80E00 ElectricalSampling Modules User Manual 17
ReferenceThis chaptercontains the following sections:
HTakingTDR Measurements describes how to use the 80E04 sampling module
to performtime-domain-reflectometry (TDR) measurements.
HTDR MeasurementsBackground contains informat ion that describes the
cause of reflections,measurement range, the velocity of propagation and
measuring mismatches,measurement units, and considerations for making
accurate measurements.
HTakingDifferential and Common-Mode TDR Measurements describeshow to
use the 80E04 sampling moduleto perform differential and common-mode
TDR measurements.
HConnector and Adapter CareRequirements describes proper care and use of
the 80E06 connectorand adapter, including protection against electrostatic
discharge(ESD), cleaning connectors, and the assembly and torquing of
connectors.
HTDR Impedance Measuringdescribes the stand-alone application that
implements the TDR calibrationprocedure(s) specified by the IPC-TM-650
test methodology.
HDetecting Blown Inputsdescribes how to check for damage on an 80E04
sampling module or a non-TDR sampling module.
HEOS (Electrical Overstress) Prevention describes the causes, how to prevent
EOS, and how to check for damage.
TakingTDR Measurements
This section describeshow to use the 80E04 to perform TDR measurements.
Tot ake TDR measurements on transmission lines. U sing TDR, you can measure
the impedancealong a transmission line and determine the distance to an
impedance change.
Verticalcan be scaled in volts, rho, or ohms units.
This featureonly works with a 80E04 sampling module.