Exfo FTB-635 Wideband Copper and DSL Test Module Manual de usuario Pagina 19

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Getting Started
Copper and xDSL Tests 11
Cable Connections
WARNING
A 50/100/125/500 Vcc limited power source may be present on con-
nector R/T/R1/T1 when the unit is testing isolation resistance. Use
with caution.
CAUTION
The unit is protected against damage caused by fault voltages that
may be present on lines under test. Do not connect the unit if the
maximum expected fault voltage is greater than 500 volts.
Shield of phone
line
Secondary Ring/B
wire of phone
line
Secondary Tip/A
wire of phone
line
Primary Ring/B wire of phone line
Primary Tip/A wire of phone line
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