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Accurately test MultiMode Gigabit Testing with the DSP-FTA440
Networks running Gigabit Ethernet over multimode fiber commonly use a new
type of light source called a Vertical Cavity Surface Emitting Laser (VCSEL).
VCSELs are more cost-effective than conventional lasers and it provide greater
bandwidth than LED light sources.
The proper way to accurately test a fiber network using a VCSEL is with a
tester that uses a VCSEL. Meet the DSP-FTA440 the world's first VCSEL-based
Fiber Test Adapter.
Combining the DSP-FTA440 with a DSP-4000 DSP-4100 or DSP-4300 provides
automatic, dual-fiber loss testing and certification by using a VCSEL laser at
850 nm and a Fabry-Perot (FP) laser at 1310 nm wavelengths. It also measures the
length of fiber links and certifies the results against the Gigabit Ethernet
standard.
In addition, the DSP-FTA440 allows bi-directional testing on both fibers
under test and saves results for both directions in the same record. Utilizing
Fluke Networks' comprehensive CableManager Software you can easily save all
fiber link data electronically for results management and report generation.
Why do I need the DSP-FTA440 Gigabit Multimode Fiber Test Adapter if I
already have an LED multimode tester?
- Networks running Gigabit Ethernet
over multimode fiber, use a light source called a Vertical Cavity Surface
Emitting Laser (VCSEL) for data transmission at 850 nm. More cost-effective than
the traditional laser, a VCSEL provides greater bandwidth than possible with LED
light sources.
With a VCSEL source, the light energy is concentrated in the center of the
fiber, whereas an LED source fills the entire fiber with light energy. The
farther the light energy is away from the center of the fiber, the more likely
it is to escape the fiber and show up as power loss. Therefore, when LED testers
are used to test gigabit multimode fibers, they tend to show more power loss
than is actually present in a network using a VCSEL transmission source. With
the very tight loss budgets for Gigabit Ethernet, you could actually get a FAIL
reading with an LED test, when the link is really working. This could result in
time wasted trying to fix a problem that doesn't exist.
When you test with the VCSEL-based DSP-FTA440, you can be sure that you will
see the actual loss that is present in the network.
Can I test either 62.5 m m or 50.0 m m fiber with the Gigabit Multimode Fiber
Test Adapter?
- Yes. The DSP-FTA440 Fiber Test adapter contains a 50.0 m m
internal launch fiber, so it is perfect for testing 50.0 m m fiber. And it works
just as well for 62.5 m m fiber because the light is being launched from a
smaller fiber (50.0 m m) into a larger fiber (62.5 m m), capturing all of the
light energy. This is true for both 850 nm and 1300 nm wavelengths.
Does it matter what core size or type of patch cord I use?
- Yes. The
patch cord should always match the core size and type of the fiber under test. A
mismatched patch cord may cause inaccurate loss measurements at the mismatched
fiber-to-fiber interface.
Fast and easy testing. Automatic documentation
Testing and certifying all types of optical networks has never been easier
with the DSP Series Cable Testers and our family of Fiber Test Adapters
Fluke Networks' DSP Fiber Test Adapters:
* Test two fibers and two
wavelengths at one time.
* Utilize Fluke Networks' comprehensive
CableManager™ Software for results management and report generation.
* Allow
bi-directional testing on both fibers under test and save results for both
directions in the same record.
* Automatically measure length, propagation
delay and loss.
* Include a built-in TALK feature that allows you to
communication with a person or the other end of the fiber.
* Have a
FindFiber feature that provides a quick check for users at both ends to locate a
signal from the other end.
* Keep track of the maximum and minimum power
throughput of the test with the Monitor feature.
* Efficiently and
accurately test fiber links with any of the four major SFF connectors.
* Are
built rugged to withstand the drops and other mishaps that occur in today's
network installation environments.
Includes:
- Fluke DSP-FTA440 Gigabit Fiber Test Adapter Set
- Fiber Cables:
- - (4) MM ST-SC
- -
(2) MM ST-ST
- (2) ST-ST Fiber Connectors
- User Manual On
CD-ROM
- Hard Copy User Manual
- Original Factory
Box
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