Black Box 100BASE-TX User Manual
Convert either 10BASE-T or
100BASE-TX to fiber with this autosensing
10-/100-Mbps media converter.
Convert either 10BASE-T or
100BASE-TX to fiber with this autosensing
10-/100-Mbps media converter.
10-/100-Mbps Autosensing Media Converters
© 2007. All rights reserved. Black Box Corporation.
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FEATURES
• 10-/100-Mbps autosensing on the
copper port.
• Choose multimode or single-mode,
ST or SC connectors.
• Internal power supply is included.
• Only 1U high—fits nearly anywhere!
Use a pair of media converters to connect two multimode
fiber optic network segments via single-mode fiber.
OVERVIEW
Connect 10BASE-T or 100BASE-TX devices to your fiber-
based cabling infrastructure with a BLACK BOX
®
10-/100-Mbps
Autosensing Media Converters. You can use these versatile
media converters to convert 10BASE-T to fiber now and
100BASE-TX to 100BASE-SX or 100BASE-FX fiber later.
Reduce fiber connectivity costs by using these 1U-high
media converters as the link between your fiber network
and your copper-based switches. Not only are they ideal
for future-proofing your fiber-to-desktop applications,
they also make upgrading to 100-Mbps workstations
affordable. All you have to do is change the network
interface card. It’s that simple!
The converters are available in multimode and singlemode versions with ST or SC connectors. Choose multimode
for shorter distances (up to 984.3 ft. [300 meters]) and shortwave transmissions over 850-nm fiber in accordance with the
100BASE-SX standard. Or choose the multimode models that
support 1300-nm fiber at distances up to 1.2 miles (2 km).
Single-mode versions support distances up to 49.7 miles
(80 km) and transmit over 1300- or 1550-nm fiber. The
1300-nm multimode versions and the single-mode versions
are 100BASE-FX compliant.
Power is supplied through an internal 100-/240-VAC power
supply, eliminating the need for unreliable, bulky external
AC/DC transformers.
Link-Fault Detection helps you easily locate faults. When
faults occur, the front-panel LEDs light and show you exactly
where the cable fault is located. The converters also feature a
button by the twisted-pair port for selecting a crossover
workstation connection or a pass-through
repeater/hub/switch connection.
The converter has three modes of operation:
• PNP/Transparent. Autonegotiating, in which the
converter automatically configures for 10 or 100 Mbps
and half- or full duplex. This is the default operation
mode.
• Force-10. The unit acts as a regular 10BASE-T↔
10BASE-FL converter.
• Force-100. The unit functions as a 100BASE-TX↔
100BASE-SX (LMC7001A-R4–LMC7002A-R4), or
100BASE-TX↔100BASE-FX converter (LMC7005A–
LM7006A, LMC7003A-R4–LMC7004A-R4, LMC7007A–
LM7009A).
TYPICAL APPLICATIONS
These media converters are ideally suited for small
companies and remote campuses requiring minimal fiber
connectivity.
The typical user has a 10-Mbps fiber network, plans to
upgrade to 100 Mbps in the future, and doesn’t want to
buy new media converters for the upgrade.
10-Mbps NIC or
100-Mbps NIC
10-/100-Mbps Autosensing
Media Converter
10-/100-Mbps Autosensing
Media Converter
10/100 switch
Multimode fiber
Single-mode fiber
Multimode fiber
NOTE: This application will not work with a 10-/100-Mbps
autosensing network interface card (NIC).
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