DSX-600 CableAnalyzer
Technical Reference Handbook
118
Note
Because the tester cannot complete all tests, and
the reflection at the end of the cable exceeds the
15% limit for the HDTDR test, the result for an
Autotest without a remote is always FAIL.
Table 6. Remote Requirements for Coaxial Tests
Test Remote Requirements*
HDTDR
analyzer
Optional. Without a remote, the plot shows large
reflections at the end of the cabling.
Resistance A remote or a terminator is required for a loop resistance
measurement.
Length Not required.
Because a coaxial cable terminator eliminates signal
reflections, the tester cannot measure the length of
terminated cabling. The tester shows End not found in this
case.
Impedance Optional.
Without a remote or terminator, the tester cannot measure
the impedance of cables longer than 984 ft (300 m). The
tester shows Unknown in this case.
Propagation
delay
Not required.
Because a coaxial cable terminator eliminates signal
reflections, the tester cannot measure the propagation
delay of terminated cabling. In this case, the tester shows
End not found.
Insertion Loss Required.
* If a remote is not required for a test, the test runs without activating the toner
when no remote is detected.
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