August 2005
LE1502A-R3
LE1502AE-R4
LE1508A
10 Mbps Economy Media Converters
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(724) 746-5500
(724) 746-5500
Economy BNC
Media Converter
Hardened BNC
Media Converter
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© Copyright 2003. Black Box Corporation. All rights reserved.
1000 PARK DRIVE • LAWRENCE, PA 15055-1018 • 724-746-5500 • FAX 724-746-0746
CUSTOMER Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX
SUPPORT
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
INFORMATION
Web site: www.blackbox.com
•
E-mail: [email protected]
BLACK BOX® 10Mbps Economy BNC Media Converters Installation & User Guide
Contacting Black Box Corporation
Please use these mailing address and phone and fax numbers:
Black Box Corporation
1000 Park Drive
Pittsburgh, PA 15055
Phone: (724) 746-5500
Fax: (724) 746-0746
E-mail: [email protected]
__________________________________________________________
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BLACK BOX® 10Mbps Economy BNC Media Converters Installation & User Guide
FEDERAL COMMUNICATIONS COMMISSION
AND
CANADIAN DEPARTMENT OF COMMUNICATIONS
RADIO FREQUENCY INTERFERENCE STATEMENTS
This equipment generates, uses, and can radiate radio frequency energy and if
not installed and used properly, that is, in strict accordance with the
manufacturer’s instructions, may cause interference to radio communication. It
has been tested and found to comply with the limits for a Class A computing
device in accordance with the specifications in Subpart B of Part 15 of FCC
rules, which are designed to provide reasonable protection against such
interference when the equipment is operated in a commercial environment.
Operation of this equipment in a residential area is likely to cause interference,
in which case the user at his own expense will be required to take whatever
measures may be necessary to correct the interference.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
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BLACK BOX® 10Mbps Economy BNC Media Converters Installation & User Guide
This digital apparatus does not exceed the Class A 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 la classe A prescrites dans le
Règlement sur le brouillage radioélectrique publié par le ministère des
Communications du Canada.
NORMAS OFICIALES MEXICANAS (NOM)
ELECTRICAL SAFETY STATEMENT
INSTRUCCIONES DE SEGURIDAD
1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato
eléctrico sea operado.
2. Las instrucciones de seguridad y operación deberan ser guardadas para referencia futura.
3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser
respetadas.
4. Todas las instrucciones de operación y uso deben ser seguidas.
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BLACK BOX® 10Mbps Economy BNC Media Converters Installation & User Guide
5.
El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca de la tina de baño,
lavabo, sótano mojado o cerca de una alberca, etc..
6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que sean
reconnendados por el fabricante.
7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea recommendado por el
fabricante.
8. Servicio—El usuario no debe intentar dar sercicio al equipo eléctrico más allá a lo descrito en
las instrucciones de operatión. Todo otro servicio deberá ser referido a personal de servicio
calificado.
9. El aparato eléctrico debe ser situado de tal mannera que su posición no interfiera su uso. La
colocación del aparato eléctrico sobre una cama, sofá, alfombra o superficie similar puede
bloquea la ventilación, no se debe colocar en libreros o gabinetes que impidan el flujo de aire
por los orificios de ventilación.
10. El equipo eléctrico deber ser situado fuera del alcance du fuentes de calor como radiadores,
registros de calor, estufas u otros aparatos (incluyendo amplificadores) que producen calor.
11. El aparato eléctrico deberá ser connectado una fuente de poder sólo del tipo descrito en el
instrucivo de operación, o como se indique en el aparato.
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BLACK BOX® 10Mbps Economy BNC Media Converters Installation & User Guide
12. Precaución debe ser tomada de mal manera que la tierra fisica y la polarización del equipo no
sea eliminada.
13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni
pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los
contactos y receptáculos donde salen del aparato.
14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las recommendaciones del
fabricante.
15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas de energia.
16. El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un largo
periodo de tiempo.
17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la
cubierta u orificios de ventilación.
18. Servicio por personal calificado deberá ser provisto cuando:
A: El cable de poder o el contacto ha sido dañado; u
B: Objectos han caído o líquido ha sido derramado dentro del aparato; o
C: El aparato ha sido expuesto a la lluvia; o
D: El aparato parece no operar normalmente o muestra un cambio en su desempeño;;o
E: El aparato ha sido tirado o su cubierta ha sido dañada.
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BLACK BOX® 10Mbps Economy BNC Media Converters Installation & User Guide
Certification Notice for
Equipment Used in Canada
The Canadian Department of Communications label identifies certified equipment. This
certification means that the equipment meets certain telecommunications-network
protective, operation, and safety requirements. The Department does not guarantee the
equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be
connected to the facilities of the local telecommunications company. The equipment
must also be installed using an acceptable method of connection. In some cases, the
company’s inside wiring associated with a single-line individual service may be extended
by means of a certified connector assembly (extension cord). The customer should be
aware that compliance with the above conditions may not prevent degradation of service
in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance
facility—in this case, your supplier. Any repairs or alterations made by the user to this
equipment, or equipment malfunctions, may give the telecommunications company cause
to request the user to disconnect the equipment.
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BLACK BOX® 10Mbps Economy BNC Media Converters Installation & User Guide
Users should ensure for their own protection that the electrical ground connections of the
power utility, telephone lines, and internal metallic water pipe system, if present, are
connected together. This precaution may be particularly important in rural areas.
CAUTION:
Users should not attempt to make such connections themselves, but
should contact the appropriate electric inspection authority, or
electrician, as appropriate.
The LOAD NUMBER (LN) assigned to each terminal device denotes the percentage of
the total load to be connected to a telephone loop which is used by the device, to prevent
overloading. The termination on a loop may consist of any combination of devices,
subject only to the requirement that the total of the load numbers of all the devices does
not exceed 100.
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BLACK BOX® 10Mbps Economy BNC Media Converters Installation & User Guide
TABLE OF CONTENTS Page
1.1
1.2 Summary of models and descriptions:.................................................... 8
2. INTRODUCTION ..................................................................................... 9
TECHNICAL SPECIFICATIONS ...................................................... 1
2.1
2.2
2.3
2.4
Inspecting the Package and the Product............................................... 9
Product Description ........................................................................... 10
Features and Benefits......................................................................... 16
Applications....................................................................................... 18
INSTALLATION................................................................................. 20
Locating the Media Conv. Unit ......................................................... 20
Rack Mount of LE1502A-R3 and LE1508 hardened M.C’s ............ 21
Rack Mount Tray, Model with Power Supply included ................... 23
Calculating Overall Cable Segment Distance.................................... 25
Connecting Ethernet Media ............................................................... 28
3.0
3.1
3.2
3.3
3.4
3.5
3.5.1
3.5.2
Connecting Twisted Pair (RJ-45 ports)...................................... 28
Connecting ThinNet (10BASE2)............................................... 30
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4.0
OPERATION ....................................................................................... 31
Power Supply Types for LE1502A-R3 and LE1508 models............. 31
Powering the LE1508Dxx (DC internal) with 12V, 24V or –48V DC35
LE1508Dxx, DC-powered, -48VDC, 24VDC and 12VDC Instal.... 37
LEDs, dual for front-panel and side-panel (regular and hardened) .. 39
BNC port, Internal Termination Switch (for regular and hardened). 40
Up-Link (Cross-over) Switch ............................................................ 41
TROUBLESHOOTING ...................................................................... 42
Before Calling for Assistance ............................................................ 42
When Calling for Assistance ............................................................. 44
Shipping and Packaging Information................................................. 45
4.1
4.2
4.3
4.4
4.5
4.6
5.0
5.1
5.2
5.3
09/05- Changed the universal 100-240V AC power supply option model no from R3 to R4.
Black Box reserves the right to change specifications, performance and models without notice.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
1.1
TECHNICAL SPECIFICATIONS
Models LE1502A-R3 and hardened LE1508A, standard TP and BNC media
Performance:
Data Rate: 10 Mbps (IEEE 802.3), half duplex mode
Network Standards:
Ethernet: IEEE 802.3, 10BASE2, 10BASE-T
(Black Box Media Converters are physical layer standard Ethernet products,
and operate independently of all software.)
Number of Media Converters in series:
Experience shows that up to two BNC units can be used in series between
repeaters. For 3 or more in series, noise build-up will typically preclude
proper operation. See also Section 3.4, Calculating Segment Distances.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
Maximum Standard Ethernet Segment Lengths:
10BASE-T (twisted pair):
10BASE2 ThinNet (BNC):
100 m (328 ft)
185 m (607 ft)
Note: Black Box Media Converters DO NOT support full length Ethernet segments. See
Section 3.2 of this manual for media lengths and segment distance calculations.
Operating Environment:
Ambient Temperature:
(0ºC to 40ºC) LE1502A-R3, LE1502AE-R4
(0ºC to 50ºC) LE1502A, LE1502AE with “H” power supply
(-40ºC to 55ºC) LE1508A, LE1508AE(incl “H” pwr supl.)
(-40ºC to 75ºC) LE1508D12 (12VDC),
LE1508D24 (24VDC), LE1508D48 (-48VDC)
Note: 0ºC=32ºF, 40ºC=104ºF, 50ºC=122ºF, 55ºC=131ºF, 75ºC=167ºF, -40ºC=-40ºF.
Storage Temperature: -40ºC to 85ºC
Ambient Relative Humidity: 5% to 95% (non-condensing)
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
Power Supply ( AC External):
Power input 12V DC jack is 2.5mm center +ve jack, with 6ft. cord
120V AC at 60 Hz, for “A” North American models
230V AC at 50 Hz, IEC built-in, for “AE” int’l
100-240V AC at 50-60Hz, for “H” high temp.
100-240V AC at 50-60Hz, for “-Hi” w/ adapter kit
DC to unit: 12V DC, 2.5mm jack, center +ve, 6ft.
cord
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
Power Supply ( DC Internal):
Model LE1508D12
12V DC internal (range of 8 to 15V DC), built-in terminal
block for +, -, ground. The 12V DC jack is also present.
Model LE1508D24
24V DC internal (range of 18 to 36V DC), built-in terminal
block for +, -, ground. The 12V DC jack is also present
Model LE1508D48
-48V DC internal (range of 36 to 70V DC), built-in terminal
block for +, -, ground. The 12V DC jack is also present.
Power Consumption: 3 watts typical and 5 watts max. for all models
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
Connectors, for Media:
RJ-45 Port: Modular 8-Pin female, with “cross-over” up-link switch
BNC Port: Standard BNC connector, RG-58 ThinNet with internal term sw.
Packaging:
Enclosure: Rugged sheet metal (Steel).
Dimensions, Media Converter unit: Height x Width x Depth
LE1502-all and hardened LE1508-all: 3.5 in H x 3.0 in W x 1.0 in D (8.9
cm x 7.6 cm x 2.5 cm)
Weight: LE1502-all and hardened LE1508-all: 7.9 oz. (225g);
power supply, regular office temp : 5.8 oz (165g)
power supply, hardened AC models: 3.8 oz 110g)
Cooling Method: Convection, plus case is used as a heat sink on hardened models
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Media Converter LED Indicators:
LED
PWR
Link
LE1502A-R3
LE1508
Description
unit
TP
unit
Steady ON when power is applied
TP
Steady ON when proper link is
established at both ends of the segment.*
RX/A
TP, BNC
TP
TP, BNC
TP.
Blinking indicates activity, port is receiving
packets. (Steady ON or OFF=no RX activity)
POL
Indicates the unit has detected a TP receive
wire-pair signal inversion (polarity).
COL*
JAB*
.
TP, BNC. TP, BNC
unit unit
Indicates unit is simultaneously transmitting
and receiving data from the cables.
Indicates jabber (illegal packet length fault)
condition. when lit, Segment is partitioned.
.NOTE:*COL and JAB LEDs are indicators applicable to standard Ethernet collision
domains with half-duplex operation.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
Metal Mounting clips : included
Agency Approvals:
UL Listed (UL 1950 and cUL) and CE Certified.
Emissions: Meets FCC Part 15 Class A, CE
Warranty: Three years, return to factory
Made in USA
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
1.2 Summary of models and descriptions:
LE1502A-R3 = TP to BNC, half-duplex, 115V 60Hz AC power supply
LE1502AE-R3 = TP to BNC, half-duplex, 230V 50Hz AC power supply
LE1508A = Hardened unit, TP to BNC, half-duplex, hardened (to 55`C) ext’l AC power supply
LE1508AE = Hardened unit, TP to BNC, half-duplex, hardened (to 55`C) ext’l AC power supply
with adapter kit for international AC 230V50Hz power outlets.
LE1508D12 = Hardened unit (-40 to 75`C), TP to BNC, half-duplex, built-in 12VDC power supply
LE1508D24 = Hardened unit (-40 to 75`C), TP to BNC, half-duplex, built-in 24VDC power supply
LE1508D48 = Hardened unit (-40 to 75`C), TP to BNC, half-duplex, built-in -48VDC power supply
LE1505-RACK = 19” Rack-mount tray for Economy Media Converters, up to 16 units
See Section 3.2
LE1505P-RACK = 19” Rack-mount tray for Economy Media Converters, with power supply
See Section 3.3
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
2.0
INTRODUCTION
This section describes the, LE1502A-R3 regular and LE1508A hardened
media converter models, including appearance, features and typical applications.
2.1
Inspecting the Package and the Product
Examine the shipping container for obvious damage prior to installing this
product; notify the carrier of any damage which you believe occurred during shipment or
delivery. Inspect the contents of this package for any signs of damage and ensure that the
items listed below are included.
This package should contain:
1
10 Mbps BNC Media Converter Unit
1
External Power Supply (except for internal DC power supply
Metal mounting clips and screws, 2 each unit
models) 1 set
1
1
Velcro® Tape section, approximately 3 inches in length
User Guide, i.e., this manual
(continued next page)
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
Remove the Black Box 10Mb BNC Media Converter from the shipping
container. Be sure to keep the shipping container should you need to ship the unit at a
later date.
In the event there are items missing or damaged contact your supplier. If you
need to return the unit use the original shipping container. Refer to Section 5,
Troubleshooting, for specific return procedures.
2.2
Product Description
The BLACK BOX,® 10Mb
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LE1502A-R3 regular and LE1508A
hardened Media Converters have rugged
metal packaging, a selection of extended
temperature models, choice of AC and DC
power types, ease-of-use features, and are
energy-efficient. All models offer a
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graceful way to convert and transmit data between twisted pair (RJ-45) and thin coaxial
(BNC) network cables for media flexibility in new or expanded 10Mb Ethernet networks.
They provide standard collision detection and indication, and comply with the Ethernet
V1.0 / 2.0 specifications and the IEEE
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is only 3 watts.
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The LE1502A-R3 regular-
package units are for office and wiring
closet environments and use an external
AC power supply for either 0° to 40°C or
the more stressful industrial 0° to 50°C
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ambient temperature. A rugged metal case with convection cooling is featured. The units
can be mounted securely on a closet wall or the side of cabinet, or by using the metal
mounting clips
included.
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dust, dirt, moisture, smoke and insects, and are plenum rated. Choices of models for
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
external AC or internal DC power are available. Ambient temperature rating is up to –
40°C to +75°C depending on the power source used. The LE1508’s are suitable for
temperature un-controlled outdoor applications. Mounting options include panel-
mounting or rack-mount tray.
The LE1502A-R3 office series offer a graceful way to convert and transmit
data among twisted pair, and thin coaxial network cabling environments. LE1502A-R3
Media Converters cost significantly less than full repeaters and can be used whenever
media distance limitations will not be exceeded in the segment. All units are compatible
with Ethernet V 1.0 / 2.0 specifications and comply with IEEE 802.3 standards.
Black Box LE1502A-R3s 10Mb BNC Media Converter’s, are designed for quick and
easy installation even in very tight spaces. Media cables are easily attached to the
corresponding Media Converter. Because of their compact size, Black Box Media
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
Converters can be Velcro®-mounted on an office wall or the side of a desk or cabinet.
Mounting options include panel-mounting, and rack-mount tray ( LH1505/LH1505P-
RACK, see Section 3.3) that neatly holds the units and power supplies is available.
The standard “1-per-unit” external power supply plugs into a nearby AC wall
socket or power strip. The LE1508 hardened media converter is also available with
extended temperature power supply AC/DC (External/Internal) to qualify for temperature
un-controlled and industrial applications. Each converter features two full sets of LEDs
that convey essential diagnostic and status information at any angle. See Section 4.1 and
4.4, for power supply and LED function specifications.
All of the Black Box LE1502’s and LE1508’s Media Converters comply with
the IEEE 802.3 10BASE-T specification for 10 Mb/sec traffic via shielded (STP) or
unshielded twisted pair (UTP) segments. They feature an up-link or cross-over switch to
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
eliminate the need for a special cross-over cable when connecting to a hub or
concentrator and also an ( ∝ - 50Ω ) internal termination switch to control the BNC port
by eliminating the TEE – Connector otherwise required at BNC taps. The BNC port
connector complies with IEEE 802.3 10BASE2 specifications.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
2.3 Features and Benefits
„
„
„
Reduces Network Costs
Black Box Media Converters offer the ideal solution to efficiently and
inexpensively connect Twisted Pair with ThinNet media within an
expanding Ethernet network where full repeaters are not required.
No added Repeater Hop Count
Media Converters do not add signal timing delays associated with full
repeaters, and can be installed without increasing the repeater hop count
of an existing network.
Two sets of LEDs for viewing status from any angle.
Each of the LE1502’s and LE1508’s Media Converter is equipped with
two sets (front and side) of LEDs to provide status information when
viewed at any angle or mounting arrangement, rack-mount (LE1505-
RACK) or wall-mount.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
„
Rugged metal case, industrial grade
The LE1502’s and LE1508’s Media Converters have a robust design and
are packaged in a rugged metal enclosures to ensure durability even when
placed in extended temperature; e.g. industrial or outdoor applications.
„
AC and DC Power Supplies with extended temperature ratings
LE1508 Hardened Media Converters are designed for use in temperature
un-controlled applications, and are available with variety of ratings,
external AC and internal DC power supplies. See Specs, Section 1.1 for
details.
„
Compact design, mount anywhere
Featuring a compact steel case with an external AC power supply, Black
Box LE1502A-R3 and LE1508 Hardened Media Converters can be
installed in minimal space in rack mount cabinets like LE1505-RACK, on
table-tops or wall-mounted.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
2.4
Applications
The primary function of a 10Mb Ethernet Media Converter is to permit two
different 10Mb media types to coexist inexpensively within the same network by
allowing data to be transmitted and received between different media types.
Black Box LE1502A-R3 Economy Media Converters are typically used where
new 10BASE-T networking equipment is being installed and connected to existing BNC
Ethernet cabling. Black Box LE1502A-R3 Economy Media Converters have an external
AC power supply and internal DC Power supply, enabling them to be used to convert
signals among media that does not have a power source as part of the cabling system,
such as twisted pair and BNC. The wide variety of options of AC and DC power supply
qualify the LE1502A-R3 regular and LE1508 hardened series for use in office locations
as well as industrial and even outdoor applications.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
In this application, in a Industrial environment where extended temp. supported units is a
requirement, the existing BNC network needs to connect with RJ-45 ports in a hub /
switch to expand the existing application. The rugged Black Box LE1508’s with various
extended temperature features easily qualifies to be deployed in this requirement and
smoothly serve the needs by changing BNC media to RJ-45.
10Base-T Ethernet Segment
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
The LE1502A-R3’s and LE1508’s 10Mb Economy Media Converter connect twisted-
pair cabling to existing BNC cabling. Their operation is half-duplex in all situations. See
Section 3.5 for calculations of cable distance limits.
3.0
INSTALLATION
This section describes the installation of the Black Box LE1502A-R3’s and
LE1508’s Economy Media Converters, including location, segment distance calculation
and media connection.
3.1
Locating the Media Conv. Unit
The compact and lightweight design of
the Black Box Media Converter allows it to be
easily installed in almost any location. A Velcro
strip is included for mounting the unit on a
Secure attachment of mounting
clips for wall mounting
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
vertical surface such as a wall or cabinet, or for securing the unit on a table-top or shelf.
Alternatively, metal mounting clips and screws are included for a rugged and secure
mounting in any orientation.
Installation of Black Box BNC Media Converters is a simple procedure. The installation
location is dependent upon the physical layout of the Ethernet network and associated
cabling. Make sure the unit is installed in a location that is easily accessible to an AC
power outlet or power strip, and where convection cooling is not inhibited. The green
Power (PWR) LED must turn ON, when power is applied through the internal DC input
12V, 24V or –48V DC (hardened models) or external AC through the 12V DC jack.
3.2
Rack Mount of LE1502A-R3 and LE1508 M.C’s
For 19” rack-mounting of Black Box BNC Media Converters, a rack-mount tray is
available, LE1505-RACK. The Media Converter units are mounted with their RJ-45 port
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
and DC power jack in the back, with either fiber or BNC cable in the front. Any mix of
the Economy BNC or fiber-type Media Converters may be placed on a tray, up to a
maximum of 16 units. (The mounting spaces of the LH1505-RACK are specific to the
Economy M.C. series, and do not permit other models).
A typical installation of the model LH1505-RACK, 19” rack-mount tray will hold a few
(often three to eight) economy 10Mb BNC Media Converters, with their power supplies
plugged into power strips (not included) in the rear area of the tray. Metal mounting
screws in the bottom-front hold the regular and hardened Media Converters firmly in
place. The beveled-top edge of the units permits the LEDs of each unit to be viewed for
operational status, even when the units are very close together.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
3.3
Rack Mount Tray, Model with Power Supply included
The LH1505P -RACK is another option available for Rack Mounting the mix-
match of 10Mbps and 100Mbps Economy & Crossover Media Converters together in 19”
rack-mount tray. The LH1505P-RACK model comes with built-in common universal AC
power supply rated at 40 watts at 50C ambient, 9VDC output, and supporting up to 10
MC units. (Six tray positions for MC’s are not wired for power). Typically, 3 to 8 MC
units are in use with a LH1505P-RACK, with expansion space left available.
The LH1505P-RACK holds up to 10 mix-match of 10Mbps and 100Mbps
Black Box Economy & Crossover Media Converters. (The MC mounting spaces of the
LH1505P-RACK are specific to the 10Mb “Economy”- series and the 100Mbps
“Crossover” series, and do not permit other models or other sizes to be put in the tray).
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
The side-view picture
shown here is an example of an
installation of the model LH1505P-
RACK, 19” rack-mount tray, holding
a few 10Mbps Economy Media
Converters, each with their power
input plugged into the built-in
common AC power supply in the
rear area of the tray. (PS units that
come with the MC’s are not used)..
Metal mounting screws in
the bottom-front hold each of the
media converters secure in the tray, separately removable for service. The dual LEDs
permit viewing operating status of the Media Converters from any angle.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
3.4
Calculating Overall Cable Segment Distance
Important Note: Special consideration must be given to maximum cable
segment lengths on each side of a 10 Mbps Economy Media Converter. It is
recommended that IEEE 802.3 specifications for overall maximum segment distances be
adhered to in order to maintain optimum network performance. (See also Technical
Specs, Maximum Standard Ethernet Segment Distances, Section 1.1 of this manual.)
When installing the 10 Mbps Economy Media Converter, it is important to
consider the combined overall segment length of both of the attached media types. The
overall segment length is calculated by adding together the segment lengths on both sides
of the 10 Mbps Economy Media Converters. Cable segment length on each side of the
Media Converter is measured as a percentage of the maximum allowable standard media
distance for the given media type. The percentages, when added together, must not
exceed 100%.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
Media Distance Formula for 10 Mbps Economy Media Converters:
X% + Y% < 100%
Where X =
The segment distance on one side of the Media Converter divided by
the Standard Maximum Media Distance for that media type, x 100%.
Where Y = The segment length on the other side of the Media Converter divided by the
Standard Maximum Media Distance for that media cabling type, x 100%
Notes: 1) Media
distance calculation is
Twisted Pair
A
P
O
C
O
J
A
C
Li
P
R
R
the same for both half
and full duplex media
converters. 2) Single-
mode fiber distances
more than about 4Km
will exceed the 10 Mbps
collision domain limits,
and should be operated
at either full-duplex or
with light traffic.
COA
TWISTED
(10BASE-T)
E
X
XT
I
U
P
BLACK
(724) 746-5500
P
J
P
W
CA
Economy BNC
Media Converter
1
2
V
D
C
ThinNet-
(10BASE-2)
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
A Distance Calculation Example:
Connectivity between ThinNet and TP Ethernet Media.
In the figure shown above, the length of Segment X is 72m (216 ft). This is
39% of the maximum allowable distance for 10BASE2 media (185 m) [72/185 x 100% =
39%]. The length of Segment Y is 55m (165 ft). This is 55% of the maximum allowable
distance for UTP 10BASE-T media (100 m) [55/100 x 100% = 55%]. The total of the
two percentages (39% + 55%) is 94%, which is allowable.
Note 1: Where more than one media converter is used in one
segment run, the percentages for all of the cabling lengths in the run
must be added together and must not exceed 100%.
Note 2: If the total segment distance calculation result is greater than
100%, consider using a Repeater so that each cable type can be 100%
of its maximum allowed length.
Note 3: The maximum number of 10 Mbps Media Converters that
can be used in series is two. The cumulative noise from three or
more units together causes packet alignment errors, dropped packets.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
3.5
Connecting Ethernet Media
It is recommended that both of the media (TP and BNC) be connected with
power off so that both ports are connected when power is applied to the logic in the
electronics. If power is on, connect the Twisted Pair media before the BNC media. If
BNC is connected before TP with power on, it can create a Jabber condition, in which
case the JAB LED will come on and no packets will be processed.
See Sections 4.4 for details of the LEDs on the media converter models.
3.5.1
Connecting Twisted Pair (RJ-45 ports)
The following procedure describes how to connect a 10BASE-T twisted pair
segment to the RJ-45 port on the Black Box Media Converters. The procedure is the
same for both unshielded and shielded twisted pair segments.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
1.
Using standard 10BASE-T media, insert either end of the cable with an RJ-45
plug into the RJ-45 connector of the Black Box Media Converter.
2.
Connect the other end of the cable to the corresponding device.
Use the LINK LED to ensure proper connectivity by noting that the LED will be
illuminated when the units are powered and proper connections established. If the LINK
LED is not illuminated, change the setting of the up-link switch (See Section 4.6 for up-
link switch information.) If this does not help, ensure that the cable is connected
properly at both ends and is not defective.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
3.5.2
Connecting ThinNet (10BASE2)
Note: connect TP media before connecting BNC media if power is on in the
Media Converter unit. See Section 3.5 Connecting Media above.
Connect the ThinNet coax cable to the BNC connector on the Media Converter
in the same manner as is done for any standard BNC connection. Be sure that the BNC
segment is properly terminated using a standard “T” connector.
The LE1502A-R3 regular and LE1508A hardened BNC media converters are
also equipped with “Terminator Switch” (∝-50Ω), which can be used to eliminate the
standard “T” connector by moving the “Terminator Switch” to the 50Ω position. See
Section 4.5 BNC port, Internal Termination Switch for details.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
4.0
OPERATION
This section describes the operation of the Black Box LE1502A-R3 regular and
LE1508 hardened 10Mb BNC Media Converters , including power supply requirements,
up-link switch functionality, and a description of all LEDs.
4.1
Power Supply Types for LE1502A-R3 and LE1508 models
LE1502A
LE1502AE
LE1508A
LE1508AE-R4
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
OFFICE INDUSTRIAL
Black Box BNC Media Converters are power-efficient and can work with an external
AC power supply. Black Box BNC Media Converters require a nominal 12VDC input.
The “A” regular PS version is used for light duty offices, whereas the extended
temperature LE1508 version (-40° to 55°C with AC power) is used for more heavy duty
and industrial applications.
The 12V DC power input jack has a plug of 2.5mm, center +ve , with 6 ft. cord. All the
AC power supply information details are provided in Technical Specifications Sec. 1.1.
The LE1508 Hardened media converters are specially designed to provide
reliable operation, withstand higher temperature environment and provide the various
choice to the user to deploy in uncontrolled temperature environment. The extended
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
temp. AC version of LE1508 uses the external power supply with (100-240v) AC range
at 50-60 Hz.
12VDC
24VDC
-48VDC
The Internal 12V DC (8 – 15V
DC) has a built-in terminal block for +, -, ground. The 12V DC jack is also present.
Detail information about the 12 VDC, the 24V DC and the –48V DC is provided in the
Technical Specifications Section 1.1.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
The various models of power type and extended ambient temperature AC power supplies
are optional for use as spares and in special situations.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
4.2 Powering the LE1508Dxx (DC internal) with 12V, 24V or –48V DC
(LE1508D12 for 12VDC, LE1508D24 for 24VDC, LE1508D48 for 48VDC)
Each Black Box LE15Dxx is equipped with an internal DC power supply, and
has built-in screw terminals for secure attachment of the power leads. The three models
support a range of power input types. The three model
choices are for use with 12VDC, 24VDC or -48VDC
power. DC power input is often be chosen for high-
availability in heavy duty applications.
The extended temperature capability of the
DC-powered LE1508Dxx’s can go outdoors, rated at –
40˚C to +75˚C. The DC jack is also present and can
optionally be used with an external AC power supply.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
DC Power Terminals: “+”, “-”, floating
GND: Terminal for “earth” or ground wire connection to the LE15XX chassis
Input Voltage: 8 - 15V DC (12V DC)
18 – 26V DC (24V DC)
30 – 60V DC (-48V DC)
Input current: 0.8 amp max.(9V DC)
0.4 amp max.(24V DC)
0.2 amp max.(-48V DC)
Power Consumption: 3 watts typical, 3.5 watts max.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
4.3
LE1508Dxx, DC-powered, -48VDC, 24VDC and 12VDC Install
This section describes the proper connection of the -48VDC leads (or 24VDC,
12VDC leads) to the DC power terminal block on the Black Box LE15Dxx hardened
media converter (as shown in Figure 4.2 above). The DC terminal block on the Black
Box LE1508Dxx models is located on the left side of the unit and is equipped with three
(3) screw-down lead posts. The power terminals are identified as positive (+) and
negative (-), and they are floating inside the unit so that either of the terminals may be
grounded by the user if desired. The chassis is “earth” or ground (GND).
The connection procedure is straightforward. Simply insert the DC leads to the
LE1508’s power terminals, positive (+) and negative (-) screws. The use of Ground
(GND) is optional; it connects to the LE1508 chassis. Ensure that each lead is securely
tightened from the top, as shown here.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
NOTE: Always use a voltmeter to measure the voltage of the incoming power supply
and figure out the +ve potential lead or -ve potential lead. The more +ve potential lead
will connect to the post labeled “+ve” and the rest to the “-ve”.
The GND can be hooked up first.
When power is applied, the green PWR LED
will illuminate.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
4.4
LED
LEDs, dual for front-panel and side-panel
Description
PWR
Illuminates GREEN to indicate power applied.
LINK/L (TP) Illuminates GREEN, to indicate proper connectivity on the 10BASE-T
network segment. LINK will turn off in the event connectivity is lost between the ends
of the twisted pair segment or a loss of power occurs in the unit or remote device.
RX/A
Blinking GREEN indicates data is being received, receive activity.
(Steady ON or steady OFF indicates no receive activity).
POL/PO (TP) Illuminates AMBER to indicate inverse polarity detected.
JAB
Illuminates AMBER to indicate jabber (illegal packet length). See also
Section 3.5 Connecting Media instructions on attaching TP before BNC.
COL/C (per port) Illuminates AMBER to indicate a collision on the segment.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
4.5 BNC port, Internal Termination Switch
An internal termination switch (∝ - 50Ω) is provided on the end near the BNC port. The
BNC port is specially equipped with an internal
termination switch that eliminates the need to use a "tee"
connector when the BNC cable is ending at the
RJ45
LE1502A-R3. When the switch is in the “50Ω”
50Ω
position, the connection is internally terminated. When
U
pl
switched to the “∝” position, external termination (using
∝
a “tee” connector, not supplied) is required. Some
applications may require a "tee" connector, used as a
tap, to allow the 10BASE2 coax segment to continue on
past the LE1502A-R3 and LE1508’s port connection.
BNC
End view of BNC M.C.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
4.6
Up-Link (Cross-over)
Switch
The LE1502A-R3 and LE1508’s Media
Converters are equipped with an Up-Link
slide switch. When set to the UP position
(X), the Media Converter is wired with
cross-over functionality for direct up-link to
a network hub, switch or concentrator.
When set to the DOWN position (=), the
10Mb BNC Media Converter is wired for
normal twisted-pair connection to a user
RJ45
up-link (X)
=
=
user device (=)
P
W
U
BNC
End view, BNC M.C.
node device. Some Ethernet Switch ports may be of either polarity, and this feature is
most convenient with such switches.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
5.0
TROUBLESHOOTING
All Black Box Ethernet products are designed to provide reliability and
consistently high performance in all network environments. The installation of 10 Mbps
Economy Media Converters is a simple procedure (see Section 3.0, INSTALLATION);
their operation is described in Section 4.0, OPERATION.
Should problems develop during installation or operation, this section should
help to locate, identify and correct such problems. Please follow the suggestions listed
below prior to contacting your supplier. However, if you are unsure of any procedure
described in this section, or if the Economy BNC Media Converter is not operating as
expected, do not attempt to repair or alter the unit. Contact Black Box for assistance.
5.1
1.
Before Calling for Assistance
If difficulty is encountered when installing or operating the Economy
Media Converter, refer back to Section 3.0, Installation and Section 4.0, Operation.
Check to make sure that the various other components of the network are operable.
2.
Check the cables and connectors to ensure that they have been properly
connected, and the cables/wires have not been crimped or in some way impaired during
42
BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
installation. (About 90% of network downtime can be attributed to wiring and connector
problems.)
3.
Make sure that the external DC power supply is properly attached to the
unit, that it is of the proper type, and that it is plugged into a functioning electrical outlet.
Use the PWR LEDs to verify the unit is receiving proper power.
4.
If the problem is isolated to a network device other than the Economy
Media Converter, it is recommended that the problem device be replaced with a known
good device. Verify whether or not the problem is corrected. If not, go to Step 5 below.
If the problem is corrected, the Media Converter and its associated cables are functioning
properly.
5.
If the problem continues after completing Step 4 above, contact Black Box.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
5.2
When Calling for Assistance
If you determine that your Hardened Ethernet Switch is malfunctioning, do
not attempt to alter or repair the unit. It contains no user-serviceable parts. Contact
Black Box by phone at (724) 746-5500 or by other appropriate method .
Before you do, make a record of the history of the problem. Black Box will
be able to provide more efficient and accurate assistance if you have a complete
description, including:
•
•
•
•
the nature and duration of the problem.
when the problem occurs.
the components involved in the problem.
any particular application that, when used, appears to create the
problem or make it worse.
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BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide
5.3
Shipping and Packaging Information
Should you need to ship the unit back to Black Box Corporation, please follow
these instructions:
1. Package the unit carefully. It is recommended that you use the original
container if available. Units should be wrapped in a "bubble-wrap" plastic
sheet or bag for shipping protection. (You may retain all connectors and this
Installation Guide.)
CAUTION : Do not pack the unit in Styrofoam "popcorn" type packing
material. This material may cause electro-static shock damage to the unit.
2. Clearly mark the Return Material Authorization (RMA) number on the
outside of the shipping container.
3. Black Box Corporation is not responsible for your return shipping charges.
4. Ship the package to:
Black Box Corporation
1000 Park Drive
Lawrence, PA 15055
Phone: (724) 746-5500
Fax:
(724) 746-0746
45
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