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TES 46 - V. CALIBRATING CABLE LENGTH; Calibration Importance and Process

TES 46
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For twisted pair cables, when the tester checks for a cable remote
identifier unit (ID) at the other end of the cable and a pass condition
exists, the LCD will display the following information.
Good cable, cable remote unit ID#8 detected.
Good cable, no cable remote unit detected or
the tester may not sense the remote unit.
If testing coaxial cable with a termination, the tester dispalys the total
resistance of the cable wires and the terminetion.
COAX ST = 49.0 Ω
Only coaxial cables must be unterminated for the tester to display the
cable’s length. If a coaxial cable is open looks just like an unterminated
cable, then a length measurement that is less than the known cable
length would indicate a possible open in the cable.
The tester if a failure is detected, additional information can be viewed
with the / keys. The failure messages refer to individval wires
rather than pairs of wires. The TEST mode failure messages are
described in following tables.
8
Test failures (without remote unit)
FAILURE DISPLAY DESCRIPTION
Short (UTP/FTP) 12 SHORT < 2.1m
Displays shorted wires and
most likely distance to the short.
Short COAX COAX ST < 10.6m
Displays the most likely
distance to the short.
OPEN 12 OPEN < 50.5m
Display open wires and the
open whether it is at the near or
far end of the cable.
Split Pair 13 SPLIT PR
Displays wire pairings that are
incorrect based on the cable
selected.
A short greater than 0, will cause display a length greater than the
actual distance to the short. The tester uses 0 to calculate distance
to a short.
Test Failures with remote unit
FAILURE DISPLAY DESCRIPTION
Miswire 12 63 45 78
Display the incorrect wiring of the
end connectors.
Open 6 OPEN < 100.0m
Display the broken wire and the
distance to the break.
Pair Length PAIR LENGTH
Indicates that the length of the pairs
within a cable are abnormal
different.
Split Pair 13 SPLIT PR
A portion of the cable assembly has
split pairs or a poor quality cable.
9
PASS ID#8
100m
PASS ID#?
100m

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