Contents (continued)
iii
Return Loss (RL) ................................................................................................. 3-21
RL@REMOTE .................................................................................................... 3-23
PSNEXT (Power Sum NEXT) and PSNEXT@REMOTE.................................. 3-23
PSELFEXT (Power Sum ELFEXT) .................................................................... 3-23
PSACR (Power Sum ACR) and PSACR@REMOTE ......................................... 3-23
Autotest on Coaxial Cabling ....................................................................................... 3-23
Autotest Results for Coaxial Cabling.......................................................................... 3-25
Characteristic Impedance..................................................................................... 3-25
Resistance............................................................................................................. 3-26
Length.................................................................................................................. 3-26
Anomaly............................................................................................................... 3-26
Saving Autotest Results .............................................................................................. 3-27
Saving Results with Auto Sequence Disabled ..................................................... 3-27
Saving Results with Auto Sequence Enabled....................................................... 3-29
Saving Results with Downloaded Cable IDs (DSP-4300) ................................... 3-30
Changing the Cable ID for a Saved Autotest Report ........................................... 3-30
If Memory is Full................................................................................................. 3-31
Saving Results to Internal Memory (DSP-4300) ................................................. 3-31
The Autotest Report .................................................................................................... 3-32
4 Running Individual Tests ............................................................................. 4-1
Single Tests for Twisted Pair Cabling......................................................................... 4-1
Scanning Function....................................................................................................... 4-2
When to Use a Remote Unit........................................................................................ 4-2
Running a Single Test on Twisted Pair Cabling.......................................................... 4-4
The HDTDX Analyzer................................................................................................ 4-6
Running the HDTDX Analyzer............................................................................ 4-6
HDTDX Analyzer Results ................................................................................... 4-7
HDTDX Analyzer Plot......................................................................................... 4-8
The HDTDR Test........................................................................................................ 4-9
How to Terminate the Cable ................................................................................ 4-9
Running the HDTDR Test on Twisted Pair Cabling............................................ 4-11
Running the HDTDR Test on Coaxial Cabling.................................................... 4-11
HDTDR Results Screen ....................................................................................... 4-12
HDTDR Plot Screen............................................................................................. 4-12
Single Test Results for Twisted Pair Cabling.............................................................. 4-14
Wire Map ............................................................................................................. 4-14
Length.................................................................................................................. 4-14
NEXT and NEXT@REMOTE............................................................................. 4-14
ELFEXT............................................................................................................... 4-14
Impedance............................................................................................................ 4-15
Attenuation (Insertion Loss) ................................................................................ 4-15
Resistance............................................................................................................. 4-15
Return Loss (RL) and RL@REMOTE................................................................. 4-15
Power Sum NEXT and Power Sum NEXT@REMOTE...................................... 4-15
Power Sum ELFEXT ........................................................................................... 4-15