO CableSHARK P3 VF/DSL Cable Qualifier - Manual (Page 40)

VF / DSL Cable Qualifier
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CableSHARK
DSLAM
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CABLE
TESTS 13:16:20
Copyright Consultronics Limited 2000 - 2006 Software Version 3.86
AUTO TESTS AUTO SETUP
CableSHARK P3 VF/DSL Cable Qualifier
Figure 5.2.2A - Examples of Circuit where Single Ended Measurements can be used
5.2.3 End-to-End Testing
End-to-End testing allows two CableSHARK’s to connect to the same line to perform a variety of tests (as
shown in Figure 5.2.3A). Tests include End-to-End Frequency Response, DMT tests, and Load Coil
Detection. A CableSHARK at the Far End is the Tx unit, which is running in Remote Responder Mode. It
responds to all End-to-End test requests from the Rx unit as a controller and sends signals for the requested
test down the line to the Rx unit, which in turn converts the signal and analyzes the results. The Rx unit is
the one that analyzes and displays the information.
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CableSHARK P3 xDSL Cable Qualifie r
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A Wo rld of G oo d fo r Yo ur Ne two rk s
SYSTEM
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TESTS DMM
TESTS RECALL
RESULTS 13 :16 :20
RX unit
(initiating test)
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CableSHARK P3 xDSL Cable Qualifie r
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MAIN
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TX unit
Re spo nde r is waitin g f or a r emote -t est task. ..
Figure 5.2.3A- Example of a End to End Measurement
5.2.4 High Voltage Detection
The CableSHARK will provide the user with visual feedback on the CableSHARK’s LCD if a voltage over
60VAC or 60 VDC is detected. This message will appear only once a test has been executed and is meant
to protect the unit from damage and highlight to the user that a high voltage exists on the circuit under test.