Cabletron Systems MicroMMAC-24E, MicroMMAC-34E, MicroMMAC-22E, MicroMMAC-32E, MicroMMAC-22ES Installation Manual

...

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MicroMMAC

10BASE-T INTELLIGENT STACKABLE HUB

INSTALLATION GUIDE

MicroMMAC-24E

CABLETRON MicroMMAC-24

RESET

DISPLAY

MicroMMAC-34E

CABLETRON MicroMMAC-34

RESET

DISPLAY

10BASE-T HUB

COM 1COM 2

10BASE-T HUB

COM 1COM 2

LANVIEW

RCV LNK

LANVIEW

RCV LNK

12 11 10

24 23 22

12 11 10

24 23 22

21 20 19

987

21 20 19

987

18 17 16

654

18 17 16

654

15 14 13

321

12X 11X 10X 9X 8X 7X 6X 5X 4X 3X 2X 1X

15 14 13

321

20X

22X23X24X

21X

19X

24X 13X

12X 1X

18X 17X 16 X

EPIM 2

15 X 14X 13X

EPIM 1

EPIM 2

EPIM 1

WITH

PWR CPU CLN

WITH

PWR CPU CLN

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.



Order Number: 9030908-02 April 1996

SPECTRUM, LANVIEW, MicroMMAC Manager, EPIM, EPIM-A, EPIM-F1, EPIM-F2, EPIM-F3, EPIM-T, EPIM-X, FOT-F, FOT-F3 HubSTACK, SEH, SEHI

All other product names mentioned in this manual may be trademarks or registered trademarks of their respective companies.

, and

TMS-3

, and

BRIM

are trademarks of Cabletron Systems, Inc.

are registered trademarks and

Element

MicroMMAC Installation Guide i

Printed on Recycled Paper

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:

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:

party responsible for compliance could void the user’s authority to operate the equipment.

This equipment has been tested and found to comply with the limits for a Class A digital

Changes or modifications made to this device which are not expressly approved by the

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.

VCCI NOTICE

This equipment is in the 1st Class Category (information equipment to be used in commercial and/or industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference by Information Technology Equipment (VCCI) aimed at preventing radio interference in commercial and/or industrial areas.

Consequently , when used in a residential area or in an adjacent area thereto, radio interference may be caused to radios and TV receivers, etc.

Read the instructions for correct handling.

ii MicroMMAC Installation Guide

Notice

CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT

IMPORTANT:

This document is an agreement between you, the end user, and Cabletron Systems, Inc. (“Cabletron”) that sets forth your rights and obligations with respect to the Cabletron software program (the “Program”) contained in this package. The Program may be contained in ﬁrmware, chips or other media. BY UTILIZING THE ENCLOSED PRODUCT, YOU ARE AGREEING TO BECOME BOUND BY THE TERMS OF THIS AGREEMENT, WHICH INCLUDES THE LICENSE AND THE LIMITATION OF WARRANTY AND DISCLAIMER OF LIABILITY. IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT, PROMPTLY RETURN THE UNUSED PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND.

Before utilizing this product, carefully read this License Agreement.

CABLETRON SOFTWARE PROGRAM LICENSE

1. LICENSE

package subject to the terms and conditions of this License Agreement. You may not copy, reproduce or transmit any part of the Program except as permitted by the

2. OTHER RESTRICTIONS. You may not reverse engineer, decompile, or disassemble the

Program.

3. APPLICABLE LA W. This License Agreement shall be interpreted and governed under the laws

and in the state and federal courts of New Hampshire. You accept the personal jurisdiction and venue of the New Hampshire courts.

. You have the right to use only the one (1) copy of the Program provided in this

EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY

1. EXCLUSION OF

writing, Cabletron makes no warranty, expressed or implied, concerning the Program (including its documentation and media).

CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE SUPPLIED TO YOU BY CABLETRON IN WRITING, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE PROGRAM, THE ACCOMPANYING WRITTEN MA TERIALS, AND ANY A CCOMPANYING HARDWARE.

2. NO LIABILITY FOR CONSEQUENTIAL DAMAGES. IN NO EVENT SHALL

CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS, PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR RELIANCE DAMAGES, OR OTHER LOSS) ARISING OUT OF THE USE OR INABILITY TO USE THIS CABLETRON PRODUCT, EVEN IF CABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR ON THE DURATION OR LIMITATION OF IMPLIED WARRANTIES, IN SOME INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU.

WARRANTY. Except as may be specifically provided by Cabletron in

MicroMMAC Installation Guide iii

Notice

UNITED STATES GOVERNMENT RESTRICTED RIGHTS

The enclosed product (a) was developed solely at private expense; (b) contains “restricted computer software” submitted with restricted rights in accordance with Section 52227-19 (a) through (d) of the Commercial Computer Software - Restricted Rights Clause and its successors, and (c) in all respects is proprietary data belonging to Cabletron and/or its suppliers.

For Department of Defense units, the product is licensed with “Restricted Rights” as deﬁned in the DoD Supplement to the Federal Acquisition Regulations, Section 52.227-7013 (c) (1) (ii) and its successors, and use, duplication, disclosure by the Government is subject to restrictions as set forth in subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at

252.227-7013. Cabletron Systems, Inc., 35 Industrial Way, Rochester, New Hampshire 03867-0505.

iv MicroMMAC Installation Guide

DECLARATION OF CONFORMITY

Notice

Application of Council Directive(s):

Manufacturer’s Name:

Manufacturer’ s Address:

European Representative Name:

European Representative Address:

Conformance to Directive(s)/Product Standards:

Equipment Type/Environment:

89/336/EEC 73/23/EEC

Cabletron Systems, Inc. 35 Industrial Way

PO Box 5005 Rochester, NH 03867

Mr. J. Solari Cabletron Systems Limited

Nexus House, Newbury Business Park London Road, Newbury Berkshire RG13 2PZ, England

EC Directive 89/336/EEC EC Directive 73/23/EEC EN 55022 EN 50082-1 EN 60950

Networking Equipment, for use in a Commercial or Light Environment.

Industrial

We the undersigned, hereby declare that the equipment packaged with this notice conforms to the above directives.

Manufacturer Legal Representative in Europe Mr. Richard Michaud Mr. J. Solari

___________________________________ ___________________________________

Full Name Full Name Manager of Engineering Services Managing Director - E.M.E.A.

___________________________________ ___________________________________

Title Title Rochester, NH, USA Newbury, Berkshire, England

___________________________________ ___________________________________

Location Location

MicroMMAC Installation Guide v

Contents

CHAPTER 1 INTRODUCTION

1.1 How to Use This Manual .............................................................1-1

1.2 Manual Organization ...................................................................1-1

1.3 Document Conventions...............................................................1-2

1.4 MicroMMAC Overview.................................................................1-3

1.5 MicroMMAC Features..................................................................1-4

1.6 Stackable Capabilities.................................................................1-6

1.7 Remote Network Management Capabilities................................1-7

1.8 Optional Features........................................................................1-8

1.9 Related Manuals..........................................................................1-9

1.10 Getting Help...............................................................................1-10

CHAPTER 2 CONTROLS AND INDICATORS

2.1 Identifying MicroMMAC Components..........................................2-1

2.2 Turning the MicroMMAC ON and OFF........................................2-2

2.3 Using the LCD and LCD DISPLAY Button ..................................2-2

2.3.1 Static System Messages ................................................2-3

2.3.2 Saved Alarm Messages..................................................2-4

2.3.3 Unsaved Initialization Messages ....................................2-5

2.3.4 Saved System Messages ...............................................2-6

2.4 Using the Reset Button................................................................2-7

2.5 Using the NVRAM Switch............................................................2-8

CHAPTER 3 INSTALLATION

3.1 Unpacking the MicroMMAC.........................................................3-1

3.2 Removing the Chassis Cover......................................................3-2

3.3 Setting the Mode Switches..........................................................3-4

3.4 Upgrading the FLASH SIMM.......................................................3-6

3.5 Adding/Replacing EPIMs.............................................................3-8

3.6 Adding/Replacing BRIMs.............................................................3-9

3.7 Testing the MicroMMAC..............................................................3-9

3.8 Installing the MicroMMAC..........................................................3-10

3.8.1 Shelf or Tabletop Installation ........................................3-11

3.8.2 Attaching the Strain-Relief Bracket...............................3-12

3.8.3 Rack Mounting the MicroMMAC...................................3-13

3.8.4 Stacking the MicroMMAC .............................................3-14

MicroMMAC Installation Guide vii

Contents

CHAPTER 4 CONNECTING TO THE NETWORK

4.1 Connecting the MicroMMAC to the Network................................4-1

4.1.1 Connecting a 10BASE-T Segment to the MicroMMAC-22E and MicroMMAC-24E4-2

4.1.2 Connecting a 10BASE-T Segment to the MicroMMAC-32E and MicroMMAC-34E4-3

4.1.3 Connecting a 10BASE-T Segment to an EPIM-T............4-5

4.1.4 Connecting a 10BASE-F Segment to an EPIM-F1..........4-6

4.1.5 Connecting a 10BASE-F Segment to an EPIM-F2 or EPIM-F34-8

4.1.6 Connecting a 10BASE2 Segment to an EPIM-C...........4-10

4.1.7 Connecting an AUI Segment to an EPIM-A ..................4-11

4.1.8 Connecting an AUI Segment to an EPIM-X ..................4-13

CHAPTER 5 TROUBLESHOOTING

5.1 Using LANVIEW...........................................................................5-1

5.2 Troubleshooting Checklist............................................................5-3

APPENDIX A MicroMMAC SPECIFICATIONS

A.1 Operating Specifications............................................................. A-1

A.2 Power Supply Requirements ...................................................... A-1

A.3 Environmental Requirements...................................................... A-2

A.4 Agency Approvals....................................................................... A-2

A.5 EMI Requirements ...................................................................... A-2

A.6 EMC Requirements..................................................................... A-2

A.7 Physical Specifications ............................................................... A-2

APPENDIX B EPIM SPECIFICATIONS

B.1 EPIM-T........................................................................................ B-1

B.2 EPIM-F1 and EPIM-F2................................................................ B-2

B.3 EPIM-F3...................................................................................... B-3

B.4 EPIM-C ....................................................................................... B-5

B.5 EPIM-A and EPIM-X ................................................................... B-6

viii MicroMMAC Installation Guide

Contents

APPENDIX C NETWORK PLANNING AND CONFIGURATION

C.1 Network Cable Requirements......................................................C-1

C.1.1 HubSTACK Interconnect Cable ......................................C-1

C.1.2 10BASE-T UTP and STP Cable......................................C-2

C.1.3 Multimode Fiber Optic Cable...........................................C-4

C.1.4 Single Mode Fiber Optic Cable .......................................C-5

C.1.5 10BASE2 Thin Coaxial Cable .........................................C-6

C.1.6 AUI Cable........................................................................C-7

C.2 Network Port Specifications.........................................................C-7

C.2.1 MicroMMAC-22E and MicroMMAC-24E

Network PortsC-8

C.2.2 MicroMMAC-32E and MicroMMAC-34E

Network PortsC-8

C.3 COM Port Specifications ...........................................................C-10

C.4 Transceiver Requirements ........................................................C-10

INDEX

MicroMMAC Installation Guide ix

CHAPTER 1

INTRODUCTION

Welcome to the Cabletron Systems

Intelligent Stackable Hub Installation Guide

MicroMMAC 10BASE-T

. This manual provides installation instructions and reference information for the MicroMMAC-22E, MicroMMAC-24E, MicroMMAC-32E, MicroMMAC-34E, MicroMMAC-22ES, MicroMMAC-24ES, MicroMMAC-32ES, and MicroMMAC-34ES.

Unless it is noted differently in this guide, the term MicroMMAC

NOTE

refers to the MicroMMAC-22E, MicroMMAC-24E, MicroMMAC-32E, MicroMMAC-34E, MicroMMAC-22ES, MicroMMAC-24ES, MicroMMAC-32ES, and MicroMMAC-34ES.

1.1 HOW TO USE THIS MANUAL

Read through this manual to gain an understanding of the features and capabilities of the MicroMMAC. A general knowledge of Ethernet and IEEE 802.3 type data communications networks and their physical layer components is helpful when installing the MicroMMAC.

1.2 MANUAL ORGANIZATION

This manual contains the following chapters and appendices: Chapter 1,

describes MicroMMAC features, and concludes with a list of related manuals.

Chapter 2, the MicroMMAC.

Chapter 3, stackable or standalone device.

Chapter 4, MicroMMAC to the network using the various media types.

MicroMMAC Installation Guide Page 1-1

Introduction

Controls and Indicators

Installation

, outlines the contents of this manual, brieﬂy

, shows the controls and indicators of

, describes how to install the MicroMMAC as a

Connecting to the Network

, explains how to connect the

Chapter 1:

Introduction

Chapter 5,

Troubleshooting

, describes how to use the LANVIEW LEDs

to troubleshoot network problems. Appendix A,

MicroMMAC Specifications

, provides the physical properties, environmental operating requirements, agency approvals, and power requirements.

Appendix B,

EPIM Specifications

, lists speciﬁcations for each of the

optional EPIMs available for the MicroMMAC. Appendix C,

Network Planning and Configuration

, provides network

cable requirements.

1.3 DOCUMENT CONVENTIONS

The following conventions are used throughout this document:

Note

symbol. Calls the reader’s attention to any item of

NOTE

information that may be of special importance.

TIP

CAUTION

Tip

symbol. Conveys helpful hints concerning procedures or

actions.

Caution

damage to the equipment.

Warning

equipment damage, personal injury or death.

symbol. Contains information essential to avoid

symbol. Warns against an action that could result in

Page 1-2 MicroMMAC Installation Guide

MicroMMAC Overview

1.4 MicroMMAC OVERVIEW

The MicroMMAC is an intelligent, repeating hub that provides complete SNMP management to as many as four Stackable Ethernet Hub (SEH) series non-intelligent hubs. The MicroMMAC has front panel ports for network connections and a rear panel HubSTACK Interconnect Bus port for stackable connections. In addition, the MicroMMAC has a rear panel port that supports one Cabletron Systems Bridge Router Interface Module (BRIM). BRIMs provide bridging/routing capability for Asynchronous Transfer Mode (ATM), Ethernet, Fiber Distributed Data Interface (FDDI), Token Ring, and Wide Area Network (WAN) connections.

The MicroMMAC provides front panel Ethernet connections using either RJ45 connectors or RJ21 connectors. In addition, the MicroMMAC provides two ports for Ethernet Port Interface Modules (EPIMs). EPIMs provide connectivity for unshielded twisted pair, shielded twisted pair, multimode ﬁber optic, single mode ﬁber optic, or thin coaxial cable.

The following list describes each conﬁguration of the MicroMMAC:

MicroMMAC-22E

•

provides 12 RJ45 network ports, one EPIM port,

and one BRIM port.

•

MicroMMAC-24E

provides 24 RJ45 network ports, two EPIM ports,

and one BRIM port.

•

MicroMMAC-32E

provides one RJ21 connector (providing 12

twisted pair segments), one EPIM port, and one BRIM port.

•

MicroMMAC-34E

provides two RJ21 connectors (providing 24

twisted pair segments), two EPIM ports, and one BRIM port.

•

MicroMMAC-22ES

one BRIM port, and Cabletron Systems LANVIEW

•

MicroMMAC-24ES

ports, one BRIM port, and Cabletron Systems LANVIEW

•

MicroMMAC-32ES

provides 12 RJ45 network ports, one EPIM port,

SECURE

provides 24 RJ45 network ports, two EPIM

SECURE

provides one RJ21 connector (providing 12 twisted pair segments), one EPIM port, one BRIM port, and Cabletron Systems LANVIEW

SECURE

•

MicroMMAC-34ES

twisted pair segments), two EPIM ports, one BRIM port, and Cabletron Systems LANVIEW

MicroMMAC Installation Guide Page 1-3

provides two RJ21 connectors (providing 24

SECURE

Chapter 1:

Introduction

1.5 MicroMMAC FEATURES

Repeater Functionality

The MicroMMAC fully conforms to the IEEE 802.3 Repeater, AUI, and 10BASE-T speciﬁcations, and provides the ﬂexibility to connect networks using IEEE 802.3, Ethernet Version 1 or Version 2 equipment. The MicroMMAC transmits retimed data packets, regenerates the preamble, extends fragments, and arbitrates collisions.

The MicroMMAC automatically partitions problem segments, and reconnects repaired segments to the network. This feature minimizes the impact on network operation resulting from a problem on one segment by isolating the problem segment. Only devices on the problem segment are affected. When the problem is solved, the MicroMMAC automatically reconnects the isolated segment to the network.

Polarity Detection and Correction

Each twisted pair port on the MicroMMAC incorporates a Polarity Detection and Correction feature. This feature allows the MicroMMA C to pass data regardless of the polarity of the twisted pair segment’s receive link. Cabletron Systems does not recommend operating in this condition. If you discover this condition, remove the segment from the network and wire it correctly. This reduces the potential for problems in the future if equipment changes are made.

Local Management

Local Management allows you to manage the MicroMMAC and all its attached segments. It also provides full packet and error statistics for the entire stack, individual device, or individual port. You access Local Management by attaching a DEC VT320 terminal or a PC using VT320 emulation software to the MicroMMA C’s RJ45 COM 2 port. Refer to the

MicroMMAC Local Management User’s Guide

for instructions on how to

use Local Management.

LANVIEW LED

Cabletron Systems LANVIEW status monitoring and diagnostics system is a troubleshooting tool that helps diagnose power failures, collisions, cable faults, and link problems. LANVIEW LEDs are conveniently located on the MicroMMAC front panel.

Page 1-4 MicroMMAC Installation Guide

MicroMMAC Features

LCD

The MicroMMAC is equipped with an LCD that provides information about the MicroMMAC such as po wer up diagnostics, ﬁrmware re visions, MAC and IP addresses, and error alerts.

Reset Button

The Reset button lets you re-boot and initialize the processor.

Intelligence

The MicroMMAC is equipped with an advanced Intel i960 microprocessor to provide a scalable RISC-based architecture.

Management Information Base (MIB) Support

The MicroMMAC provides IETF MIB support which includes the following:

• Remote Monitoring MIB (RMON)

• Bridge MIB

• MIBII

Serial Connections

The MicroMMAC provides two RJ45 ports (COM 1 and COM 2) for serial connections. The COM ports allow access to Local Management by locally connecting a DEC VT220 or VT320 terminal, or a PC using VT emulation software. The COM ports also provide a connection for an Uninterruptible Power Supply (UPS).

DLM

Cabletron Systems Distributed LAN Monitor (DLM) is a software option for the MicroMMAC. DLM pro vides a method to locally poll and monitor any Simple Network Management Protocol (SNMP) or Internet Protocol (IP) device using a remote management application.

MicroMMAC Installation Guide Page 1-5

Chapter 1:

FLASH EEPROMs

Introduction

The MicroMMAC uses FLASH Electrically Erasable Programmable Read Only Memory (EEPROM) which allows you to download new and updated ﬁrmware using SPECTRUM Element Manager for Windows or any device using BOOTP or tftp protocols.

The MicroMMAC supports the following download applications:

Standard Download

•

- the MicroMMAC automatically becomes

disabled while the new ﬁrmware image loads directly into Local

not

Dynamic Random Access Memory (LDRAM). You can

perform a

Standard Download through a BRIM interface.

•

Runtime Download - the MicroMMAC continues to operate without interruption while you download the ne w ﬁrmware image directly into FLASH memory. The original ﬁrmware image in LDRAM continues to run until the MicroMMAC is reset. You can perform a Runtime Download through any network port, including the BRIM.

1.6 STACKABLE CAPABILITIES

The MicroMMAC can be stacked together with Cabletron Systems SEH series of non-intelligent hubs. You can stack as many as four non-intelligent hubs with one MicroMMAC. The MicroMMAC provides complete management for the stack, including full packet and error statistics for the entire stack, individual de vice, or individual port. Y ou can also add or remove hubs from the stack without having to power down.

Stackable conﬁgurations let you maintain only one IEEE repeater hop while providing up to 130 Ethernet ports. The rear panel HubSTACK Interconnect Bus Out port of the MicroMMAC lets you daisy chain hubs together using the HubSTACK Interconnect cable. Figure 1-1 shows a typical stackable conﬁguration.

Page 1-6 MicroMMAC Installation Guide

Remote Network Management Capabilities

REAR VIEW MicroMMAC MANAGING 4 SEH NON-INTELLIGENT HUBS

HubSTACK SEH-24

10BASE-T

OUT

10BASE-T

OUT

10BASE-T

OUT

10BASE-T

OUT

MicroMMAC-34E

HUB

WITH

SEH INTERCONNECT

HUB

WITH

SEH INTERCONNECT

HUB

WITH

SEH INTERCONNECT

HUB

WITH

LANVIEW®

SEH INTERCONNECT

10BASE-T

LINE: 100-125V - 4.0A 200-250V - 2.0A

50/60Hz

LANVIEW®

HUB

WITH

LANVIEW®

SEH INTERCONNECT

OUT

090802

Figure 1-1 Typical Stackable Conﬁguration

1.7 REMOTE NETWORK MANAGEMENT CAPABILITIES

You can manage the MicroMMAC remotely by any SNMP network management system. Cabletron Systems offers the following remote management packages:

• Cabletron Systems SPECTRUM

• Cabletron Systems SPECTRUM Element Manager for Windows

• Cabletron Systems Remote SPECTRUM Portable Management Applications

MicroMMAC Installation Guide Page 1-7

Chapter 1: Introduction

1.8 OPTIONAL FEATURES

The following features are not included with the MicroMMA C, but can be purchased separately from Cabletron Systems.

Bridging/Routing Capabilities

Bridge Router Interface Modules (BRIMs) provide the MicroMMAC with bridging/routing capability. Cabletron Systems offers BRIMs that support the following technologies:

• Asynchronous Transfer Mode (ATM)

• Ethernet

• Fast Ethernet

• Fiber Distributed Data Interface (FDDI)

• Token Ring

• Wide Area Network (WAN)

Refer to the release notes included with the MicroMMAC for a

NOTE

Ethernet Port Interface Modules (EPIMs)

list of available BRIMs.

EPIMs provide the MicroMMAC with Ethernet connectivity to a variety of media. Cabletron Systems offers the EPIMs shown in Table 1-1.

Page 1-8 MicroMMAC Installation Guide

Related Manuals

Table 1-1 EPIMs

EPIM Media T ype Connectors

EPIM-A AUI DB15 (Female) EPIM-C 10BASE2 Thin Coaxial BNC EPIM-F1 Multimode Fiber SMA EPIM-F2 Multimode Fiber ST EPIM-F3 Single Mode Fiber ST EPIM-T 10BASE-T Unshielded Twisted Pair RJ45 EPIM-X Standard Transceiver DB15 (Male)

HubSTACK Interconnect Cables

HubSTACK Interconnect cables link the MicroMMAC to SEH hubs in the stack. Table 1-2 lists the part number and application for each cable.

Table 1-2 HubSTACK Interconnect Cables

Part Number Description Application

9380110 12” HubSTACK Interconnect

Cable

9380111 18” HubSTACK Interconnect

Cable

SEH to SEH connections

MicroMMAC to SEH connections

1.9 RELATED MANUALS

Use the following manuals to supplement the procedures and other technical data provided in this manual. The procedures contained in the following manuals are referenced where appropriate, but not repeated in this manual.

• Cabletron Systems SEH Series User’s Guides

• Cabletron Systems BRIM User's Guides

MicroMMAC Installation Guide Page 1-9

Chapter 1: Introduction

1.10 GETTING HELP

If you need additional support related to the MicroMMAC, or if you ha ve any questions, comments, or suggestions concerning this manual, contact Cabletron Systems Technical Support:

By phone (603) 332-9400

Monday – Friday; 8 By CompuServe GO CTRON from any ! prompt By Internet mail support@ctron.com By FTP ctron.com (134.141.197.25)

Before calling Cabletron Systems Technical Support, have the following information ready:

• A description of the failure

A.M. – 8 P.M. Eastern T ime

• A description of any action(s) already taken to resolve the problem

(e.g., changing mode switches, rebooting the unit, etc.)

• A description of your network environment (layout, cable type, etc.)

• Network load and frame size at the time of trouble (if known)

• The serial and revision numbers of all Cabletron Systems products in

the network

• The device history (i.e., have you returned the device before, is this a

recurring problem, etc.)

• Any previous Return Material Authorization (RMA) numbers

Page 1-10 MicroMMAC Installation Guide

CHAPTER 2

CONTROLS AND INDICATORS

This chapter describes how to identify and use the controls and indicators of the MicroMMAC.

2.1 IDENTIFYING MicroMMAC COMPONENTS

Figure 2-1 shows each of the MicroMMAC’s operational components.

FRONT VIEW

10BASE-T HUB

MicroMMAC-24E

CABLETRON MicroMMAC-24

RESET

DISPLAY

COM 1COM 2

WITH

PWR CPU CLN

COM PORTS

RESET BUTTON

LCD DISPLAY BUTTON

MicroMMAC-24E 10BASE-T HUB WITH LANVIEW®

LINE: 100-125V - 4.0A 200-250V - 2.0A

50/60Hz

POWER CORD CONNECTOR

LANVIEW

RCV LNK

24 23 22

RCV LNK

12 11 10

SYSTEM LEDS

LCD

18 17 16

654

15 14 13

321

21 20 19

987

PORT STATUS LEDS

E 2

E 1

12X 11X 10X 9X 8X 7X 6X 5X 4X 3X 2X 1X

20X

22X23X24X

21X

19X

18X 17X 16 X

NETWORK PORTS

BRIM PORT

HubSTACK INTERCONNECT PORT

15 X 14 X 13 X

EPIM PORTS

REAR VIEW

SEH INTERCONNECT

OUT

EPIM 2

EPIM 1

MicroMMAC Installation Guide Page 2-1

SIDE VIEW

NVRAM SWITCH ACCESS

090829

Figure 2-1 MicroMMAC Components

Chapter 2: Controls and Indicators

2.2 TURNING THE MicroMMAC ON AND OFF

The MicroMMAC is NOT equipped with a Power ON/OFF

NOTE

To power-on the MicroMMAC, perform the following steps:

1. Plug the power cord into the power cord connector on the back panel of the MicroMMAC.

2. Plug the other end of the power cord into a grounded wall outlet.

3. Verify that the PWR LED is on, indicating that the MicroMMAC is receiving power. After the MicroMMAC runs a self test, the CPU LED blinks green indicating normal operation. If the LED remains red, the processor is faulty; contact Cabletron Systems Technical Support.

switch.

To power-off the MicroMMAC, disconnect the power cord from the power outlet.

2.3 USING THE LCD AND LCD DISPLAY BUTTON

The LCD provides information about the operation of the MicroMMAC and network activity. Four types of messages appear on the LCD:

• Static System Messages

• Saved Alarm Messages

• Unsaved Initialization Messages

• Saved System Messages

The following sections describe each type of LCD message and provide instructions for displaying them.

Page 2-2 MicroMMAC Installation Guide

Using the LCD and LCD DISPLAY Button

2.3.1 Static System Messages

Static System messages provide MicroMMA C conﬁguration information. Table 2-1 lists each message. To view Static System messages, perform the following steps:

1. Press and immediately release the Display button to view the first

Static System Message in the queue.

2. Press and release the Display button to display each subsequent

message. If the Display button is not pressed again for ten seconds, the LCD

defaults to the product name.

Table 2-1 Static System Messages

Displayed Messages Comments

IP Address xxx.xxx.xxx.xxx

MAC Address 00001dxxxxxx

RAM Image Rev. xx.xx.xx

Boot PROM Rev. xx.xx.xx

Flash Programmed xx Times

COM 1 Port Baud Rate xxxxx

COM 1 Port Function xxxxx

COM 2 Port Baud Rate xxxxx

Displays the MicroMMAC’s IP address. The IP address can be changed through Local Management.

Displays the MicroMMAC’s MAC address (this address is also called the physical address).

Displays the revision number of the image currently executing in FLASH.

Displays the revision number of the internal Boot PROM.

Displays the number of times FLASH has been programmed.

Displays the Baud Rate f or the COM 1 port. The default setting is AUTO because the MicroMMAC uses Auto-Baud detection.

Displays the current function of the COM 1 Port (N/A, UPS, LM).

Displays the baud rate for the COM 2 port. The default setting is AUTO because the MicroMMAC uses Auto-Baud detection.

COM 2 Port Function xxxxxx

MicroMMAC Installation Guide Page 2-3

Displays the current function of the COM 2 Port (N/A, UPS, LM).

Chapter 2: Controls and Indicators

2.3.2 Saved Alarm Messages

Saved Alarm messages describe events that occur within the MicroMMAC or on the network. Table 2-2 shows each Saved Alarm message. To view Saved Alarm messages, perform the following steps:

1. Press the Display button for five seconds and then release to view the first Saved Alarm message in the message queue.

2. Press and immediately release the Display button to scroll through each subsequent message.

If the Display button is not pressed again for 10 seconds, the LCD defaults to the product name.

Table 2-2 Saved Alarm Messages

Displayed Messages Comments

No Messages in Queue No Alarm messages in queue. This is the

default setting.

Port xxxxxx Segmented

Port xxxxxx UnSegmented

Port xxxxxx Link Established

Port xxxxxx Not Linked

EPIM-x Inserted

EPIM-x Removed

EPIM-x Security Violation

Displays segmentation status of network ports 1–24, EPIM-1 or EPIM-2.

Displays segmentation status of network ports 1–24, EPIM-1, or EPIM-2.

Displays link status of network ports 1–24, EPIM-1, EPIM-2, or BRIM-1.

Displays installation status of EPIM-1 or EPIM-2.

Indicates unauthorized access attempt at EPIM-1 or EPIM-2.

CableRedun Fail Port EPIM-x

CableRedun Enable Indicates redundant link enabled. Port EPIM-x EPIM-1 or EPIM-2. Port xxxxxx

Disabled

Page 2-4 MicroMMAC Installation Guide

Indicates failure of redundant link at EPIM-1 or EPIM-2.

Indicates network ports 1–24, EPIM-1, or EPIM-2 disabled.

Using the LCD and LCD DISPLAY Button

Table 2-2 Saved Alarm Messages (Continued)

Displayed Messages Comments

Port xxxxxx Enabled

Port xx Security Violation

Cable Redundancy Port xxxxxx Failure

Cable Redundancy Enable Port xxxxxx

Indicates network ports 1–24, EPIM-1, or EPIM-2 enabled.

Indicates unauthorized access attempt at ports 1–24.

Indicates failure of redundant link at ports 1–24, EPIM-1, or EPIM-2.

Indicates redundant link enabled at ports 1–24, EPIM-1, or EPIM-2.

2.3.3 Unsaved Initialization Messages

Unsaved Initialization messages are po wer-up messages that appear as the event occurs, but are not saved in a buffer for future recall. Table 2-3 lists Unsaved Failure or Error messages and Table 2-4 lists normal Unsaved Initialization messages.

If Failure or Error Messages appear, call Cabletron Systems

CAUTION

Technical Support.

Table 2-3 Unsaved Failure or Error Messages

Cabletron Ctrl. Reg. Err.

Cabletron SDRAM Failure

Cabletron SONIC Failure

Cabletron Console SCC Error

Cabletron 82C54 Failure

Cabletron BBRAM Failure

Cabletron Modem SCC Error

Cabletron Bit Swap Failure

Cabletron LDRAM Failure

MicroMMAC Installation Guide Page 2-5

Chapter 2: Controls and Indicators

Table 2-4 Normal Unsaved Initialization Messages

Cabletron Hardware Init

Cabletron BOOTP Discovery

Cabletron TFTP Req. State

Cabletron TFTP Complete

Cabletron Programming Flash

Cabletron Boot Complete

Cabletron Boot From Flash

Cabletron RARP Req. State

Cabletron TFTP in Progress

Cabletron Erasing Flash

Cabletron Flash Programmed

Cabletron Test in Progress

2.3.4 Saved System Messages

Saved System messages are de vice related startup or boot strap messages, BOOTP/tftp host, or startup error messages. To access the Saved System messages queue, perform the following steps:

1. Enter the Saved Alarm messages queue as described in Section 2.3.2.

2. Press the Display button for two seconds and then release to display the first Saved System message.

3. Press and immediately release the Display button to display each subsequent message.

If the Display button is not pressed again for ten seconds, the LCD defaults to the product name.

Page 2-6 MicroMMAC Installation Guide

Table 2-5 Saved System Messages

Displayed Messages Comments

Using the Reset Button

BootP Host xxx.xxx.xxx.xxx

TFTP Host xxx.xxx.xxx.xxx

Last TFTP Host xxx.xxx.xxx.xxx

TFTP File xxxxxxxxxxxxxxxx

Last TFTP File xxx.xxx.xxx.xxx

The IP address of the server from which a BootP image was downloaded to the MicroMMAC.

The IP address of the server from which the most recent BootP image was downloaded to the MicroMMAC.

The ﬁlename of an image downloaded to the MicroMMAC.

The ﬁlename of the most recently downloaded image to the MicroMMAC.

2.4 USING THE RESET BUTTON

Use the Reset button to initialize (reboot) the MicroMMAC processor. Pressing the Reset button causes the hub to clear all counters, run self-test diagnostics, and reload the ﬁrmware image into Local Dynamic Random Access Memory (LDRAM).

The Reset button does not clear Non-Volatile Random Access

NOTE

Memory (NVRAM).

Use a pen or pencil to press the Reset button. The MicroMMAC re-boots and initializes the processor.

MicroMMAC Installation Guide Page 2-7

Chapter 2: Controls and Indicators

2.5 USING THE NVRAM SWITCH

It is not necessary to remove the chassis cover from the

NOTE

NVRAM (Non-Volatile Random Access Memory) stores user-entered parameters such as community names, port conﬁguration settings, and the IP address. The NVRAM switch is accessible through the last lower circulation vent on the right side panel (see Figure 2-2). To clear NVRAM, perform the following steps:

MicroMMAC to gain access to the NVRAM switch.

To prevent the possibility of electrical shock, use only a non-metallic tool when operating the NVRAM switch.

Do not clear NVRAM unless you intend to reset the

CAUTION

MicroMMAC user parameters to the factory default settings.

1. Ensure that the MicroMMAC is powered-on.

2. Use a non-metallic tool to change the state of the NVRAM switch. For example: Move the switch from one position to another.

3. Press the Reset button. The MicroMMAC reboots and returns all user-entered parameters to the factory default settings.

Page 2-8 MicroMMAC Installation Guide

NVRAM SWITCH LOCATED BEHIND CIRCULATION VENT

Using the NVRAM Switch

REAR OF CHASSIS

Figure 2-2 NVRAM Switch Location

149005

MicroMMAC Installation Guide Page 2-9

CHAPTER 3

INSTALLATION

This chapter provides instructions for the following:

• Unpacking the MicroMMAC

• Removing the MicroMMAC chassis cover

• Setting the mode switches

• Adding/Replacing EPIMs

• Testing the MicroMMAC

Only qualiﬁed personnel should perform installation procedures.

3.1 UNPACKING THE MicroMMAC

Unpack the MicroMMAC as follows:

1. Remove the shipping material covering the MicroMMAC.

2. Carefully remove the MicroMMAC from the shipping box and set it

aside to prevent damage.

3. Visually inspect the MicroMMAC. If there are any signs of damage,

contact Cabletron Systems Technical Support immediately.

4. Read the MicroMMAC Release Notes included in the shipping box.

Cabletron Systems includes 3-1/2" disks with the MicroMMAC

NOTE

that contain a backup copy of the MicroMMAC FLASH Firmware Image File. Download the ﬁle to the MicroMMAC if the existing image becomes corrupted.

MicroMMAC Installation Guide Page 3-1

Chapter 3: Installation

3.2 REMOVING THE CHASSIS COVER

This section describes how to remove the chassis cover of the MicroMMAC . The chassis cover must be removed to install BRIMs or SIMMs, and to set the mode switch bank. Refer to the applicable BRIM User’s Guide for installation instructions.

Figure 3-1 shows how to remove the chassis cover and the location of the BRIM slot. You need a Phillips-head screwdriver to remove the chassis cover.

Do not remove the chassis cover from the MicroMMAC while power is applied to the unit.

Do not power up the MicroMMA C f or an y reason until the co v er and screws are in place. Hazardous voltages are present that could damage the unit or cause personal injury.

The components and boards associated with the MicroMMAC

CAUTION

are sensitive to static discharges. Be sure to use an antistatic wrist strap and observe all static precautions during this procedure. Failure to do so could result in damage to the MicroMMAC.

To remove the chassis cover, perform the following steps:

1. Disconnect the MicroMMAC from the network as follows: a. Disconnect the power cord from the rear of the MicroMMAC. b. Disconnect all network cables attached to the MicroMMAC. Note

the ports to which these cables attach.

c. If the MicroMMAC is rack mounted, remove it from the rack.

Page 3-2 MicroMMAC Installation Guide

Removing the Chassis Cover

2. Use a Phillips-head screwdriver to remove the seven screws that attach

the chassis cover to the MicroMMAC. Place the screws aside. See Figure 3-1.

3. Remove the chassis cover from the MicroMMAC. See Figure 3-1.

MicroMMAC-24E

10BASE-T HUB

WITH

LANVIEW®

LINE:

SN 100-125V - 4.0A 200-250V - 2.0A

50/60Hz

SEH-INTERCONNECT OUT

MicroMMAC-24E

10BASE-T HUB

WITH

LANVIEW®

LINE:

SN 100-125V - 4.0A 200-250V - 2.0A

50/60Hz

SEH-INTERCONNECT OUT

090830

Figure 3-1 Removing the Chassis Cover Screws

MicroMMAC Installation Guide Page 3-3

Chapter 3: Installation

3.3 SETTING THE MODE SWITCHES

Figure 3-2 shows the location and factory default settings of the mode switches. Check these switches to ensure that they are in the correct position for normal MicroMMAC operation.

MicroMMAC TOP VIEW

OFF

1 2 3 4 5 6 7 8

FRONT PANEL

Figure 3-2 The MicroMMAC Mode Switches and FLASH SIMM Location

FLASH MEMORY SIMM

090816

Switch deﬁnitions are as follows:

• Switch 1 - Cabletron Systems use only.

• Switch 2 - Cabletron Systems use only.

• Switch 3 - Cabletron Systems use only.

• Switch 4 - Cabletron Systems use only.

• Switch 5 - Cabletron Systems use only.

Page 3-4 MicroMMAC Installation Guide

Setting the Mode Switches

• Switch 6 - Forced Download. Changing the state of this switch (i.e., moving the switch from one position to another) clears download information from NVRAM and forces the MicroMMAC to do wnload an image ﬁle from the station acting as the BOOTP/TFTP serv er of the MicroMMAC.

–

CAUTION

DO NOT change the state of Switch 6 unless –you have a station acting as a BOOTP server, and a tftp

server that contains the MicroMMAC image ﬁle. The BOOTP server and the tftp server could be different servers.

–you intend to set up a station to act as a BOO TP server for the MicroMMAC .

After changing the state of this switch, and repowering the device, the MicroMMAC requests a new image until it either receives a new image, or you reset the MicroMMAC again by using the Reset button on the front panel.

Reset the MicroMMAC a second time. The device attempts to locate a BOOTP server again. However, the BOOTP request times out after about one minute, and the MicroMMAC boots from FLASH memory.

• Switch 7 - Cabletron Systems use only.

• Switch 8 - Password Defaults. Changing the state of this switch clears user-entered passwords stored in NVRAM, and restores default passwords. Once you reset the MicroMMA C, you can use the defaults or re-enter your passwords.

Do not change the state of Switch 8 unless you want to reset

CAUTION

MicroMMAC Installation Guide Page 3-5

the MicroMMAC user-conﬁgured passwords to their factory default settings.

Chapter 3: Installation

3.4 UPGRADING THE FLASH SIMM

The MicroMMAC allows memory upgrades for the FLASH EEPROM. Figure 3-2 shows the location of the FLASH SIMM Slot.

Before you can install the new FLASH SIMM, you need to remove the existing FLASH SIMM.

The internal components and boards associated with the

CAUTION

To remove the FLASH SIMM, refer to Figure 3-3 and perform the following steps:

MicroMMAC are static sensitive devices. Use the antistatic wrist band and observe standard antistatic safety procedures when the cover is removed. Failure to do so could cause damage or severely limit the life expectancy of the MicroMMAC.

1. Push the two connector clips away from the FLASH SIMM to release it.

2. Tilt the FLASH SIMM upward.

3. Pull the FLASH SIMM out of the socket.

SIMM

CONNECTOR CLIP

Figure 3-3 Removing a FLASH SIMM

Page 3-6 MicroMMAC Installation Guide

1742-32

Upgrading the FLASH SIMM

T o install the replacement FLASH SIMM, refer to Figure 3-4 and perform the following steps:

1. With the SIMM notch positioned as shown in Figure 3-4, gently insert

the FLASH SIMM into the SIMM connector.

2. Carefully rock the FLASH SIMM back towards the connector clips

until the clips snap into place and secure the FLASH SIMM.

SIMM

NOTCH

CONNECTOR CLIP

CONNECTOR

Figure 3-4 Installing a FLASH SIMM

CONNECTOR CLIP

1742-33

MicroMMAC Installation Guide Page 3-7

Chapter 3: Installation

3.5 ADDING/REPLACING EPIMS

This section explains how to add/replace an Ethernet Port Interface Module (EPIM) to upgrade or change the capabilities of the MicroMMAC.

EPIMs are sensitive to static discharge. Be sure to use an

CAUTION

To install an EPIM, perform the following steps:

CAUTION

antistatic wrist strap and observe all static precautions during this procedure. Failure to do so could result in damage to the EPIM.

When removing an EPIM, make sure to pull the module straight out. Failure to do so could result in damage to the connector.

1. Remove the coverplate or the EPIM (whichever applies).

2. Slide the EPIM into place, making sure the connector on the EPIM attaches to the connector inside the MicroMMAC. See Figure 3-5.

3. Install the mounting screw.

EPIM-2

13X

14X

15X

16X

17X

18X

EPIM-1

Page 3-8 MicroMMAC Installation Guide

LNK

EPIM-T

090828

Figure 3-5 Installing an EPIM

Adding/Replacing BRIMs

3.6 ADDING/REPLACING BRIMS

To add or replace a Bridge/Router Interface Module (BRIM) in the MicroMMAC, refer to the applicable BRIM user’s guide.

3.7 TESTING THE MicroMMAC

Before installing the MicroMMAC in a live network, test the hub in a controlled situation to ensure that it is bridging packets. Perform this test with two workstations as shown in Figure 3-6.

To test the MicroMMAC, perform the following steps:

1. Connect the first workstation to a MicroMMAC network port, EPIM,

or BRIM.

2. Connect the second workstation to a MicroMMAC network port,

EPIM, or BRIM.

3. Designate the first workstation as a file server and the second

workstation as the client.

To conﬁgure a workstation as a ﬁle server or client, refer to the

NOTE

documentation included with the workstation.

4. Send packets between the two workstations to verify the proper

operation of the MicroMMAC.

A “ping” test of each workstation veriﬁes that the MicroMMAC

NOTE

is operating properly.

MicroMMAC Installation Guide Page 3-9

Chapter 3: Installation

MicroMMAC-24E

CLIENT WORKSTATION

Figure 3-6 Installation Check-Out

CABLETRON MicroMMAC-24

RESET

DISPLAY

10BASE-T HUB

COM 1COM 2

WITH

LANVIEW

RCV LNK

21 20 19

24 23 22

PWR

RCV

CPU CLN

LNK

12 11 10

987

15 14 13

18 17 16

22X23X24X

21X

321

654

12X 11X 10X 9X 8X 7X 6X 5X 4X 3X 2X 1X

20X

19X

18X 17X 16 X

15X 14 X 13X

EPIM 2

EPIM 1

FILE SERVER WORKSTATION

090831

3.8 INSTALLING THE MicroMMAC

The MicroMMAC may be installed on a tabletop, shelf, or in a 19-inch rack and may be conﬁgured as a standalone or stacked hub. Cabletron Systems provides an accessory kit with the MicroMMAC that includes rackmount brackets, mounting screws, and a strain-relief bracket.

The following sections provide instructions for stacking the MicroMMA C or installing it as a standalone device. Follow the instructions that are applicable to your installation needs.

Page 3-10 MicroMMAC Installation Guide

Installing the MicroMMAC

3.8.1 Shelf or Tabletop Installation

Before installation, ensure that you locate the MicroMMAC within reach of the network cabling and follow the requirements listed below:

• A single phase grounded power receptacle that meets the po wer supply

requirements listed in Appendix A, Section A.2, Power Supply Requirements, must be located within seven feet of the MicroMMAC.

• In a shelf installation, the shelf must be able to support 30 pounds of

static weight for each device in the stack.

• The temperature for the selected location must maintain a temperature

between 5˚C and 40˚C (41˚F and 104˚F), and ﬂuctuate less than 10˚C (18˚F) per hour.

• There must be sufﬁcient clearance around the unit for proper

ventilation.

For a shelf or tabletop installation, locate the MicroMMAC within 7 feet of its power source and with an unrestricted free surface area 21 inches wide, 18 inches deep and 6 inches high, as shown in Figure 3-7.

21 INCHES

18 INCHES

6 INCHES

MicroMMAC-24E

10BASE-T HUB

WITH

LANVIEW

7-FOOT POWER CORD

EPIM 2

EPIM 1

Figure 3-7 Shelf or Tabletop Installation

MicroMMAC Installation Guide Page 3-11

090811

Chapter 3: Installation

3.8.2 Attaching the Strain-Relief Bracket

To attach the strain-relief bracket to the bottom of the MicroMMAC, perform the following steps:

1. Locate the strain-relief bracket and four 8-32 x 3/8-inch screws from the MicroMMAC-ACCY-KIT package.

Do NOT attempt to attach the strain-relief bracket with screws other than the 8-32 x 3/8-inch screws included with the MicroMMAC accessory kit. Use of longer screws may damage the unit or cause electrical shock.

2. Attach the strain-relief bracket to the bottom of the MicroMMAC as shown in Figure 3-8.

EPIM 1

EPIM 2

SCREWS (4)

STRAIN-RELIEF BRACKET

10BASE-T HUB

WITH

LANVIEW

090807

Figure 3-8 Attaching the Strain-Relief Bracket

MicroMMAC-24E

Page 3-12 MicroMMAC Installation Guide

Installing the MicroMMAC

3.8.3 Rack Mounting the MicroMMAC

Refer to Figure 3-9 and perform the following steps to install the MicroMMAC in a 19-inch rack.

1. Remove four cover screws (two from each side) located along the

front edges of each side of the MicroMMAC.

Do not remove the cover from the MicroMMAC. Do not remove any other screws from the unit.

2. Using the four cover screws removed in step 1, attach the rack

mounting brackets to each end of the MicroMMAC.

WALL/RACK MOUNTING

BRACKETS (2)

MicroMMAC-24E

10BASE-T HUB

WITH

LANVIEW

EPIM 2

EPIM 1

SCREWS (4)

090808

Figure 3-9 Installing the Rackmount Brackets

3. Ensure that the rack used to install the unit will support the unit and

that the rack will remain stable with the unit installed in it. Support the MicroMMAC securely from underneath and align the brackets of the MicroMMAC chassis with the screw holes in the equipment rack as shown in Figure 3-10. Fasten the MicroMMAC to the 19-inch rack securely.

The cooling fans at the rear panel of the MicroMMAC must

CAUTION

have adequate clearance (two inches on either side and in the rear) for unrestricted air flow.

MicroMMAC Installation Guide Page 3-13

Chapter 3: Installation

19-INCH RACK

MicroMMAC-24E

10BASE-T HUB

WITH

LANVIEW

EPIM 2

EPIM 1

Figure 3-10 Installing the MicroMMAC in the Rack

3.8.4 Stacking the MicroMMAC

The rear panel of the MicroMMAC has an Interconnect Bus Out Port (male connector) for stackable connections. To attach non-intelligent hubs to the MicroMMAC, use Cabletron Systems HubSTACK Interconnect cables. Table 3-1 describes each cable.

Table 3-1 HubSTACK Interconnect Cables

Part Number Description Application

9380110 12” HubSTACK Interconnect

Cable

9380111 18” HubSTACK Interconnect

Cable

SEH to SEH connections

MicroMMAC to SEH connections

To stack the MicroMMAC together with an SEH non-intelligent hub, perform the following steps:

1. Attach the MicroMMAC HubSTACK Interconnect cable to the OUT port on the rear panel of the MicroMMAC as shown in Figure 3-11.

2. Attach the other end of the MicroMMAC HubSTACK Interconnect cable to the IN port on the rear panel of the SEH.

Page 3-14 MicroMMAC Installation Guide

Installing the MicroMMAC

To stack SEH non-intelligent hubs together, perform the following steps:

1. Attach the SEH HubSTACK Interconnect cable to the OUT port on

the rear panel of the SEH as shown in Figure 3-11.

2. Attach the other end of the SEH HubSTACK Interconnect cable to the

IN port on the rear panel of the SEH next in the stack.

SEH HubSTACK INTERCONNECT CABLES (PN 9380110)

HubSTACK 10BASE-T HUB WITH LANVIEW® SEH-24

OUT

SEH INTERCONNECT

HubSTACK 10BASE-T HUB WITH LANVIEW® SEH-24

OUT

SEH INTERCONNECT

HubSTACK 10BASE-T HUB WITH LANVIEW® SEH-24

OUT

SEH INTERCONNECT

HubSTACK 10BASE-T HUB WITH LANVIEW® SEH-24

OUT

SEH INTERCONNECT

MicroMMAC-34E 10BASE-T HUB WITH LANVIEW®

LINE: 100-125V - 4.0A 200-250V - 2.0A

50/60Hz

Figure 3-11 Stacking the MicroMMAC

SEH INTERCONNECT

OUT

090805

MicroMMAC HubSTACK INTERCONNECT CABLE (PN 9380111)

MicroMMAC Installation Guide Page 3-15

Chapter 3: Installation

If you temporarily disconnect one end of a HubSTACK Interconnect cable and leave the other end attached to the hub, ensure that you disconnect the cable from the OUT port as shown in Figure 3-12. This ensures proper termination of the HubSTACK cable.

DISCONNECT MicroMMAC AND SEH INTERCONNECT CABLES AT THE "OUT" PORT.

HubSTACK

10BASE-T

HUB

WITH

SEH-24

HubSTACK SEH-24

OUT

10BASE-T

OUT

LANVIEW®

SEH INTERCONNECT

HUB

WITH

LANVIEW®

SEH INTERCONNECT

MicroMMAC-34E

10BASE-T

LINE: 100-125V - 4.0A 200-250V - 2.0A

50/60Hz

HUB

WITH

LANVIEW®

SEH INTERCONNECT

OUT

Figure 3-12 Disconnecting the HubSTACK Interconnect Cable

090806

Page 3-16 MicroMMAC Installation Guide

CHAPTER 4

CONNECTING TO THE NETWORK

This chapter explains how to connect the MicroMMAC to a network using the network ports and EPIMs.

4.1 CONNECTING THE MicroMMAC TO THE NETWORK

The procedure for connecting network segments to the MicroMMAC varies depending on the media and ports being connected. Refer to the following list and perform the procedure described in the subsections that apply to your MicroMMAC:

Connecting a 10BASE-T Segment to the MicroMMAC-22E and MicroMMAC-24E

Connecting a 10BASE-T Segment to the MicroMMAC-32E and MicroMMAC-34E

Connecting a 10BASE-T Segment to an EPIM-T Section 4.1.3 Connecting a 10BASE-F Segment to an EPIM-F1 Section 4.1.4 Connecting a 10BASE-F Segment to an EPIM-F2

or EPIM-F3 Connecting a 10BASE2 Segment to an EPIM-C Section 4.1.6 Connecting an AUI Segment to an EPIM-A Section 4.1.7 Connecting an AUI Segment to an EPIM-X Section 4.1.8

Section 4.1.1

Section 4.1.2

Section 4.1.5

MicroMMAC Installation Guide Page 4-1

Chapter 4: Connecting to the Network

4.1.1 Connecting a 10BASE-T Segment to the MicroMMAC-22E and MicroMMAC-24E

The MicroMMAC-22E and MicroMMAC-24E have RJ45 network ports that support unshielded twisted pair segments. Each RJ45 port on the MicroMMAC incorporates a Polarity Detection and Correction feature. The Polarity Detection and Correction feature allows the MicroMMA C to pass data regardless of the polarity of the twisted pair segment’s receive link. Cabletron Systems does not recommend operating in this condition and if this condition is discovered, the segment should be removed from the network and wired correctly by a technician.

To attach twisted pair segments to the RJ45 network ports of the MicroMMAC, perform the following steps:

1. Insert the RJ45 connector from each twisted pair segment into the

desired network port on the MicroMMAC. See Figure 4-1.

EPIM-2

LNK

EPIM-T

13X

14X

15X

18X

17X

16X

LNK

EPIM-T

EPIM-1

090812

Figure 4-1 MicroMMAC-22E/24E Network Ports

2. Check that the associated LNK LED for the port is on. If the LED is

not on, perform each of the following steps until it is: a. Check that the 10BASE-T device at the other end of the twisted

pair segment is powered up.

b. Verify that the RJ45 connector on the twisted pair segment has the

proper pinouts. Refer to Figure 4-4.

Page 4-2 MicroMMAC Installation Guide

Connecting the MicroMMAC to the Network

c. Check that the twisted pair connection meets dB loss and cable

specifications outlined in Appendix C, Network Planning and Configuration.

If a link still has not been established, contact Cabletron Systems Technical Support.

4.1.2 Connecting a 10BASE-T Segment to the MicroMMAC-32E and MicroMMAC-34E

The MicroMMAC-32E has one RJ71 connector and the MicroMMAC-34E has two RJ71 connectors. Each RJ71 connector supports twelve 10BASE-T segments.

Refer to Appendix C, Network Planning and Configuration,

NOTE

for RJ71 pinouts.

To connect the MicroMMAC in an existing twisted pair wiring system, perform the following steps:

1. Connect an RJ71 connector to an RJ71 port on the MicroMMAC as

shown in Figure 4-2.

EPIM-2

LNK

EPIM-T

13X

24X

12X

LNK

EPIM-T

EPIM-1

090813

Figure 4-2 MicroMMAC-32E/34E Network Ports

MicroMMAC Installation Guide Page 4-3

Chapter 4: Connecting to the Network

2. Attach wires of the 25-pair cable to a punch down block, or patch panel.

3. At the device end of a segment, attach the segment to a 10BASE-T compliant Ethernet device.

4. Check that the link LED on the 10BASE-T Ethernet device and the applicable LNK LEDs on the MicroMMAC are on. If the LEDs are not on, perform each of the following steps until the LEDs are on:

a. Check that the 10BASE-T device and the MicroMMAC have

power.

b. Verify the cabling between the MicroMMAC and the 10BASE-T

device.

c. Check the cable for continuity.

If a link has not been established, contact Cabletron Systems Technical Support.

Page 4-4 MicroMMAC Installation Guide

Connecting the MicroMMAC to the Network

4.1.3 Connecting a 10BASE-T Segment to an EPIM-T

Before connecting a segment to the EPIM-T, check each end of the segment to determine the proper crossover. If the wires do not cross over, use the switch on the EPIM-T to internally cross over the RJ45 port. Refer to Figure 4-3 to properly set the EPIM-T crossover switch.

POSITION X (CROSSED OVER)

1. RX+

2. RX-

3. TX+

4. NC

5. NC

6. TX-

7. NC

8. NC

POSITION = (NOT CROSSED OVER)

1. TX+

2. TX-

3. RX+

4. NC

5. NC

6. RX-

7. NC

8. NC

149014

Figure 4-3 EPIM-T Crossover Switch

To connect an EPIM-T to a twisted pair segment, perform the following steps:

1. Connect the twisted pair segment to the module by inserting the RJ45

connector on the twisted pair segment into the RJ45 port on the module. See Figure 4-3.

2. Check that the EPIM’s LNK LED is on. If the LED is not on, perform

each of the following steps until it is: a. Check that the 10BASE-T device at the other end of the twisted

pair segment is powered up.

MicroMMAC Installation Guide Page 4-5

Chapter 4: Connecting to the Network

b. Verify that the RJ45 connector on the twisted pair segment has the

proper pinouts. Refer to Figure 4-4.

MicroMMAC RJ45 PORT

PIN 1 Tx+ PIN 2 TxPIN 3 Rx-

PIN 4 Rx+

RX+/RX- AND TX+/TX- MUST SHARE A COMMON PAIR.

Figure 4-4 Cable Pinouts RJ45 Port

10BASE-T DEVICE PORT

Tx+ PIN 1 Tx- PIN 2

Rx- PIN 3 Rx+ PIN 6

c. Check the cable for continuity. d. Check that the twisted pair connection meets dB loss and cable

specifications outlined in Appendix C.

090833

e. Check that the crossover switch is in the correct position.

If a link still has not been established, contact Cabletron Systems Technical Support.

4.1.4 Connecting a 10BASE-F Segment to an EPIM-F1

When connecting a ﬁber optic link segment with SMA 906

CAUTION

Each ﬁber optic link consists of two strands of ﬁber optic cabling: the transmit (TX) and the receive (RX). The transmit strand from a module port connects to the receive port of a ﬁber optic Ethernet device at the other end of the segment. The receive strand of the applicable port on the module connects to the transmit port of the ﬁber optic Ethernet device.

connectors to an EPIM-F1 with SMA ports, make sure each connector uses half alignment, NOT full alignment, sleeves. A full alignment sleeve damages the receive port. SMA 905 connectors do not need alignment sleeves.

Page 4-6 MicroMMAC Installation Guide

Connecting the MicroMMAC to the Network

Cabletron Systems recommends labeling ﬁber optic cables to indicate receive and transmit ends. Many cables are prelabeled, providing matching labels or tapes at both ends of each strand of cable.

1. Remove the protective plastic covers from the fiber optic ports on the

applicable port on the module, and from the ends of the connectors on each fiber strand.

Do not touch the ends of the ﬁber optic strands, and do not let

CAUTION

the ends come in contact with dust, dirt, or other contaminants. Contamination of cable ends causes problems in data transmissions. If necessary, clean contaminated cable ends using alcohol and a soft, clean, lint-free cloth.

2. Attach one fiber to the receive port (RX) on the EPIM-F1. Insert the

SMA connector into the port. Turn the connector clockwise until the connector will no longer turn easily. Do not overtighten the connector.

3. Attach the other fiber of the pair to the applicable transmit port on the

module. Use the same procedure for insertion of the ST connector.

MicroMMAC Installation Guide Page 4-7

109814

Figure 4-5 SMA Connector Insertion

Chapter 4: Connecting to the Network

4. At the other end of the fiber optic cable, attach the fiber pair to the transmit and receive ports of the device.

If link indicators are present for the ﬁber optic connection, check that they are ON. If an indicator is present but not ON, that port does not have a valid link. Perform each of the follo wing steps until you reach a resolution of the problem and achieve a link.

• Check that the device at the other end of the link is ON.

• V erify proper cross-o ver of the ﬁber strands. Try sw apping the transmit and receive connections at only one end of the link.

• Verify that the ﬁber connection meets the dB loss speciﬁcations outlined in Appendix C, Network Planning and Configuration.

If you are still unable to establish a link, attempt to make the connection between the devices with another ﬁber optic cable. If this is unsuccessful, contact Cabletron Systems Technical Support.

4.1.5 Connecting a 10BASE-F Segment to an EPIM-F2 or

EPIM-F3

Cabletron Systems recommends labeling ﬁber optic cables to indicate receive and transmit ends. Many cables are prelabeled, providing matching labels or tapes at both ends of each strand of cable.

1. Remove the protective plastic covers from the fiber optic ports on the applicable port on the module, and from the ends of the connectors on each fiber strand.

Page 4-8 MicroMMAC Installation Guide

Connecting the MicroMMAC to the Network

Do not touch the ends of the ﬁber optic strands, and do not let

CAUTION

2. Attach one fiber to the applicable receive port on the module. Insert

the ST connector into the port with the alignment slot on the connector inserted over the locking key on the port. Turn the connector clockwise to lock it down.

090834

Figure 4-6 ST Connector Insertion

3. Attach the other fiber of the pair to the applicable transmit port on the

module. Use the same procedure for insertion of the ST connector.

4. At the other end of the fiber optic cable, attach the fiber pair to the

transmit and receive ports of the device.

• Check that the device at the other end of the link is ON.

• V erify proper cross-o ver of the ﬁber strands. Try sw apping the transmit

and receive connections at only one end of the link.

MicroMMAC Installation Guide Page 4-9

Chapter 4: Connecting to the Network

• Verify that the ﬁber connection meets the dB loss speciﬁcations outlined in Appendix C, Network Planning and Configuration.

If you are still unable to establish a link, attempt to make the connection between the devices with another ﬁber optic cable. If this is unsuccessful, contact Cabletron Systems Technical Support.

4.1.6 Connecting a 10BASE2 Segment to an EPIM-C

To connect a 10BASE2 thin coaxial segment to an EPIM-C, perform the following steps:

Before attaching a male BNC connector to a f emale BNC barrel

NOTE

connector or terminator, look into the end of the connector to verify that the gold contact pin is present and centered. Any bent or broken pins may not connect properly and should be replaced.

1. Set the Internal Termination (TERM) Switch, located to the right of the port and labeled TERM to one of the following settings:

a. ON position ( ) to internally terminate the thin coaxial cable

segment at the port. Thin coaxial cable segments may be directly connected to the port.

b. OFF position ( ) to not internally terminate the thin coaxial cable

segment at the port. Segments may only be connected through T-connectors which are connected to properly terminated segments on both ends.

Failure to terminate each T-connector segment may result in

NOTE

improper segment operation. Place a terminator on any open female connection on the T-connector.

c. Attach another thin coaxial cable segment or a terminator to the

other female connector on the T-connector.

Page 4-10 MicroMMAC Installation Guide

Connecting the MicroMMAC to the Network

2. Align the guide channels of the BNC (male) metal housing with the

locking keys of the BNC barrel (female) connector on the EPIM. Slide the metal housing of the male connector straight over the metal housing of the female connector.

3. Once the housing stops moving in, turn the metal housing clockwise

while continuing to apply light forward pressure.

149016

Figure 4-7 BNC Connector Insertion

4. The locking keys of the female connector will pull the connector in

until they reach the circular locking holes at the end of the guide channels. The keys will click the connector into place and hold it there.

To remove the BNC connector, perform the steps above in reverse order, turning the metal housing counter-clockwise and pulling the connector straight off of the female BNC connector.

4.1.7 Connecting an AUI Segment to an EPIM-A

Ensure that the external transceiver to which the EPIM-A

CAUTION

connects does not have the Signal Quality Error (SQE or “heartbeat”) test function enabled. The EPIM does not operate if the transceiver has the SQE test function enabled. Refer to the applicable transceiver manual for additional information.

MicroMMAC Installation Guide Page 4-11

Chapter 4: Connecting to the Network

To connect an EPIM-A to an external network segment, perform the following steps:

1. Attach an AUI cable, no longer than 50 meters in length, to the external transceiver.

2. Align the DB15 connector of the AUI cable with the AUI port of the EPIM as shown in Figure 4-8. The port will only connect if it is properly aligned.

3. Firmly press the AUI connector over the AUI port. If there is a slide latch present for the AUI connector, slide it over the locking posts on the DB15 port.

If the transceiver PWR LED is OFF with the AUI cable connected:

a. Check the AUI connections for proper pinouts. b. Check the cable for continuity. c. Reconnect the AUI cable to the MicroMMAC and the device.

If the transceiver PWR LED remains OFF, contact Cabletron Systems Technical Support.

Page 4-12 MicroMMAC Installation Guide

090814

Figure 4-8 The EPIM-A

Connecting the MicroMMAC to the Network

4.1.8 Connecting an AUI Segment to an EPIM-X

The Signal Quality Error (SQE) switch remains in the OFF

CAUTION

To connect an EPIM-X to a device not requiring SQE perform the following steps:

1. Align the DB15 connector of the AUI cable with the AUI port of the

EPIM as shown in Figure 4-9. The port will only connect if it is properly aligned.

position for most network connections. However, some Data Terminal Equipment (DTE) requires SQE. Refer to your DTE manual for SQE requirements.

ON POSITION (TOWARD BACK OF EPIM)

OFF POSITION (TOWARD FRONT OF EPIM)

OFF

149018

Figure 4-9 The EPIM-X

2. Firmly press the AUI connector over the AUI port. If there is a slide

latch present for the AUI connector, slide it over the locking posts on the DB15 port.

3. Check that the SQE LED on the EPIM-X is off. If the SQE LED is on,

check the position of the SQE switch.

MicroMMAC Installation Guide Page 4-13

Chapter 4: Connecting to the Network

If the SQE LED remains on, even though the SQE switch is in

NOTE

the OFF position, contact Cabletron Systems Technical Support.

Page 4-14 MicroMMAC Installation Guide

CHAPTER 5

TROUBLESHOOTING

This chapter describes how to use the front panel LANVIEW LEDs to troubleshoot physical layer network problems.

5.1 USING LANVIEW

LANVIEW is Cabletron Systems built-in visual diagnostic and status monitoring system. You can quickly scan the LANVIEW LEDs to observe network status or diagnose network problems, and determine which node or segment is faulty. Figure 5-1 shows the location and provides a brief deﬁnition of each LED. A detailed description of each LED follows Figure 5-1.

MicroMMAC-24E

RESET

DISPLAY

LED NAME

PWR (Power)

CPU (Central Processing Unit)

CLN (Collision)

RCV (Receive)

10BASE-T HUB

PWR CPU

COM 1COM 2

CLN

LED COLOR

Off Green (Solid)

Off Green (Flashing) Green (Blinking) Red (Solid) Orange (Blinking)

Red Off

Yellow (Flashing) Off

WITH

LANVIEW

RCV LNK

24 23 22

RCV LNK

12 11 10

21 20 19

987

18 17 16

654

15 14 13

32 1

DEFINITION

No Power Power

CPU in BOOT Process CPU Initializing CPU Functioning CPU Not Functioning Ethernet Interface in stand-by condition

Collision No Collision

MicroMMAC is Receiving Data No Activity

E 2

E 1

LNK (Link)

MicroMMAC Installation Guide Page 5-1

Green Off

Link Established No Link

Figure 5-1 LANVIEW LEDs

090817

Chapter 5: Troubleshooting

PWR

The PWR LED indicates the power status of the MicroMMAC. A green LED indicates that the MicroMMAC is receiving power. If this LED is off, it indicates a loss of input power. Check the input power source (circuit breaker, fuse, etc.). If the proper source power is present, the problem could be with the MicroMMAC.

CPU

The CPU LED indicates the operational status of the MicroMMAC processor. This LED alternates from red, to ﬂashing green, to yellow during power-up. If a BRIM is installed, this LED blinks orange for approximately 30 seconds after the boot is complete. This indicates that the front panel Ethernet interface is in a standby condition.

A blinking green LED indicates normal operation. A red LED indicates a faulty processor.

CLN

The CLN LED indicates the collision status of the MicroMMAC ports. A red LED indicates that a collision has occurred on one of the MicroMMAC ports.

RCV

The RCV LED indicates the receive status of the MicroMMAC ports. A ﬂashing yellow LED indicates that the MicroMMAC is receiving data packets from the associated port segment. Each MicroMMAC port has a corresponding RCV LED:

• Network Ports: RCV LEDs 1–24

• EPIM-1: RCV LED E1

• EPIM-2: RCV LED E2

LNK

The LNK LED indicates the link status of the MicroMMAC ports. A green LED indicates an established link between the associated port segment and the 10BASE-T device at the other end of the segment. LNK LEDs remain on as long as a link is maintained. Each Network Port (ports 1–24) has a corresponding LNK LED.

Page 5-2 MicroMMAC Installation Guide

Troubleshooting Checklist

5.2 TROUBLESHOOTING CHECKLIST

If your MicroMMAC is not operating properly, Table 5-1 describes some of the problems that may occur, possible causes for the problem, and suggestions for resolving the problem.

Table 5-1 Troubleshooting Checklist

Problem Possible Causes Recommended Action

No LEDs on. Loss of Power. Check that the MicroMMAC

has adequate power.

Cannot contact the MicroMMAC from in-band management.

User-entered parameters (IP address, Community Names, etc.) are lost when device is powered down.

No power to an external transceiver connected to an EPIM-A.

Improper Community Names table.

MicroMMAC does not have an IP address.

No link to device.

NVRAM reset switch has been toggled and user-entered parameters have been reset to the factory default.

AUI cable may be defective.

Transceiver may be defective .

Refer to the

Management User’s Guide

Community Names Table setup and IP address assignment procedures.

Check the link to the MicroMMAC.

See Chapter 2 for proper use of the NVRAM switch.

If NVRAM is defective, call Cabletron Systems Technical Support.

Replace AUI cable.

Replace transceiver.

MicroMMAC Local

for

High Number of collisions on EPIM ports.

MicroMMAC Installation Guide Page 5-3

EPIM is defective. External

transceiver has SQE enabled.

Replace EPIM. Disable SQE.

APPENDIX A

MicroMMAC SPECIFICATIONS

This appendix lists the operating speciﬁcations for the MicroMMAC. Cabletron Systems reserves the right to change these speciﬁcations at any time without notice.

A.1 OPERATING SPECIFICATIONS

System Speciﬁcations

Shared Memory: 4 MB Expandable Internal Processor: Intel 80960 running at 24 MHz Ethernet Controller: 1 National Semiconductor DP93932 Non-Volatile RAM: 128 kB with battery backup EPROM: 128 kB FLASH Memory: 2 MB Expandable CPU Memory: 4 MB Expandable

A.2 POWER SUPPLY REQUIREMENTS

The MicroMMAC has a universal power supply. Table A-1 lists the input power requirements.

Table A-1 Input Power Requirements

Voltage Range Input Current Frequency Range

120 to 125 VAC 4.0 A max 50 to 60 Hz

The power supply has two outputs of +5 volts and +12 volts. The maximum output power is 125 watts and the minimum efﬁciency is 65% under all conditions of line at full load. Table A-2 lists the minimum and maximum load current from each output.

MicroMMAC Installation Guide Page A-1

Appendix A: MicroMMAC Speciﬁcations

Table A-2 Power Supply Output Specifications

Output Minimum Load Maximum Load Maximum Power

+5 Volts 1.00 Amps 15 Amps 75 Watts +12 Volts 0.15 Amps 4 Amps 48 Watts

A.3 ENVIRONMENTAL REQUIREMENTS

Operating Temperature: 5°C to 40°C (41°F to 104°F) Storage Temperature: -30°C to 90°C (-22°F to 194°F) Operating Humidity: 5% to 95% (non-condensing)

A.4 AGENCY APPROVALS

This unit meets the safety requirements of UL 1950, CSA C22.2 No. 950, EN 60950, and IEC 950.

A.5 EMI REQUIREMENTS

This unit meets the EMI requirements of FCC Part 15 Class A, EN 55022 Class A, and VCCI Class I.

A.6 EMC REQUIREMENTS

This unit meets the EMC requirements of EN 50082-1.

A.7 PHYSICAL SPECIFICATIONS

Dimensions: 2.8H x 17.0W x 13.5D in

(7.2 x 43.6 x 34.6 cm)

Weight (unit): 7 lb

Page A-2 MicroMMAC Installation Guide

APPENDIX B

EPIM SPECIFICATIONS

EPIMs allow the MicroMMAC to attach to the main network using a variety of media types. Cabletron Systems of fers a variety of EPIMs. The following sections provide speciﬁcations for each EPIM.

B.1 EPIM-T

The EPIM-T is an RJ45 connector that supports unshielded twisted pair cabling. It has an internal Cabletron Systems TPT 10BASE-T Twisted Pair T ranscei v er.

The slide switch on the EPIM-T determines the crossover status of the cable pairs. If the switch is on the X side, the pairs are internally crossed over. If the switch is on the = side, the pairs are not internally crossed over. Figure B-1 shows the pinouts for the EPIM-T in both positions.

Position X (crossed over)

1. RX+

2. RX-

3. TX+

4. NC

Position = (not crossed over)

1. TX+

2. TX-

3. RX+

4. NC

5. NC

6. TX-

7. NC

8. NC

Figure B-1 Crossover Switch on the EPIM-T

5. NC

6. RX

7. NC

8. NC

149029

MicroMMAC Installation Guide Page B-1

Appendix B: EPIM Speciﬁcations

B.2 EPIM-F1 AND EPIM-F2

The EPIM-F1 and EPIM-F2 shown in Figure B-2 support multimode ﬁber optic cabling. Each EPIM has an internal Cabletron Systems FOT-F ﬁber optic transceiver. The EPIM-F1 is equipped with SMA connectors and the EPIM-F2 is equipped with ST connectors.

149030

Figure B-2 The EPIM-F1 and EPIM-F2

Table B-1 EPIM-F1 and EPIM-F2 Specifications

Parameter Typical

Value

Receive Sensitivity

Peak Input Power -7.6 dBm -8.2 dBm – – Transmitter Power 50/125 µm Fiber -13.0 dBm -15.0 dBm 13.0 dB 17.5 dB

62.5/125 µm Fiber

-30.5 dBm -28.0 dBm – –

-10.0 dBm -12.0 dBm 16.0 dB 20.5 dB

Worst Case Worst

Case Budget

Typical Budget

149031

100/140 µm Fiber -7.0 dBm -9.0 dBm 19.0 dB 23.5 dB Error Rate

Better than 10

Page B-2 MicroMMAC Installation Guide

-10

EPIM-F3

The transmitter power and receive sensitivity levels listed in Table B-1 represent Peak Power Le v els after optical ov ershoot. You must use a Peak Power Meter to correctly compare the above values to those you measure on any particular port. If you measure Power Levels with an Average Power Meter, you must add 3 dBm to the measurement to correctly compare measured values to the values listed in Table B-1 (e.g., -29.5 dBm peak = -32.5 dBm average).

B.3 EPIM-F3

Figure B-3 shows the EPIM-F3. The EPIM-F3 supports single mode ﬁber optic cabling. It has an internal Cabletron Systems FOT-F ﬁber optic transceiver and is equipped with ST Connectors.

149032

Figure B-3 EPIM-F3

Transmitter power is inversely proportional to temperature rise. Use the Output Power Coefﬁcient to calculate increased or decreased power output for your operating environment. F or example, typical po wer output at 25˚C equals -16.4 dBm. For a 4˚C temperature increase, multiply the typical coefﬁcient (-0.15 dBm) by four, and add the result to typical output power (4 x -0.15 dBm + -16.4 dBm = -17.0 dBm).

MicroMMAC Installation Guide Page B-3

Appendix B: EPIM Speciﬁcations

Table B-2 EPIM-F3 Specifications

Parameter T ypical Value Minimum Maximum

Transmitter Peak Wave Length

Spectral Width 60 nm – 100 nm Rise Time 3.0 ns 2.7 ns 5.0 ns Fall Time 2.5 ns 2.2 ns 5.0 ns Duty Cycle 50.1% 49.6% 50.7% Bit Error Rate

1300 nm 1270 nm 1330 nm

Better than 10

-10

The transmitter power levels and receive sensitivity levels listed in Table B-1 represent Peak Power Levels after optical overshoot. You must use a Peak Power Meter to correctly compare the above values to those you measure on any particular port. If you measure Power Levels with an Average Power Meter, you must add 3 dBm to the measurement to correctly compare those measured values to the values listed above (e.g.,

-29.5 dBm peak = -32.5 dBm average).

Page B-4 MicroMMAC Installation Guide

EPIM-C

B.4 EPIM-C

The EPIM-C supports thin coaxial cabling and is equipped with an internal Cabletron Systems TMS-3 transceiver. Use the TERM switch on the front of the EPIM-C to set the internal 50 Ohm terminator. This eliminates the need to connect the port to a T-connector and terminator. Figure B-4 shows the settings for the terminator switch.

TERM

EPIM-C

Internal Termination Switch = On (internally terminated) = Off (need external termination)

149034

Figure B-4 EPIM-C

Connector T ype

BNC receptacle with gold center contact for use with BNC type T-connectors and RG58 thin coaxial cable.

Grounding

Connecting a thin coaxial segment to earth ground at more than one point could produce dangerous ground currents.

The BNC port of the EPIM-C is not connected to earth ground.

MicroMMAC Installation Guide Page B-5

Appendix B: EPIM Speciﬁcations

B.5 EPIM-A AND EPIM-X

The EPIM-A is a DB15 female connector used to attach segments to an external transceiver. The EPIM-X is equipped with dual internal transceivers. It has a DB15 male connector used to attach segments to an AUI cable. Figure B-5 shows both modules along with DB15 pinouts.

149035

Figure B-5 EPIM-A and EPIM-X (AUI Port)

Pin 1 Logic Ref. Pin 9 Collision -

2 Collision + 10 Transmit 3 Transmit + 11 Logic Ref. 4 Logic Ref. 12 Receive 5 Receive + 13 Power (+12 Vdc) 6 Power Return 14 Logic Ref. 7 No Connection 15 No Connection 8 Logic Ref.

Connector Shell: Positive Ground

Page B-6 MicroMMAC Installation Guide

APPENDIX C

NETWORK PLANNING AND CONFIGURATION

This appendix contains general network guidelines. Before attempting to install the MicroMMAC or any additional EPIMs or BRIMs, review the requirements and speciﬁcations outlined in this appendix.

Your network installation must meet the conditions, guidelines,

CAUTION

C.1 NETWORK CABLE REQUIREMENTS

The network ports of the MicroMMAC support 10BASE-T Shielded Twisted Pair (STP) or Unshielded Twisted Pair (UTP) cabling.

speciﬁcations, and requirements included in this appendix to ensure satisfactory performance of this equipment. Failure to follow these guidelines may produce poor network performance.

EPIMs support UTP, STP, multimode ﬁber optic, single mode ﬁber optic, AUI, or 10BASE2 thin coaxial cabling. The rear panel Interconnect Bus port supports Cabletron Systems HubSTACK Interconnect cables for stackable applications.

Take care in planning and preparing the network cabling and connections. The quality of the connections and the length of cables are critical factors in determining the reliability of the network. The following sections describe requirements for each media type.

C.1.1 HubSTACK Interconnect Cable

Attach the MicroMMAC to modules in the stack with the HubSTACK Interconnect bus cables available only from Cabletron Systems. Refer to Chapter 1 for cable part numbers.

The rear panel of the MicroMMAC has an Interconnect Bus Out port (male connector) to stack SEH non-intelligent hubs together. One MicroMMAC supports a stack of up to four SEH non-intelligent hubs.

MicroMMAC Installation Guide Page C-1

Appendix C: Network Planning and Conﬁguration

C.1.2 10BASE-T UTP and STP Cable

The devices and 10BASE-T twisted pair segments connected to the MicroMMAC and EPIM-T must meet the IEEE 802.3 speciﬁcations listed below:

Length

The IEEE 802.3 10BASE-T standard requires that 10BASE-T devices transmit over a 100 meter (328 foot) link using 22-24 AWG unshielded twisted pair wire. However, cable quality largely determines maximum link length. With high quality, lo w attenuation cable, link lengths of up to 200 meters are achievable. Cable delay limits maximum link length to 200 meters, regardless of the cable type. Cabletron Systems does not recommend UTP cable lengths of more than 100 meters.

Losses introduced by connections at punch-down blocks and

NOTE

other equipment reduce total segment length. For each connector or patch panel in the link, subtract 12 meters from the total length of your cable.

Insertion Loss

The maximum insertion loss allowed for a 10BASE-T link is 11.5 dB between frequencies of 5.0 and 10 MHz. This includes the attenuation of the cables, connectors, patch panels, and reﬂection losses due to impedance mismatches in the link segment.

Impedance

Cabletron Systems 10BASE-T products work on twisted pair cable with 75 to 165 ohms impedance. Unshielded twisted pair cables typically have an impedance of between 85 to 110 ohms.

Shielded twisted pair cables, such as IBM Type 1 cable, are also used. The impedance of IBM Type 1 cable is typically 150 ohms. Higher impedance increases signal reﬂection, but because the cable is shielded, signal reﬂection has little effect on the quality of the received signal due to the lack of crosstalk between the shielded cable pairs.

Page C-2 MicroMMAC Installation Guide

Network Cable Requirements

Jitter

Intersymbol interference and reﬂections can cause jitter in the bit cell timing, resulting in data errors. A 10B ASE-T link must not generate more than 5.0 ns of jitter. If the cable meets the impedance requirements for a 10BASE-T link, jitter should not be a concern.

Delay

The maximum propagation delay of a 10BASE-T link segment must not exceed 1000 ns This 1000 ns maximum delay limits the maximum link segment length to no greater than 200 meters.

Crosstalk

Signal coupling between different cable pairs within a multi-pair cable bundle causes crosstalk. 10B ASE-T transceiv er design alleviates concerns about crosstalk, provided the cable meets all other requirements.

Noise

Crosstalk or externally induced impulses can cause noise. Impulse noise may cause data errors if the impulses occur at very speciﬁc times during data transmission. Generally, noise is not a concern. If noise-related data errors are suspected, it may be necessary to either reroute the cable or eliminate the source of the impulse noise.

Temperature

Multi-pair PVC 24 AWG wires typically have an attenuation of approximately 8 to 10 dB/100 meters at 20°C (68°F). The attenuation of PVC insulated cable varies signiﬁcantly with temperature. At temperatures greater than 40°C (104°F), Cabletron Systems recommends the use of plenum-rated cables to ensure that cable attenuation remains within speciﬁcation.

MicroMMAC Installation Guide Page C-3

Appendix C: Network Planning and Conﬁguration

C.1.3 Multimode Fiber Optic Cable

Table C-1 shows Multimode Fiber Optic Cable speciﬁcations for the EPIM-F1 and EPIM-F2.

Table C-1 Multimode Fiber Optic Cable Specifications

Cable Type Attenuation Maximum Cable Length

50/125 µm 13.0 dB or less

62.5/125 µm 16.0 dB or less 100/140 µm 19.0 dB or less

Attenuation

The maximum allowab le ﬁber optic cable length is 2 km (2187.2 yards). However, IEEE 802.3 FOIRL speciﬁcations specify a maximum of 1 km (1093.6 yards).

T est the ﬁber optic cable with a ﬁber optic attenuation test set adjusted for an 850 nm wavelength. This test veriﬁes that the signal loss in a cable is within an acceptable level. Table C-1 shows the attenuation for each multimode cable type.

Fiber Optic Budget and Propagation Delay

When determining the maximum ﬁber optic cable length to incorporate ﬁber runs into the network, calculate and consider the ﬁber optic budget (a total loss of 10.0 dB or less is permissible between stations) and total network propagation delay.

To determine the ﬁber optic budget, combine the optical loss due to the ﬁber optic cable, in-line splices, and ﬁber optic connectors. Typical loss for a splice and connector (together) equals 1 dB or less.

Propagation delay is the amount of time it takes data to travel from the sending device to the receiving device. Total propagation delay allowed for the entire network is 25.6 µs in one direction (51.2 µs round trip). If the total propagation delay between any two nodes on the network exceeds 25.6 µs, then bridges must be used.

Page C-4 MicroMMAC Installation Guide

Network Cable Requirements

C.1.4 Single Mode Fiber Optic Cable

Table C-2 shows single mode ﬁber optic cable speciﬁcations for the EPIM-F3.

Table C-2 Single Mode Fiber Optic Cable Specifications

Cable Type Attenuation Maximum Cable Length

8/125-12/125 µm 10.0 dB or less The maximum allowab le ﬁber optic

cable length is 5 km (3.1 miles) with bridges at each segment end. However, IEEE 802.3 FOIRL speciﬁcations specify a maximum of 1 km (1093.6 yards).

Attenuation

T est the ﬁber optic cable with a ﬁber optic attenuation test set adjusted for an 1300 nm wavelength. This test veriﬁes that the signal loss in a cable falls within the acceptable level of 10.0 dB or less for any given single mode ﬁber optic link.

Fiber Optic Budget and Propagation Delay

MicroMMAC Installation Guide Page C-5

Appendix C: Network Planning and Conﬁguration

C.1.5 10BASE2 Thin Coaxial Cable

The following speciﬁcations show 10BASE2 thin coaxial cable requirements for the EPIM-C:

Cable T ype

50 ohm RG-58A/U type coaxial cable must be used when making up a 10BASE2 thin coaxial cable segment.

Length

The 10BASE2 thin coaxial cable segment must be no longer than 185 meters (203.5 yards).

Terminators

Terminate each end of a 10BASE2 thin coaxial cable segment.

Connectors

A maximum of 29 T-connectors may be used throughout the length of cable segment for host connections. If an excessive number of barrel connectors are used within the cable segment, such as ﬁnished wall plates with BNC feed-throughs, then a reduced number of host connections may be required. For special network design, contact Cabletron Systems Technical Support.

Grounding

For safety, ground only one end of a 10BASE2 thin coaxial cable segment. Do NOT connect EPIM BNC ports to earth ground.

Connecting a 10BASE2 thin coaxial cable segment to earth ground at more than one point could produce dangerous ground currents.

Page C-6 MicroMMAC Installation Guide

Network Port Speciﬁcations

C.1.6 AUI Cable

The following speciﬁcations show AUI cable requirements for the EPIM-A and EPIM-X:

AUI Cable

The A UI cable must be IEEE 802.3 type cable.

Length

The A UI Cable must not exceed 50 meters (165 feet) in length. If 28 A WG thin ofﬁce drop AUI cable is used, then the maximum cable length is limited to 15.24 meters (50 feet).

Grounding

The connector shell of the EPIM-A and the EPIM-X are connected to ground.

C.2 NETWORK PORT SPECIFICATIONS

The MicroMMAC-22E and MicroMMAC-24E network ports use shielded RJ45 connectors that support both STP and UTP cabling. The MicroMMAC-32E and MicroMMAC-34E use RJ71 connectors for network connections. The following sections provide speciﬁcations for each MicroMMAC model.

MicroMMAC Installation Guide Page C-7

Appendix C: Network Planning and Conﬁguration

C.2.1 MicroMMAC-22E and MicroMMAC-24E

Network Ports

The MicroMMAC-22E and MicroMMAC-24E provide RJ45 connections for network connections. Figure C-1 shows the RJ45 pinouts.

1 2 3 4 5 6 7 8

1. Receive + 5. Not Used

2. Receive - 6. Transmit -

3. Transmit + 7. Not Used

4. Not Used 8. Not Used

149003

Figure C-1 RJ45 Network Ports

C.2.2 MicroMMAC-32E and MicroMMAC-34E

Network Ports

The MicroMMAC-32E and MicroMMAC-34E provide RJ71 connectors for network connections as shown in Figure C-2. Table C-3 shows the pinouts for the RJ71 connector.

Pin 25

Pin 1

Pin 50 Pin 26

Figure C-2 MicroMMAC-34E Network Ports

Page C-8 MicroMMAC Installation Guide

090803

Network Port Speciﬁcations

Table C-3 RJ71 Champ Connector Pinouts

Pin Signal Wire Color Pin Signal Wire Color

1 RX 1- Blue/White 26 RX 1+ White/Blue 2 TX 1- Orange/White 27 TX 1+ White/Orange 3 RX 2- Green/White 28 RX 2+ White/Green 4 TX 2- Brown/White 29 TX 2+ White/Brown 5 RX 3- Gray/White 30 RX 3+ White/Gray 6 TX 3- Blue/Red 31 TX 3+ Red/Blue 7 RX 4- Orange/Red 32 RX 4+ Red/Orange 8 TX 4- Green/Red 33 TX 4+ Red/Green 9 RX 5- Brown/Red 34 RX 5+ Red/Brown 10 TX 5- Gray/Red 35 TX 5+ Red/Gray 11 RX 6- Blue/Black 36 RX 6+ Black/Blue 12 TX 6- Orange/Black 37 TX 6+ Black/Orange 13 RX 7- Green/Black 38 RX 7+ Black/Green 14 TX 7- Brown/Black 39 TX 7+ Black/Brown 15 RX 8- Gray/Black 40 RX 8+ Black/Gray 16 TX 8- Blue/Yellow 41 TX 8+ Yellow/Blue 17 RX 9- Orange/Yellow 42 RX 9+ Yellow/Orange 18 TX 9- Green/Yellow 43 TX 9+ Yellow/Green 19 RX 10- Brown/Yellow 44 RX 10+ Yellow/Brown 20 TX 10- Gray/Yellow 45 TX 10+ Yellow/Gray 21 RX 11- Blue/Violet 46 RX 11+ Violet/Blue 22 TX 11- Orange/Violet 47 TX 11+ Violet/Orange 23 RX 12- Green/Violet 48 RX 12+ Violet/Green 24 TX 12- Brown/Violet 49 TX 12+ Brown 25 N/C Gray/Violet 50 N/C Violet/Gray

MicroMMAC Installation Guide Page C-9

Appendix C: Network Planning and Conﬁguration

C.3 COM PORT SPECIFICATIONS

The RJ45 COM ports supports an Uninterruptible Power Supply (UPS) or access to a Local Management console.

For instructions about conﬁguring a UPS or Local Management

NOTE

These ports support a Digital Equipment Corporation, VT320 terminal or PC emulation of the VT320 terminal. Figure C-3 shows the pinouts for the COM ports.

console to the MicroMMAC, refer to the

Management User’s Guide

MicroMMAC Local

1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8

COM 2

COM Port Pinouts (Console Application)

1. Transmit

2. Data Carrier Detect

3. Data Set Ready

4. Receive Data

Figure C-3 COM Port Pinouts

COM 1

5. Signal Ground

6. Data Terminal Ready

7. Request To Send

8. Clear To Send

090804

C.4 TRANSCEIVER REQUIREMENTS

When connecting an external network segment, using a transcei v er, to the MicroMMAC with an EPIM-A, the following requirements must be met:

• The transceiver or Ethernet Device to which the module will be connected must meet IEEE 802.3 standards, and/or Ethernet Version

1.0 or Version 2.0 standards.

Page C-10 MicroMMAC Installation Guide

Transceiver Requirements

• The Signal Quality Error (SQE) test function on the transceiver must

be disabled if you connect it to a repeater or to an Ethernet Version 1.0 device. In addition, some Version 2.0 equipment does not support the SQE test. Devices that do not support SQE test interpret the SQE test pulse as a collision.

MicroMMAC Installation Guide Page C-11

INDEX

Numerics

10BASE2

connecting 4-10

10BASE-F

connecting 4-6, 4-8

10BASE-T

connecting 4-2, 4-3, 4-5

Alignment sleeves 4-6 AUI

connecting 4-11, 4-13

auto-baud detection 2-3

BNC connector

usage 4-10

BRIMs

adding/replacing 3-9 available 1-8

Cable Requirements

10BASE-2 C-6 10BASE-T C-2 AUI C-7 HubSTACK C-1 multimode fiber C-4

single mode fiber C-5 Caution 1-2 Chassis Cover

removing 3-2 COM Port Specifications C-10

Distributed LAN Monitor

(DLM) 1-5

EMC Requirements A-2 EMI Requirements A-2 Environmental Requirements

operating humidity A-2 operating temperature A-2

storage temperature A-2 EPIM-A B-6 EPIM-C B-5 EPIM-F1 B-2 EPIM-F2 B-2 EPIM-F3 B-3 EPIMs

adding/replacing 3-8

available 1-8 EPIM-T B-1 EPIM-X B-6

SQE switch 4-13

FLASH SIMM

upgrading 3-6

Getting Help 1-10

HubSTACK Interconnect Cables

part numbers 1-9, 3-14

Installing

19-inch rack 3-13

shelf or tabletop 3-11

stacking 3-14

strain-relief bracket 3-12

MicroMMAC Installation Guide Index-1

Index

LANVIEW LEDs

locating 5-1

LCD

saved alarm messages 2-4 saved system messages 2-6 static system messages 2-3 unsaved initialization

messages 2-5

Local Management 1-4

Mode Switches 3-4

Note 1-2 NVRAM switch 2-8

Physical Specifications

dimensions A-2

weight A-2 Ping 3-9 Pinouts

DB15 B-6

RJ21 C-8

RJ45 C-8 Power Supply

output specifications A-2

requirements A-1

T-connector

usage 4-10 Tip 1-2 Transceiver Requirements C-10 Troubleshooting Checklist 5-3

Uninterruptible Power Supply

(UPS) C-10

Warning 1-2

Remote Network Management 1-7 Reset button 2-7

Safety Requirements A-2 Signal Quality Error (SQE) C-11 SMA connectors

usage 4-6

Specifications A-1

Index-2 MicroMMAC Installation Guide

POWER SUPPLY CORD

The mains cord used with this equipment must be a 2 conductor plus ground type with minimum 0.75 mm square conductors and must incorporate a standard IEC appliance coupler on one end and a mains plug on the other end which is suitable for the use and application of the product and that is approved for use in the country of application.

GERMAN:

Die Netzleitung, die mit diesem Geraet benuetzt wird, soll einen zwei Leiter mit Erdleiter haben, wobei die Leiter mindestens 0.75 mm sind, mit einer normalen IEC Geraetesteckdose an einem Ende und einem Geraetestecker am anderen Ende versehen sind, der fuer den Gebrauch und die Anwendung des Geraetes geeignet und der zum Benuetzen im Lande der Anwendung anerkannt ist.

SPANISH:

El cable principal de la red eléctrica utilizado con este equipo debe tener 2 conductores y 1 toma de tierra con un mínimo de 0.75 mm2 cada uno y necesita tener un aparato de acoplamiento standard IEC en un extremo y un enchufe para el cable principal de la red eléctrica en el otro extremo, lo cual sea adecuado para el uso y applicación del producto y lo cual sea aprobado para uso en el pais de applicación.

FRENCH:

Le cordon d' alimentation reliant cet appareil au secteur doit obligatoirement avoir deux fils conducteurs de 0.75 mm2 minimum et un fil de terre. It doit également être équipé du côté appareil d'une fiche agrée IEC et du côte secteur, d'une prise adaptée à l'usage du produit et aux normes du pays où l'appareil est utilisé.

Cabletron Systems MicroMMAC-24E, MicroMMAC-34E, MicroMMAC-22E, MicroMMAC-32E, MicroMMAC-22ES Installation Manual

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