Black Box Portable Media Storage 10 100BASE TX to 100BASE FX Media Converter User Manual

April 2010  
LBMC300-MMST  
LBMC300-MMSC  
10/100BASE-TX to 100BASE-FX Media Converter  
Provides one channel to convert 10BASE-T/  
100BASE-TX to 100BASE-FX media.  
Use as a standalone device or with a standard 19" rackmount chassis.  
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 724-746-0746 • Mailing address:  
Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 •  
Customer  
Support  
Information  
 
NOM Statement  
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.  
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.  
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10/100BASE-TX to 100BASE-FX Media Converter  
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.  
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Trademarks Used in this Manual  
Trademarks Used in this Manual  
Black Box and the Double Diamond logo are registered trademarks  
of BB Technologies, Inc.  
UL is a registered trademark of Underwriters Laboratories Inc.  
Any other trademarks mentioned in this manual are acknowledged  
to be the property of the trademark owners.  
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10/100BASE-TX to 100BASE-FX Media Converter  
Table of Contents  
Chapter  
Page  
1. Specifications .............................................................................................7  
2. Overview .................................................................................................8  
2.1 Introduction......................................................................................8  
2.2 Features............................................................................................8  
2.3 What’s Included ...............................................................................9  
2.4 Hardware Description ......................................................................9  
2.4.1 Front Panel...........................................................................9  
2.4.2 Back Panel .........................................................................10  
3. DIP Switch Settings ..................................................................................11  
4. LED Indicators...........................................................................................13  
5. Link Fault Passthrough .............................................................................14  
6. Imstallation...............................................................................................15  
6.1 Selecting a Site for the Equipment ................................................15  
6.2 Connecting to Power.....................................................................15  
6.3 Installing in a Chassis .....................................................................15  
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Chapter 1: Specifications  
1. Specifications  
Emissions: FCC Part 15 Class A, CE Mark  
Fixed Ports: (1) TX port, (1) FX port  
Forwarding Rate: 14,880 pps for 10 Mbps; 148,800 pps for 100 Mbps  
Safety: UL® 60950-1  
Speed: 10/20 Mbps for half-/full-duplex 10BASE-T; 100/200 Mbps  
for half-/full-duplex 100BASE-TX/FX  
Standards: IEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX and 100BASE-FX  
Switching Method: Store and forward  
User Controls: (1) 6-position DIP switch  
Connectors: LBMC300-MMST: (1) pair of ST, (1) RJ-45, (1) barrel connector  
for power;  
LBMC300-MMSC: (1) pair of SC, (1) RJ-45, (1) barrel connector for power  
Indicators: Per unit: (2) LEDs: Power, 100 Mbps;  
Per port: (2) LEDs: LNK/ACT, FDX/COL  
Operating Temperature: 32 to 113° F (0 to 45° C)  
Humidity Tolerance: 5 to 95%, noncondensing  
Power: External power adapter 0.16 A at 12 VDC;  
Consumption: 1.9 W maximum  
Size: 0.9"H x 3.2"W x 4.3"D (2.4 x 8 x 10.9 cm)  
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10/100BASE-TX to 100BASE-FX Media Converter  
2. Overview  
2.1 Introduction  
LBMC300-MMST and LBMC300-MMSC converters provide one channel for media  
conversion between 10BASE-T/100BASE-TX and 100BASE-FX. They can be used as  
a standalone device or with a standard 19” chassis as shown in Figure 2-1.  
An LBMC300-MMST or LBMC300-MMSC media converter provides one TX port  
and one FX port. For the FX port, you can use multimode fiber cable with an SC or  
ST connector, depending on the model. The TX port uses one RJ-45 connector and  
autosenses the 10-/100-Mbps speed.  
Port settings are easy via a DIP (Dual Inline Package) switch on the rear panel of the  
module.  
Figure 2-1. Converters installed in a rack.  
NOTE: The rack (part number LB300A-RACK) is available separately.  
2.2 Features  
• Converts one channel between 10BASE-T/100BASE-TX and 100BASE-FX media  
• Fiber media can be multimode fiber using SC or ST connectors  
• Autonegotiation of speed and duplex mode on TX port  
• Auto MDI-X on TX port  
• One DIP switch for configuring link-fault-passthrough, fixed speed, and half/full  
duplex  
• 2048 MAC addresses, 768K bits buffer memory  
• Store-and-forward mechanism  
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Chapter 2: Overview  
• Non-blocking full wire-speed forwarding rate  
• Support broadcast storm filtering  
• Backpressure and IEEE 802.3x compliant flow control  
• Front-panel status LEDs  
• External AC to DC power adapter  
• Used as a standalone device or with a chassis  
• Hot-swappable when used with a chassis  
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 [email protected].  
• Media Converter  
• AC to DC power adapter  
• This user’s manual  
2.4 Hardware Description  
2.4.1 Front Panel  
Figure 2-2 shows the front panel of the media converter. Table 2-1 describes its  
components.  
3
2
1
Figure 2-2. Front panel.  
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10/100BASE-TX to 100BASE-FX Media Converter  
Table 2-1. Front-panel components.  
Number  
Component  
SC or ST connector  
LEDs  
Description  
1
2
3
Fiber link  
See Table 4-1 in Chapter 4.  
Twisted-pair link  
RJ-45 connector  
2.4.2 Back Panel  
Figure 2-3 shows the back panel of the media converter. Table 2-2 describes its  
components.  
4
5
Figure 2-3. Back panel.  
Table 2-2. Back-panel components.  
Number  
Component  
Description  
4
5
6-position DIP switch  
Barrel connector  
Configuration  
Power  
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Chapter 3: DIP Switch Settings  
3. DIP Switch Settings  
A close-up view of the DIP switches appears in Figure 3-1. Settings for the  
6-position DIP switch are described in Table 3-1.  
Figure 3-1. DIP switches.  
Table 3.1 DIP switch settings.  
DIP Switch  
Number  
Down (Default setting) Up  
Description  
1
2
3
4
5
Enable LFPT  
Disable LFPT  
LFPT = Link-fault  
passthrough  
Enable auto-negotiation  
for TX port  
Enable forced  
mode for TX port  
TX port forced to  
100 Mbps  
TX port forced to  
10 Mbps  
TX port forced to  
full-duplex mode  
TX port forced to  
half-duplex mode  
FX port forced to  
full-duplex mode  
FX port forced to  
half-duplex mode  
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10/100BASE-TX to 100BASE-FX Media Converter  
To set the DIP switches:  
1. First, disconnect the converter from the power. Then toggle Pin 2 of the DIP  
switch to the up position to enable the forced mode for TX port.  
NOTE: Pin 2 must be toggled up before setting speed and duplex mode manually.  
2. Toggle down Pin 3 to force the TX port at the speed of 100 Mbps. Or toggle up  
Pin 3 for 10-Mbps speed.  
3. Toggle down Pin 4 to force the TX port at full-duplex mode. Or toggle up Pin 4  
for half-duplex mode.  
4. Toggle down Pin 5 to force the FX port at full-duplex mode. Or toggle up Pin 5  
for half duplex mode.  
5. Toggle up Pin 1 to disable the link-fault-pass-through.  
6. Connect the converter to the power again. The new setting will then take effect.  
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Chapter 4: LED Indicators  
4. LED Indicators  
The LED indicators give you instant feedback on status of the converter.  
Table 4-1. LED indicators and their functions.  
LED  
State  
Indication  
PWR  
Steady  
Off  
Power on  
Power off  
100 (Mbps)  
LNK/ACT  
Steady  
Off  
Connected at 100 Mbps speed  
Connected at 10 Mbps speed  
Steady  
Flashing  
Off  
A valid network connection is established  
Transmitting or receiving data  
Valid connection not established, and the  
unit is not transmitting/receiving data  
FDX/COL  
Steady  
Connected in full-duplex mode  
Flashing  
Off  
Collision occurred  
Connected in half-duplex mode  
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10/100BASE-TX to 100BASE-FX Media Converter  
5. Link-Fault-Passthrough  
Connect the FX ports of Media Converters A and B through the fiber cable.  
1. Link Fault on the FX port of Media Converter A: A Link Fault condition will be  
sensed on the TX port whenever Media Converter A detects a Link Fault condi-  
tion on the FX port. Thus, the 100, LNK/ACT, and FDX/COL LEDs of the TX port  
of Media Converter A would be off.  
2. Link Fault on the TX port of Media Converter A: A Link Fault condition will be  
sensed on the FX port whenever the media converter detects a Link Fault condi-  
tion on the TX port. Thus, the 100, LNK/ACT, and FDX/COL LEDs of the TX port  
of Media Converter A would be off.  
The Media Converter B: A Link Fault condition will be sent to the FX port of  
Media Converter B. Then a Link Fault condition will be sensed on the TX port of  
Media Converter B whenever Media Converter B detects a Link Fault condition on  
the FX port. Thus, the 100, LNK/ACT, and FDX/COL LEDs of Media Converter B  
would be off.  
Table 5-1. Link fault settings.  
Link fault on the FX port  
TX port  
100  
FX port  
LEDs  
PWR  
LNK/ACT  
FDX/COL LNK/ACT FDX/COL  
Media  
ON  
OFF  
OFF  
OFF  
OFF  
OFF  
Converter A  
Media  
ON  
OFF  
OFF  
OFF  
OFF  
OFF  
Converter B  
Link fault on the TX port  
LEDs  
PWR  
100  
LNK/ACT  
FDX/COL LNK/ACT FDX/COL  
Media  
ON  
OFF  
OFF  
OFF  
ON  
ON  
Converter A  
Media  
ON  
OFF  
OFF  
OFF  
OFF  
OFF  
Converter B  
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Chapter 6: Installation  
6. Installation  
This chapter gives step-by-step installation instructions for the converter.  
6.1 Selecting a Site for the Equipment  
As with any electric device, you should place the equipment where it will not be  
subjected to extreme temperatures, humidity, or electromagnetic interference.  
Specifically, the site you select should meet the following requirements:  
• The ambient temperature should be between 32 and 113 degrees Fahrenheit (0 to  
45 degrees Celsius).  
• The relative humidity should be less than 95 percent, noncondensing.  
• Surrounding electrical devices should not exceed the electromagnetic field (RFC)  
standards for IEC 8013, Level 2 (3V/M) field strength.  
• Make sure that the equipment receives adequate ventilation. Do not block the  
ventilation holes on each side of the equipment.  
• The power outlet should be within 6 feet (1.8 m) of the converter.  
6.2 Connecting to Power  
This Converter is a plug-and-play device.  
Connect the supplied AC to DC power adapter to the receptacle on the rear panel  
of the converter, and then attach the plug into a standard AC outlet.  
6.3 Installing in a Chassis  
LBMC300-MMST and LBMC300-MMSC fit into any of the expansion slots on the  
compatible chassis, LB300A-RACK. Follow the steps described below.  
First, install the converter onto a carrier supplied with the chassis:  
Step 1: Unscrew the carrier from the desired expansion slot on the chassis.  
Step 2: Fit the converter onto the carrier.  
Step 3: When the converter is completely seated onto the carrier, insert the carrier  
to the guide rails of the expansion slot.  
Step 4: Carefully slide in the carrier until it is fully and firmly fit in the chassis. Fasten  
the screws onto the carrier.  
NOTE: Never insert any converter into the chassis directly without using the supplied  
carriers. The carriers enable you to place the converters securely and  
consistently without damaging them.  
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Black Box Tech Support: FREE! Live. 24/7.  
Tech support the  
way it should be.  
Great tech support is just 20 seconds away  
at 724-746-5500 or blackbox.com.  
About Black Box  
Black Box Network Services is your source for more than 118,000 networking  
and infrastructure products. You’ll find everything from cabinets and racks and  
power and surge protection products to media converters and Ethernet switches  
all supported by free, live 24/7 Tech support available in 20 seconds or less.  
© Copyright 2010. All rights reserved.  
 

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