User`s guide

4
starts a new test, should be pressed whenever
a new cable is connected for pre-test. Partial
and erroneous results will be displayed until a
complete test cycle has been run on a cable.
Length – The length mode measures the
length of a cable by measuring its capacitance
and using the capacitance per unit length
(length constant) to calculate the length. The
length is displayed on the LCD along with the
current value of the length constant. The SEL
button changes the pair being measured in
a 1-2, 3-6, 4-5, 7-8 and auto-select sequence.
The pair number is displayed next to the length
except in auto-select mode. If a selected
pair has a fault, the fault replaces the length
reading on the LCD. In auto-select mode, the
tester automatically selects a pair without a
fault. The length constant is changed with the
up and down arrows. The CAL icon is on while
adjusting the constant. If network terminator
patterns are found in length mode, the tester
will display “T Ring Network??”, “xbase-
T Network?” or “Network?” (all four lines
terminated).
Tone – The tone mode generates audio tones
for use with tone tracers on all pairs, a selected
pair or a selected pin. The signal generated
on a pair has the signal on one pin and the
complement of the signal on the other pin of
the pair, yielding a nominal 10 volts peak-to-
peak across the pair. The SEL button selects