Cabletron Systems TRRMIM-AT Installation guide

Brand: Cabletron Systems

Model: TRRMIM-AT

Type: Installation guide

This manual is also suitable for

TRRMIM-AT, TRRMIM-2AT, TRRMIM-4AT

TRRMIM-F2T & TRRMIM-F3T

ACTIVE TOKEN RING

REPEATER MODULES

INSTALLATION GUIDE

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

The Complete Networking Solution™

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 03867-0505

Printed in the United States of America

Order Number: 9030502-01 July 93

TRRMIM-AT

TRRMIM-2AT

TRRMIM-4AT

TRRMIM-F2T

TRRMIM-F3T

, and

MMAC

are trademarks of

Cabletron Systems, Inc.

LANVIEW

and

Remote LANVIEW

, are registered trademarks of

Cabletron Systems, Inc.

IBM

is a registered trademark of International Business Machines

Corporation.

NOTICE

FCC NOTICE

This device complies with Part 15 of the 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.

NOTE:

This equipment has been tested and found to comply with

the limits for a Class A digital device, pursuant to Part 15 of the FCC

rules. These limits are designed to provide reasonable protection

against harmful interference when the equipment is operated in a

commercial environment. This equipment uses, generates, and can

radiate radio frequency energy and if not installed in accordance

with the operator’s manual, may cause harmful interference to

radio communications. Operation of this equipment in a residential

area is likely to cause interference in which case the user will be

required to correct the interference at his own expense.

WARNING:

Changes or modifications made to this device which

are not expressly approved by the party responsible for compliance

could void the user’s authority to operate the equipment.

DOC NOTICE

This digital apparatus does not exceed the Class A limits for radio

noise emissions from digital apparatus set out in the Radio

Interference Regulations of the Canadian Department of

Communications.

Le présent appareil numérique n’émet pas de bruits

radioélectriques dépassant les limites applicables aux appareils

numériques de la class A prescrites dans le Règlement sur le

brouillage radioélectrique édicté par le ministère des

Communications du Canada.

CONTENTS

iii

CONTENTS

CHAPTER 1 INTRODUCTION

1.1 Using this Manual........................................................................ 1-1

1.2 The TRRMIM ................................................................................ 1-2

1.2.1 The TRRMIM -AT, TRRMIM-2AT and TRRMIM-4AT 1-3

1.2.2 The TRRMIM-F2T and TRRMIM-F3T ............................ 1-5

1.3 Ring-in Ring-out Connections.................................................... 1-6

1.4 Related Manuals........................................................................... 1-7

1.5 Recommended Reading .............................................................. 1-7

1.6 Getting Help ................................................................................. 1-8

CHAPTER 2 INSTALLATION REQUIREMENTS

SPECIFICATIONS

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

2.1.1 Cable Specifications........................................................... 2-1

2.1.2 Trunk Cable Lengths......................................................... 2-9

2.1.3 Cabling Recommendations ............................................ 2-10

2.1.4 Temperature ..................................................................... 2-12

2.2 Maximum Number of Stations................................................. 2-12

2.3 Operating Specifications ........................................................... 2-12

2.3.1 Ring Speed........................................................................ 2-12

2.3.2 Ring Sequence .................................................................. 2-13

2.3.3 LANVIEW LEDs.............................................................. 2-14

2.3.4 Connectors........................................................................ 2-17

2.3.5 General Specifications..................................................... 2-20

CHAPTER 3 INSTALLING THE REPEATER

3.1 Unpacking the Repeater.............................................................. 3-1

3.2 Setting the Default Ring Speed .................................................. 3-2

CONTENTS

3.3 Installing the Repeater into a MMAC........................................3-3

3.4 Attaching Trunk Cables to the Repeater...................................3-4

3.5 UTP AND STP LOBE CABLING................................................3-4

3.5.1 Attaching Stations to the TRRMIM-2AT ........................3-6

3.5.2 Attaching Stations to the TRRMIM-4AT ........................3-8

3.6 Fiber Optic Lode Cabling ............................................................3-9

3.7 Ring-in Ring-out Ports (TPIM) .................................................3-11

3.8 Finishing the Installation...........................................................3-13

CHAPTER 4 TESTING AND TROUBLESHOOTING

4.1 Installation Check-out..................................................................4-1

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

INTRODUCTION

Page 1-1

CHAPTER 1

INTRODUCTION

Welcome to the

TRRMIM-AT, TRRMIM-2AT, TRRMIM-4AT,

TRRMIM-F2T, & TRRMIM-F3T Active Token Ring Repeater

Modules Installation Guide

. This installation guide serves as a

reference for installing and troubleshooting the Cabletron Systems

token ring repeaters models: TRRMIM-AT, TRRMIM-2AT,

TRRMIM-4AT, TRRMIM-F2T, and TRRMIM-F3T.

The TRRMIMs are designed for installation into a Cabletron

Systems Multi Media Access Center (MMAC). The repeaters are

IEEE 802.5 compliant and can be installed to create an independent

token ring network or connected to other token ring devices and

expand existing networks.

NOTE:

The term

repeater

is used throughout this manual to describe

features and functions that are common to all repeater/MIMs. The terms

TRRMIM-AT, TRRMIM-2AT, TRRMIM-4AT, TRRMIM-F2T, and

TRRMIM-F3T are only used when it is necessary to describe features that

are unique to a specific device.

1.1 USING THIS MANUAL

Prior to installing and operating your repeater, read through this

manual completely to familiarize yourself with its contents and to

gain an understanding of the features of both repeaters. A general

working knowledge of Token Ring (IEEE 802.5) networks will be

helpful when installing the repeater.

Chapter 1,

Introduction

, describes the features and capabilities of

the TRRMIMs, lists related manuals, and recommended reading.

Chapter 2,

Installation Requirements/Specifications

, lists

specifications for the TRRMIMs and describes other network

requirements that must be met before you install your token ring

repeater.

INTRODUCTION

Page 1-2

Chapter 3,

Installing the Repeater

, gives instructions for installing

a token ring repeater into an MMAC, connecting stations, and

inserting the repeater into a token ring network.

Chapter 4,

Testing and Troubleshooting

, describes testing and

troubleshooting the installation of the TRRMIM and covers using

LANVIEW

, Cabletron Systems built-in visual diagnostic and

status monitoring system.

1.2 THE TRRMIM

The TRRMIM (see Figure 1-1) is a 802.5 compliant token ring

repeater, designed for installation into a Cabletron Systems Multi

Media Access Center (MMAC) that is equipped with a Flexible

Network Bus

™

(FNB). In addition to functioning as a repeater, the

module can serve multiple functions when installed in an MMAC.

Externally accessible Ring-In and Ring-Out ports, provided by the

plug-in Token Ring Port Interface Modules (TPIM), may use either

fiber optic, unshielded twisted pair (UTP), or shielded twisted pair

(STP) cabling. Ring connections are also made via the MMAC

Flexible Network Bus, allowing other MIMs to be a part of the ring.

Both the internal and external ring connections are active

connections and provide regeneration, reshaping and retiming of

both the main and backup signal paths.

Since the TPIM Ring-In and Ring-Out ports on the repeaters allow

connection of either fiber optic or STP cabling, they can be

configured to function as a copper to fiber optic

converter

The repeaters can be set to operate at ring speeds of either

4 Mbit/sec or 16 Mbit/sec. All equipment in a single ring network

must be set to the same ring speed. They cannot be mixed.

To connect two networks with different ring speeds, a bridging

device must be installed.

Repeaters installed in an MMAC (equipped with an FNB) and

MIMs operating with same MAC layer protocol (Token Ring/

INTRODUCTION

Page 1-3

802.5) and link speed (4 Mbit/s or 16 Mbit/s) can be linked, via the

FNB, into a single token ring network. Multiple MMACs can be

connected via the externally accessible Ring-In/Ring-Out ports of

the repeater.

Any SNMP manager can be used to control and monitor these

repeaters when a management module (TRMM, TRMMIM, or

TRBMIM) is installed in the MMAC. Management packages such as

Cabletron Systems Local Management, Remote LANVIEW/

Windows

, and SPECTRUM

may be used.

LANVIEW LEDs are visible at the front panel of the repeaters

showing the status of several operational functions of the repeaters.

LANVIEW is a useful tool for quickly diagnosing physical layer

problems.

1.2.1 The TRRMIM -AT, TRRMIM-2AT and TRRMIM-4AT

The TRRMIM-AT, TRRMIM-2AT, and TRRMIM-4AT have two

front panel TPIMs for Ring-in and Ring-out connections

(see Figure 1-1). A variety of media types are supported.

INTRODUCTION

Page 1-4

Figure 1-1 The TRRMIM-AT, -2AT, and -4AT

The TRRMIM-2AT provides twelve active unshielded RJ-45

connectors supporting unshielded twisted pair (UTP) station (lobe)

cabling. These ports support voice grade unshielded twisted pair

(UTP) and IBM Type 3 UTP cable.

ERR

16 MBMGMT

CRS16

PEN

AWEN

TRRMIM-AT

ERR

16 MBMGMT

RI RO

CRS16

PEN

AWEN

TRRMIM-2AT

LNK

PEN

ERR

16 MBMGMT

CRS16

PEN

AWEN

TRRMIM-4AT

LNK

PEN

INTRODUCTION

Page 1-5

The TRRMIM-4AT provides twelve active shielded RJ-45 TCU

ports supporting Shielded twisted pair (STP) cabling. These ports

support IBM Type 1, 2, 6 and 9 shielded twisted pair cable.

1.2.2 The TRRMIM-F2T and TRRMIM-F3T

The TRRMIM-F2T, and TRRMIM-F3T have two front panel TPIMs

for Ring-in and Ring-out connections (see Figure 1-2). A variety of

media types are supported.

Both repeaters provide six fiber optic ports for station (lobe)

cabling. The TRRMIM-F2T supports multimode fiber optic cable

and the TRRMIM-F3T support single mode cable for the lobe

connections.

INTRODUCTION

Page 1-6

Figure 1-2 The TRRMIM-F2T and TRRMIM-F3T

1.3 RING-IN RING-OUT CONNECTIONS

TPIMs are used for the Ring-in and Ring-out connections and

provide for many types of media. Table 1-1 lists the available

TPIMs.

ERR

16 MBMGMT

RI RO

CRS16

PEN

AWEN

TRRMIM-F2T

FLNK

INS

FLNK

INS

FLNK

INS

FLNK

INS

FLNK

INS

FLNK

INS

ERR

16 MBMGMT

CRS16

PEN

AWEN

TRRMIM-F3T

FLNK

INS

FLNK

INS

FLNK

INS

FLNK

INS

FLNK

INS

FLNK

INS

INTRODUCTION

Page 1-7

1.4 RELATED MANUALS

The manuals listed below should be used to supplement the

procedures and other technical data provided in this manual. The

procedures in them will be referenced, where appropriate, but will

not be repeated.

Cabletron Systems

Multi Media Access Center Overview and Set

Up Guide

Cabletron Systems

Token Ring Local Management for the

Cabletron Systems TRMM

1.5 RECOMMENDED READING

The following publications are recommended if more information

is required on implementing a Token Ring network.

Local Area Networks, Token Ring Access Method

, IEEE Standard

802.5

Commercial Building Wiring Standard

, EIA Standard Proposal

No. 1907-B

(if approved, to be published as

EIA/TIA-568

)

Table 1-1 Available TPIMs

TPIM Media Type Connector

TPIM-T1 Shielded Twisted Pair DB9

TPIM-T2 Unshielded Twisted Pair RJ-45

TPIM-T4 Shielded Twisted Pair RJ-45

TPIM-F2 Multi-mode Fiber Optic ST

TPIM-F3 Single mode Fiber Optic ST

INTRODUCTION

Page 1-8

LAN Troubleshooting Handbook

, Mark Miller (1989, M&T

Publishing, Inc.)

1.6 GETTING HELP

If you need additional support related to the Cabletron Systems

Token Ring products, or if you have any questions, comments or

suggestions related to this manual, please contact Cabletron

Systems Technical Support at:

Cabletron Systems, Inc.

P. O. Box 5005

Rochester, NH 03867-0505

Phone: (603) 332-9400

REQUIREMENTS/SPECIFICATIONS

Page 2-1

CHAPTER 2

INSTALLATION

REQUIREMENTS/SPECIFICATIONS

This chapter defines the requirements for other network elements

that will work with your token ring repeater and describes the

operational specifications for the TRRMIM-AT, TRRMIM-2AT

TRRMIM-4AT, TRRMIM-F2T, and TRRMIM-F3T. Before installing

your repeater, review the requirements and specifications that are

outlined in this chapter.

All conditions, guidelines, specifications, and requirements

included in this chapter must be satisfied to achieve optimum

performance from this equipment. Failure to follow these

guidelines may result in unsatisfactory network performance.

2.1 NETWORK REQUIREMENTS

Take care in planning and preparing the cabling and connections

for your network. The quality of the connections, the length of

cables and other conditions of the installation are critical factors in

determining the reliability of your network. The following are the

network requirements to operate this equipment.

2.1.1 Cable Specifications

Trunk Cabling

- The repeaters support UTP, STP, single-mode

fiber, or multi-mode fiber, depending upon the TPIM used.

Lobe Cabling

- The media used for lobe cabling depends on your

specific repeater:

• The TRRMIM-2AT supports voice grade UTP cable, as

described in EIA Standard Proposal No. 1907-B, and IBM Type

3 (and category 4 and 5) UTP cabling on its twelve trunk

coupling unit (TCU) ports.

REQUIREMENTS/SPECIFICATIONS

Page 2-2

• The TRRMIM-4AT supports IBM shielded twisted pair (STP)

cable Types 1, 2, 6, and 9 on its twelve trunk coupling unit

(TCU) ports.

• The TRRMIM-F2T supports multi-mode fiber optic cables using

ST connectors.

• The TRRMIM-F3T supports single-mode fiber optic cable using

ST style connectors.

STP CABLE TYPES

The TRRMIM-4AT, TPIM-T1 and TPIM-T4 support IBM Type 1, 2,

6, and 9 STP cabling as described in Table 2-1. STP cabling must

conform to the limits shown in Table 2-2.

REQUIREMENTS/SPECIFICATIONS

Page 2-3

Table 2-1 IBM Cable Types

Attenuation and Impedance

The maximum attenuation for specific STP cable types is shown in

Table 2-2. The attenuation values include the attenuation of the

cables, connectors, patch panels, and reflection losses due to

impedance mismatches in the segment.

Table 2-2 STP Cable Speciﬁcations

Frequency Impedance Attenuation

Types 1 & 2

4 Mhz

16 Mhz

150

Ω

15%

150

Ω

15%

<22 dB/km (6.7 dB/1000 ft.)

<45 dB/km (13.7 dB/1000 ft)

Type 6 & 9

4 Mhz

16 Mhz

150

Ω

15%

150

Ω

15%

<33 dB/km (10 dB/1000 ft.)

<66 dB/km (20 dB/1000 ft)

Type 1 Two shielded twisted pairs (STP) of 22 AWG solid wire for

data. Used for the longest cable runs within the walls of

buildings.

Type 2 Similar to Type 1 data cable, but having four additional

unshielded twisted pairs of 22 AWG solid wire. These are

carried outside of the shield casing and are typically used

for voice communication. Frequently used to wire cable

runs within the walls of buildings.

Type 6 Two STP of 26 AWG stranded wire for data. This type is

used in patch panels or to connect devices to/from wall

jacks. Attenuation for Type 6 cable is 3/2 x Type 1 cable

(66 m of Type 6 = 100 meters of Type 1).

Type 9 Similar to Type 1, but uses 26 AWG solid wire. Attenuation

for Type 9 cable is 3/2 x Type 1 cable (66 m of Type 9 =

100 meters of Type 1).

REQUIREMENTS/SPECIFICATIONS

Page 2-4

MAXIMUM CABLE LENGTH

Two cable lengths are defined for the repeaters,

Lobe Length

and

Trunk Length

Lobe Length

- The lobe length is the physical length of the cable

connecting a station to its TCU port at the repeater. Table 2-3 shows

the maximum lobe length, according to ring speed for each

repeater. The cable lengths listed in the table a total length of the

cable that is made up of a single cable type.

Trunk Length

- The maximum trunk cable length between

repeaters or between a repeater and another active device is equal

to the maximum drive distance (refer to Table 2-4). When the

neighboring token ring device is a passive device, the combined

length of the connecting trunk cable and twice the longest lobe

cable attached to the passive ring segment cannot exceed the

maximum drive distance.

Table 2-3 Maximum Lobe Length

Cable Type

Maximum Lobe Length

4 Mbit/s 16 Mbit/s

STP

IBM Types 1 & 2

IBM Type 6 & 9

(only for station to

wall jack and patch

panels)

300 meters 150 meters

(984 feet) (492 feet)

200 meters 100 meters

(656 feet) (328 feet)

REQUIREMENTS/SPECIFICATIONS

Page 2-5

UTP CABLE TYPES

The TRRMIM-2AT and the TPIM-T2 support D-inside wiring

(DIW) voice grade Unshielded Twisted Pair (UTP) cable as

described in

EIA SP-1907B

. Voice grade UTP cabling (e.g., IBM

Type 3 UTP) must conform to the limits shown in Table 2-3.

The increased popularity and cost advantages of UTP cable have

driven refinements to UTP cable design. As a result, better grades

of UTP cable, known as supergrade or level 4, are becoming

available that exhibit improved transmission characteristics. These

improved grades of UTP can often be used to permit operation at

16 Mbit/sec on longer lobe cables.

Attenuation and Impedance

The maximum attenuation for UTP cabling is shown in Table 2-5.

The values listed include the attenuation of the cables, connectors,

patch panels, and reflection losses due to impedance mismatches in

the segment.

Table 2-4 Maximum Drive Distance

Cable Type

Ring Speed

4 Mbit/s 16 Mbit/s

STP (Types 1 & 2)

STP (Types 6 & 9)

770 meters 346 meters

(2525 feet) (1138 feet)

513 meters 230 meters

(1683 feet) (755 feet)

REQUIREMENTS/SPECIFICATIONS

Page 2-6

NOTE:

IBM Type 3 - Consists of four Unshielded Twisted Pairs of 24

AWG solid wire for data or voice communication and is typically used to

wire cable runs within the walls of buildings.

In some installations, existing UTP building wiring can be used for

token ring cabling.

DO NOT

connect UTP cabling to any non-token

ring network conductors (telephone, etc.) or ground. If in doubt,

test wiring before using.

WARNING:

Telephone Battery and Ringing voltages, used in UTP

telephone circuits, could present a shock hazard and can damage token

ring equipment when connected to token ring cabling.

MAXIMUM CABLE LENGTH

Lobe Length

is the physical length of the cable connecting a station

to its TCU port at the repeater. Table 2-6 shows the maximum lobe

length, according to ring speed for each repeater. The cable lengths

listed in the table show a total length of the cable that is made up of

a single cable type.

Table 2-5 UTP Voice Grade (IBM Type 3) Speciﬁcations

Frequency Impedance Attenuation

1 Mhz 100

Ω

15% <26 dB/km (8 dB/1000 ft)

4 Mhz 100

Ω

±15% <56 dB/km (16 dB/1000 ft)

10 Mhz 100Ω ±15% <98 dB/km (30 dB/1000 ft)

16 Mhz 100Ω ±15% <131 dB/km (40 dB/1000 ft)

REQUIREMENTS/SPECIFICATIONS

Page 2-7

Table 2-6 Maximum Lobe Length

Type 3 Media Filter

When connecting token ring devices that are not equipped with a

Type 3 Media Filter to a UTP port, a Type 3 Media Filter, such as the

Cabletron Systems TRMF or TRMF-2, must be installed in line with

the lobe cable at the connection to token ring station.

Multi-Mode Fiber Optic Network Requirements

When connecting a Fiber Optic Link Segment to TRRMIM-F2T or a

TPIM-F2, the following network requirements must be met:

• Cable Type - The cable must be one of the following multi-

mode fiber optic media:

- 50/125 µm fiber optic cabling.

- 62.5/125 µm fiber optic cabling.

- 100/140 µm fiber optic cabling.

• Attenuation - The fiber optic cable must be tested with a fiber

optic attenuation test set that is adjusted for an 850 nm

wavelength. This test verifies that the signal loss in a cable is

within an acceptable level:

Cable Type

Maximum Lobe Length

4 Mbit/s 16 Mbit/s

UTP

Category 3

Category 4

Category 5

150 meters 85 meters

(492 feet) (279 feet)

200 meters 100 meters

(656 feet) (328 feet)

250 meters 120 meters

(820 feet) (394 feet)

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