DTX Series CableAnalyzer
Technical Reference Handbook
iv
Creating a List of Sequential IDs ................................................................................................................ 2-23
About ANSI/TIA/EIA-606-A Cable IDs ......................................................................................................... 2-25
3 Certifying Twisted Pair Cabling
Setting the Reference ...................................................................................................................................... 3-1
Testing Twisted Pair Patch Cords ..................................................................................................................... 3-2
Twisted Pair Test Settings ................................................................................................................................ 3-3
Autotest on Twisted Pair Cabling .................................................................................................................... 3-6
Twisted Pair Autotest Results .......................................................................................................................... 3-9
Automatic Diagnostics ................................................................................................................................ 3-11
PASS*/FAIL* Results ..................................................................................................................................... 3-12
About dB Rules ............................................................................................................................................ 3-13
Wire Map ..................................................................................................................................................... 3-15
Resistance .................................................................................................................................................... 3-17
Characteristic Impedance ............................................................................................................................ 3-17
Length .......................................................................................................................................................... 3-18
Propagation Delay and Delay Skew ........................................................................................................... 3-19
Insertion Loss ............................................................................................................................................... 3-20
NEXT (Near-End Crosstalk) .......................................................................................................................... 3-22
ACR-N (Attenuation to Crosstalk Ratio at the Near End) .........................................................................3-24
Return Loss .................................................................................................................................................. 3-26
PS NEXT (Power Sum Near End Crosstalk) ................................................................................................. 3-28
PS ACR-N (Power Sum Attenuation to Crosstalk Ratio, Near End) ........................................................... 3-28
ACR-F (Attenuation to Crosstalk Ratio, Far End) ....................................................................................... 3-28
PS ACR-F Test ............................................................................................................................................... 3-30
Running Single Tests ........................................................................................................................................ 3-32
Monitoring Impulse Noise ............................................................................................................................... 3-34
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