Black Box LHC001A-R4 User manual

About Compact Media Converter
CCoommppaacctt
MMeeddiiaa CCoonnvveerrtteerr is a low-cost, IEEE 802.3
single-conversion media converter that converts
between 100 Mbps twisted pair and 100 Mbps
multi-mode or single-mode fiber. It is available
with one RJ-45 connector for the twisted pair port
and several types of fiber connectors, including
ST, SC and MT, for the fiber port. Single-strand
fiber versions are also available. Compact Media
Converter is a 1U high, standalone unit that
includes diagnostic LEDs for each port and a
universal (100/240 VAC) power supply.
100B TX - 100B FX MM —100Base-TX twisted pair/
100Base-FX 1300 nm multi-mode fiber; includes
one RJ-45 connector and one pair ST (LHC001A-R4)
or SC (LHC002A-R4) connectors or one MT
(LHC007A-MT-R3) connector.
100B TX - 100B SX MM — 100Base-TX twisted pair/
100Base-SX 1850 nm multi-mode fiber; includes
one RJ-45 connector and one pair ST (LHC008A-R3)
or SC (LHC009A-R3) connectors
100B TX - 100B FX SM/PLUS —100Base-TX twisted pair/100Base-FX 1310 nm single-
mode fiber; includes one pair ST (LHC005A-R4) or SC (LHC006A-R4) connectors
100B TX - 100B SSFX SM —100Base-TX twisted pair/100Base-FX single-strand, single-
mode fiber; includes one RJ-45 connector and one SC connector; 1310xmt/1550rcv
module (LHC5129-R3); 1550xmt/1310rcv module (LHC5130A-R3)
100B TX - 100B SSFX SM/PLUS —100Base-TX twisted pair/100Base-FX single-strand,
single-mode fiber with higher power budget; includes one RJ-45 connector and one
SC connector; 1310xmt/1550rcv module (LHC5132-R3); 1550xmt/1310rcv module
(LHC5133A-R3)
Installing Compact Media Converter
Compact Media Converter comes ready to install; make all configurations after
installation. To install Compact Media Converter, first make sure that the unit is
placed on a suitable flat surface. Attach the cables between the Compact Media
Converter and each device that will be interconnected, then plug the unit into a
reliable, filtered power source.
NOTE
Since single-strand fiber products use optics that transmit and receive on two different
wavelengths, you must deploy single-strand fiber products in pairs, or connect two com-
patible Black Box single-strand fiber products.
FEDERAL COMMUNICATIONS 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.
1
8
1000 Park Drive • Lawrence, PA 15055-1018 USA
TEL: [phone] • FAX: [phone]
E-MAIL: [email protected]
WEB: http://www.blackbox.com
© 2001-2004 Black Box Corporation. All rights reserved.
The information in this document is subject to change without notice. Black Box Corporation assumes no responsibility for
any errors that may appear in this document. Specific brands and product names may be trademarks and are the property
of their respective companies.
Document Number 55-80128BB-00 A1 July 2004
QUICK START
Installation 1
Configuration 2
Crossover/Pass-Through 2
LinkLoss &FiberAlert 2
Auto-Negotiation 4
LED Operation 5
Technical Support 6
Safety Certifications 7
NOTE
All versions of the 100 Mbps Fast
Ethernet Compact Media Converter,
including 1300 nm multi-mode, 1310
nm and 1550 nm single-mode (TX/FX),
850 nm multi-mode fiber (TX/SX) and
single-strand versions (TX/SSFX), will be
referred to as Compact Media Converter
throughout this installation guide except
where differences need to be indicated.
100 Mbps Compact Media Converter
Installation Guide
LHC001A-R4 - LHC002A-R4 - LHC005A-R4 - LHC006A-R4
LHC007A-MT-R3 - LHC008A-R3 - LHC009A-R3
LHC5129-R3 - LHC5130A-R3 - LHC5132A-R3 - LHC5133A-R3

Configuring Compact Media Converter
Compact Media Converter features an 8-position
DIP switch for configuring the unit after installation.
This switch is accessed through a cut-out in the bot-
tom of the unit. After configuring the DIP switch,
power down the unit and then power up again for
the changes to take effect. Default settings for the
following features are shown to the right.
• TX LinkLoss • FX LinkLoss
• FiberAlert (Pulse) • MDI/MDI-X (Auto)
• Auto-Negotiation
Bottom of converter
TWISTED PAIR CROSSOVER/PASS-THROUGH
CONNECTIONS
Whether you are using crossover or straight-through CAT5 twisted pair
cabling, Compact Media Converter will support both types of connections by
one of the following methods:
AutoCross Switch 4: Compact Media converter includes AutoCross, a fea-
ture which automatically selects between a crossover workstation or pass-
through/ repeater hub connection depending on the connected device. To
enable AutoCross, move the Auto MDI/MDI-X switch to the ON position.
MDI/MDI-X Switch 3: To manually configure Compact Media Converter for
a pass-through (MDI) or a crossover (MDI-X) connection, move the Auto
MDI/MDI-X Switch 4 to OFF, then move Switch 3 to the desired connection
type: MDI=OFF and MDI-X=ON. If you are unsure of the type of connection,
set the DIP switch to a position that makes the twisted pair LNK (link) LED glow.
About FiberAlert and LinkLoss
Compact Media Converter comes with the following troubleshooting features:
•FX LinkLoss (a.k.a. "Fiber LinkLoss" or "LinkLoss")
•TX LinkLoss (a.k.a. "Twisted Pair LinkLoss” or "Reverse LinkLoss”)
•FiberAlert (including Pulsing FiberAlert)
LinkLoss and FiberAlert are advanced troubleshooting features that can help
you locate "silent failures" on your network. However, it is vital that you under-
stand exactly how FiberAlert and LinkLoss work, and how they will react in your
network configuration, before attempting to install the enclosed module(s).
Installing modules without understanding the effects of LinkLoss
and FiberAlert can cause perfectly functioning units to appear
flawed or even dead.
If you are unfamiliar with LinkLoss and FiberAlert, Black Box strongly encour-
ages you to read the following information. Contact Black Box technical support
for more information/assistance.
FIBER OPTIC CLEANING GUIDELINES
Fiber Optic transmitters and receivers are extremely susceptible to contamination by parti-
cles of dirt or dust, which can obstruct the optic path and cause performance degradation.
Good system performance requires clean optics and connector ferrules.
1) Use fiber patch cords (or connectors, if you terminate your own fiber) only from a rep-
utable supplier; low-quality components can cause many hard-to-diagnose problems
in an installation.
2) Black Box installs dust caps to ensure factory-clean optical devices. These protective
caps should not be removed until the moment of connecting the fiber cable to the
device. Assure that the fiber is properly terminated, polished and free of any dust or
dirt, and that the location is as free from dust and dirt as possible.
3) Store spare caps in a dust-free environment such as a sealed plastic bag or box so that
when reinstalled they do not introduce any contamination to the optics.
4) Should it be necessary to disconnect the fiber device, reinstall the protective dust
caps.
5) If you suspect that the optics have been contaminated, alternate between blasting
with clean, dry, compressed air and flushing with methanol to remove particles of dirt.
ELECTROSTATIC DISCHARGE PRECAUTIONS
Electrostatic discharge (ESD) can cause damage to your add-in modules. Always observe the
following precautions when installing or handling an add-in module or any board assembly.
1) Do not remove unit from its protective packaging until you’re ready to install it.
2) Wear an ESD wrist grounding strap before handling any module or component. If you
do not have a wrist strap, maintain grounded contact with the system unit throughout
any procedure requiring ESD protection.
WARNING! Integrated circuits and fiber optic components are extremely susceptible
to electrostatic discharge damage. Do not handle these components directly unless
you are a qualified service technician and use tools and techniques that conform to
accepted industry practices.
3) Hold boards by the edges only; do not touch the electronic components or gold connectors.
4) After removal, always place the boards on a grounded, static-free surface, ESD pad or
in a proper ESD bag. Do not slide the board over any surface.
WARRANTY
Contact Black Box for warranty information.
SAFETY CERTIFICATIONS
UULL//CCUULL::Listed to Safety of Information Technology Equipment, Including Electrical Business Equipment.
CCEE::The products described herein comply with the Council Directive on Electromagnetic
Compatibility (89/336/EEC) and the Council Directive on Electrical Equipment Designed for use
within Certain Voltage Limits (73/23/EEC). Certified to Safety of Information Technology
Equipment, Including Electrical Business Equipment. For further details, contact IMC Networks.
Class 1 Laser product, Luokan 1 Laserlaite,
Laser Klasse 1, Appareil A’Laser de Classe 1
72

ABOUT LINK INTEGRITY
During normal operation, link integrity pulses are transmitted by all point-to-
point Ethernet devices. When an Black Box media converter receives valid link
pulses, it knows that the device to which it is connected is up and sending puls-
es, and that the copper or fiber cable coming from that device is intact. The
appropriate “LINK” LED is lit to indicate this. The Black Box media converter
also sends out link pulses from its copper and fiber transmitters, but normally
has no way of knowing whether the cable to the other device is intact and the
link pulses are reaching the other end. FiberAlert and LinkLoss allow this infor-
mation to be obtained from the fiber, even when physical access to a remote
device (and its link integrity LED) is not available. (See below for explanation
of features, see page 4 for using the features in a typical application).
WHAT ISFX LINKLOSS?
FX LinkLoss is a troubleshooting feature. When a fault occurs on the fiber seg-
ment of a conversion, FX LinkLoss detects the fault and passes this information to
the twisted pair segment. If a media converter is not receiving a fiber link, FX
LinkLoss disables the transmitter on the media converter's twisted pair port. This
results in a loss of link on the device connected to the twisted pair port.
WHAT ISTX LINKLOSS?
TX LinkLoss is another troubleshooting feature. When a fault occurs on the twist-
ed pair segment of a conversion, TX LinkLoss detects the fault and passes this infor-
mation to the fiber segment. If a media converter is not receiving a twisted pair
link, TX LinkLoss disables the transmitter on the media converter's fiber port. This
results in a loss of link on the device connected to the fiber port.
WHAT ISFIBERALERT
FiberAlert minimizes the prob-
lems associated with the loss of one
strand of fiber. If a strand is unavail-
able, the Black Box device at the
receiver end notes the loss of link.
The device will then stop transmit-
ting data and the link signal until a
signal or link pulse is received. The
result is that the link LED on BOTH
sides of the fiber connection will go out indicating a fault somewhere in the fiber
loop. Using FiberAlert, a local site administrator is notified of a fault and can quick-
ly determine where a cable fault is located.
Installation Troubleshooting
•During installation, first test the fiber and twisted pair connections with all trou-
bleshooting features disabled, then enable these features, if desired, just before
final installation. This will reduce the features’ interference with testing.
•When working with units where the features cannot be disabled, you must
establish BOTH your twisted pair and fiber connections before the link
LEDs will light!
•To test a media converter by itself, first make sure you have an appropriate
fiber patch cable, then follow these steps to test:
SStteepp
11:: Connect the media converter to the twisted pair
device with a twisted pair cable.
SStteepp
22::Loop a single strand of fiber from the transmit port to
the receive port of your media converter.
SStteepp
33::Verify that you have both twisted pair and fiber link
(see LEDs, below) on your media converter.
•Make sure to use the appropriate twisted pair cable, and have the
crossover/pass-through switch set correctly, if your media converter does
not include AutoCross.
• If using a high powered device (which is designed for long distance
installations) for a short distance installation, the fiber transmitters
may overdrive the receivers and cause data loss. If this is the case,
you may need to add an optical attenuator to your connection.
Please contact Black Box for more information.
General Information
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: [email protected]
SPECIFICATIONS
Environmental
Operating Temperature: 32° - 122° F (0° - 50° C)
Storage Temperature: 0° - 160° F (-20° - 70° C)
Humidity: 5 - 95% (non-condensing)
Power
AC Input Load: 100-240VAC ±10%, 50/60 Hz, 1A
Heat generated: 51 BTU/hr.
36

USING FIBERALERT AND LINKLOSS
The following table provides an overview of the troubleshooting features, their
functionality and the recommended settings for a pair of media converters in a
typical central/main site to remote site application:
WHAT ISPULSING FIBERALERT?
Use Pulsing FiberAlert in the following two situations:
A) When connecting two Compact Media Converters (or connecting one to
a 100 Mbps Media Conversion module) with FiberAlert enabled.
B) When connecting one Compact Media Converter with FiberAlert enabled
and one Compact Media Converter 10/100 unit with Link Fault Detection
(LFD) enabled.
NOTE: Pulsing FiberAlert may be useful when connecting Compact Media Converter to another manu-
facturer’s product that has a similar feature to FiberAlert.
NOTE: Please refer to the Compact Media Converter 10/100 Installation Guide for more information on LFD.
Auto-Negotiation on Compact Media Converter
Compact Media Converter includes Auto-Negotiation. When Auto-Negotiation
is enabled (default), the media converter negotiates as a 100 Mbps Full-Duplex
device; if the device the Compact Media Converter is connected to can operate
at 100 Mbps Full-Duplex, a link will be established.
If the twisted pair port on the other device does not have the ability to auto-negoti-
ate, or if a 100 Mbps Half-Duplex connection is desired, Auto-Negotiation on Compact
Converter 1 Converter 2
FiberAlert Enabled FiberAlert and Pulsing FiberAlert Enabled
FiberAlert Enabled FiberAlert Disabled
NOTE
FiberAlert is not available/applicable on single-strand fiber versions of Compact Media Converter .
INSTALLATION TIP!
Enable FiberAlert on only ONE side of a media conversion; enabling it on both sides will keep both
transmitters off indefinitely. If you want to enable
FiberAlert on BOTH sides of the conversion, you
MUST also enable
Pulsing FiberAlert on one unit. Black Box recommends enabling Pulsing
FiberAlert
on ONE side (see below).
LINKLOSS/FIBERALERT COMPARISON TABLE
Feature Fault Location Disabled LEDs Enable At:
FX LinkLoss Fiber Twisted Pair Main Site Only
TX LinkLoss Twisted Pair Fiber Remote Site Only
FiberAlert Fiber Fiber Remote Site Only*
54
Media Converter must be disabled. Half- and Full-Duplex settings must be manual-
ly set and match on both devices to which Compact Media Converter is connected.
The diagram below shows a typical application, followed by a table with
three possible configurations.
If you are unsure of how best to implement this feature in your configuration,
please contact Black Box Technical Support.
LED Operation
Compact Media Converter features four diagnostic LEDs. The diagram below
shows the location of the unit’s LEDs.
The LED functions are:
FFXX
RRCCVVGlows yellow when module is receiving data.
TTXX
LLNNKKGlows green when a twisted pair link is established.
FFAAGlows green when FiberAlert is enabled. Blinks green when
a FiberAlert situation occurs (i.e. the loss of one strand of fiber).
NOTE: FiberAlert is not available/applicable on single-strand fiber versions of Compact
Media Converters.
FFXX
LLNNKKGlows green when a fiber link is established.
RCV
XMT
MM850
100 Mbps
FX RCV
FX LNK
TX LNK
FA
724-746-5500
Compact
Media Converter