Black Box LE7306A, LE7312A-R2, LE7312A-PS-R2 Installation & User Manual
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Installation & User Guide
“twister”
™
MEDIA CONVERTER 7000
JULY 1999
LE7306A
LE7312A-R2
LE7312A-PS-R2
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX
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
Web site: www.blackbox.com • E-mail: info@blackbox.com
CUSTOMER
SUPPORT
INFORMATION
© 1999 Black Box Corporation All rights reserved. Printed in USA.
Black Box and the Black Box logo are registered trademarks of Black Box Corporation.
All other trademarks appearing in this manual are the property of their owners.
This publication is protected by the copyright laws of the United States and other countries, with
all rights reserved. No part of this publication may be reproduced, stored in a retrieval system,
translated, transcribed, or transmitted, in any form, or by any means manual, electric, electronic,
electromagnetic, mechanical, chemical, optical or otherwise, without prior explicit written
permission of Black Box Corporation.
The information contained in this document is assumed to be correct and current. The
manufacturer is not responsible for errors or omissions and reserves the right to change
specifications at any time without notice.
“twister” Media Converter 7000 Chassis:
LE7300A ____________ 17-slot 2U chassis with single fixed AC power supply
LE7300A-PS _________ 16-slot 2U chassis with dual fixed AC power supplies
LE7306A ____________ 6-slot 2U chassis with power supply and one 50-pin TELCO
LE7312A-R2 _________ 12-slot 2U chassis with single load-sharing
capable power supply module and two 50-pin TELCO
LE7312A-PS-R2 _______12-slot 2U chassis with dual (2) load-sharing
capable power supply modules and two 50-pin TELCO
100Mbps “twister” Media Converter 7000 Modules:
LH7416C-SX-R2 ______ RJ-45 to SX multimode SC
LH7416C-SXST -R2_____ RJ-45 to SX multimode ST
LH7402C-TX-R2 ______ RJ-45 to Redundant TX
LH7403C-MMSC-R2 ___ RJ-45 to Redundant FX multimode SC
LH7404C-SMSC-R2____RJ-45 to Redundant FX singlemode SC
LH7403C-MMST -R2 ___ RJ-45 to Redundant FX multimode ST
LH7403C-SMST -R2 ____ RJ-45 to Redundant FX singlemode ST
LH7420C-SCSC-R2 ____FX multimode SC to FX singlemode SC
LH7420C-SCST -R2 ____ FX multimode SC to FX singlemode ST
LH7421C-STSC-R2 ____ FX multimode ST to FX singlemode SC
LH7421C-STST -R2 _____ FX multimode ST to FX singlemode ST
LH7414C-R2 _________ RJ-45 to FX multimode SC
LH7416C-R2 _________ RJ-45 to FX singlemode SC
LH7415C-R2 _________ RJ-45 to FX multimode ST
LH7416C-ST -R2 _______ RJ-45 to FX singlemode ST
LH7416C-40KM-R2 ___ RJ-45 to FX singlemode SC (40km)
10Mbps “twister” Media Converter 7000 Modules:
LE7402C-TX _________ RJ-45 to Redundant RJ-45
LE7313C-R2 _________ RJ-45 to Thinnet Coax
LE7313C-SC-R2 ______ RJ-45 to FL multimode SC
LE7314C-R2 _________ RJ-45 to FL multimode ST
LE7316C-R2 _________ RJ-45 to FL singlemode ST
LE7316C-MM-R2 _____ RJ-45 to FL multimode SMA
LE7302C ____________ TELCO to Dual RJ-45
LE7324C-SC _________ TELCO to Dual FL multimode SC
LE7324C ____________ TELCO to Dual FL multimode ST
LE7326C ____________ TELCO to Dual FL singlemode ST
Table of Contents
“twister”™ Media Converter 7000 Installation & User Guide
Introduction ................................................................................................... 5
Product Overview........................................................................................... 5
Installation Guide .......................................................................................... 8
STEP 1: Unpacking the Chassis & Accessories ............................. 8
STEP 2: Mounting the Chassis....................................................... 8
STEP 3: Setting the Switches and Jumpers .................................. 10
STEP 4: Installing “twister” 7000 Modules ................................. 12
STEP 5: Connecting to the Network ............................................ 14
STEP 6: Applying Power to the Chassis ...................................... 14
User Guide ................................................................................................... 17
“twister” 7000 Modules ............................................................... 18
100Mbps Specifications ................................................................ 19
“redundant twister” Modules .................................................... 20
MM-to-SM FX Modules .......................................................... 22
TX-to-FX Modules ................................................................... 23
10Mbps Specifications .................................................................. 24
“redundant twister” Module ...................................................... 25
Thinnet Coaxial BNC Module .................................................. 27
Fiber Optic Modules ................................................................. 28
TELCO .................................................................................... 29
Chassis Technical Specifications.................................................. 31
Operating Features of the Power Supply...................................... 32
Power Supply Service Instructions .............................................. 33
Link Loss Carry Forward (LLCF)................................................ 35
Straight/Cross Over RJ-45 Twisted-pair Cables .......................... 36
Topology Solutions ...................................................................... 37
“redundant twister”................................................................... 37
singlemode-to-multimode ....................................................... 37
10/100 mixed environment...................................................... 38
10/100 mixed environment with stand-alone “twisters” ......... 40
TELCO modules...................................................................... 41
Product Safety, EMC and Compliance Statements ...................... 42
4
“twister” Media Converter 7000 5
Overview
Introduction
Thank you f or choosing the “twister”™ Media Converter 7000.
The “twister” Media Converter provides a cost-effective means of integrating a mixed media environment. The information in this guide helps you to
install and start using your “twister” Media Converter 7000.
Your “twister”™ Media Converter 7000 offers transparent media conversion and provides an effective means for integrating coax, Category 3, 4, or
5 twisted-pair and singlemode or multimode fiber optic LAN segments into
either switched or shared Ethernet and Fast Ethernet
environments. All “twister” solutions provide media conversion with a low
bit delay. The modules reliably convert all signal activity from one cable
medium to the other ensuring accurate data flow across the network.
These IEEE 802.3 and 802.3u compliant media converters are compatible
with Ethernet and Fast Ethernet devices from other leading network
technology providers. This increases the flexibility of network configurations by ensuring reliable data transmission in multi-vendor, as well as
mixed media, environments.
Whether you are updating or expanding your existing network, the
“twister”™ Media Converter 7000 supports a wide range of configuration
needs. Each chassis unit supports multiple 10 and 100Mbps media types—
via “twister” modules—in any combination. In addition, the “redundant
twister”™ modules and dual load-sharing power supplies provide redundancy for uninterrupted network operation. While the “twister” Media
Converter 7000 chassis support media conversion for any 7000 Module,
only certain modules will work in conjunction with the TELCO connector
on the back of these chassis. Please refer to the section in this User Guide
titled “twister” 7000 Modules for a complete description of each module.
The “twister” Media Converter 7000 offers front accessible network
connections for ease of installation and maintenance. For high density
implementations, the units have rear-mounted 50-pin TELCO connectors
that provide connection capability for up to six (6) “twister” modules each.
6
The TELCO connection provides a convenient means of connecting to an
MDF-ready hub, switch or patch panel.
The “twister” Media Converter 7000 offers three models with TELCO
connectors. The LE7312A-PS-R2 is a 12-slot 2U chassis with dual 50-pin
TELCO connectors. This chassis is available with dual load-sharing power
supplies to ensure essential non-stop networking for high priority traffic
and business-critical applications. The LE7312A-R2 is a 12-slot 2U chassis
with a single power supply and dual 50-pin TELCO connectors. These
rack-mountable models fit standard 19” equipment racks and the 2U
chassis height provides housing for the maximum number of intelligent
“twister” modules. The LE7306A “twister” media converter, a
6-slot 2U chassis with a single power supply and a single 50-pin TELCO
connector, is designed for environments where the flexibility and functionality of a “twister” chassis is required but where a smaller number of slots
are needed. This unit is available with an optional wall-mountable bracket
for convenient attachment to a wall or other vertical surface.
The “twister” Media Converter 7000 provides the following key features:
• A Link Loss Carry Forward (LLCF) enable/disable switch is
installed on the modules* as an aid to troubleshooting a
remote connection. Refer to the section of this guide titled
Link Loss Carry Forward for more information.
• An MDI-II/MDI-X switch is installed on all TP ports.
**
• Fused power on each module protects the rest of the modules
in the chassis from a short circuit. The power (PWR) LED
on an affected module does not illuminate if the fuse is blown.
• Auto polarity support on all twisted-pair ports.
• “redundant twister” modules can be configured to operate
in Dynamic Recovery Mode (DRM) to ensure session integrity
and increased uptime, or in Network Select Mode (NSM) to
redirect traffic and add security through link isolation.
* Link Loss Carry Forward (LLCF) functionality is not provided on the LE7313C-R2 (BNC) or the
LE73XXC (TELCO) modules.
** This is not applicable to the LE7302C (TELCO) module.
“twister” Media Converter 7000 7
Related Documentation
Refer to the following documentation for additional specific information on
the “twister” Media Converter 7000:
• Media Converter 7000 “redundant twister”™ Modules
Installation & User Guide
• “twister”™ Media Converter 7000 Modules
Quick Reference
8 Installation Guide
2
Installation Guide
Follow the simple steps outlined in this section of the manual to install
and start using the “twister” Media Converter 7000 chassis.
Unpack the chassis and any accessories.
Check that the following components have been included:
• “twister” Media Converter 7000 chassis
• Power Cord (one each per power supply)
• Rackmounting Hardware
The following items are available separately:
• “twister” Modules
• Wall Mount Bracket and Hardware (LE7306A)
• Blank Panels for unused chassis slots
Your order has been provided with the safest possible packaging,
but shipping damage does occasionally occur. Inspect it carefully.
If you discover any shipping damage, notify the carrier and follow
their instructions for damage and claims. Save the original shipping
carton in case return or storage of the unit is necessary.
Mount the chassis in an appropriate location.
The LE7312A-PS-R2 and LE7312A-R2 chassis are designed to be
mounted in a standard 19-inch equipment rack. Use the
rackmounting hardware included with the unit to secure the
mounting brackets to the unit. Use the separate screws provided
with the equipment rack to mount the chassis on the rack. Be sure
that the mounting of the equipment in the rack does not impose a
hazardous condition due to uneven mechanical loading.
Caution. Elevated ambient conditions may occur in an enclosed
equipment rack or multi-rack assembly. Consideration should be
taken when installing the chassis to ensure that the exhaust fan at
the rear of the unit is not blocked—improper venting of the exhaust
fan may cause the unit to overheat.
TUV Compliance Note. For pluggable equipment, the socket outlet
must be installed near the equipment and be easily accessible.
Bei Geräten mit Steckanschluß muß die Steckdose nahe dem Gerät
angebracht und leicht zugänglich sein.
1
“twister” Media Converter 7000 9
DISCONNECT ALL POWER
SOURCES BEFORE SERVICING
AC IN 90-250V
50/60Hz 1A
POWER ACTIVE
Use anchors with a
minimum proof load
of at least 50lbs.
Because of its smaller size, the LE7306A chassis can be placed on
any flat surface. To save space and keep the installation area
organized, use the optional wall mount bracket. Follow these
simple instructions and refer to the diagram below:
• Place the bracket up against the wall and use a pencil to mark
where the anchors will be placed. Be sure that the chassis will
be mounted in such a way that fully exposes the front panel
for access to the network and power connections and does not
block the rear exhaust fan.
• Secure the bracket to the wall using anchors with a minimum
proof load of 50lbs.
• Place the LE7306A inside of the bracket and secure the chassis
to the bracket with the hardware provided.
10 Installation Guide
Set the Switches and Jumpers.
Locate the switches and jumpers.
The following illustrations show the orientation of the DIP
switches and LLCF jumpers for the 10Mbps and 100Mbps
“twister” modules.* These illustrations are generalized and not
specific to a particular module. Refer to the “redundant twister”
module diagrams in the User Guide section of this document for
more detailed information on the location and setting of the DIP
switches for these particular modules.
RJ-45
LLCF
Jumpers
MDI-X Position
Slide Switch
JP1
3 2 1
LLCF
OFF
ON
3
2
1
RJ-45
LLCF
Jumpers
Slide Switch
MDI-II Position (default)
MDI-X Position
MDI-II Position (default)
This is a generalized diagram of a “twister”
10Mbps module (with the exception of the
LE7313C-R2 BNC or LE73XXC TELCO modules)
and is not specific to any particular module.
This is a generalized diagram of a “twister”
100Mbps module (with the exception of the
LH740XC “redundant twister” modules) and is
not specific to any particular module.
3
* This is not applicable to the LE7313C-R2 (BNC) or the LE73XXC (TELCO) modules.
“twister” Media Converter 7000 11
MDI-II to MDI-X
All “twister” modules with twisted-pair ports* have an MDI-II to
MDI-X switch. This switch is positioned directly behind it’s
associated RJ-45 connector and allows simple setup in either
straight through (default) or crossover configurations.
When setting the MDI-II to MDI-X switch, observe the positioning of the following symbols:
• the parallel symbol (II) indicates a straight through or
parallel connection (default)
• the cross symbol (X) indicates a crossover connection.
These symbols are clearly marked on the printed circuit board.
Simply slide the switch in the direction of the appropriate
symbol. Use the following table as a guide:
A device that is wired straight through, needs one crossover connection:
If the cable is…
straight through
crossover
… the MDI-II to MDI-X Switch Setting should be
X
II
A device that is wired crossover, needs a parallel connection:
If the cable is…
straight through
crossover
… the MDI-II to MDI-X Switch Setting should be
II
X
Link Loss Carry Forward (LLCF)
**
LLCF functionality is incorporated on all “twister” modules with
the exception of the LE7313C-R2 (BNC) and LE73XXC TELCO
modules. Refer to the User Guide section titled Link Loss Carry
Forward for more information.
• LE731XC and LH741XC modules have a jumper for setting
the LLCF. Refer to the module diagrams in the User Guide
section of this document for more detailed information
regarding configuration of this jumper.
• LH740XC and LE7402C-TX “redundant twister”
modules have a DIP switch for setting LLCF. Refer to the
“redundant twister” module diagrams in the User Guide
section of this document for more detailed information
regarding the location and setting of this DIP switch.
* This is not applicable to the LE7302C (TELCO) module.
** The LLCF default setting is:
disabled
. Link Loss Carry Forward (LLCF) functionality is not provided on
the LE7313C-R2 (BNC) or the LE73XXC (TELCO) modules.
12 Installation Guide
Install the “twister” 7000 Modules.
Each chassis supports multiple 10 and 100Mbps media types—
via “twister” modules—in any combination. The modules offer
the ease of plug-and-play installation and are hot-swappable.
While these 7000 Series chassis support media conversion for
any Media Converter Module, only certain modules will work
in conjunction with the TELCO connector on the back of these
chassis.* A complete listing of available “twister” modules and a
short description of the supported media conversion can be
found in the front of this product guide. Please refer to the
section in the User Guide titled “twister” 7000 Modules for a
complete description of each module.
Before installing any module, please make note of the following:
• “redundant twister” modules have a set of DIP switches
located on the module board for setting user-selectable
configurability options for several modes of operation.
These DIP switches must be set before installing the
modules in the chassis. Please refer to the section in the
“redundant twister” Media Converter 7000
Installation & User Guide titled Set the DIP Switches for
more detailed information.
• Because of the size of the “redundant twister” fiber optic
modules, each TX-to-redundant FX module uses two slots
in the chassis. The TX-to-redundant TX module uses only
one slot.
• All “twister” modules must be firmly secured to the
chassis before network connections are made.
4
*
Only the LE7302C, LE7324C-SC, LE7324C, AND LE7326C Modules will
work in conjunction with the TELCO connector on the back of these chassis.
Refer to the USER GUIDE section titled
10Mbps TELCO Modules
for more
detailed information.
“twister” Media Converter 7000 13
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AC IN 90-250V
50/60Hz 1A
POWER ACTIVE
DISCONNECT ALL POWER
SOURCES BEFORE SERVICING
AC IN 90-250V
50/60Hz 1A
POWER ACTIVE
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AC IN 90-250V
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POWER ACTIVE
Card Guide
Blank Panel
Card Guide
Thumb Screw
100 BASE
“redundant twister”
™
MAIN
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PWR
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IMPORTANT!
Tighten thumb screw
to secure each module firmly
to chassis before making
network connections.
Follow these simple steps to install “twister” modules:
• Grasp a module by the front panel as shown.
• Insert the module into a slot making sure that both the top
and bottom of the card edges are lined up with the top and
bottom slot guides. Do not force the module into the chassis
unnecessarily. It should slide in easily and evenly.
• Slide the module in until the top and bottom edges of the
front panel are flush and even with the top and bottom edges
of the chassis.
• Secure the module to the chassis by turning the thumb screw
clockwise until snug.
• The module is now properly installed and ready for
connection to the network.
14 Installation Guide
Connect to the Network.
To connect the individual “twister” modules to the network,
refer to the appropriate section in the the User Guide section of
this manual.
• For more detailed information regarding the “redundant
twister” module, refer to the Media Converter 7000
“redundant twister” Modules Installation & User Guide.
Apply power to the chassis.
The “twister” Media Converter 7000 Power Supply Module
provides up to 60W of power to the chassis.
• The LE7306A is shipped with one factory-installed power
supply module. This module is user replaceable. Due to the
smaller chassis size, it cannot be upgraded for redundancy
or load-sharing.
• The LE7312A-R2 is shipped with one factory-installed
power supply module. This module is user replaceable.
The chassis can also be upgraded with a second power
supply for redundant non-stop operation.
• The LE7312A-PS-R2 is shipped with two factory-installed
power supply modules. This redundancy capability
provides essential non-stop operation to maximize network
reliability and minimize network downtime. Both modules
are user replaceable.
IMPORTANT
The Power Supply Module is an open frame-type power
supply — LIVE VOLTAGES ARE PRESENT — and poses
a danger if the module is installed improperly.
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5
6
•
Refer to the USER GUIDE section titled
Power Supply Service Instructions
for a complete description of the procedure to follow when replacing or
installing a Redundant Power Supply Module.
“twister” Media Converter 7000 15
Each power supply includes a standard North American 3-pin
power cord which is UL (USA), CSA or CUL (Canada) listed or
approved. For installation in regions outside North America,
replace the power cord with a cord approved by appropriate
safety agencies. Any cord must have a CEE-22 standard V
female connector on one end and meet IEC 320-030 specifications. European power cords must be harmonized and designated with a HAR marking on the outside of the cord jacket to
comply with the CENELEC Harmonized Document HD-21
When making power connections, connect the power cord to the
input jack located on the front of the chassis before making the
connection to the outlet or appropriate AC voltage source. If your
chassis is equipped with two power supply modules, simply
connect the individual power cords to separate power sources.
Be sure the switch is set to the ON position for proper operation.
DISCONNECT ALL POWER
SOURCES BEFORE SERVICING
AC IN 90-250V
50/60Hz 1A
POWER ACTIVE
Retaining Screw
Thumb Screw
ON/OFF Switch
Vent
LEDs
Power Receptacle
Caution. The fully loaded chassis is rated for 2A AC maximum
current. Ensure that the supply current available is sufficient to
power the chassis. Refer to front panel text for voltage/current
ratings. Reliable grounding of rackmount equipment should be
maintained. Particular attention should be given to power
supply connections other than direct connections to the branch
circuit (e.g. use of power strips).
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