Black Box Computer Hardware LMC5027C R3 User Manual

LMC5022C-R3 LMC5110C-R3 LMC5116C-R3 LMC5182C-R3  
LMC5023C-R3 LMC5111C-R3 LMC5117C-R3  
LMC5026C-R3 LMC5113C-R3 LMC5180C-R3  
LMC5027C-R3 LMC5114C-R3 LMC5181C-R3  
High-Density Media Converter System II Layer 2 Modules  
True Layer 2 conversion enables  
you to extend your network  
up to 40 kilometers over duplex fiber.  
Certifications  
Certifications  
Class 1 Laser product, Luokan 1 Laserlaite,  
Laser Klasse 1, Appareil A’Laser de Classe  
European Directive 2002/96/EC (WEEE) requires that any equipment that  
bears this symbol on product or packaging must not be disposed of with  
unsorted municipal waste. This symbol indicates that the equipment should be  
disposed of separately from regular household waste. It is the consumer’s  
responsibility to dispose of this and all equipment so marked through  
designated collection facilities appointed by government or local authorities.  
Following these steps through proper disposal and recycling will help prevent  
potential negative consequences to the environment and human health. For  
more detailed information about proper disposal, please contact local  
authorities, waste disposal services, or the point of purchase for this equipment.  
LMC5022C-R3  
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Page 3  
Table of Contents  
Table of Contents  
Part Numbers .................................................................................................. 5  
1. Specifications............................................................................................ 6  
2. Overview: About the High-Density Media Converter System II Layer 2  
Modules........................................................................................................... 7  
3. Configuration............................................................................................. 8  
4. Install the High-Density Media Converter System II Layer 2 Modules ..... 9  
4.1 Managed Modules .................................................................................... 9  
4.1.1 Configuration Control and SNMP Management................................. 9  
4.2 Unmanaged Modules.............................................................................. 10  
4.3 FX LinkLoss, TX LinkLoss, Link Fault Pass-Through, Far End Fault and  
FiberAlert....................................................................................................... 11  
4.3.1 Link Integrity..................................................................................... 11  
4.3.2 FX LinkLoss (FXLL).......................................................................... 12  
4.3.3 TX LinkLoss (TXLL).......................................................................... 12  
4.3.4 Link Fault Pass-Through (LFPT)...................................................... 12  
4.3.5 FiberAlert and Far End Fault............................................................ 13  
4.4 Auto Negotiation on High-Density Media Converter System II Layer 2  
Modules......................................................................................................... 15  
4.5 AutoCross Feature for Twisted Pair Connection .................................... 15  
5. Operation ................................................................................................ 16  
5.1 LED Operation ........................................................................................ 16  
6. Troubleshooting ...................................................................................... 17  
7. Contacting Black Box.............................................................................. 18  
8. Fiber Optic Cleaning Guidelines............................................................. 19  
Electrostatic Discharge Precautions.............................................................. 19  
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LMC5022C-R3  
Part Numbers  
Part Numbers  
Part Number  
Description  
LMC5022C-R3 TX/FX-MM1300-ST  
LMC5023C-R3 TX/FX-MM1300-SC  
LMC5026C-R3 TX/FX-SM1310/PLUS-ST  
LMC5027C-R3 TX/FX-SM1310/PLUS-SC  
LMC5110C-R3 TX/FX-SM1310/LONG-SC  
LMC5111C-R3 TX/FX-SM1310/LONG-ST  
LMC5113C-R3 TX/SSFX-SM1310-SC (1310xmt/1550rcv)  
LMC5114C-R3 TX/SSFX-SM1550-SC (1550xmt/1310rcv)  
LMC5116C-R3 TX/SSFX-SM1310/PLUS-SC (1310xmt/1550rcv)  
LMC5117C-R3 TX/SSFX-SM1550/PLUS-SC (1550xmt/1310rcv)  
LMC5180C-R3 TX/FX-SM1550/LONG-SC  
LMC5181C-R3 TX/FX-MM850-SC  
LMC5182C-R3 TX/FX-MM850-ST  
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Chapter 1: Specifications  
1. Specifications  
DC Input  
L2 w/LFPT: 0.80 Amp @ 5V  
+32° F to +122° F (0° C to +50° C)  
0° F to +122° F (-20° C to +70° C)  
5 - 95% (non-condensing)  
Operating Temperature:  
Storage Temperature:  
Humidity:  
Fiber Optic Specifications For fiber optic specifications, please visit:  
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LMC5022C-R3  
Chapter 2: Overview  
2. Overview: About the High-Density Media Converter System II Layer 2  
Modules  
The L2 is a Fast Ethernet module which provides a single conversion between  
100BASE-TX twisted pair and 100BASE-FX/SX single-mode or multi-mode  
fiber. Each L2 includes one RJ-45 connector and one pair of ST or SC fiber  
optic connectors  
Also available in a single-strand fiber version, L2 TX/SSFX allows two  
wavelengths to share one fiber strand — Full-Duplex data travels on different  
wavelengths, for example (1310 nm and 1550 nm) — doubling the capacity of  
fiber.  
The L2 is SNMP-manageable and can be installed into the modular, SNMP-  
manageable High-Density Media Converter System II Layer 2 chassis, which is  
unmanaged.  
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Chapter 3: Configuration  
3. Configuration  
The L2 has user-configurable features (e.g., FiberAlert (FA), TX LinkLoss  
(TXLL), FX LinkLoss (FXLL), Link Fault Pass-Through (LFPT) and Far End  
Fault (FEF)). Refer to the Managed Media Converter Module DIP Switch  
Configuration Table for information on available features. Instructions for  
installing and configuring both managed (via an SNMP-compatible  
management application like iView²) and unmanaged modules follow.  
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LMC5022C-R3  
Chapter 4: Install the High-Density Media Converter System II Layer 2  
Modules  
4. Install the High-Density Media Converter System II Layer 2 Modules  
The Managed Media Converter Modules install in Black Box SNMP  
manageable High-Density Media Converter System II chassis.  
NOTE  
All modules are hot-swappable.  
To install a Managed Media Converter Module:  
1. Remove the blank bracket covering the slot where the module is to be  
installed by removing the screws on the outside edges of the bracket.  
2. Slide the Managed Media Converter Modules into the chassis, via the  
cardguides, until the module is seated securely in the connector.  
3. Secure the module to the chassis by tightening the captive screw.  
4. Save any “blanks” removed during installation for future use if the  
configuration requirements change  
4.1 Managed Modules  
To manage one or more L2(s), an SNMP agent must be present in the chassis.  
To configure Managed Modules, install the module first, and then configure  
using the management software.  
All Fiber Type information is now loaded into the NVRAM during manufacturing.  
This is viewed only via iView² software, within the modules details.  
Requirements:  
SNMP Firmware version C2  
iView² 1.8.6 or higher  
4.1.1 Configuration Control and SNMP Management  
Some High Density L2 Modules offer Configuration Control; labels on the front  
faceplate are identified as such. Configuration Control has been implemented  
to assist the end user by retaining the latest configuration regardless of how  
that configuration was implemented (via DIP Switch settings or SNMP), when  
an SNMP Management Module is present in a managed chassis.  
Historically, if an SNMP Management Module was installed in a chassis, SNMP  
would override the DIP Switch settings of a module. Using Configuration  
Control, the end user has three conditions under which the configuration of an  
SNMP Manageable Module may be impacted:  
Changing or installing an SNMP Management Module into a chassis with a  
High Density L2 Modules with Configuration Control populated in a chassis  
-
The High Density L2 Module with Configuration Control will transfer its  
saved configurations to the SNMP Management Module. If there is no  
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Chapter 4: Install the High-Density Media Converter System II Layer 2  
Modules  
SNMP Management Module, the High Density L2 Module with  
Configuration Control will function based on its DIP Switch settings. If  
the DIP Switches have not been changed, the stored configuration will  
be used. The stored configuration can be extracted from the SNMP  
Management Module or the DIP Switches.  
Replacing the same type of a High Density L2 Module with Configuration  
Control  
-
If the DIP Switch settings are the same as the settings on the removed  
High Density L2 Module, the new High Density L2 Modules with  
Configuration Control gets its configuration settings from the SNMP  
Management Module.  
-
If the DIP Switch settings are different, then the configuration of the  
module is determined by the DIP Switch settings. (The settings are  
forwarded to the SNMP Management Module and the values are  
saved.)  
Installing a different model of a High Density L2 Module with Configuration  
Control  
-
If another type of module is installed into the same slot in a chassis, the  
SNMP Management Module clears the memory of the previous  
configuration for that slot; the installed SNMP Manageable Module  
configures itself, and its configuration is forwarded to the SNMP  
Management Module, where the values are saved.  
The SNMP Write Lock switch does not impact any High Density L2 Module or  
High Density L2 Module with Configuration Control. Removing and installing a  
new SNMP Management Module will no longer impact these modules either.  
However, if there is a mixture of High Density L2 Modules with and without  
Configuration Control, the Write Lock Switch and a new SNMP Management  
Module must be taken into consideration.  
If the command cleandb is applied to an SNMP Management Module, all the  
settings for the modules will be removed, but the Configuration Control modules  
will still be based on the last change made, while those without Configuration  
Control will be set to their default settings.  
4.2 Unmanaged Modules  
Before installing, configure the L2 modules for desired features. The table on  
the next page indicates the available features and settings for the L2 modules.  
After configuring the DIP Switches for the desired settings, install the module  
and connect the appropriate cables (refer to the Installating a High-Density  
Media Converter System II Layer 2 section for more information).  
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LMC5022C-R3  
Chapter 4: Install the High-Density Media Converter System II Layer 2  
Modules  
DIP Switch on S1  
Feature  
Default Setting  
1
2
3
4
5
6
7
8
Auto Negotiation (AN)  
Far End Fault (FEF)  
FX LinkLoss (FXLL)  
TX LinkLoss (TXLL)  
FiberAlert (FA)  
Factory Default  
Factory Default  
Factory Default  
ON  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
4.3 FX LinkLoss, TX LinkLoss, Link Fault Pass-Through, Far End Fault  
and FiberAlert  
L2 modules include the troubleshooting features FiberAlert, TXLL, FXLL, FEF  
and LFPT that help locate silent failures on a network. Before attempting to  
install the module(s), understand how these features work and react to a  
specific network configuration.  
4.3.1 Link Integrity  
During normal operation, link integrity pulses are transmitted by all point-to-  
point Ethernet devices. When a Black Box media converter receives valid link  
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Chapter 4: Install the High-Density Media Converter System II Layer 2  
Modules  
pulses, it knows that the device to which it is connected is up and sending  
pulses, and that the copper or fiber cable coming from that device is intact. The  
appropriate “LNK” (link) LED is lit to indicate this.  
The Black Box media converter also sends out link pulses from its copper and  
fiber transmitters, but normally has no way of knowing whether the cable to the  
other device is intact and the link pulses are reaching the other end. The  
combination of FiberAlert and LinkLoss allows this information to be obtained  
even when physical access to a remote device (and its link integrity LED) is not  
available.  
4.3.2 FX LinkLoss (FXLL)  
FX LinkLoss is a troubleshooting feature. When enabled, if a fault occurs on  
the fiber segment of a conversation, FX LinkLoss detects the fault and passes  
this information to the twisted pair segment. If a media converter is not  
receiving a fiber link, FX LinkLoss disables the transmitter on the media  
converter’s twisted pair port. This results in a loss of link on the device  
connected to the twisted pair port.  
4.3.3 TX LinkLoss (TXLL)  
TX LinkLoss is a troubleshooting feature. When enabled, if a fault occurs on  
the twisted pair segment of a conversion, TX LinkLoss detects the fault and  
passes this information to the fiber segment. If a media converter is not  
receiving a twisted pair link, TX LinkLoss disables the transmitter on the media  
converter's fiber port. The result is in a loss of the link on the device connected  
to the fiber port.  
4.3.4 Link Fault Pass-Through (LFPT)  
Link Fault Pass-Through (LFPT) is a troubleshooting feature that combines TX  
and FX LinkLoss from both the local and remote L2 modules. LFPT is enabled  
by turning on both FX and TX LinkLoss on both modules. This feature allows  
either end of the conversion to detect a link fault occurring at the other end of  
the media conversion chain.  
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LMC5022C-R3  
Chapter 4: Install the High-Density Media Converter System II Layer 2  
Modules  
Regardless if there is a break in segment 1, 2 or 3, the link will drop on the  
switches at both ends. The link fault is passed through the media conversion  
and is observed at each end. It acts just like it would if the devices were  
directly connected.  
For more information on LinkLoss/FiberAlert, visit the Black Box Web site at  
specific configuration, contact Black Box Technical Support at 877-877-2269.  
4.3.5 FiberAlert and Far End Fault  
Modules ship from the factory with troubleshooting features disabled.  
FiberAlert (FA)  
FiberAlert minimizes the  
problems associated with  
the loss of one strand of  
fiber. If a strand is  
unavailable, the Black  
Box device at the receiver  
end notes the loss of link.  
The device will then stop transmitting data and the link signal until a signal or  
link pulse is received. The result is that the link LED on BOTH sides of the fiber  
connection will go out indicating a fault somewhere in the fiber loop. Using  
FiberAlert, a local site administrator is notified of a fault and can quickly  
determine where a cable fault is located.  
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Chapter 4: Install the High-Density Media Converter System II Layer 2  
Modules  
WARNING  
Enable FiberAlert at the remote side of a media conversion only. Enabling it on both  
sides would keep both transmitters disabled indefinitely.  
By default FA is disabled. When enabled if, a fault occurs on the fiber line,  
affecting data in one direction, FA stops sending signal in the opposite  
direction. FXLL will act on this lack of signal, propagating the loss of like to the  
copper port when FXLL is enabled.  
Far End Fault  
By default, FEF is disabled. When enabled, and a fault occurs on the fiber line,  
affecting data in one direction, an FEF signal will be sent in the opposite  
direction, indicating the fault. FXLL will act on this signal propagating the loss of  
link to the copper port when FXLL is enabled.  
FEF versus FA  
FEF is preferred when the devices at both ends of the fiber can interpret the  
FEF signal. This allows FEF to be turned on at both ends, which will engage  
the FEF regardless of which direction the fault occurs. (Please refer to diagram  
on previous page) For example if a fault should occur on segment 2 in the  
direction of segment 1 to 3, FEF would be engaged on the L2 between  
segment 2 and 3. This would then send a signal back to the L2 between  
segment 1 and 2. If the L2 between segment 1 and 2 is in a managed chassis,  
the chassis would send a trap that the port is down. Alternatively, if the L2 is  
not in a managed chassis, FXLL could be engaged to propagate the fault onto  
the copper port; this would cause segment 1 to show no link on both ends.  
FA is used when connecting to a device that does not support FEF. If an FEF  
signal is sent to a device that does not support FEF, the device acts as if there  
is still a good connection. The FEF signal is mistaken for data. FA works  
similar to FEF, in that when there is a fault in one direction of the fiber, it acts  
on the fiber in the opposite direction. But unlike FEF, FA sends no signal.  
Because of this, FA can not be enabled on both ends. If it is enabled and a  
fault occurs, FA will turn signal off in the opposite direction; the device on the  
other side of the fiber will see the loss of signal and engage FA, turning off  
signal. The net result will be the signal turned off in both directions, even after  
the fault has been repaired.  
It is highly recommended that only one is chosen, either FEF or FA. If both are  
selected FA will take precedence over FEF.  
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LMC5022C-R3  
Chapter 4: Install the High-Density Media Converter System II Layer 2  
Modules  
4.4 Auto Negotiation on High-Density Media Converter System II Layer 2  
Modules  
L2 modules include the feature Auto Negotiation. When Auto Negotiation is  
enabled, the module negotiates as a 100 Mbps full-duplex device. If the  
connected device can operate at 100 Mbps full-duplex, a link is established.  
Auto Negotiation (DIP Switch #1) is enabled by default.  
If the twisted pair port on the other device does not have the ability to Auto  
Negotiate or if the 100 Mbps half-duplex connection is desired, then Auto  
Negotiation must be disabled. Half- and full-duplex settings must be set  
manually and match on both devices.  
The following diagram shows a typical application and with three possible  
configurations.  
End-to-End  
Connection  
Switch  
TX/FX  
Half-Duplex  
Full-Duplex  
Full-Duplex  
Configure  
HDX manually OFF  
Auto Negotiation is  
Configure  
FDX manually OFF  
Auto Negotiation is  
Auto  
Negotiation is  
ON  
Auto Negotiation is  
ON  
Configure Auto Negotiation on a L2 by adjusting the DIP Switch setting (for  
unmanaged modules) or via the management software. Refer to the DIP  
Switch table for switch location and settings.  
4.5 AutoCross Feature for Twisted Pair Connection  
All twisted pair ports on the L2 includes AutoCross, a feature that automatically  
selects between a crossover workstation and a straight-through connection  
depending on the connected device.  
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Chapter 5: Operation  
5. Operation  
5.1 LED Operation  
Each L2 module features diagnostic LEDs that provide information on features  
and ports.  
Upgrade LED Stacks  
Upper  
FEF  
Function  
Fiber Far End Fault  
State  
ON Green  
ON Green  
ON Green  
On Yellow  
TXLL TX LinkLoss/Blink if Active  
LNK FiberLink is valid/Flash on Activity  
DIS  
Software Disabled TX Port  
Upper  
FA  
Function  
FiberAlert enabled/Blink Active  
State  
ON Green  
ON Green  
ON Green  
On Yellow  
FXLL FX LinkLoss/Blink if Active  
LNK FX LinkLoss is valid/Flash on Activity  
DIS  
Software Disabled fiber port  
(via iView²)  
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LMC5022C-R3  
Chapter 6: Troubleshooting  
6. Troubleshooting  
During installation, first test the fiber and twisted pair connections with all  
troubleshooting features disabled, then enable these features, if desired,  
just before final installation. This will reduce the features’ interference with  
testing.  
When working with units where the features cannot be disabled, establish  
both the twisted pair and fiber connections before the link LEDs will light.  
To test a L2 by itself, first, have an appropriate fiber patch cable, then  
follow these steps:  
1. Connect the L2 to the twisted pair device with a twisted pair cable.  
2. Loop a single strand of fiber from the transmit port to the receive port of  
the L2.  
3. Verify that both the twisted pair and the fiber link are lit (see LEDs,  
below) on the L2.  
Use the appropriate twisted pair cable, and have the crossover/pass-  
through switch set correctly.  
Whenever possible, set the devices connected to the L2 (hub, switch, NIC  
card) to the desired speed and Duplex setting, and turn Auto Negotiation  
OFF. Refer to Auto Negotiation on L2, also configure the devices on the  
opposite sides of the L2 to operate at the same speed and Duplex setting.  
NOTE  
Some 10/100 devices can not be set by the end user, and must Auto Negotiate to  
receive a signal.  
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Chapter 7: Contacting Black Box  
7. Contacting Black Box  
Black Box Customer Service  
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  
Mail order: Black Box Corporation  
1000 Park Drive, Lawrence, PA 15055-1018  
WARNING  
Disconnect all power supplies before servicing.  
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LMC5022C-R3  
Chapter 8: Fiber Optic Cleaning & ESD Precautions  
8. Fiber Optic Cleaning Guidelines  
Fiber Optic transmitters and receivers are extremely susceptible to  
contamination by particles of dirt or dust, which can obstruct the optic path and  
cause performance degradation. Good system performance requires clean  
optics and connector ferrules.  
1. Use fiber patch cords (or connectors, if you terminate your own fiber) only from a  
reputable supplier; low-quality components can cause many hard-to-diagnose  
problems in an installation.  
2. Dust caps are installed at Black Box to ensure factory-clean optical devices.  
These protective caps should not be removed until the moment of connecting the  
fiber cable to the device. If you need to disconnect the fiber device, reinstall the  
protective dust caps.  
3. Store spare caps in a dust-free environment such as a sealed plastic bag or box  
so that when reinstalled they do not introduce any contamination to the optics.  
4. If you suspect that the optics have been contaminated, alternate between  
blasting with clean, dry, compressed air and flushing with methanol to remove  
particles of dirt.  
Electrostatic Discharge Precautions  
Electrostatic discharge (ESD) can cause damage to any product, add-in  
modules or stand alone units, containing electronic components. Always  
observe the following precautions when installing or handling these kinds of  
products.  
1. Do not remove unit from its protective packaging until ready to install.  
2. Wear an ESD wrist grounding strap before handling any module or component.  
If the wrist strap is not available, maintain grounded contact with the system unit  
throughout any procedure requiring ESD protection.  
3. Hold the units by the edges; do not touch the electronic components or gold  
connectors.  
4. After removal, always place the boards on a grounded, static-free surface, ESD  
pad or in a proper ESD bag. Do not slide the modules or stand alone units over  
any surface.  
WARNING! Integrated circuits and fiber optic components  
are extremely susceptible to electrostatic discharge damage.  
Do not handle these components directly unless you are a  
qualified service technician and use tools and techniques that  
conform to accepted industry practices.  
LMC5022C-R3  
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LMC5022C-R3, Rev. 1  
50-80921BB-01 Rev A0  

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