Black Box LMC009A-R4 User Manual

© Copyright 2006. Black Box Corporation. All rights reserved

1000 Park Drive * Lawrence, PA. 35055-1018 * 724-746-5500 * Fax [phone]

Document Number 51-80124BB-00-A0 August 2006

Order toll-free in the U.S.: 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax [phone]
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: [e-mail]

CUSTOMER

SUPPORT

INFORMATION

Compact Media Converter

TP/BNC 50 Ohm

August 2006

LMC009A-R4

Notes:

Federal Communication Commission Radio Frequency
Interference Statement

This equipment has been tested and found to comply with the limits for a Class B computing
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference
to radio communications. Operation of this equipment in a residential area is likely to cause
harmful interference in which the user will be required to correct the interference at his own
expense.

Any changes or modifications not expressly approved by the manufacturer could void the
user’s authority to operate the equipment.

The use of non-shielded I/O cables may not guarantee compliance with FCC RFI limits.
This digital apparatus does not exceed the Class B limits for radio noise emission from
digital apparatus set out in the Radio Interference Regulation of the Canadian Department of
Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites
applicables aux appareils numériques de classe B prescrites dans le Règlement sur le
brouillage radioélectrique publié par le ministère des Communications du Canada.European
Directive 2002/96/EC (WEEE) requires that any equipment that bears this symbol on product
or packaging must not be disposed of with unsorted municipal waste. This symbol indicates
that the equipment should be disposed of separately from regular household waste. It is the
consumer’s responsibility to dispose of this and all equipment so marked through designated
collection facilities appointed by government or local authorities. Following these steps
through proper disposal and recycling will help prevent potential negative consequences to the
environment and human health. For more detailed information about proper disposal, please
contact local authorities, waste disposal services, or the point of purchase for this equipment.

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About the Compact Media Converter TP/BNC 50 Ohm . . . . . .1

Compact Media Converter TP/BNC 50 Ohm Front Panel . . . . .1

Twisted Pair Crossover/Pass-Through Switch . . . . . . . . . . . . . .2

BNC Port Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Installing the Compact Media Converter TP/BNC 50 Ohm . . .2

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Black Box Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Federal Communications Commission

Radio Frequency Interference Statement . . . . . . . . . . . . . . . . . .4

Table of Contents

Specifications

Environmental

Operating Temperature: 32° - 104° F (0° - 40° C)

Storage Temperature: 0° - 160° F (-20° - 70° C)

Humidity: 5 - 90% non-condensing, 0 – 10,000 ft. altitude

Power

AC Input Load: 100/240V±10% ~ 50/60 Hz, 0.1/0.05A

Dimensions

1.64”H x 4.75”W x 4.54”D (4.17cm x 12.07cm x 11.53cm)

Shipping weight: 1.3 lbs. (0.6 kg)

Black Box Customer Service

Order toll-free in the U.S.: Call 877-877-BBOX

(outside U.S. call 724-746-5500)
FREE technical support, 24 hours a day, 7 days a week

Call: 724-746-5500 or Fax: [phone]

Mail order: Black Box Corporation

1000 Park Drive, Lawrence, PA 15055-1018

Web site: www.blackbox.com

E-mail: [e-mail]

Warranty

Contact Black Box for warranty information.

3

About the Compact Media Converter TP/BNC 50 Ohm

With the Compact Media Converter TP/BNC, 50 coax cable installations become more

accessible.

The Compact Media Converter TP/BNC is a 10 Mbps Ethernet Twisted Pair to 50

Ω Coax

cable (e.g. RG-59) Media Converter, that allows the continued use of the already-installed 50

Ω

analog cable, eliminating the need to re-cable. As a low-cost, IEEE 802.3 single-conversion,
1U high, standalone media converter, the Compact Media Converter TP/BNC converts 10Base­T twisted pair to 10Base-2 thin coax and includes one RJ-45 connector and one RG-59 BNC
connector. Each Compact Media Converter TP/BNC includes diagnostic LEDs and an internal
100/240 VAC power supply.

Compact Media Converter TP/BNC 50 Ohm Front Panel

The LEDs

Each Compact Media Converter TP/BNC features diagnostic LEDs. The following
illustration shows the location of the LEDs, and other features, on the Compact Media
Converter TP/BNC. The LED functions for the Compact Media Converter TP/BNC are as
follows:

TP LNK/ACT Glows yellow when a twisted pair link is established and flickers when

data is being received..

BNC ACT Flickers green in normal operation indicating activity on the BNC port.
BNC COL Flickers red in normal operation indicating collisions are being detected

on the BNC segment.

POWER Flickers yellow when the unit is receiving power.

Twisted Pair port

AC Power

LEDs

Thin Coaxial Port

BNC Termination

switch

Crossover/

pass-through

switch

Twisted Pair Crossover/Pass-Through Switch

The twisted pair port on the Compact Media Converter TP/BNC features a push-button
switch, located next to the twisted pair connector, for selecting a crossover workstation
connection or pass-through repeater/hub connection.

Select a pass-through connection by pressing the push-button IN. A crossover connection
is selected when the push-button is OUT. If uncertain whether a crossover or pass-through
connection is needed, set the push-button to the position that makes the TP LNK (link) LED
glow.

BNC Port Termination

The Compact Media Converter TP/BNC features a 2-position, termination switch (TERM)
next to the BNC connector that allows a thin coaxial segment to be terminated at the port
without the use of an external ‘T’ connector/terminator. (See the diagram in the Compact
Media Converter TP/BNC 50 Ohm Front Panel section.)

If a ‘T’ connector/terminator is used, this switch must be set in the OFF (disabled) position.
Otherwise, double termination will result, which will corrupt the signal.

Installing the Compact Media Converter TP/BNC 50 Ohm

The Compact Media Converter TP/BNC converters come ready to install. Deploy Compact
Media Converter TP/BNC units in pairs, or connect a Compact Media Converter TP/BNC
converter to another Black Box converter. To install a Compact Media Converter TP/BNC
converter, first make sure that the unit is placed on a flat surface. Attach the cables between the
Compact Media Converter TP/BNC and each device that will be interconnected, then plug the
unit into a reliable, filtered power source. Make sure to connect the BNC port of the Compact
Media Converter TP/BNC converter only to 50

Ω coaxial cable.

When connecting an Ethernet cable to the Compact Media Converter TP/BNC, make sure
the cable corresponds to the crossover/pass-through switch. When using a crossover cable,
make sure the switch is out, in the “X” setting. The switch can be pressed again to change the
setting.

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