Product Description
OWL OPTICAL WAVELENGTH LABORATORIES BOLT-NL Beaming Optical Length Tester-NL up to 25km (SM fibers) No NEW
FEATURES:
Measures the length of both single-mode and multimode fiber with
accuracy of ± 2.5 meters
Generates a pulsed signal for use with fiber identifiers
Easy-to-read bright red 7-segment LED display
10 hours continuous use on one 9v battery
Low battery indicator
Handheld
Lightweight
APPLICATIONS:
BOLT stands for Beaming Optical Length Tester, and offers a unique,
low-cost alternative for users who need to measure the length of
optical fibers.
Fiber installations are increasingly required to have fiber length
measurements to comply with bid requirements. Rather than
purchase certification test sets that can cost thousands of dollars, the
BOLT-NL can be added to an installers existing fiber test kit.
These length testers use a round-robin method of measuring fiber
length. This is accomplished by looping back two fibers at one end of
the fiber run with a patch cord. The round trip time that the light takes
to travel through both fibers is converted to length in kilometers, then
divided by two to show the length of the fiber cable. There is no need
to measure the length of all the fibers; the length measurement can
be applied to all fibers in the cable. This method of length testing
provides accurate measurements, and saves time and money.
Measuring fiber by the jacket is an accepted method of
measurement; however, there are many scenarios where this may
not be valid. Length markings may be hard to reach if they are
already terminated in a patch panel. Fiber links may also go through
multiple cross-connects or have splices in the middle, thereby
making jacket markings invalid. Optical measurement of fiber
produces accurate results without the need for jacket markings.
Optical measurement also saves time by eliminating the need to
estimate the length of the fiber run with a measuring wheel. This
method is especially troublesome and inaccurate in networks that
traverse walls, are in a star topology, or contain riser cables.
The BOLT uses a 1310nm infrared laser that can measure fiber links
of up to 25 kilometers, is accurate to within ±2.5 meters, and pulsing
mode allows for easy fiber location when used with a fiber identifier.
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