Progressive Electronics PE930 Manual De Instrucciones página 11

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Troubleshooting (cont'd)
Symptom*
Intermittent or
variable current
Distortion, dialing
difficulty
Dead circuit
*Wet cables may cause most of these symptoms and may cause multiple symptoms to
appear at the same time.
Possible Cause /
Troubleshooting Step
Wet cables or a bad
connection
(1) When using the
test set in Talk
mode, the voltage
will be lower than
normal.
(2a) When using the
test set in Monitor
mode, or with the
test set discon-
nected, the voltage
will be normal.
(2b) When using the
test set in Monitor
mode, or with the
test set discon-
nected, the voltage
will be lower than
normal.
Open circuit or short
circuit
Explanation
If accompanied by noise, the cause is usually
wet cables.
If no noise is present, the cause is probably a
bad connection in a cross-connect or a bad
connection at the central office.
(2a) This indicates a high-resistance fault,
which restricts the amount of current
flowing through the circuit. Possible faults
include a poor connection, wet cables, or a
line extender failure.
(2b) This indicates a partial short circuit.
Break the circuit down into sections and check
each section for continuity.
PE930 & PE940
11
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Pe940

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