1
Delays optical launch
pulses, making it
possible to get
accurate test results
for initial lengths of
fiberoptic cables.
All versions have
universal connectors
for connection to
cables with ST, SC, FC,
DIN, E2000, or other
types of 2.5-mm-ferrule
termination.
Daisychainable for
longer pulse-delay
times.
Compact, weather-
resistant, and
modularly stackable
cases.
T
esting fiberoptic cable usually
isn’t as much of a pain as
testing copper cable. But there’s
one problem with fiber that can
test the patience of a saint: Light
pulses sent into the cable (the
“launch pulse”) by your Optical
Time Domain Reflectometer
(OTDR) or other test device might
saturate the receiver so badly that
you can’t get a good reading for
some time after the width of the
pulse.
And given how far light can
travel in the duration of a pulse,
you might have no idea what’s
going on in the first 10 or
20 meters of your cable. Maybe
not even in the first 50, 100, or
even 500 meters or more!
That’s where a Launch
Equalizer comes in. If you put one
Don’t settle for guesses or for not really
knowing: Dramatically reduce launch-pulse
uncertainty in your fiber-cable test
measurements.
Key Features
LAUNCH EQUALIZER 100 AND LAUNCH EQUALIZER 500
between your OTDR/tester and
the length of fiber cable you want
to test, the Equalizer will delaythe
launch pulse. By the time the light
signal hits your cable, your test
receiver should be able to handle
it—and get all the measurements
you need.
Our Launch Equalizer 100
contains a 100-m (328-ft.) fiber-
cable coil, and delays launch
pulses 500 ns wide. The
multimode version of the Equalizer
100 is designed to be used with
62.5/125-µm multimode cable
(versions for other core/ cladding
diameters are available on a
special-quote basis). The single-
mode version is designed for
9/125-µm single-mode-cable.
Our Launch Equalizer 500
contains a 500-m (1640-ft.) fiber-
cable coil, and delays launch
pulses 2.5 µs wide. It is designed
to be used with 9/125-µm single-
mode cable (multimode versions
are available on a special-quote
basis).
The Equalizers’ universal
connectors are compatible with
any fiber termination that has 2.5-
mm ferrules, including ST®, SC,
FC, DIN, and E2000.
Their small, rugged cases are
ideal for field use, and can be
modularly stacked. You can also
run patch cables between
Equalizers in order to precisely
match the fiber-length equivalent
you’ll need in order to delay wider
launch pulses (at approximately
1 m/3.3 ft. for each
5 nanoseconds.)
Black Box Corporation
• 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 •
www.blackbox.com
•
e-mail: [email protected]
© 2005. All rights reserved.
Black Box Corporation.
11/2/2005
#21858
