Black Box LHC201A User manual

BL A C K B O X®
Link a 10/100BASE-TX segment to a 100BASE-FX
segment on your network, and extend the 328 foot
(100 m) distance limit of copper-based Ethernet.
Pure Networking™Fast Ethernet Media Converters
LHC201A
LHC202A
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S.
call 724-746-5500) • FREE technical support 24 hours a day, 7 days
a week: Call 724-746-5500 or fax [phone] • Mailing address:
Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: [email protected]
Customer
Support
Information

724-746-5500 | blackbox.com
Page 2
Trademarks Used in this Manual
Trademarks Used in this Manual
Black Box and the Double Diamond logo are registered trademarks of
BB Technologies, Inc.
Any other trademarks mentioned in this manual are acknowledged to be
the property of the trademark owners.

724-746-5500 | blackbox.com Page 3
FCC and IC RFI Statements
FEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY
CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS
Class B Digital Device. This equipment has been tested and found to comply with
the limits for a Class B computing device pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful
interference in a residential installation. However, there is no guarantee that
interference will not occur in a particular installation. This equipment generates,
uses, and can radiate radio frequency energy, and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. If this equipment does cause harmful interference to radio or
telephone reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
• Consult an experienced radio/TV technician for help.
Caution:
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
To meet FCC requirements, shielded cables and power cords are required to
connect this device to a personal computer or other Class B certified device.
This digital apparatus does not exceed the Class B limits for radio noise emission
from digital apparatus set out in the Radio Interference Regulation of Industry
Canada.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les
limites applicables aux appareils numériques de classe B prescrites dans le
Règlement sur le brouillage radioélectrique publié par Industrie Canada.

724-746-5500 | blackbox.com
Page 4
NOM Statement
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 deberán 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.
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 recomendados por el fabricante.
7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea
recomendado por el fabricante.
8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá
a lo descrito en las instrucciones de operación. Todo otro servicio deberá ser
referido a personal de servicio calificado.
9. El aparato eléctrico debe ser situado de tal manera 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 de fuentes de calor
como radiadores, registros de calor, estufas u otros aparatos (incluyendo
amplificadores) que producen calor.
11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del
tipo descrito en el instructivo de operación, o como se indique en el aparato.

724-746-5500 | blackbox.com Page 5
NOM Statement
12. Precaución debe ser tomada de tal 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
recomendaciones 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.

724-746-5500 | blackbox.com
Page 6
Table of Contents
Table of Contents
1. Specifications.............................................................................................. 7
2. Overview .................................................................................................... 8
2.1 Introduction.................................................................................... 8
2.2 Features .......................................................................................... 8
2.3 What’s Included.............................................................................. 8
2.4 Connectors and Network Cables Supported ................................. 9
2.5 Hardware Description..................................................................... 9
2.5.1 LHC201A .............................................................................. 9
2.5.2 LHC202A............................................................................ 11
3. Configuration ........................................................................................... 13
4. Installation ................................................................................................ 15
4.1 Typical Installation......................................................................... 15
4.2 Installation Procedure ................................................................... 15
5. Operation ................................................................................................. 17
5.1 LEDs on the Media Converter ...................................................... 17
5.2 Switch ........................................................................................... 19
5.3 Link Fault Passthrough Function................................................... 22
6. Troubleshooting........................................................................................ 24
6.1 Contacting Black Box.................................................................... 24
6.2 Shipping and Packaging ............................................................... 24

724-746-5500 | blackbox.com Page 7
Chapter 1: Specifications
1. Specifications
Maximum Distance — LHC201A: Multimode fiberoptic: 2 km,
LHC202A: Single-mode fiberoptic: 20 km
Standards — IEEE 802.3, IEEE 802.3u
Connectors — (1) dual SC, (1) RJ-45
Temperature Tolerance — Operating: +32 to +104° F (0 to +40° C);
Storage: -40 to +158° F (-40 to +70° C)
Humidity — Operating: 10 to 90% relative humidity, noncondensing;
Storage: 5 to 90% relative humidity, noncondensing
Power — External: 100–240 VAC, 50–60 Hz, 0.3 A;
Output: 9 VDC, 0.6 A, 5.4 W max.
Size — 1.1"H x 3.7"W x 2.9"D (2.7 x 9.4 x 7.4 cm)
Weight — 1.1 lb. (0.5 kg)

724-746-5500 | blackbox.com
Page 8
Chapter 2: Overview
2. Overview
2.1 Introduction
The Pure Networking Fast Ethernet Media Converters connect a 10/100BASE-TX
network segment and a 100BASE-FX network segment. Use these units to join a
10/100BASE-TX segment to a 100BASE-FX segment on your network, or use them
in pairs to extend the 328-foot (100-m) distance limitation of copper based
Ethernet.
The converters also feature LFP (Link Fault Passthrough, as described in Section 5.3).
Two converter models are available:
• LHC201A: This fiber SC media converter transmits/receives data by 1310-nm
short-wave laser over multimode fiber.
• LHC202A: This fiber SC media converter transmits/receives data by 1310-nm
short-wave laser over single-mode fiber.
2.2 Features
• Complies with 802.3u 10/100BASE-TX and 100BASE-FX standards.
• Provides one SC connector and one RJ-45 connector.
• Supports autonegotiation of duplex mode on the twisted-pair port.
• Supports autonegotiation of 10/100 Mbps and auto MDI/MDI-X for the
twisted-pair port.
• Supports Link Fault Passthrough (LFP) and Far End Fault (FEF) functions.
• Extends fiber distance up to 2 km for multimode fiber and 20 km for single-mode
fiber.
• Easy-to-view LED indicators provide status to easily monitor network activity.
• Uses an external power supply (included).
2.3 What’s Included
Your package should contain the following items. If anything is missing or damaged,
contact Black Box Technical Support at 724-746-5500 or [e-mail].
• (1) Pure Networking Fast Ethernet Media Converter
• (1) DC adapter
• This user’s manual

724-746-5500 | blackbox.com Page 9
Chapter 2: Overview
2.4 Connectors and Network Cables Supported
The connectors and network cables supported by the converter are listed as follows.
• Connectors: RJ-45, SC.
• Network cables: CAT5 twisted-pair (TP), 1310-nm 62.5/125-µm, 50/125-µm
single-mode/multimode fiber.
Table 2-1. Connectors and network cable supported.
Part
Number Interface
Transmission
Distance
Transmission
Media
Output
Center
Wavelength
LHC201A
RJ-45 TP
and SC
fiber
2 km Multimode
fiber, TP 1310 nm
LHC202A
RJ-45 TP
and SC
fiber
20 km Single-mode
fiber, TP 1310 nm
2.5 Hardware Description
Figures 2-1 through 2-4 show the front and back panels of the media converters.
Tables 2-2 and 2-3 describe their components.
2.5.1 LHC201A
1 2 3 4 5 6 7
8 9
Figure 2-1. Front panel of the LHC201A.

724-746-5500 | blackbox.com
Page 10
Chapter 2: Overview
10 11
Figure 2-2. Back panel of the LHC201A.
Table 2-2. LHC201A components.
Number Component Description
1, 2 (1) dual SC connector (TX/RX) Links to multimode
fiber segment
3, 4, 5, 6,
8, 9 (6) LEDs
PWR, LFP, LINK/ACT
FX, SPD, FDX/COL,
LINK/ACT TP
7RJ-45 connector Connects to
10/100BASE-TX device
10 (1) barrel connector Links to power
11 (1) 4-position DIP switch
TP-Auto or TP-Dis,
TP-100M or TP10M,
TP FDX or TP-HDX,
LFD-ON or LFD-OFF
*See Tables 5-1 and 5-2 for LED and DIP switch functions.

724-746-5500 | blackbox.com Page 11
Chapter 2: Overview
2.5.2 LHC202A
1 2 3 4 5 6 7
8 9
Figure 2-3. Front panel of the LHC202A.
10 11
Figure 2-4. Back panel of the LHC202A.

724-746-5500 | blackbox.com
Page 12
Chapter 2: Overview
Table 2-3. LHC202A components.
Number Component Description
1, 2 (1) dual SC connector (TX/RX) Links to single-mode
fiber segment
3, 4, 5, 6,
8, 9 (6) LEDs
PWR, LFP, LINK/ACT
FX, SPD, FDX/COL,
LINK/ACT TP
7RJ-45 connector Connects to
10/100BASE-TX device
10 (1) barrel connector Links to power
11 (1) 4-position DIP switch
TP-Auto or TP-Dis,
TP-100M or TP10M,
TP FDX or TP-HDX,
LFD-ON or LFD-OFF
*See Tables 5-1 and 5-2 for LED and DIP switch functions.

724-746-5500 | blackbox.com Page 13
Chapter 3: Configuration
3. Configuration
To expand a Fast Ethernet network, you can use the converter as described in the
following examples:
1. Place two converters back to back between the end devices as shown in Figure
3-1.
Device A Device B
LHC201A
or
LHC202A
LHC201A
or
LHC202A
Twisted-
pair cable
Twisted-
pair cable
Single-mode or
multimode
fiber optic cable
10/100BASE-TX
interface
100BASE-FX
interface
Figure 3-1. Application using two media converters.
NOTE: Use two LHC201A Media Converters or two LHC202A media converters
to expand your network.

724-746-5500 | blackbox.com
Page 14
Chapter 3: Configuration
2. Place one converter directly between a 10/100BASE-TX network segment and a
100BASE-FX network segment as shown in Figure 3-2.
Device A
Device B
10/100BASE-TX
interface
100BASE-FX
interface
Figure 3-2. Application using one LHC201A or one LHC202A.

724-746-5500 | blackbox.com Page 15
Chapter 4: Installation
4. Installation
4.1 Typical Installation
1. The SC fiber connector of an LHC201A transmits/receives data by 1310-nm
short-wave laser on multimode fiber.
2. The SC fiber connector of an LHC202A transmits/receives data by 1310-nm
short-wave laser on single-mode fiber.
Figure 4-1 shows a typical installation.
Device A Device B
LHC201A
or
LHC202A
LHC201A
or
LHC202A
Twisted-
pair cable
Twisted-
pair cable
Multimode or
single-mode
fiber optic cable
Figure 4-1. Transmits and receives data on different fibers.
NOTE: The units work in pairs. You have to use either two LHC201A converters or
two LHC202A converters.
4.2 Installation Procedure
Use a fiber cable to connect two converters, or connect a converter with a
100BASE-FX device.
1. Connect a converter to a 10/100BASE-TX device (hub or switch).
• Make sure that the CAT5 twisted pair cable between the 10/100BASE-TX device
and the converter is less than 328 feet (100 meters) long.
• Connect one end of the CAT5 twisted pair cable to the RJ-45 jack on the
converter and the other end of the cable to the RJ-45 jack on the 10/100BASE-TX
device.

724-746-5500 | blackbox.com
Page 16
Chapter 4: Installation
2. Connect two converters or a converter and a 100BASE-FX device.
• Use an SC fiber cable to connect the two converters’ SC connector or the SC
connecter of a converter and a 100BASE-FX device.
3. Turn on the power.

724-746-5500 | blackbox.com Page 17
Chapter 5: Operation
5. Operation
5.1 LEDs on the Media Converters
The converters have real-time LED indicators that can provide real-time status
reports. Just look at the LEDs to determine the link status. Figure 5-1 shows the
LEDs and Table 5-1 describes their functions.
Figure 5-1. LEDs.

724-746-5500 | blackbox.com
Page 18
Chapter 5: Operation
Table 5-1. LED functions.
Name Status Description
PWR
ON Power to the unit is ON.
OFF Power to the unit is OFF.
FX
LFP
ON The Link Fault Passthrough (LFP) function
is enabled.
OFF The Link Fault Passthrough (LFP) function
is disabled.
Link/Act
ON There is a valid link.
Flashing The converter is receiving or transmitting
data from the fiberoptic connector.
OFF There is no valid link.
TP
SPD
ON The TP port is connected to
100BASE-TX.
OFF The TP port is connected to 10BASE-T or
is not connected.
FDX/Col
ON The TP port is operating in full-duplex
mode.
Flashing There is a collision.
OFF The TP port is operating in half-duplex
mode.
Link/Act
ON There is a valid link.
Flashing The converter is receiving or transmitting
data from the TP port.
OFF There is no connection on the port.

724-746-5500 | blackbox.com Page 19
Chapter 5: Operation
5.2 Switch
The converters have a 4-position DIP switch. Figure 5-2 shows the DIP switch and
Table 5-2 describes its functions.
Figure 5-2. DIP switch.

724-746-5500 | blackbox.com
Page 20
Chapter 5: Operation
Table 5-2. DIP switch functions.
Switch
Position Name Position Description
1
TP-AUTO UP The TP port operates in
autonegotiation mode.
TP-DIS DOWN The TP port operates in FORCE
mode.
2
TP-100M UP The TP port operates in
100BASE-TX mode.
TP-10M DOWN The TP port operates in
10BASE-T mode.
3
TP_FDX UP The TP port operates in
full-duplex mode.
TP_HDX DOWN The TP port operates in
half-duplex mode.
4
LFP_OFF UP The Link Fault Passthrough function
is disabled.
LFP_ON DOWN The Link Fault Passthrough function
is enabled.
Some common configurations are shown in Table 5-3.