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EXFO FTB-610 Wideband Copper Test Module User Manual

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Copper Test

107

User Auto Test

Resistive Balance measures and compares the resistance of each leg.

Isolation measures the quality of insulation or sheathing for the copper
pairs.

Opens measures the capacitance with distance conversion for each
lead, useful to indicate an open wire.

VF Noise measures voice frequency noise in the line.

Power Influence measures the effects that 50 Hz and 60 Hz power line
(AC Mains) interference has on the circuit under test.

VF Impulse Noise measures the random occurrences of energy spikes
in the voice frequency range that have random amplitude and spectral
content.

WB PSD Noise measures power spectral density noise.

WB Impulse Noise measures the irregular occurrences of energy
spikes in the wideband range that have random amplitude and
spectral content.

Balance determines how much noise the pair can mitigate, in dB,
based on the difference between longitudinal and mutual noise, which
depends on how much the two conductors are the same. It is very
useful in identifying loops that will suffer from crosstalk.

WB Balance performs a balance test like above, but across a very wide
frequency spectrum.

WB Attenuation is a single-ended loss test that calculates the
dissipation of power of a transmitted signal as it travels over the copper
line.

Load Coils counts the number of load coils in the line.