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Return loss test, Ground resistance – EXFO CableSHARK P3 VF/DSL Cable Qualifier User Manual

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CableSHARK P3 User Guide

269

Accuracy:

±2dB

Return Loss Test

(Plot with cursor and zoom)

Range:

0 to 60 dB

Resolution:

0.1 dB

Accuracy:

+/- 1 dB from 0 to 40 dB

Horizontal scale:

17 kHz to 2.2 MHz

Vertical scale:

0 to 60 dB




RFL

Resistive Fault Location. Detects faults such as shorts, grounds, and battery crosses.
Displays total loop resistance, resistance to fault & resistance from fault to strap and
equivalent distances.

Fault detection:

0 to 20 MΩ, resolution 3 significant digits

Loop resistance:

7 kΩ maximum

Wire gauges:

0.4, 0.5, 0.6 or 0.8 mm (19, 22, 24, 26 AWG)

Cable temperature range:

-40ºF to +140ºF (-40ºC to +60ºC)

Multiple cable sections:

5 (includes gauge and temperature setting)

Fault location:

Total resistance, near-end to fault resistance, fault to strap resistance (4 significant

digits)

Total length, distance to fault, distance from fault to strap (1 ft (3 m) resolution

Accuracy:

0.1% ±1 LSB for loop resistance of 0 to 99.99Ω

0.2% ±1 LSB for loop resistance of 100Ω - 999.99Ω
1% ± 1LSB for loop resistance of 1kΩ – 7kΩ


Ground Resistance

Detects CO voice switch line cards with constant voltage source, constant current source or grounded
balanced source.

Range:

0 to 500 Ω

Resolution:

1 Ω

Accuracy:

±3 Ω ±1% of reading