CONTINUITY & POLARITY TESTING
KI23400/KI27400 UM-2
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Continuity & Polarity Test Overview
This instrument has a variety of convenient ways to assist the user
with polarity or continuity checking, and fault finding.
VFL-VisiTester Option
The instrument optionally features a fully functional VFL, which has a
blink feature. The VFL uses the Two-Way port, it does not have a
separate output connector.
Integration of the VFL with the Two-way port means that it can be seen
during Autotest loss testing, with no further effort. This means that on
shorter distance tests, polarity can be observed and checked during
loss testing, without requiring an extra hook-up.
This feature can save a lot of time during loss testing, and improve test
confidence, since on shorter distance tests, the fiber to be tested (e.g.
connected to an instrument at one end) shows a flashing red light at
the other end. This can be used to help initiate the testing process or
quickly identify one fiber out of an array if the labelling is wrong or
absent.
Standard Test Tone Source & Detection
The light source and power meter share tone detection features.
Standard test tones at 270 Hz, 1000 Hz and 2000 Hz are available on
the source. If one of these tones is detected by the meter, a buzzer
sounds to show continuity. This function is very similar in operation to
a continuity tone indicator on a voltmeter, for example.
The source can also be used to determine continuity as a tone
generator for most clip-on fiber identifiers (not supplied).
The tone detector measures and displays the actual tone frequency in
Hz.
Advanced Test Tone Source & Detection
This is an advanced polarity detection method.
Using the Multifiber ID extended test tone function, up to 12 fibers can
be uniquely identified in one pass.
To do this, 12 sources can be connected to a group of fibers, with each
source set to a different Multifiber ID number. The sequence is noted
for use at the far end.
Then at the far end, the meter will display ID 1
–
12, depending on the
detected signal, which identifies the polarity of all 12 fibers in one pass.
Note that any Kingfisher Autotest source with Multifiber ID can be
used, such as inexpensive KI9800 series instruments.
For detailed operating instructions on any of these features, please
turn to the relevant section of this manual.
