User`s guide
8
as the top line for a normal data cable. If there is a miswire, the
numbers on the second line will indicate the pin numbers detected.
If no connection was detected for some of the pins, the second line
will be blank in those pin locations. If a short is detected, the second
line will have a ashing ‘x’ in that position and the specic short
condition displayed on the third line. If a split pair is detected, those
pin positions on the second line will be ashing the pin numbers
detected from the remote and the specic split condition displayed
on the third line. If there are multiple errors to display on the third
line, the messages are displayed in sequence until all are displayed.
The ID icon will have a number directly below it indicating the remote
ID number. If no faults are found on the cable, the length of the cable
is displayed.
If there is no remote, the LanScaper™ uses the length and cable
test capability to measure a cable for shorts, opens and split pairs
(single-ended test). TEST and the pin number icons for the pairs
being tested will be on to indicate a test in progress. The results are
displayed as messages on the LCD. Because a test can take up to
about 5 seconds to complete, the SEL button, which immediately
starts a new test, should be pressed whenever a new cable is
connected. Partial and erroneous results will be displayed until a
complete test cycle has been run on a cable.
3.2.3 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/down arrows. The CAL icon is on
while adjusting the constant. If network termination patterns are
found in the length mode, the tester will display “T Ring Network??”,
“xbase-T Network?” or “Network?” (all four lines terminated). If a
remote is sensed, the ID Number is displayed.
3.2.4 Tone Generator
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