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5124M-TPCL manual x ONline Ethernet 24-Port 10BASE-T Module Installation Guide
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Troubleshooting
Specs
Install
Port Module Configurations
Connecting Twisted Pair Cables
nonremotediagnostics
Unpacking Procedures
Setting Port Redundancy
Default
How to
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x ONline Ethernet
24-Port
10BASE-T
Module Installation Guide
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Contents
Document Number Printed February Model Number 5124M-TPCL 5124M-TP
ONline Ethernet 24-Port 10BASE-T Module Installation Guide
3Com Corporation 118 Turnpike Road Southborough, MA U.S.A 508 FAX 508
VDE Class B Compliance
Federal Communications Commission Notice
Canadian Emissions Requirements
EN55022/CISPR22 Compliance
Restricted Rights
Page
ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Contents
How to Use This Guide
Chapter 1 - Introduction
Chapter 3 - Installing and Operating the Module
vi ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Appendix B - Technical Support
Chapter 4 - Troubleshooting
Appendix A - Specifications
Index
viii ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Figures
ONline Ethernet 24-Port 10BASE-T Module Installation Guide
x ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Tables
ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Page
Audience
How to Use This Guide
ONline Ethernet 24-Port 10BASE-T Module Installation Guide
xiv ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Structure of This Guide
Convention
Document Conventions
ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Indicates
xvi ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Related Documents
Reference Documents
6-Slot ONline System Concentrator Installation and Operation
3Com Documents
ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Page
Ethernet 24-Port 10BASE-T Module Description
1 Introduction
Introduction 1
Module Features
1 - 2 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Bank Switching Capability
Model Number 5124M-TPCL Features
Introduction 1
1 - 4 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Model Number 5124M-TP Features
Theory of Operation
End Nodes
Figure 1-1. Typical 24-Port Module Configuration
Introduction 1
Concentrator
Page
Designing and Expanding the Network 2
2 Designing and Expanding the Network
2 - 2 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Rules for Configuring a Network
Understanding the General Rules
Definition
Table 2-1. Seven Basic Network Rules
Rule
Recommendations/Notes
2 - 4 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Table 2-1. Seven Basic Network Rules Continued
The fiber link distances
Designing and Expanding the Network 2
LAN Equivalence
2 - 6 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Table 2-2. LAN Product Equivalent Distances
Table 2-2. LAN Product Equivalent Distances Continued
Choosing a Network Backbone Cabling Structure
Designing and Expanding the Network 2
2 - 8 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Building a Network Star Configuration
Figure 2-1. Star-Wiring Configuration
Figure 2-2. Serial Configuration
Building a Network Serial Configuration
Designing and Expanding the Network 2
2 - 10 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
24-Port Module Configurations
Fiber Backbone, 10BASE-T To-The-Desk
Example Sample Configuration Distance Calculation
Designing and Expanding the Network 2
2 - 12 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
10BASE-T Backbone, 10BASE-T To-The-Desk
Figure 2-4. Unshielded Twisted Pair Network Using 24-Port Modules
Designing and Expanding the Network 2
Establishing Fault-Tolerant Configurations
Using Patch Panels
2 - 14 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Configuring Ports for Fault Tolerance
Setting Port Redundancy
Setting Backbone Redundancy
Designing and Expanding the Network 2
2 - 16 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Redundant Twisted Pair Backbone
Link failure Port partition
Designing and Expanding the Network 2
Page
3 Installing and Operating the Module
Installing and Operating the Module 3
3 - 2 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Precautionary Procedures
Quick Installation
Table 3-1. Procedures for Completing Installation
Installing and Operating the Module 3
Table 3-1. Procedures for Completing Installation
Establish connections from the 24-Port
Setting the DIP Switches
Unpacking Procedures
3 - 4 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
DIP Switch Overview
Installing and Operating the Module 3
3 - 6 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Figure 3-1. Model 5124M-TPCL and Model 5124M-TP DIP Switch Location
DIP Switch Description
Installing and Operating the Module 3
DIP Switch Setting
3 - 8 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Table 3-2. DIP Switch Settings
Default
DIP Switch
Table 3-3. Channel Network Select DIP Switch Settings
DIP Switch
Setting CONN
Installing the Module
3 - 10 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Figure 3-2. Installing a 24-Port Module Model Number 5124M-TPCL
Installing and Operating the Module 3
A 10BASE-T transceiver A patch panel A 10BASE-T adapter card
3 - 12 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
7. Attach the other ends of the cables to any of the following
Figure 3-3. 24-Port Module Cable Connection Model Number 5124M-TPCL
Installing the Cable Tie-Wrap Kit
Using 90 Cable Connectors
Installing and Operating the Module 3
Figure 3-4. Attaching the Tie-Wrap Bracket to the Module
3 - 14 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
3. Insert the tie-wrap through the opening on the tie-wrap bracket
Securing 90 Cables to the Module
Installing and Operating the Module 3
3 - 16 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Figure 3-6. Attaching Cables With 90 Connectors
Configuration in a Managed Environment
Installing and Operating the Module 3
3 - 18 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
If Management is Not Available
Enabling Port Redundancy
Before Configuring the Module
Enabling Ports
Installing and Operating the Module
Enabling Link Integrity
3 - 20 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Selecting a Network
SET MODULE slot CONNECTOR1NETWORK ethernet1
Enabling Remote Diagnostics Mode
Installing and Operating the Module 3
SET PORT slot.port MODE remotediagnostics
Setting the Autopartition Threshold Value
3 - 22 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Showing Module Configurations
Saving Module Configurations
Installing and Operating the Module
3 - 24 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Show Module
Show Port
Installing and Operating the Module 3
3 - 26 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Gathering Network Statistics
Installing and Operating the Module 3
Selecting the Per-Port Counters Connector
3 - 28 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Figure 3-7. 24-Port Module Faceplate and ONline System
Monitoring the Front Panel
Installing and Operating the Module 3
Concentrator Model Number 5124M-TPCL
3 - 30 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Figure 3-8 shows the location of the LEDs on Model Number 5124M-TP
LED Name
Installing and Operating the Module 3
Table 3-4. 24-Port Module LED Interpretations
Color
3 - 32 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Using the LED Check Button
Verifying LED and Network Assignments
Table 3-5. Network Check Codes
Network Configuration
Installing and Operating the Module 3
LED State
Page
4 Troubleshooting
Troubleshooting 4
Troubleshooting Using the Port Status LEDs
Troubleshooting Using the Port Status and Port Activity LEDs
4 - 2 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
LED State
Table 4-1. Troubleshooting Using the Port Status LEDs Continued
Troubleshooting 4
Indication
4 - 4 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Troubleshooting Using the Port Activity LEDs
Technical Assistance
This appendix contains the following sections General Specifications
A Specifications
Specifications A
Power Specifications Environmental Specifications
A - 2 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
General Specifications
Table A-1. 24-Port Module General Specifications
Table A-2. 24-Port Module Power Specifications
Power Specifications
Table A-1. 24-Port Module General Specifications Continued
Specifications A
Table A-3. 24-Port Module Fuse Specifications
Environmental Specifications
A - 4 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Table A-4. 24-Port Module Environmental Specifications
Table A-5. 24-Port Module Mechanical Specifications
Mechanical Specifications
Twisted Pair Cable and Connector Specifications
Specifications A
A - 6 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Twisted Pair Cable Specifications
Table A-6. IBM Twisted Pair Cable Specifications
RJ-45 Connector Pinouts
Twisted Pair Connector Specifications
Specifications A
A - 8 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
50-Pin Connector Pinouts
Figure A-1. 24-Port Module RJ-45 Connector Pinouts
Figure A-2. 50-Pin Male and Female Connectors
Specifications A
A - 10 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Table A-7. 50-Pin Cable Pinouts and Port Assignments
TX, +
Specifications A
Table A-7. 50-Pin Cable Pinouts and Port Assignments Continued
RX, +
Follow these steps to connect twisted pair cables
Connecting Twisted Pair Cables
A - 12 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
1. Connect cables at the active concentrator location
On-line Technical Support
B Technical Support
Technical Support B
Email Technical Support
B - 2 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Support from Your Network Supplier
World Wide Web Site
Support from 3Com
Technical Support B
B - 4 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Accessing the 3Com MIB
Returning Products for Repair
3Com Technical Publications
Technical Support B
Page
Numerics
Index
Index
Page
technical support, B-1 Troubleshooting
Power, A-3 Star Configuration Star Topology Status LEDs
Troubleshooting Using
Twisted Pair Cables Connecting, A-12
