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Black Box Corporation
• 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 •
www.blackbox.com
•
e-mail: [email protected]
© 2004. All rights reserved.
Black Box Corporation.
10/8/2004#10054
Convert 100BASE-TX
to single-strand
100BASE-FX.
Double your fiber
capacity without
pulling more cable.
Fiber distances up to
40 km (24.9 miles) with
Plus SC models.
Configure
automatically for
correct UTP cabling.
Autonegotiates
for full-duplex.
Replacement units
available.
Internal, autosensing
power supply.
M
inimize the amount of fiber
optic cabling you need in your
new or existing installation with
BLACK BOX
®
Single-Strand Fiber
Media Converters.
They’re ideal for fiber-to-
subscriber service providers,
enterprise LAN networks, or just
about any application where fiber
optic cabling is in short supply
or too expensive to add. Use the
converters, for instance, in a
campus environment to double
fiber capacity without pulling new
cable.
The standalone converters
perform copper-to-fiber conversion
(100BASE-TX twisted pair to
100BASE-FX single-strand fiber) in
a most economic way. They enable
two individual data channels to
share one strand of fiber, so you
can essentially double the capacity
of your single-mode fiber optic
cable or reduce the amount of fiber
cable you need by one-half.
How does it work? Well, typical
duplex fiber depends on a separate
connector for transmit and receive
Cut your fiber optic cable costs!
Send data across one duplex fiber.
Key Features
SINGLE-STRAND FIBER MEDIA CONVERTERS
optics, so it requires fiber to run in
pairs. Single-strand fiber, however,
uses optics that transmit and
receive on two different
wavelengths—in this case, 1310
and 1550 nm. Each individual
wavelength carries a different
signal (TX data and RX data) and,
as long as you have
complementary transmit and
receive optics at each end of the
cable, you can send data over a
single-fiber run. To perform this
wavelength duplexing, you must
use the Single-Strand Fiber Media
Converters in pairs (or connect one
converter to a precisely compatible
single-strand product, such as
LMC5112C).
IEEE 802.3-compliant, each of
these Layer 1 media converters has
an RJ-45 connector for copper
input and an SC connector for
linking to a fiber segment. With the
Plus SC models, you can extend
your 100-Mbps Ethernet network
up to 40 km (24.9 miles) over fiber
optic cable. The regular SC models
support 20-km (12.4-mile) distances
over fiber. Order an SC or a Plus SC
matched-pair kit now, and if either
of the included units becomes
defective, order a single unit as
a replacement.
The matched-pair units ship to
you ready to install. About all you
have to do is consider each one for
LinkLoss™, which notifies you of
“silent failures” in your network
and helps you save time when
troubleshooting.
With LinkLoss, a copper or fiber
link can be checked by physically
observing the status of a front-
panel LED. It not only informs you
that a converter unit is receiving
valid link pulses from a connected
device, but you know that the
converter’s link pulses are being
received at other end. The latter
function is handy in situations
where you’re unable to see a
remote device’s LED to ensure that
it’s receiving link integrity pulses.
Essentially, with LinkLoss the link
status of one segment is always
mirrored on the opposite segment.
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