Cabletron Systems TPMIM-22 Manuale utente

INC.

The Complete Networking Solution

10BASE-T TWISTED PAIR

MEDIA INTERFACE MODULE

(TPMIM-22/24/32/34)

INSTALLATION GUIDE

CABLETRON SYSTEMS, P.O. Box 5005, Rochester, NH 03867-5005

NOTICE

Cabletron Systems reserves the right to make changes in specifications and other

information contained in this document without prior notice. The reader should

in all cases consult Cabletron Systems to determine whether any such changes

have been made.

The hardware, firmware, or software described in this manual is subject to change

without notice.

IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY

INCIDENTAL, INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES

WHATSOEVER (INCLUDING BUT NOT LIMITED TO LOST PROFITS)

ARISING OUT OF OR RELATED TO THIS MANUAL OR THE

INFORMATION CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS

HAS BEEN ADVISED OF, KNOWN, OR SHOULD HAVE KNOWN, THE

POSSIBILITY OF SUCH DAMAGES.

Cabletron Systems, Inc.

P.O. Box 5005, Rochester, NH 03867-5005

Printed in the United States of America

Order number: 9030424 Apr. 91

LANVIEW is a registered trademark of Cabletron Systems, Inc.

SPECTRUM, Remote LANVIEW/Windows, TPMIM-22,

TPMIM-24, TPMIM-32, TPMIM-34, MMAC-8, MMAC-8FNB,

MMAC-5FNB, MMAC-3, MMAC-3FNB, PSM-R, MMAC-5PSM,

IRM-2, IRBM, TPT and LAN-MD are trademarks of

Cabletron Systems, Inc.

FCC NOTICE

This device complies with Part 15 of FCC rules. Operation is subject to the

following two conditions: (1) this device may not cause harmful interference,

and (2) this device must accept any interference received, including interference

that may cause undesired operation.

WARNING: This equipment uses and generates and can radiate radio frequency

energy and if not installed properly and used in accordance with the instruction

manual, may cause interference to radio communications. It has been tested and

found to comply with the limits for a Class A digital device pursuant to Subpart

J, of Part 15, of FCC Rules, which are designed to provide reasonable protection

against such interference in a commercial environment. Operation of this

equipment in a residential area is likely to cause interference in which case the

user at his own expense will be required to take whatever steps may be necessary

to correct the interference.

If this equipment does cause interference to radio or television, which can be

determined by turning the equipment off and on, the user is encouraged to try to

correct the interference by one or more of the following measures:

• Re-orient the receiving antenna.

• Relocate the MMAC with respect to the receiving antenna.

• Move the MMAC away from the receiver.

• Plug the MMAC into a a different outlet so that the MMAC and the receiver are on different branch

If necessary, the user should consult the dealer or an experienced radio/television

technician for additional suggestions. The user may find the following booklet

prepared by the Federal Communication Commission helpful:

“How to Identify and Resolve Radio TV Interference Problems”

This booklet is available from the U.S. Government Printing Office,

Washington D.C. 20402 - Stock No. 004-000-00345-4.

CONTENTS

iii

CONTENTS

CHAPTER PAGE

CHAPTER 1 - INTRODUCTION

1.1 Using This Manual .....................................................................1-1

1.2 Getting Help..............................................................................1-2

1.3 The 10BASE-T Twisted Pair Media Interface Modules........................1-3

1.3.1 The TPMIM-22/24..........................................................1-4

1.3.2 The TPMIM-32/34..........................................................1-4

1.4 Related Manuals .........................................................................1-4

CHAPTER 2 - NETWORK REQUIREMENTS/SPECIFICATIONS

2.1 Network Requirements.................................................................2-1

2.2 Operating Specifications...............................................................2-2

CHAPTER 3 - INSTALLATION

3.1 Unpacking the TPMIM................................................................3-1

3.2 Installing the TPMIM into the MMAC...........................................3-1

3.3 Connecting the TPMIM to the Network..........................................3-2

3.3.1 Attaching Twisted Pair Segments to the

TPMIM-22/24................................................................3-2

3.3.2 Attaching Twisted Pair Segments to the

TPMIM-32/34................................................................3-4

CHAPTER 4 - TESTING AND LANVIEW

4.1 Installation Checkout...................................................................4-1

4.2 Using LANVIEW .......................................................................4-2

INTRODUCTION

Page 1-1

CHAPTER 1

INTRODUCTION

Welcome to the Cabletron Systems

10BASE-T Twisted Pair Media Interface

Module (TPMIM™) Installation Guide

. We have designed this manual to

serve as a simple reference guide for the TPMIM. Before using the TPMIM, you

need to carefully read through this manual to gain a full understanding of the TP-

MIM and its capabilities.

Cabletron Systems offers four versions of the 10BASE-T Twisted Pair Media In-

terface Module (Fig. 1-1) for connecting 10BASE-T Twisted Pair Segments to a

Multi Media Access Center (MMAC™):

• TPMIM-22

with 12 RJ-45 ports.

• TPMIM-24

with 24 RJ-45 ports.

• TPMIM-32 with one 50 pin Champ connector.

• TPMIM-34 with two 50 pin Champ connectors.

1.1 USING THIS MANUAL

Chapter 1,

Introduction

, discusses the capabilities and special features of

Cabletron Systems' TPMIM. This chapter also includes a list of related manuals.

Chapter 2,

Installation Requirements/Specifications

contains a list of network

requirements that must be met before installing the TPMIM. The specifications

for the TPMIM are also included in this section.

Chapter3,

InstallingtheTPMIM

,containsinstructionsforinstallingtheTPMIM

into the MMAC, connecting twisted pair segments to the MIM, and connecting

10BASE-T Ethernet devices to the TPMIM.

INTRODUCTION

Page 1-2

Figure 1-1. 10BASE-T Twisted Pair Media Interface Modules



INTRODUCTION

Page 1-3

Chapter 4,

Testing and Troubleshooting

provides procedures for testing and

troubleshooting the installation of the TPMIM. Instructions for using LAN-

VIEW

, Cabletron Systems’ built-in visual diagnostic and status monitoring sys-

tem, are also included.

We assume that you have a general working knowledge of Ethernet or IEEE 802.3

type data communications networks and their physical layer components.

1.2 GETTING HELP

If you need additional support related to the Cabletron Systems TPMIM, or if you

have any questions, comments or suggestions related to this manual, feel free to

contact Cabletron Systems' Technical Support at:

Cabletron Systems

35 Industrial Way

P.O. Box 5005

Rochester, NH 03867-5005

Phone: (603) 332-9400

1.3 THE 10BASE-T TWISTED PAIR MEDIA INTERFACE MODULES

Cabletron Systems' 10BASE-T Twisted Pair Media Interface Modules provide 12

or 24 ports, utilizing either RJ-45 ports or 50-pin Champ connectors. When used

with the MMAC-8/FNB™, up to 168 10BASE-T twisted pair segments can be

connected.

Distance and Cable Type

The TPMIM supports 10BASE-T Twisted Pair Segments up to 125 meters in

length. These segments can be made from a wide variety of popular unshielded

twisted pair cabling with properties varying from 75-165 ohm impedance and 22-

26 AWG conductor size.

INTRODUCTION

Page 1-4

Polarity Detection and Correction

Each Port on the TPMIM incorporates a Polarity Detection and Correction fea-

ture. The Polarity Detection and Correction feature allows the TPMIM to pass

data regardless of the polarity of the twisted pair segments’ receive link. If polar-

ity is reversed, the LNK LED will flash to indicate this condition, once a good

packet passes through the port.

NOTE

: If this condition exists, the segment should be removed from the TPMIM

and the wiring corrected in the event that, in the future, the segment needs to be

attached to a device without the Polarity Correction and Detection feature.

Multi Media Access Centers

The Cabletron Systems’ 10BASE-T Twisted Pair Media Interface Modules are

designed to be installed into the Cabletron Systems MMAC. The modular design

of the MMAC allows the TPMIM to

co-exist with other Media Interface Modules (MIM™s) to provide a variety of dif-

ferent media connections on any one point. This means that the TPMIM can be

used by itself or in conjunction with any combination of other MIMs accommo-

dating Fiber Optic Cable, Thick or Thin Ethernet Coaxial Cabling, or AUI Ca-

bling.

Each packet entering the TPMIM is repeated by the MMAC’s repeater module.

These include the Cabletron Systems Intelligent Repeater Module (IRM-2™) and

Intelligent Repeater Bridging Module (IRBM™). Each packet that enters the re-

peater module is regenerated and retimed, which assures data integrity and maxi-

mum data path distance. In addition, the repeater feature ensures fault isolation,

since the repeater module will automatically segment problem ports from the net-

work. A segmented port will be automatically reconnected to the network once

the port has received a good packet.

INTRODUCTION

Page 1-5

The repeater module also allows you to access the network management capabil-

ities that enable you to control the TPMIM and its attached segments. For exam-

ple, information on the number of good packets and collisions that have passed

through the TPMIM and each port on the MIM can be gathered. A variety of net-

work management programs can be used to manage the TPMIM, including:

• Cabletron Systems SPECTRUM™.

• Cabletron Systems Remote LANVIEW/Windows™.

• Cabletron Systems Local Management.

• Third party SNMP compliant network management packages.

LANVIEW LEDs

TheTPMIM incorporates LANVIEW, CabletronSystems’built-indiagnostic and

status monitoring LED system. These LEDs, incorporated into all Cabletron Sys-

tems’ products, will assist you in rapidly diagnosing network problems as they

arise. Each port on the TPMIM has two LANVIEW LEDs: the Link OK (LNK)

LED and the Receive (RCV) LED. The Link OK LED will remain lit as long as

a link is maintained between the applicable port on the module and the 10BASE-

T device at the other end of the cable. If a link is not established, the LED will not

be lit. The Receive LED will be lit when activity is detected on the segment.

The TPMIM also has one Collision (CLN) LED, which indicates a collision on

any segment attached to one of the ports, and one Error (ERR) LED, which indi-

cates a potential temperature problem within the MMAC.

1.3.1The TPMIM-22/24

The TPMIM-22/24 design incorporates built-in RJ-45 ports, 12 on the TPMIM-

22 and 24 on the TPMIM-24. This design makes it easier to incorporate twisted

pair wiring schemes into your network. The TPMIM-22/24 allows you to directly

connect the segments to patch panels or other 10BASE-T Ethernet devices, elim-

inating the need for Punch-Down blocks or additional patch panels.

Each RJ-45 port on the TPMIM-22/24 is internally crossed over, eliminating the

need to cross over the twisted pair segment going from the port to the 10BASE-T

device at the other end of the segment.

INTRODUCTION

Page 1-6

1.3.2The TPMIM-32/34

The TPMIM-32/34 provides an alternative method for incorporating 10BASE-T

twisted pair segments into an existing twisted pair wiring scheme. The TPMIM-

32 has one 50 pin Champ connector that allows you to connect 12 segments to the

module. The

TPMIM-34 has two 50 pin Champ connector that allows you to connect 24 seg-

ments to the module. The 50 Pin Champ connector allows the MIM to tie directly

into Punch-Down blocks and patch panels. This connector complies with all

punch down and harmonica specifications.

1.4 RELATED MANUALS

The manuals listed below should be used to supplement the procedures and other

technicaldataprovided in this manual. Theprocedures inthemwillbe referenced,

where appropriate, but will not be repeated.

Cabletron Systems’

Multi-Media Access Center (MMAC-3/FNB MMAC-

5FNB and MMAC-8/FNB)

Overview and Set Up Guide.

Cabletron Systems

LAN-MD

User Manual

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