DSX-PCxx Patch Cord Adapters
Users Manual
8
Is the Cable Bad or is the Plug Bad?
You can use the HDTDX and return loss plots to see if a patch cord failed because
of bad cable or a plug that is bad or poorly installed. See Figures 2 and 3.
Figure 2. HDTDX and RL Plots for a Bad Cable
C02.EPS
HDTDX plots for a bad cable show high
crosstalk along the cable.
Bad cable often causes return loss failures at
low frequencies (below 50 MHz)
