®
ONline 17-Slot System
Concentrator Installation and
Operation Guide
Document Number 17-00417-3
Printed March 1995
Model Numbers: 5017C-LS
5017C
5017C with load sharing
3Com Corporation
118 Turnpike Road
Southborough, MA 01772-1886
U.S.A.
(508) 460-8900
FAX (508) 460-8950
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The Chipcom Multichannel Architecture Communications System is
registered under U.S. Patent Number 5,301,303.
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3ComFacts, Ask 3Com, CardFacts, NetFacts, and CardBoard are
service marks of 3Com Corporation.
3Com, LANplex, BoundaryRouting, LanScanner, LinkBuilder,
NETBuilder, NETBuilderII, ParallelTasking, ViewBuilder, EtherDisk,
Etherl\Link, EtherLink Plus, EtherLink II, TokenLink, TokenLink Plus,
and TokenDisk are registered trademarks of 3Com Corporation.
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Contents
How to Use This Guide
Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Structure of This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
3Com Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xvii
Reference Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xvii
Chapter 1 — Introduction
Introducing the ONline System Concentrator . . . . . . . . . . . . . . . . . . . . . . .1-1
Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
ONline System Concentrator Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Modular Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
TriChannel Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
Port-Switching Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
Fault-Tolerance Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
Backup Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
Load Sharing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
Backup Controller Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
Redundant Cable Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
Backup Concentrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10
Hot Swapping of Media Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11
Synchronous Backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12
Chapter 2 — Installation and Troubleshooting
Contents of the Shipping Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
FCC Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Site Selection Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
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Location Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Rack Mount Installation Requirements . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Table Top Installation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Installing the Cable Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
Cable Tray Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Cable Tray Table Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
Installing the ONline System Concentrator . . . . . . . . . . . . . . . . . . . . .2-11
Rack Mounting the ONline System Concentrator . . . . . . . . . . . . .2-11
Table Top Mounting the ONline Concentrator . . . . . . . . . . . . . . .2-13
Installing the Backup Power Supply (Optional) . . . . . . . . . . . . . . . . . .2-14
Selecting the Power Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . .2-17
Installing ONline Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19
Connecting Network Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19
Power Up and Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-20
Fan Operation Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-21
Power Supply Operation Verification . . . . . . . . . . . . . . . . . . . . . .2-21
Technical Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25
Where To Go From Here . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-26
Chapter 3 — Maintenance
Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Replacing the Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Replacing the Fan Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
ONline Module Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9
Other System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9
Appendix A — Specifications
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Regulatory Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
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Appendix B — Slot Usage Chart
Appendix C — Technical Support
On-line Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1
Email Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2
World Wide Web Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2
Support from Your Network Supplier . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2
Support from 3Com . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-3
Returning Products for Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-4
Accessing the 3Com MIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-4
3Com Technical Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-5
Index
ONline 17-Slot System Concentrator Installation and Operation Guide vii
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Figures
Figure 1-1.
Multiple 17-Slot Concentrator Environment . . . . . . . . . . . .1-2
ONline System Concentrator Rear View . . . . . . . . . . . . . . .1-3
ONline System Concentrator Front View . . . . . . . . . . . . . . .1-4
Modular ONline Configuration . . . . . . . . . . . . . . . . . . . . . .1-5
ONline System Concentrator Using Multiple Networks . . . .1-7
Redundant Cable Link Configuration . . . . . . . . . . . . . . . .1-10
Backup Concentrator Configuration . . . . . . . . . . . . . . . . .1-11
ONline System Concentrator Shipping Box Contents . . . . . .2-2
Rack Mount Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
Cable Tray Installation in Rack . . . . . . . . . . . . . . . . . . . . .2-10
Attaching the Rack Mount Flanges . . . . . . . . . . . . . . . . . .2-12
Chassis Mounted in Rack . . . . . . . . . . . . . . . . . . . . . . . . .2-13
Removing Fan Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14
Unplugging the Fan Unit . . . . . . . . . . . . . . . . . . . . . . . . .2-15
Power Supply Connectors . . . . . . . . . . . . . . . . . . . . . . . . .2-16
Installing the Backup Power Supply . . . . . . . . . . . . . . . . .2-16
Installed Backup Power Supply . . . . . . . . . . . . . . . . . . . . .2-17
Setting the Voltage Selector Switch . . . . . . . . . . . . . . . . .2-18
Network Cable Connections . . . . . . . . . . . . . . . . . . . . . . .2-20
Removing the Power Supply . . . . . . . . . . . . . . . . . . . . . . . .3-3
Unplugging the Power Supply . . . . . . . . . . . . . . . . . . . . . .3-4
Power Supply Plugs in ONline System Concentrator . . . . . .3-5
Backup Power Supply Installed . . . . . . . . . . . . . . . . . . . . . .3-6
Removing the Fan Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Unplugging the Fan Unit . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
Fan Unit Installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9
Figure 1-2.
Figure 1-3.
Figure 1-4.
Figure 1-5.
Figure 1-6.
Figure 1-7.
Figure 2-1.
Figure 2-2.
Figure 2-3.
Figure 2-4.
Figure 2-5.
Figure 2-6.
Figure 2-7.
Figure 2-8.
Figure 2-9.
Figure 2-10.
Figure 2-11.
Figure 2-12.
Figure 3-1.
Figure 3-2.
Figure 3-3.
Figure 3-4.
Figure 3-5.
Figure 3-6.
Figure 3-7.
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Tables
Table 2-1.
Steps for Installing the ONline System Concentrator . . . . . .2-6
Rack Mount Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Controller Module LEDs After Proper Power-Up . . . . . . . . .2-21
Troubleshooting with Controller Module LEDs . . . . . . . . . .2-22
Concentrator Slot Usage Chart . . . . . . . . . . . . . . . . . . . . . .B-1
Table 2-2.
Table 2-3.
Table 2-4.
Table B-1.
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How to Use This Guide
This guide explains how to install, operate, and manage the following
3Com ONline™ 17-Slot System Concentrators.
❑ 5017C
❑ 5017C with load sharing
❑ 5017C-LS
Keep this guide near the ONline System Concentrator
Audience
This guide is intended for the following people at your site:
❑ Network manager or administrator
❑ Hardware installer
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Structure of This Guide
This guide contains the following chapters:
Chapter 1, Introduction – Introduces the principal features of the ONline
System Concentrator and provides a front and rear view of the unit.
Chapter 2, Installation and Troubleshooting – Provides illustrated
procedures for installing and verifying the operation of the 17-Slot ONline
System Concentrator.
Chapter 3, Maintenance – Describes how to order and replace
serviceable parts on the ONline System Concentrator. These parts include
the power supply, backup power supply, and fan units.
Appendix A, Specifications – Provides product dimensions, power
requirements, and other specifications for the unit.
Appendix B, Slot Usage Chart – Provides a chart to record information
about which modules are installed in the 17 concentrator slots.
Appendix C - Technical Support – Lists the various methods for
contacting the 3Com technical support organization and for accessing
other product support services.
Index
ONline 17-Slot System Concentrator Installation and Operation Guide xiv
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Document Conventions
The following document conventions are used in this manual:
Convention
Courier text
Indicates
User input
Example
In the Agent Information Form,
enter MISin the New Contact
field.
System output
Path names
After pressing the Apply
button, the system displays
the message
Transmitting data.
Bold command
string
Before you begin, read the
readme.txt file located in
/ usr/ snm/ agents.
Italic text in braces
User-substituted Use the following command to
identifiers
show port details:
SHOW PORT {slot.all} VERBOSE
Capitalized text in
plain brackets
Keyboard entry Type your password and press
by the user
[ENTER].
Italics
Text emphasis,
Ensure that you press the Apply
document titles button after you add the new
search parameters.
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Convention
Note:
Indicates
Example
A Note. The
information is
important
Note: Use STP lobe
cables for your system.
Caution: A Caution. A
condition may
damage
Caution: Do not put
your installation
diskettes on a
software or
hardware
magnetic surface.
This may damage the
diskettes.
Warning: A Warning. A
condition may
Warning: Wear eye
protection when
performing these
maintenance
threaten
personal safety
procedures.
Related Documents
This section provides information on supporting documentation, including:
❑ 3Com Documents
❑ Reference Documents
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3Com Documents
The following documents provide additional information on 3Com
products:
17-Slot ONline System Concentrator Installation and Operation
Guide – Explains how to install, operate, and manage the 3Com ONline
17-Slot System Concentrator (Models 5017C-LS and 5017C with load
sharing).
6-Slot ONline System Concentrator Installation and Operation
Guide – Explains how to install, operate, and manage the 3Com ONline
6-Slot System Concentrator.
ONline Token Ring Management Module User’s Guide – Explains how to
install, operate, and use the 3Com ONline Token Ring Management
Module.
ONline Management Commands Guide – Provides an alphabetized
reference resource describing all ONline management commands.
For a complete list of 3Com documents, contact your 3Com representative.
Reference Documents
The following documents supply related background information:
Case, J., Fedor, M., Scoffstall, M., and J. Davin, The Simple Network
Management Protocol, RFC 1157, University of Tennessee at Knoxville,
Performance Systems International and the MIT Laboratory for Computer
Science, May 1990.
Rose, M., and K. McCloghrie, Structure and Identification of
Management Information for TCP/IP-based Internets, RFC 1155,
Performance Systems International and Hughes LAN Systems, May 1990.
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Introduction
1
This chapter briefly describes the capabilities and operation of the 3Com
ONline™ System Concentrator. Chapter 2 provides important information
for installing modules and verifying their operation.
If you are uncertain about legal network configurations when using the
ONline System Concentrator, refer to the appropriate ONline media module
manual.
Introducing the ONline System Concentrator
The ONline System Concentrator is a modular, fault-tolerant platform for
facility networks. The concentrator has a unique TriChannel® architecture
that allows it to run three network protocols concurrently. It is capable of
running Ethernet, Token Ring, and FDDI networks - all in the same
concentrator.
Ethernet connectivity is available on a variety of major cable types including:
❑ Fiber optic cable
❑ Unshielded and Shielded twisted pair wire
❑ Thin and Thick coaxial cable
Introduction 1 - 1
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Figure 1-1 shows a model system that includes each of these cable types. In
this diagram, an ONline Ethernet Repeater Module is connected to a
10BASE5 segment via an AUI cable and a transceiver. Also shown is the
physical connection between an ONline Ethernet Fiber Module and a
10BASE2 segment, via a fiber cable, fiber media access unit, and IEEE
repeater. Unshielded and shielded twisted pair connections to-the-desk are
also included in this sample configuration.
Figure 1-1. Multiple 17-Slot Concentrator Environment
Network segments attach to the concentrator through media modules you
install into the chassis. The ONline Controller Module, which provides
re-timing and re-transmission of received signals, must be installed in one of
the concentrator's seventeen slots. The remaining sixteen slots can be
configured with any combination of media modules.
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Back Panel
A power supply and DC fan unit are installed when you receive your
concentrator. There is an On/Off switch on the power supply. The power
supply should be powered down when you install or remove it. Note that
there is no need to power down the concentrator for installation or
removal of the media modules. Additionally, you can replace the fan unit
with an optional backup power supply to provide power redundancy.
Figure 1-2. ONline System Concentrator Rear View
Front Panel
The concentrator is shipped with 15 blank faceplates and two empty slots.
The two slots are left empty because you must install the ONline Controller
Module and at least one media module for the concentrator to be
functional. As you add media modules to your unit, remove blank
faceplates to provide additional slots for the new modules.
Introduction 1 - 3
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Figure 1-3. ONline System Concentrator Front View
A cable tray is provided with the concentrator so that cables you attach to
the media modules can be run under the unit and out the back − where
they will not be in the way. A rack mount kit is also provided for the
concentrator and for the cable tray so you can rack mount the entire unit.
ONline System Concentrator Features
This section describes the major features of the ONline System
Concentrator. The features include:
❑ Modular Design
❑ TriChannel® Architecture
❑ Port-Switching Technology
❑ Fault-Tolerance Capabilities
❑ Hot Swapping of Media Modules
❑ Synchronous Backplane
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Modular Design
The ONline Concentrator's modular design lets you add different media
modules (such as fiber, twisted pair, and coaxial) in any combination to
connect different types of media segments. A possible configuration is
shown in Figure 1-4. You can link segments of different protocols using
Token Ring, FDDI, bridging and routing modules.
Every concentrator requires one Controller Module that controls
communications between all modules. In addition, a Network
Management Module provides sophisticated monitoring and control of the
modules in the concentrator. As a rack-mounted unit, the ONline
Concentrator can be connected to patch panels to simplify and manage
your network cables.
Figure 1-4. Modular ONline Configuration
Introduction 1 - 5
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TriChannel Architecture
The ONline System Concentrator's TriChannel architecture lets you run
Ethernet, Token Ring, and FDDI networks, all in the same concentrator.
This allows a single ONline unit to do the work of three conventional hubs.
You can also run multiple Ethernet networks or mixture of Ethernet, Token
Ring, and FDDI networks in any combination you want. This architecture is
shown in Figure 1-5.
Any module you add to the concentrator can be assigned to any of three
networks on its backplane and can be easily moved to another backplane
network using either an on-board dip switch or remote network
management.
Additionally, any module can be set to “isolated” mode whereby it acts as
an isolated network - not connected to the concentrator backplane. This
mode lets you isolate users from the main network. This can be useful for
security or as a temporary situation to prevent traffic from contaminating
the network (for example, if some users are conducting network tests or
running at very high loads.)
Port-Switching Technology
Available port-switching modules allow you to assign any port to any
backplane network using a network management command. This allows
you to perform moves, adds, and changes at the network console, saving
costly and time-consuming trips to the wiring closet. It also allows you to
get additional bandwidth on demand by switching users to lower volume
networks during peak traffic periods.
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Figure 1-5. ONline System Concentrator Using Multiple Networks
Introduction 1 - 7
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Fault-Tolerance Capabilities
The ONline System Concentrator provides fault tolerance through
redundant features, such as an optional backup power supply, backup
controller module, redundant cable links, and backup concentrator
capability.
Backup Power Supply
An optional second power supply can be used to backup the primary
power supply in case of a power failure. Should the primary power supply
fail, the backup power supply takes over automatically. In addition, once a
backup power supply has been installed, you can replace a failed primary
power supply without shutting down the system.
Load Sharing
The load-sharing function provides uninterrupted power to modules
installed in a concentrator with two power supplies. If the active power
supply fails, the concentrator automatically switches to the other power
supply without interrupting the network.
The following ONline 17-Slot System Concentrators have load-sharing
capability:
❑ Model 5017C-LS
❑ Model 5017C with load-sharing upgrade
To determine if your model 5017C concentrator has load-sharing hardware,
check the rear of the concentrator chassis for a label reading “Upgraded
w/30-0286.” If this label is present, the concentrator has received the
load-sharing upgrade.
In order for load sharing to work, the Fault-Tolerant Controller Module
model 5000M-RCLS must be installed. This controller monitors the
concentrator's load-sharing function.
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Backup Controller Module
The controller is vital to the system because it performs important functions
including:
❑ synchronizing all modules
❑ monitoring concentrator conditions (temperature, power supply
status, etc.)
❑ recognizing failures
❑ clocking and timing to the ONline Concentrator backplane
By using two 3Com Fault-Tolerant Controller Modules (5000M-RCLS) in
your concentrator you can protect these critical tasks if a controller fails.
Note: You cannot use the 5000M-RCTL or 5000M-CTL controller
in a load-sharing concentrator (Model 5017C-LS or Model
5017C with load-sharing upgrade).
Redundant Cable Links
Cable breaks or failures are the most common problem in any network.
Using the ONline Ethernet Fiber Module in your ONline System
Concentrator enables you to implement full cable redundancy for your
network's backbone. Thereafter, if one port should fail, or if a cable is
disconnected or cut, the backup port will take over in 100 milliseconds. A
sample redundant network connection is shown in Figure 1-6.
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Figure 1-6. Redundant Cable Link Configuration
Backup Concentrator
A second concentrator or 3Com Fiber Ethernet Star Coupler may be used
to backup the primary concentrator in a star-wired network. This provides
full fault tolerance for a backbone cable plant.
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Figure 1-7. Backup Concentrator Configuration
Hot Swapping of Media Modules
Media modules can be added, removed, and reconfigured without
powering down the ONline System Concentrator or affecting the rest of
the network. This means that you can add entire new segments or make
minor system adjustments during normal working hours without
interrupting the entire system.
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Synchronous Backplane
The ONline System Concentrator backplane is designed with all passive
components to achieve the maximum reliability. The synchronous
backplane allows the concentrator to be connected (using the 3Com
ONline Fiber Module) without the need for internal repeaters. This avoids
the limitations of the Ethernet four-repeater rule and lets you connect up to
23 concentrators serially, without the need for an intervening repeater or
bridge.
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Installation and
Troubleshooting
2
This chapter describes how to install the ONline System Concentrator, how
to install ONline modules, and how to install the optional backup power
supply into your ONline unit.
Warning: Do not turn the concentrator's power supply switch on until
you are instructed to do so in the following procedures.
The information and procedures contained in this chapter
are to be used only by service personnel to install and
maintain the ONline 17-Slot System Concentrator.
Contents of the Shipping Box
The ONline System Concentrator is a chassis that enables installation of
media modules for network connection. The unit is shipped complete with
the following parts:
❑ Chassis containing:
–
–
single power supply
fan unit
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–
15 blank faceplates
❑ Chassis rack mount kit
❑ Cable tray with rack mount kit
❑ ONline Fault-Tolerant Controller Module and ONline Fault-Tolerant
Controller Module Installation Guide
❑ Power cord
❑ This ONline System Concentrator Installation and Operation Guide
The power cord and hardware items are shown in Figure 2-1.
Concentrator
ONline System
Rack Mount
Power Cord
Cable Tray
Rack
Mount Kit
Controller
Figure 2-1. ONline System Concentrator Shipping Box Contents
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If any of these items are damaged or missing, contact your local supplier or
a 3Com service representative.
3Com suggests you keep the carton and anti-static shielding bag in which
your unit was shipped in case you later want to repackage the unit for
storage or shipment.
We also suggest that you record the serial number of your Controller
Module. We have provided a log for this and other information specific to
modules under the Slot Usage Chart in Appendix B near the end of this
manual.
FCC Regulations
FCC regulations require that blank faceplates cover slots that are not being
used. To comply with this regulation, the concentrator is shipped with 15
blank faceplates and two empty slots. These two slots are left empty
because the ONline Controller Module and at least one media module must
be installed for the concentrator to be functional.
Caution: Do not turn the concentrator's power supply switch on
until you have:
❑ verified that the selected site meets the installation requirements
outlined in the following pages
❑ completed each of the steps outlined in Table 2-1.
–
Be sure to verify that the correct voltage level has been
selected. An improper setting may damage the power
supply.
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Site Selection Considerations
The concentrator can be placed almost anywhere within your company,
including offices and computer rooms. In general, we recommend
installation in a wiring closet. The unit has been designed for rack
mounting and comes with all the necessary hardware.
Location Requirements
The area where you install the ONline System Concentrator must meet the
following conditions:
❑ Temperature between 0° to 50° C (32° to 122° F)
❑ Relative humidity less than 95%, non-condensing
❑ AC power source within 6 feet (2 meters). Note that for installation
to have true backup power, two independent AC power sources are
required
❑ The table or rack where the unit is installed should be level and not in
direct sunlight or in an excessively dusty location
Ventilation
The concentrator fan units draw air in through the front and bottom of the
chassis and exhausts air out the back. Make sure there are at least 6 inches
(15 centimeters) between the fan vents at the back of the unit and the
nearest surface to allow adequate airflow for cooling. This minimum
distance is also required for access to the rear of the unit for maintenance.
The cable tray that comes standard with the concentrator helps prevent a
tangle of cables at the front of the concentrator and also permits the
required airflow to the unit. Make sure the cable tray is installed below the
unit correctly before installing the concentrator.
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Caution: The concentrator should have two fans running at all
times to cool the unit properly. You should therefore
have: (A) a power supply (with built-in fan) and a fan
unit installed or (B) two power supplies installed.
Power Requirements
3Com recommends using a 15 ampere electrical wire (branch circuit) to
supply power to the concentrator. This circuit must be grounded to a
safety ground (protected earth ground), not to neutral that carries current
back to the transformer. Do not use the electrical conduit pipe as the only
means of grounding.
Rack Mount Installation Requirements
For rack mount installation of the ONline System Concentrator you need a
standard nineteen-inch EIA configured rack. The rack and its environment
also should meet the following specifications:
❑ If the rack has an open back and sides:
–
–
the rack must be bolted to the floor
the top of the rack may need to be braced to the wall
❑ the rack must be grounded
❑ there must be 10.5" (26.7 cm) (6U) of vertical space in the rack for
each 17-slot concentrator
❑ the unit location in the rack must be less than 6 feet (2 meters) from
the nearest AC outlet
❑ patch panels should already be installed in the rack for easier cable
management
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Table Top Installation Requirements
For table top or shelf mount installation of the ONline System Concentrator
you must make sure the table or shelf can support 100 pounds (45 kg) for
a fully loaded 17-slot concentrator. (The concentrator itself, fully loaded
and with cable tray, weighs almost 75 pounds/34 kilograms.) The
table/shelf also must be less than 6 feet (2 meters) from the nearest AC
outlet.
To ensure proper airflow to the unit, you should leave at least 1.75"
(4.45cm) of space below the concentrator (provided by the installed rubber
feet) and by installing the cable tray below the concentrator.
Installation
Table 2-1 provides a quick description of the steps you must follow to install
the ONline System Concentrator as well as reference to the section in this
manual where the step is described. It is important that you perform the
steps in the order indicated, noting that Step 3 is optional.
Table 2-1. Steps for Installing the ONline System Concentrator
Step
Action
Section
1
Install the cable tray into a
rack or place it on a table
top.
“Installing the Cable Tray”
2
3
Install the concentrator unit “Installing the ONline System
into a rack or place it on a
table top.
Concentrator”
Install the backup power
supply in the concentrator.
“Installing the Backup Power
Supply (Optional)”
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Table 2-1. Steps for Installing the ONline System Concentrator
(Continued)
4
5
6
7
Set up the power supply.
“Selecting the Power Supply
Voltage”
Install the ONline Controller “Installing ONline Modules”
Module in the concentrator.
Install media modules in the “Installing ONline Modules”
concentrator.
Connect the network
cables to the media
modules.
“Connecting Network Cables”
“Power Up and Verification”
8
Power up all network
devices and verify the
installation.
Installing the Cable Tray
The cable tray that comes standard with the concentrator helps to manage
the cables that run from the front of the unit so they are fed under the unit
and out through the back. The tray also provides the required space
between the bottom of the unit and the next device in the rack (or the top
of the table) so there is adequate air flow to cool the unit.
Caution: If you choose not to use the cable tray beneath your
unit, you must ensure that 1 3/4" (4.45 cm) of space is
open below the ONline unit to ensure adequate
incoming airflow (provided by the installed feet).
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Cable Tray Rack Mounting
To install the concentrator in a rack, first install the cable tray and then
install the concentrator above the tray. The cable tray can be mounted in
four separate configurations in your rack depending on your preference.
The options are described in Table 2-2 and shown in Figure 2-2.
Table 2-2. Rack Mount Settings
Option
Rack Setting
Function
1
Flush Mount
Flush mounts the unit to the front of
the rack.
2
3
4
1/2" Recess
Recesses the unit 1/2" (1.3 cm) from
the front of the rack.
2 1/8" Recess
2 3/4" Recess
Recesses the unit 2 1/8" (5.4 cm) in
a rack.
Recesses the unit 2 3/4" (7.0 cm) in a
rack.
Note: The ONline System Concentrator is 18.3" (46.5 cm) deep.
Some shallow rack cabinets may only allow you to flush
mount the unit. In addition, make sure you mount the unit
so that cables connected to the media modules have
enough room to bend (especially important for fiber
cables).
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Figure 2-2. Rack Mount Positions
Follow the steps below to mount the cable tray in your rack:
1. Attach the two rack mount flanges to the cable tray in the position
you want as shown in Figure 2-2 using the eight (8) provided 8-32 x
1/4" flathead screws - four per side.
Note: You must tighten the screws completely to be flush
with the rack mount flanges so the tray will fit in the
rack.
2. Select a vacant position in the rack that is at least 10.5 inches (26.7
cm) from the top of the rack or the next higher unit in the rack.
3. Install the provided clip nuts onto the front of the rack where you
want to attach the tray.
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Note: The function of the clip is to hold the nut in place behind
the rail. Be sure to install the clip onto the rail so that the
nut is centered behind the hole through which you plan to
insert the screw.
4. Place the tray in the rack and attach to the clip nuts through the front
of the rack using the four (4) 10-32 x 5/8" truss-head screws and as
shown in Figure 2-3.
Figure 2-3. Cable Tray Installation in Rack
Cable Tray Table Mounting
To install the concentrator on a table top or on a shelf, place the cable tray
on the surface first and then place the concentrator on top of the tray.
Note that the four rubber feet must be installed on the concentrator before
it is placed on the table top or on top of the cable tray. The feet fit into the
four holes in the cable tray, which prevents the concentrator from moving.
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Installing the ONline System Concentrator
The ONline System Concentrator can be placed on top of a table or a shelf,
or mounted in a rack. Make sure the cable tray has been installed first on
the table or in the rack (or that 1 3/4" (4.5 cm) of vertical space has been
provided below the unit for air flow) and that the location meets all the
environmental considerations specified earlier in this chapter.
Caution: 3Com recommends that two people install the unit
since it weighs 38 lbs (17 kg) with one power supply
and 46 lbs (24 kg) with the backup power supply
installed.
3Com also recommends installing the backup power supply
prior to rack mounting the unit (see the section titled
Installing the Backup Power Supply later in this chapter). In
some rack cabinets, the rear of the cabinet may interfere
with installation or removal of the power supply and fan.
The ONline System Concentrator can be mounted in four different
configurations in the rack. Use the same rack settings for both the cable
tray and the concentrator. If you are not installing the cable tray in the
rack, you should select the concentrator mount setting at this time. Refer
to Table 2-2 and Figure 2-2 in the “Cable Tray Rack Mounting” section for
specifics about the four mounting settings.
Follow the steps below to mount the concentrator in your rack:
1. Attach the two rack mount flanges to the ONline concentrator unit in
the position you want as shown in Figure 2-4 using the eight (8)
provided 8-32 x 1/4" flathead screws - four per side.
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Caution: You must use the supplied 8-32 x 1/4" screws to attach
the rack mount flanges. A longer screw may extend
too far into the ONline chassis and disrupt the
installation of modules.
Figure 2-4. Attaching the Rack Mount Flanges
2. Install the provided clip nuts onto the front of the rack where you
want to attach the unit. See Figure 2-3 for proper orientation.
3. Slide the unit in the rack above the installed cable tray until the rack
mount flanges seat flush to the front of the rack.
Caution: While mounting the concentrator, do not leave the unit
rack mounts may not support a fully-loaded
concentrator.
4. Secure the unit to the rack with the four (4) 10-32 x 5/8" truss-head
screws as shown in Figure 2-5.
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Figure 2-5. Chassis Mounted in Rack
Table Top Mounting the ONline Concentrator
You can set the ONline Concentrator directly on a table top or shelf that
can support at least 100 pounds (45 kg). A fully loaded concentrator
weighs about 75 lbs (34 kg). 3Com recommends you set the unit on top of
the ONline cable tray as the cable tray provides a central area for cable
management and provides the required 1 3/4" (4.5 cm) of clearance for
sufficient air flow. Regardless of whether the cable tray is used or not, the
four (4) rubber feet must remain on the bottom of the unit.
If the cable tray is used, place the ONline unit on top of the cable tray and
insert the rubber feet from the unit into the holes in the cable tray, which
stabilizes the unit on the tray.
If the cable tray is not used, place the unit on the table or shelf.
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Installing the Backup Power Supply (Optional)
Install the backup power supply in the ONline System Concentrator (if
ordered). This power supply provides power redundancy if the primary
power supply should fail. Skip this section if you do not have a backup
power supply.
To install the backup power supply, you must first remove the fan unit from
the power supply slot in the back of the unit. Follow the steps below to
install the backup power supply:
1. Remove and save the four screws that attach the fan unit to the rear
of the concentrator as shown in Figure 2-6.
Figure 2-6. Removing Fan Unit
2. Carefully remove the fan unit and disconnect the fan unit wiring
harness from the connector inside the base of the ONline unit as
shown in Figure 2-7. Save this fan unit in case a power supply should
fail at a later time and you need to reinstall the fan unit.
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Figure 2-7. Unplugging the Fan Unit
Before you install the new power supply, check the label on the inside of
the power supply bay that explains where each of the seven power leads
from the power supply are connected in the concentrator chassis.
Power leads labeled P7, P8, and P9 fit in the back three raised connectors
and they are “keyed” so they can be inserted only in the correct
connector and only in one direction. Power leads labeled P10, P11, P12,
and P13 fit in the front four recessed connectors and can be inserted in
only one direction. These connectors are shown in Figure 2-8.
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Figure 2-8. Power Supply Connectors
3. Hold the backup power supply in one hand while using your other
hand to plug in the seven (7) leads from the power supply as shown
in Figure 2-9.
Figure 2-9. Installing the Backup Power Supply
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4. Make sure the cable is pushed up to the right side and then slide the
power supply into the back of the concentrator as shown in
Figure 2-10. Then fasten with the four (4) screws you removed
earlier from the fan unit.
Figure 2-10. Installed Backup Power Supply
Selecting the Power Supply Voltage
Before you plug in the power cord to the power connector on the power
supply (and to the backup power supply, if you have one), you must verify
that the voltage selector is correctly set for your country line voltage.
Caution: An incorrect voltage setting can damage the power
supply.
1. Set the power switch to the Off (O) position.
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2. Use a flat-blade screwdriver to move the voltage selector switch so
the setting that is appropriate for your country's line voltage is
showing: 100/120 Volts or 220/240 Volts, as shown in Figure 2-11.
Figure 2-11. Setting the Voltage Selector Sw itch
3. Plug in the power cord to the power connector on the back of the
concentrator and connect the other end to an outlet. If you installed
a backup power supply, make sure that power cord is connected to
an outlet on an independent circuit from that used for the primary
power supply.
The power receptacle on the concentrator is an approved IEC
connector. Make sure the power cord you use is appropriate for your
country line voltage:
❑ For 100/120 Volt operation, use only a power cord rated for 10
Amps, 125 Volts.
❑ For 220/240 Volt operation, use only use a power cord rated for
10 Amps, 250 Volts.
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Warning: DO NOT use a 3-to-2 pronged adapter at the outlet since
this may result in electrical shock and does not provide
adequate grounding.
Installing ONline Modules
Warning: Only service personnel should install ONline modules.
Install the ONline Controller Module in the concentrator as described in the
ONline Controller Module Installation Guide provided with the Controller
Module.
Install any ONline media modules in the ONline System Concentrator as
described in the manual provided with each module. Note that you do not
need to turn off the concentrator when installing additional modules to
your concentrator.
Use the chart in Appendix B to label the location of each module in the
concentrator. At least one media module must be installed along with the
Controller Module to make the concentrator functional.
Connecting Network Cables
Connect the network cables between concentrators, patch panels, and
transceivers.
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Figure 2-12. Netw ork Cable Connections
Power Up and Verification
This section tells how to power up the concentrator and verify that it is
working correctly.
Switch the power supply On/Off switch to the On (| ) position.
The Power Supply LED(s) on the ONline Controller Module light when the
unit is powered up correctly. The verification procedure is split into the
following areas:
❑ fan operation
❑ power supply operation
❑ network operation
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Fan Operation Verification
To verify that the fan unit and the power supply fan are functioning
correctly you need to visually inspect the fan unit(s) on the rear of the
concentrator to make sure they are turning and that nothing is blocking
Power Supply Operation Verification
Verify that the LEDs on the Controller Module appear as defined in
Table 2-3 to check the operation of the power supply.
Table 2-3. Controller Module LEDs After Proper Power-Up
LED
Proper State
Primary Power
Backup Power
On.
On. A backup power supply is installed.
Off. No backup power supply is installed.
Off.
Temperature (TEMP)
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If any of these LEDs are not lit as shown in this chart, refer to Table 2-4 to
troubleshoot the problem.
Table 2-4. Troubleshooting with Controller Module LEDs
Possible
Problem
Troubleshooting
Suggestions
LED
State
Primary
Power
Off
The Primary
Power LED is
broken.
Press the LED Test button
to verify that the LED is
working properly.
The primary
power supply
is not properly
installed.
Reinstall the primary
power supply and turn it
on.
Steady
Blinking
The primary
power supply
has failed.
Verify that the outlet is
supplying power.
Verify that the voltage
selection switch is set to
the correct position for
your country's line
voltage.
Verify that the power
cord is plugged in at
both ends and that the
cord is appropriate for
your country's line
voltage.
Verify that the power
switch is turned on.
Replace the power
supply.
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Table 2-4. Troubleshooting with Controller Module LEDs
(Continued)
Possible
Problem
Troubleshooting
LED
State
Steady
blinking
(cont.)
Suggestions
Primary
Power
(cont.)
The primary
power supply
is not properly
installed.
Reinstall the primary
power supply and turn it
on.
Two blinks,
then a pause
(in unison
with Backup
Power LED)
The power
If a management module
is installed, the
concentrator should
recover automatically
from this condition. If it
doesn't, reset the
load-sharing
hardware is in
an error state.
concentrator using the
RESET CONCENTRATOR
command. If this fails to
correct the condition,
turn both power
supplies OFF, then ON
again.
If a management module
is not installed, turn both
power supplies OFF, then
ON again.
Backup
Power
Off
The Backup
Power LED is
broken.
Press the LED Test button
to verify that the LED is
working properly.
The backup
power supply
is not properly
installed.
Reinstall the backup
power supply and turn it
on.
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Table 2-4. Troubleshooting with Controller Module LEDs
(Continued)
Possible
Problem
Troubleshooting
LED
State
Steady
blinking
(cont.)
Suggestions
Backup
Power
(cont.)
The backup
power supply
has failed.
See Primary Power LED
suggestions for same
State and Possible
Problem (above).
The backup
power supply
is not properly
installed.
Reinstall the backup
power supply and turn it
on.
Two blinks,
then a pause
(in unison
with Primary
Power LED)
The power
See Primary Power LED
suggestions for same
State and Possible
load-sharing
hardware is in
an error state.
Problem (above).
Temp
Blinking
The
Verify that the fan units
temperature in are working and nothing
the is blocking airflow from
concentrator is the front and bottom of
too high.
the concentrator.
Verify at least 1 3/4"of
space below the
concentrator for proper
air flow.
Lower the temperature in
the room.
Active
Off
The module is
in standby
mode.
Verify that the Standby
LED is illuminated.
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Table 2-4. Troubleshooting with Controller Module LEDs
(Continued)
Possible
Problem
Troubleshooting
Suggestions
LED
State
The Active LED Press the LED Test button
is broken.
to see if the LED is
working.
Standby
Off
The module is
Verify that the Active LED
in active mode. is illuminated.
The Standby
Press the LED Test button
LED is broken.
to see if the LED is
working.
Blinking
There is a
hardware
failure in the
Standby
Reset the module. If this
action does not correct
the problem, install the
module in another slot.
module.
If necessary, replace the
module and contact
3Com Customer
Support Organization.
See Technical Assistance
to follow.
Technical Assistance
You can receive assistance for installing and troubleshooting the 17-Slot
concentrator by calling your dealer or 3Com Customer Support. Be
prepared to supply a representative with the following information:
❑ a description of the problem
❑ the steps you have taken to try and correct the problem
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❑ the configuration of your concentrator
❑ the screen information reporting the SHOW DEVICE command (if you
have an ONline management module installed in the concentrator)
Refer to Appendix C for instructions how to contact Technical
Support for your product.
Where To Go From Here
Once you have made the necessary concentrator connections, and have
verified that communication has been established between all segments
connected to the concentrator, no further installation procedures are
required. Chapter 3, Maintenance, discusses what to do in the event that
the fan unit or power supply needs to be replaced.
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Maintenance
3
This chapter describes routine maintenance designed to keep your ONline
System Concentrator working at its best. It also explains how to replace a
failed power supply or fan unit.
This chapter explains the following maintenance procedures:
❑ Routine Maintenance
❑ Power Supply Replacement
❑ Fan Unit Replacement
❑ ONline Module Maintenance
❑ Other System Components
Warning: There are no serviceable parts on either the power supply
or the fan unit. If either of these parts fail, remove them as
described in this chapter and return them to your reseller or
to 3Com Corporation. You should keep replacement
power supply and fan units at your site so they are available
if needed.
Maintenance 3 - 1
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Routine Maintenance
You should inspect your equipment to make sure that all of the following
are true:
❑ all the blank faceplates are on
❑ the fans are running
❑ there are no obstructions to the ventilation on the concentrator
❑ the ONline Controller Module and media module LEDs are registering
correctly
Replacing the Power Supply
Both the primary and backup power supplies in the ONline System
Concentrator are removed and installed in exactly the same manner. If a
power supply should fail and switch over automatically to the backup
power supply (optional) you can replace the failed power supply while the
unit is operating - without disrupting network operation.
Caution: Improper installation of the power supply could
damage the power supply.
Follow the steps below to replace a power supply unit:
1. Switch Off the failed power supply, then unplug the power cord from
both the wall and from the back of the power supply.
2. Remove and save the four screws that attach the power supply to the
rear of the concentrator as shown in Figure 3-1.
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Figure 3-1. Removing the Pow er Supply
3. Carefully pull the power supply out from the concentrator and
disconnect the seven (7) power leads from the connectors inside the
base of the ONline unit as shown in Figure 3-2.
Maintenance 3 - 3
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Figure 3-2. Unplugging the Pow er Supply
Note: Before you install the new power supply, check the label on
the inside of the power supply bay that explains where
each of the seven power leads from the power supply are
connected in the concentrator chassis.
Power leads labeled P7, P8, and P9 fit in the back three
raised connectors and they are “keyed” so they can be
inserted only in the correct connector and only in one
direction. Power leads labeled P10, P11, P12, and P13 fit in
the front four recessed connectors and can be inserted in
only one direction.
4. Pick up the new power supply and plug in the seven (7) power leads
from the power supply as shown in Figure 3-3.
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5. Make sure the cable is pushed up to the right side and slide the
power supply into the back of the concentrator and fasten it with the
four (4) screws you removed from the defective unit as shown in
Figure 3-4.
Maintenance 3 - 5
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Figure 3-4. Backup Pow er Supply Installed
6. Set the voltage selection switch on the back of the new power supply
to the same setting as the old power supply (or as explained in the
“Selecting the Power Supply Voltage” section in Chapter 2) and turn
the power switch to the Off (0) position.
7. Plug in the power cord to the power supply and to the wall outlet,
then turn the power switch to the On (| ) position.
8. Check the power supply LEDs on the controller module to verify that
the new power supply is working correctly. Make sure the fan on the
power supply is running.
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Replacing the Fan Unit
A fan installed in either the left or right bays is removed or installed in
exactly the same manner as the power supply. Follow the steps below to
replace a fan unit:
Caution: The concentrator must have two fans running at all
times to cool the unit. This is achieved through the
with the concentrator, or by having two power supplies
installed.
1. Remove and save the four screws that attach the fan to the rear of
the concentrator as shown in Figure 3-5.
Figure 3-5. Removing the Fan Unit
Maintenance 3 - 7
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2. Carefully pull the fan unit out from the concentrator and disconnect
the wiring harness from the plug inside the base of the ONline unit as
shown in Figure 3-6.
Figure 3-6. Unplugging the Fan Unit
3. Pick up the new fan unit and plug the fan power lead in the same
connector in the base of the ONline unit from which you removed
the old fan (plug P0).
4. Slide the new fan unit into the back of the concentrator and fasten it
to the unit with the four (4) screws you removed from the defective
unit as shown in Figure 3-7.
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Figure 3-7. Fan Unit Installed
ONline Module Maintenance
Refer to the ONline installation guides that come with the modules for
installation and operation information.
Other System Components
For maintenance other than hot swap of power supply, fan, and modules
described previously in this section, the following applies:
Caution: This unit may have one or two power supply cords.
Disconnect all power supply cords before servicing to
avoid electrical shock.
Maintenance 3 - 9
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Vorsicht: Dieses gerät hat eine oder zwei netzverbindungen. Vor
wartung des gerätes alle netzstecker ziehen um
elektroschock zu vermeiden.
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Specifications
A
General
Network Protocols Supported:
Ethernet/IEEE 802.3 over various media
IEEE 802.5 Token Ring over various media
ANSI FDDI
Environmental
Operating temperature: 0° to 50° C (32° to 122° F)
Storage temperature: -30° to 65° C (-22° to 149° F)
Operating humidity: less than 95%, non-condensing
Specifications A - 1
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Mechanical
Dimensions: 17.5"W x 18.3"D x 8.75"H (44.5 cm x 46.5 cm x 22.2 cm)
Weight: unloaded, with one power supply: 38 lb. (17 kg.)
unloaded, with two power supplies: 46 lb. (21 kg.)
loaded, with two power supplies: 75 lb. (34 kg.)
Power Source
90-132 VAC, 6 Amps
180-264 VAC, 3 Amps, 47-63 Hz
325 Watts
1700 BTU/hr
Regulatory Compliance
Safety: UL, CSA, and TUV certified.
Emissions: FCC/A, VDE/B, and VCCI/1 certified.
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Accessories
Cable Management Tray (5000CT): 17.5"W x 18.3"D x 1.75"H
(44.5 cm x 46.5 cm x 4.5 cm)
8 lb. (3.6 kg.)
Rack-Mount Kit (5017RM): 2.5 lb. (1.2 kg.)
Backup Power Supply (5017PS-325): 8 lb. (3.6 kg.)
Front Cover Panel (5017FC): .5 lb. (.23 kg.)
Specifications A - 3
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Slot Usage Chart
B
The ONline System Concentrator has seventeen slots, sixteen of which are
available slots for installing media modules (one slot is occupied by the
ONline Controller Module). The slot on the far left is slot number 1 and
runs to slot 17 on the far right. Use the chart on the next two pages to
keep track of the following:
❑ which module is installed in each slot
❑ which network (channel) each module is set for (or if it is isolated)
❑ any general remarks, such as module serial number or module
specific configuration settings
Store any other information on this chart that you think will be helpful
when adding new modules or when diagnosing network questions.
Table B-1. Concentrator Slot Usage Chart
Module
Type
Netw ork (#
or Isolated)
Slot
Remarks
1
2
Slot Usage Chart B - 1
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Table B-1. Concentrator Slot Usage Chart (Continued)
Module
Type
Netw ork (#
or Isolated)
Slot
Remarks
3
4
5
6
7
8
9
10
11
12
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Table B-1. Concentrator Slot Usage Chart (Continued)
Module
Type
Netw ork (#
or Isolated)
Slot
Remarks
13
14
15
16
17
Slot Usage Chart B - 3
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Technical Support
C
3Com provides easy access to technical support information through a
variety of services. This appendix describes the following services:
❑ On-line Technical Services
❑ Support from Your Network Supplier
❑ Support from 3Com
❑ Returning Products for Repair
On-line Technical Support
3Com offers worldwide product support through the following on-line
systems:
❑ Email Technical Service
❑ World Wide Web Site
Technical Support C - 1
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Email Technical Support
You can contact the Integrated Systems Division (formerly Chipcom) on the
Internet for technical support using the e-mail address
techsupp@chipcom.com.
World Wide Web Site
You can access the latest networking information on the 3Com World
Wide Web site by entering our URL into your Internet browser:
This service features news and information about 3Com products,
customer service and support, the 3Com latest news releases, selected
™
articles from 3TECH , the 3Com award-winning technical journal, and
more.
You can contact the Integrated Systems Division on the World Wide Web
by entering our URL into your Internet browser:
There are links between both WWW pages to view information from all
3Com divisions.
Support from Your Network Supplier
If additional assistance is required, contact your network supplier. Many
suppliers are authorized 3Com service partners who are qualified to provide
a variety of services, including network planning, installation, hardware
maintenance, application training, and support services.
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When you contact your network supplier for assistance, have the following
information ready:
❑ Diagnostic error messages
❑ A list of system hardware and software, including revision levels
❑ Details about recent configuration changes, if applicable
If you are unable to contact your network supplier, see the following
section on how to contact 3Com.
Support from 3Com
If you are unable to receive support from your network supplier, technical
support contracts are available from 3Com.
For direct access to customer service for Integrated Systems Division
products (formerly Chipcom) in:
❑ U.S.A. and Canada - call (800) 724-2447
❑ Asia Pacific - call (508) 787-5151
❑ Europe - Refer to table below
Country
Belgium
Denmark
Finland
France
Telephone Number
0800 71429
800 17309
Country
Netherlands
Norway
Spain
Telephone Number
06 0227788
800 11376
0800 113153
05 917959
900 983125
Sweden
U.K.
020 795482
Germany
Ireland
Italy
0130 821502
1 800 553117
1678 79489
0800 966197
800 876-3266
U.S.
Technical Support C - 3
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For access to customer service for all 3Com products, call (800) 876-3266.
You can also contact the Integrated Systems Division (ISD) on the Internet
by using the e-mail address techsupp@chipcom.com.
Returning Products for Repair
A product sent directly to 3Com for repair must first be assigned a Return
Materials Authorization (RMA) number. A product sent to 3Com without
an RMA number will be returned to the sender unopened, at the sender’s
expense.
To obtain an RMA number for Integrated Systems Division products
(formerly Chipcom), use the following numbers.
Country
Telephone Number
Fax Number
(508) 787-3400
No Fax
U.S. and Canada (800) 724-2447
Europe
(44) (1442) 275860
(508) 787-5296
Asia Pacific
(508) 787-3400
Accessing the 3Com MIB
The 3Com Management Information Base (MIB) for the Integrated Systems
Division describes commands that enable you to manage 3Com
SNMP-based products. The MIB is available over the Internet on an
anonymous FTP server. Updates to these MIBs are released as new 3Com
products are introduced.
To access Internet versions:
1. FTP to ftp.chipcom.com(151.104.9.65).
2. Enter the login name anonymous.
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3. Enter your full Internet e-mail address as the password
4. Change to the mib or schema directory using the cd /pub/mibsor
cd /pub/mibs/schemascommand.
5. To view the 3Com MIB, OID, or schema entries, enter the dir
command.
❑ To pause the display, press [CTRL-S].
❑ To continue the display, press [CTRL-Q].
6. Copy the MIB, OID, or schema files to your current directory using the
appropriate command (for example, get chipcom.mib).
7. To exit the FTP session, invoke the quitcommand.
3Com Technical Publications
If you have comments or questions on 3Com Integrated Systems Division
Technical Publications documents, please contact the Technical Publications
group by FAX (508) 229-1551.
Technical Support C - 5
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Index
Front Panel, 1-3
Numerics
3Com Bulletin Board Service (3ComBBS), C-3
H
Hot Swapping Modules, 1-11
A
Audience of Manual, xiii
I
Installation, 2-1
Introduction, 1-1
B
Back Panel, 1-3
Backup Power Supply
Installing, 2-14
bulletin board service, C-3
L
Load Sharing, 1-8
M
C
Maintenance, 3-1
Modules, 3-9
MIB, C-4
Cable Tray
Installing, 2-7
Rack Mounting, 2-8
Table Top Mount, 2-10
Cable Types, 1-1
Modules, installing, 2-19
Concentrator Features, 1-4
N
Network Protocols Supported, A-1
network supplier support, C-2
E
Environmental Conditions, 2-4
O
F
on-line technical services, C-1
Fan Unit
Removing, 2-14
Replacing, 3-7
Fault Tolerance, 1-8
FCC notice, ii
P
Passive Design, 1-12
Power Requirements, 2-5
Index 1
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Power Supply
Load Sharing, 1-8
Replacing, 3-2
Q
Quick Installation, 2-6
R
Rack Mounting, 2-11
Preparation, 2-5
Regulatory Compliance, A-2
returning products for repair, C-4
Rubber Feet, Installing, 2-13
S
Shipping Contents, 2-1
Slot Usage Chart, B-1
SNMP Commands, C-4
Specifications
Environmental, A-1
General, A-1
Mechanical, A-2
T
Table Top Installation, 2-13
Airflow, 2-6
Preparation, 2-6
technical support, C-1
TriChannel Architecture, 1-1, 1-6
V
VDE compliance, ii
Ventilation, 2-4
Verifying Operation, 2-20
Voltage Selection, 2-17
2 Index
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