Black Box Network Hardware 10 mbps economy media converters User Manual

August 2005  
LE1502A-R3  
LE1502AE-R4  
LE1508A  
10 Mbps Economy Media Converters  
L
A
P
O
L
C
P
W
R
X
JA  
B
C
O
L
C
O
R
Link  
L
LE1508AE  
A
P
O
L
C
EX  
T
INT  
P
W
TWISTED PAIR  
COAX  
R
X
JA  
B
C
O
L
C
O
R
Link  
BLACK BOX  
EX  
T
INT  
U
P
TWISTED PAIR  
COAX  
LI  
BLACK BOX  
U
P
LI  
(724) 746-5500  
(724) 746-5500  
Economy BNC  
Media Converter  
Hardened BNC  
Media Converter  
12  
V
D
C
.1  
A
12  
V
D
C
.1  
A
© 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  
 
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  
__________________________________________________________  
ii  
 
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.  
iii  
 
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.  
iv  
 
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.  
v
 
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.  
vi  
 
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.  
vii  
 
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.  
viii  
 
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  
ix  
 
BLACK BOX® 10Mbps Economy BNC Media Converters Installation & User Guide  
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.  
x
 
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.  
1
 
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)  
2
 
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  
3
 
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  
4
 
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  
5
 
BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide  
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.  
6
 
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  
7
 
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  
8
 
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)  
9
 
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  
A
L
P
O
L
C
O
C
JA  
B
C
O
P
wr  
Li  
nk  
R
R
COAX  
TWISTED PAIR  
E
X
XT  
=IN  
T
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  
U
P
LI  
BLACK BOX  
(724) 746-5500  
P
O
JA  
B
P
W
R
Economy BNC  
Media Converter  
CA  
12  
V
D
C
.1  
A
10  
 
BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide  
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  
A
L
802.3 standards. Power consumed in use  
is only 3 watts.  
P
O
L
C
C
O
JA  
B
Li  
nk  
P
wr  
COL  
R
R
COAX  
TWISTED PAIR  
E
X
T
IN  
T
U
P
LI  
BLACK BOX  
Black Box LE1508 shown ->  
X
=
(724) 746-5500  
POL  
JAB  
P
W
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  
CA  
Hardened BNC  
L
Media Converter  
12  
V
D
C
.1  
A
11  
 
BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide  
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.  
A
P
O
Twisted Pair  
C
O
J
A
C
Li  
P
R
R
The LE1508  
hardened unit features  
a sealed metal case  
COA  
TWISTED  
(10BASE-T)  
E
X
XT  
I
U
P
BLACK  
(724) 746-5500  
P
J
P
W
which is also used as a  
heat sink. No air flow  
is required for cooling,  
so the LE1508’s resist  
CA  
Economy BNC  
Media Converter  
1
2
V
D
C
ThinNet-  
(10BASE-2)  
dust, dirt, moisture, smoke and insects, and are plenum rated. Choices of models for  
12  
 
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  
13  
 
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  
14  
 
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 ( - 50) 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.  
15  
 
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.  
16  
 
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.  
17  
 
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.  
18  
 
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  
P
Li  
nk  
R
X\  
A
R
X/  
A
Li  
nk  
A
C
FIBER  
TWISTED  
Li  
UP  
BEconomyLE1  
Media Converter  
R
X\  
A
Li  
R
9
T
V
D
C
.3  
Existing ThinNet (10BASE2) backbone  
1
3
5
6
7
8
9
10  
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
19  
20  
21  
22  
2
3
2
4
19  
 
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  
20  
 
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  
21  
 
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.  
22  
 
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).  
23  
 
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.  
24  
 
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%.  
25  
 
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)  
26  
 
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.  
27  
 
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.  
28  
 
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.  
29  
 
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” (-50), which can be used to eliminate the  
standard “T” connector by moving the “Terminator Switch” to the 50position. See  
Section 4.5 BNC port, Internal Termination Switch for details.  
30  
 
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  
31  
 
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  
32  
 
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.  
33  
 
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.  
34  
 
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.  
35  
 
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.  
36  
 
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.  
37  
 
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.  
38  
 
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.  
39  
 
BLACK BOX® 10Mb Economy BNC Media Converters Installation & User Guide  
4.5 BNC port, Internal Termination Switch  
An internal termination switch (- 50) 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 “50”  
50  
position, the connection is internally terminated. When  
U
pl  
in  
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.  
40  
 
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
R
U
pl  
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.  
41  
 
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.  
43  
 
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.  
44  
 
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  
 

Belkin Switch F1DP108Gea User Manual
BenQ Camcorder DC S30 User Manual
Binatone Telephone XDC1520 User Manual
Black Box Cable Box AC211A R2 User Manual
Blue Wave Boats Boat 2200 Pure Bay User Manual
Bosch Appliances Security Camera REG D1 User Manual
Bowers Wilkins Speaker ASW 650 User Manual
BridgeWave Network Router AR60X User Manual
Carson Stereo Amplifier SA 500 01 14V User Manual
Cateye Bicycle Accessories HL RC220 User Manual