Isolating Individual Wire Pairs With The Smarttone Analog Function; Smarttone Positive Identification - Fluke IT200 User Manual

Isolating Individual Wire Pairs with
the SmartTone Analog Function
H
The position on the IT200 probe and toner lets you
use the probe to trace using an analog 1kHz tone.
SmartTone is intended for use on dry pairs of wires that
are un-terminated at both ends of the run. It is not
intended to be used on live wires with a DC power source
(e.g., live telephone lines), nor will it work on wire pairs
that are carrying AC signals. SmartTone works on many
types of wire pairs including twisted pair, house wiring,
and coax (the shield is one wire and the center conductor
is the other wire of the pair).

Isolating Individual Wire Pairs with the SmartTone Analog Function

SmartTone Positive Identification

1. The toner red lead must be connected to one of
the wires of the pair, and the black lead must be
connected to the other wire of the pair.
2. Put the toner and probe in the
3. At the far end of the cable run, place the probe
near the wires you are tracing. Pick the pair that
gives the loudest signal in the toner speaker.
4. Short and release the two wires of the pair. If
you hear a change in the pattern of the tone,
then you have located the target pair of wires.
If you don't hear a change in the tone pattern,
then pick a different pair and try again until
you find the pair that causes the tone pattern
to change.
H
position.
9