1
T
his easy-to-install, standalone
media converter enables you
to connect your copper network
to a fiber optic segment while
keeping data flowing at Gigabit
Ethernet speeds.
Compact enough to fit on
the desktop and made of durable
sheet metal, the BLACK BOX
®
Layer 1 Gigabit Media Converter
provides seamless 1000BASE-TX
to 1000BASE-SX or 1000BASE-LX
conversion. We offer two models:
the LG5134A-R3 for connecting to
850-nm multimode fiber; and the
LGC5135A-R3 that supports 1300-
nm single-mode connections.
In the electrical-to-optical
conversion, the media converter
bridges the gap between copper
and fiber optic wiring systems. It
not only brings fiber to the desktop
user but offers access to fiber-
based services for the enterprise.
Use the Layer 1 Gigabit Media
Converter, for instance, to share
your legacy network equipment
and wiring with today’s newer
technologies without having to
undertake a costly upgrade.
Make twisted-pair to fiber conversions
in your Gigabit Ethernet network.
LAYER 1 GIGABIT MEDIA CONVERTERS
By supporting Gigabit Ethernet
speeds, the media converter not
only brings greater bandwidth to
your network, but it gives you an
easy way to connect an enterprise
backbone with a more-demanding
metropolitan area network (MAN)
or wide area network (WAN). With
the converter, enterprise and
service provider networks can
deliver speeds of 1.25 Gbps* over
both copper and fiber optic cabling
infrastructures.
What’s more, with a Layer 1
Gigabit Media Converter, you can
extend the reach of your Gigabit
Ethernet greater distances—up
to
40 kilometers (24.9 miles)
with
the single-mode LGC5135A-R3
model!—while using standard
1000BASE-T switch ports at both
ends of your fiber run. This way,
you can keep using your twisted-
pair cable plant on your local side
and connect an optical switch to
your network.
The LGC5134A-R3 operates
across distances of up to 200
meters (656.2 ft.) on multimode
fiber optic cable.
Because the box performs
its conversions at Layer 1 (the
Physical Layer), the device is
transparent to the network’s
higher-level protocols. In addition,
there’s no bulky external power
transformer to make installation
of the Layer 1 Gigabit Media
Converter cumbersome; the
device has a built-in universal
power supply.
And you won‘t need any
crossover cables for the twisted-
pair side. You can get away with
using just straight-through cabling
to connect your copper devices.
That’s because the converter has
an MDI/MDIX function that
automatically determines whether
the converter has to cross over
between the four pairs on the
1000BASE-TX port’s RJ-45
connector.
The media converter uses
autonegotiation to configure
each of its ports for full- or half-
duplex and master or slave
modes of operation. It does this
by determining which clock will be
used between the media converter
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.
10/7/2004
#10085
* NOTE:
Although the Layer 1 Gigabit Media Converter supports a base signalling rate of 1.25 Gbps, the maximum available
bandwidth to users is 1 Gbps.
Copper-to-fiber
conversions at
Gigabit speeds.
Single-mode and
multimode versions
available.
Distances up to 40 km
(24.9 miles) with the
single-mode model.
Configures
automatically for
correct UTP cabling.
Internal autosensing
power supply.
Compact chassis fits
tight spaces.
Uplink and downlink
fault detection.
Autonegotiates half-
or full-duplex.
Key Features
