Compaq Netelligent 3512 User manual

Brand: Compaq

Model: Netelligent 3512

Type: User manual

This manual is also suitable for

Netelligent 3612

Netelligent 3512/3612

100Base-T Repeater

User Guide

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

iii

Writer:

Chris Seiter Project: Front Notice Comments: 185811-002

File Name:1_notice.doc Last Saved On:3/28/96 10:29 AM

NOTICE

The information in this publication is subject to change without notice.

COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR

EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR

CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR

USE OF THIS MATERIAL.

This publication contains information protected by copyright. No part of this publication may be

photocopied or reproduced in any form without prior written consent from Compaq Computer

Corporation.

The software described in this guide is furnished under a license agreement or non-disclosure agreement.

The software may be used or copied only in accordance with the terms of the agreement.

Product names mentioned herein may be trademarks and/or registered trademarks of their respective

companies.



1996 Compaq Computer Corporation.

Compaq

Registered United States Patent and Trademark Office.

Netelligent is a trademark of Compaq Computer Corporation.

Compaq Netelligent 3512/3612 100Base-T Repeater User Guide

Second Edition (April 1996)

Part Number 185811-002

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Writer:

Chris Seiter Project: FCC Notice Comments: 185811-002

File Name:2_notice.doc Last Saved On:3/27/96 5:10 PM

Federal Communications Commission Notice

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

Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful

interference when the equipment is operated in a commercial environment. This equipment generates, uses

and can radiate radio frequency energy and, if not installed and used in accordance with the instructions in this

manual, may cause interference to radio communications. Operation of this equipment in a residential area is

likely to cause harmful interference in which case the user will be required to correct the interference at his

own expense.

Class A devices bear a label indicating the interference potential of the device as well as additional operating

instructions for the user, such as the following: This device complies with Part 15 of the Federal

Communications Commission (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.

Canadian Department of Communications

Radio Frequency Statement

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 numriques de la classe A prescrites dans le Règlement sur le brouillage radioélectrique édicté par le

ministères des Communications du Canada.

Modifications

The FCC requires the user to be notified that any changes or modifications made to this device that are not

expressly approved by Compaq Computer Corporation may void the user’s authority to operate the equipment.

Emissions

This equipment complies with EMC directive 89/336/EEC (ITE), which includes EN50081-1 CLASS 1: 1992

(EN55022/CISPR 22 for Class A ITE). It also complies with FCC Class A.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Writer: Chris Seiter Project: FCC Notice Comments: 185811-002

File Name:2_notice.doc Last Saved On:3/27/96 5:10 PM

European Union Notice

Products with the CE (Community European) Marking comply with both the EMC Directive (89/336/EEC)

and the Low Voltage Directive (73/23/EEC) issued by the Commission of the European Community.

Compliance with these directives implies conformity to the following European Norms:

■

EN55022 (CISPR 22) - Electromagnetic Interference

■

EN50082-1 (IEC801-2, IEC801-3, IEC801-4) - Electromagnetic Immunity

■

EN60950 (IEC950) - Product Safety

Safety

This equipment complies with UL 1950, Second Edition; CAN/CSA C22.2 No. 950-93, 73/23/EEC Low

Voltage Directive; TUV Rheinland EN60950, 1988; A1/1990, 1993; and A2/1992, 1992, 1993.

Immunity

This equipment complies with EMC directive 89/336/EEC (ITE), which includes EN 50082-1:

■

IEC 801-2 (Electrostatic Discharge)

■

IEC 801-3 (Radiated Immunity)

■

IEC 801-4 (Electrical Fast Transient/Burst)

■

EN55101-4 (Conducted Immunity) (not currently required)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

vii

Netelligent 3512/3612 100Base-T Repeater User Guide

Writer: Chris Seiter Project: Contents Comments: 185811-002

File Name:Fast_t.doc Last Saved On:3/27/96 5:13 PM

Contents

Preface

Intended Reader .............................................................................................................xi

Chapter Organization .....................................................................................................xi

Chapter 1

Overview

Features........................................................................................................................1-1

Package Contents.........................................................................................................1-2

Repeater Components ..................................................................................................1-4

LED Indicators.............................................................................................................1-4

RJ-45 Ports............................................................................................................1-6

Smart Uplink Port .................................................................................................1-6

Serial COM Port....................................................................................................1-6

Power Supply........................................................................................................1-7

Migrating from 10Base-T to Fast Ethernet ..................................................................1-8

Fast Ethernet Repeater Management............................................................................1-9

Internal DIP Switch.............................................................................................1-10

100Base-T Repeater Expansion.................................................................................1-10

Management Expansion......................................................................................1-11

Ethernet Expansion.............................................................................................1-11

Extending Your Network with Smart Uplink Modules ......................................1-12

Smart Uplink Configuration Examples...............................................................1-13

Smart Uplink Configuration 1.............................................................................1-14

Smart Uplink Configuration 2.............................................................................1-15

Smart Uplink Configuration 3.............................................................................1-16

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

viii

Writer: Chris Seiter Project: Contents Comments: 185811-002

File Name:Fast_t.doc Last Saved On:3/27/96 5:13 PM

Chapter 2

Planning Repeater Installation

Optional Hardware.......................................................................................................2-1

Installation Requirements.............................................................................................2-1

Environmental Requirements................................................................................2-1

Electrical Requirements........................................................................................2-2

Spatial Requirements ............................................................................................2-2

Cable Requirements .....................................................................................................2-2

Understanding Fast Ethernet Cable Budgets.........................................................2-3

Checking Your Cable Budget...............................................................................2-3

Cable Types and Distance Limitations .................................................................2-4

Smart Uplink Port Cable.......................................................................................2-8

Modem Cable........................................................................................................2-8

System Planning Charts ...............................................................................................2-9

Repeater Setup and Cabling Chart........................................................................2-9

Rack Inventory Chart..........................................................................................2-10

Chapter 3

Installing the Repeater

Mounting the Repeater.................................................................................................3-1

Attaching the Rubber Feet ....................................................................................3-1

Rack-Mounting the Repeater ................................................................................3-1

Installing a Smart Uplink Module................................................................................3-3

Inserting the SUM.................................................................................................3-3

Connecting Twisted-Pair Cable ...................................................................................3-4

Interconnecting Repeaters............................................................................................3-5

Connecting Power........................................................................................................3-6

Disconnecting Power ............................................................................................3-7

Installing a Redundant Power Supply Module.............................................................3-8

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Netelligent 3512/3612 100Base-T Repeater User Guide

Writer: Chris Seiter Project: Contents Comments: 185811-002

File Name:Fast_t.doc Last Saved On:3/27/96 5:13 PM

Chapter 4

Repeater Management

Supported MIBs...........................................................................................................4-1

Supported Frame Types ...............................................................................................4-1

NVRAM.......................................................................................................................4-2

SNMP Management.....................................................................................................4-2

IP Support .............................................................................................................4-2

IP Autodiscovery Support.....................................................................................4-3

IPX Support ..........................................................................................................4-4

RMON Support............................................................................................................4-5

Statistics Group.....................................................................................................4-5

History Group .......................................................................................................4-5

Alarm Group.........................................................................................................4-6

Event Group..........................................................................................................4-6

Intrusion Protection......................................................................................................4-7

Changing the Status of a Port................................................................................4-7

Security.................................................................................................................4-8

Configuring the Repeater at Bootup.............................................................................4-8

Using the VT100 Serial Port/Telnet Management Interface........................................4-9

Boot Mode.......................................................................................................4-10

Runtime Mode.................................................................................................4-10

Setting Up the Terminal Emulation Program......................................................4-10

Starting the Management Session.......................................................................4-11

Error Messages................................................................................................4-12

Navigating Menu Option Screens.......................................................................4-13

Viewing System Information..............................................................................4-14

Error Messages................................................................................................4-14

Viewing the Stack Configuration........................................................................4-15

Viewing the Backup Port Configuration.............................................................4-16

Adding a Backup Port ....................................................................................4-16

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Writer: Chris Seiter Project: Contents Comments: 185811-002

File Name:Fast_t.doc Last Saved On:3/27/96 5:13 PM

Deleting a Backup Port....................................................................................4-17

Updating the State of a Backup Port Entry .....................................................4-17

Error Messages................................................................................................4-17

Viewing Port Statistics........................................................................................4-18

Viewing Port Group Statistics.............................................................................4-19

Changing Your Password....................................................................................4-20

Error Messages................................................................................................4-20

Downloading Firmware ......................................................................................4-21

Setting Up the Modem........................................................................................4-23

Logging Out of the Management Session...........................................................4-24

Appendix A

Specifications

Physical.......................................................................................................................A-1

Electrical .....................................................................................................................A-1

Environmental.............................................................................................................A-1

Appendix B

Internal DIP Switch

Appendix C

Upgrading the DRAM

Installing a SIMM .......................................................................................................C-1

Glossary

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Netelligent 3512/3612 100Base-T Repeater User Guide

Writer: Chris Seiter Project: Preface Comments: 185811-002

File Name:Fast_p.doc Last Saved On:3/27/96 5:14 PM

Preface

This guide contains information about how to install, operate, and manage the

Compaq Netelligent 3512/3612 100Base-T Repeater. We recommend that you

read all chapters in this guide to become familiar with the repeater's features

and to ensure a successful installation.

Intended Reader

This guide is written for network administrators and technicians responsible for

hardware installation.

Chapter Organization

The contents of this guide are organized as follows:

Chapter 1  Provides an overview of the repeater and describes the repeater's

features and components.

Chapter 2  Helps you plan the installation of the repeater. It includes all

repeater installation requirements as well as charts for planning the repeater

setup and rack inventory.

Chapter 3  Provides instructions for installing the repeater, installing a

Smart Uplink Module (SUM), interconnecting repeaters, and powering up the

repeater.

Chapter 4  Provides information about in-band and out-of-band repeater

management, including SNMP, RMON, Telnet, and the VT100 console

interface.

Appendix A  Includes the repeater's physical, electrical, and environmental

specifications.

Appendix B  Shows the available settings for the repeater's internal DIP

switch in case a hardware override is required.

Appendix C  Provides instructions for installing additional DRAM, which

allows the repeater to collect a larger number of RMON statistics.

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

xii Preface

Writer: Chris Seiter Project: Preface Comments: 185811-002

File Name:Fast_p.doc Last Saved On:3/27/96 5:14 PM

The Glossary  provides definitions for terms related to repeaters, as well as

general networking terms.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1

Netelligent 3512/3612 100Base-T Repeater User Guide

Writer: Chris Seiter Project: Chapter 1 Comments: 185811-002

File Name:Fast_1.doc Last Saved On:7/10/96 9:46 AM

Chapter 1

Overview

The Compaq Netelligent 3512 and 3612 100Base-T Repeaters are designed to

bring reliable 100 Mb/s performance to your desktop. Compaq Smart Uplink

technology lets you interconnect the repeaters to increase the diameter of your

network beyond the normal limitations set by 100Base-T Class 1 specifications.

You can also integrate the repeater into your existing 10Base-T network using a

switch, bridge, or router. The series offers a wide array of features for a

versatile, low-cost stackable repeater solution.

The repeaters are available in two models:

■

Model 3612 — 12-port managed 100Base-TX repeater (Part No.

267007-001)

■

Model 3512 — 12-port unmanaged 100Base-TX repeater (Part No.

267008-001)

Features

The repeaters provide these features:

■

12 RJ-45 ports, one Smart Uplink port for a Smart Uplink Module

(SUM), and one console port for Telnet and TFTP support (Model 3612

only)

■

12 bi-colored LED indicators show port activity, port link, and port

disable/auto partition; other LEDs show collisions, the currently selected

backplane, the power supply status, and the management status of the

repeater

■

Smart Uplink capability extends the distance between repeaters to up to

100 meters/328 feet (or 412 meters/1352 feet with fiber) and lets you

integrate multiple 100 Mb/s repeaters into an existing 100Base-T

configuration without normal repeater hop limitations

■

Four-group RMON (Remote MONitor) support allows remote

diagnostic monitoring via the network management system

■

Fast Ethernet wiring standards ensure compatibility with all types of

UTP cabling

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2 Overview

Writer: Chris Seiter Project: Chapter 1 Comments: 185811-002

File Name:Fast_1.doc Last Saved On:7/10/96 9:46 AM

■

Expandable to five repeaters in a stack, providing up to 60 workstation

connections

■

Segmentable on a per-unit basis, or, by interconnecting repeaters with a

FlexPlane backplane, all repeaters in a stack can share up to three

common backplane segments

■

Master/slave design allows unmanaged repeaters (Model 3512) to be

managed by a single managed repeater (Model 3612)

■

Redundant hot-swappable load-sharing power supply (90W) capability

■

Port intrusion and security support

■

Rack-mountable chassis

Package Contents

Before you start to install the repeater, verify that the package contains the

following items:

■

Model 3512 or 3612 100Base-T 12-port repeater

■

Shielded AC power cord

■

Rack-mount kit (two side mounting brackets, eight 3/8-inch bracket

screws, and four 1/2-inch rack mount screws)

■

Four adhesive-backed rubber feet

■ Compaq Netelligent 3512/3612 100Base-T Repeater User Guide

■

Limited warranty

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-3

Netelligent 3512/3612 100Base-T Repeater User Guide

Writer: Chris Seiter Project: Chapter 1 Comments: 185811-002

File Name:Fast_1.doc Last Saved On:7/10/96 9:46 AM

Rack-Mounting Brackets

Power Cord

3512/3612 100Base-T Class I Repeater

1/2-inch Rack Mount Screws (4)

3/8-inch Bracket Screws (8)

Rubber Feet (4)

PWR A

BP3

BP2

BP1

COL

PWR B

STATUS

COM PORT

1 2 3 4 5 6 7 9 10 11 128

XXXXXXXXXXXX

Limited Warranty

3512/3612 100Base-T

Class I Repeater

User Guide

Backplane Connector

(Optional)

Smart Uplink Modules

(Optional)

Limited Warranty

COLLISION

ACTIVITY

COLLISION

ACTIVITY

COLLISION

ACTIVITY

TX RX

SMARTUP-T4

SMARTUP-TX

SMARTUP-FX

SMARTUP-FXSC

100BASE-TX

100BASE-T4

100BASE-FX

Figure 1-1. Package Contents

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-4 Overview

Writer: Chris Seiter Project: Chapter 1 Comments: 185811-002

File Name:Fast_1.doc Last Saved On:7/10/96 9:46 AM

Repeater Components

This section provides an overview of the repeater's components. Figures 1-2

and 1-3 show the repeater's front and back panels:

PWR A

BP3

BP2

BP1

COL

PWR B

STATUS

COM PORT

234 567 91011128

XXXXXXXXXXXX

Serial COM Port

(for out-of-band management

and firmware upgrade —

Model 3612 only)

RJ-45 Ports and LEDs

Power Supply A, Power Supply B,

and Status LEDs

Collision, Backplane 1,

Backplane 2, and Backplane 3

LEDs

Smart Uplink Module Port

Figure 1-2.

Repeater Front Panel

PWR A

PWR B

DOWN

Main Power Supply Redundant Power Supply Hub Expansion Ports

Figure 1-3. Repeater Back Panel

LED Indicators

The repeater has several LED indicators to help you monitor and manage the

repeater. The LEDs on the left side of the front panel indicate the status of both

power supplies (PWR A/main and PWR B/redundant) and the general repeater

status. The LEDs on the right side of the front panel show the collision status of

the repeater and the current backplane selection (1, 2, or 3). The LEDs above

the RJ-45 ports indicate activity at those ports.

When you power on a managed repeater (Model 3612), it performs a power-on

self test (POST), which lasts approximately 1 minute, depending on the amount

of DRAM installed in the repeater (see Appendix C “Upgrading the DRAM”).

After the POST, all LEDs automatically change to their normal modes of

operation.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-5

Netelligent 3512/3612 100Base-T Repeater User Guide

Writer: Chris Seiter Project: Chapter 1 Comments: 185811-002

File Name:Fast_1.doc Last Saved On:7/10/96 9:46 AM

Table 1-1 describes the repeater LEDs.

Table 1-1

LED Operations and Descriptions

LED Status and Meaning

RJ-45 Ports

Solid Green

 Successful link test

Flashing Green  Port activity

Solid Yellow  Port has been partitioned/disabled

Off  Link test failure or no connection to the port

PWR A (Power Supply A)

and

PWR B (Power Supply B)

Solid Green  Power supply installed and operating properly

Solid Yellow  Power supply installed but not operating properly

Off  Power supply not installed

STATUS

Managed Repeater (Model 3612):

Off  The repeater is not currently managed by a managing repeater.

Solid Green  The repeater is currently managed by a managing repeater.

Solid Yellow  The repeater is currently managed by a managing repeater and

has the hardware override switch enabled. See Appendix B, “Internal DIP

Switch.”

Unmanaged Repeater (Model 3512):

Off  Basic firmware failure preventing the firmware from functioning correctly

Solid Yellow  The repeater is booting up and is not ready to manage.

Flashing Yellow  The POST failed.

Solid Green  The repeater successfully finished POST and ready to manage.

Flashing Green  The hardware override switch is enabled and the repeater is

ready to manage.

COL (Collision)

Flashing Yellow  Global collisions are occurring anywhere in the repeater's

collision domain

Off  No collisions

BP1 BP2 or BP3

(Backplane)

Green  Shows the currently selected backplane

Off  Shows that the backplane is not currently selected

NOTE: LEDs listed as “Yellow” might appear orange on the front panel.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-6 Overview

Writer: Chris Seiter Project: Chapter 1 Comments: 185811-002

File Name:Fast_1.doc Last Saved On:7/10/96 9:46 AM

RJ-45 Ports

The repeater has 12 RJ-45 ports that let you connect UTP or STP cabling to

workstations and servers in a 100Base-T network.

Smart Uplink Port

The Smart Uplink port houses a Smart Uplink Module (SUM), which serves as

a connection point between repeaters, repeater stacks, and other manufacturers'

100Base-T repeaters or stacks. SUMs let you extend your network without the

usual repeater hop limitations inherent with Class I repeaters.

COLLISION

ACTIVITY

SMARTUP-TX

100BASE-TX

Figure 1-4.

Smart Uplink Module

Serial COM Port

The managed repeater (Model 3612) has a serial COM port that uses a DB9

connector with a standard AT pinout. This port lets you perform the following

operations:

■

XMODEM Flash downloads

■

SLIP (Serial Line Internet Protocol) transfers

■

including remote (out-of-band) management (Statistics, History, Alarm,

and Event RMON groups), and TFTP Flash downloads.

■

VT100 console interface for basic management

See Chapter 4, “Repeater Management," for more information about the serial

COM port.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-7

Netelligent 3512/3612 100Base-T Repeater User Guide

Writer: Chris Seiter Project: Chapter 1 Comments: 185811-002

File Name:Fast_1.doc Last Saved On:7/10/96 9:46 AM

Power Supply

The repeaters are equipped with a single 90-watt power supply module (Part

No. 267322-001). If desired, you can purchase another power supply and

operate the repeater in a redundant power supply configuration. The repeater

has two power supply bays on the back panel. The left bay houses the main

power supply (A). The right bay houses the redundant power supply (B).

100-240 VAC, 3A-1.5A,50/60 HZ

Figure 1-5.

90-Watt Power Supply

PWR A

PWR B

DOWN

Main Power Supply Redundant Power Supply

Figure 1-6. Power Supply Bays

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-8 Overview

Writer: Chris Seiter Project: Chapter 1 Comments: 185811-002

File Name:Fast_1.doc Last Saved On:7/10/96 9:46 AM

Migrating from 10Base-T to

Fast Ethernet

Fast Ethernet (100Base-T) has evolved from standard Ethernet (10Base-T).

Therefore, migrating to Fast Ethernet is fairly simple. Consider the following

three suggestions as you incorporate Fast Ethernet into your network:

■

Purchase dual-speed Network Interface Cards (NICs) from this point

forward. These NICs operate at 10 Mb/s or 100 Mb/s, so you can use

them with your 10Base-T repeaters now and continue to use them when

you decide to purchase 100Base-T equipment.

■

Verify that any fiber runs you plan to use at 100 Mb/s meet the distance

limitations discussed in the “Cable Requirements” section in Chapter 2,

“Planning Repeater Installation.”

■

Purchase 100Base-TX repeaters and reconnect the dual-speed NICs to

these repeaters. Interconnect the 10 Mb/s and 100 Mb/s networks using a

server, dual-speed switch, or a router.

Figure 1-7 shows an example of a network configuration that incorporates both

10Base-T and Fast Ethernet equipment, including the 100Base-TX repeater.

100Base-T

Uplink Module

10/100 Repeater

10/100 Workstation

Server

10 Mbps 10 Mbps

100 Mbps

Repeater

100Base-TX Repeater

Smart Uplink

Module

Figure 1-7. Integrating 10Base-T and Fast Ethernet

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-9

Netelligent 3512/3612 100Base-T Repeater User Guide

Writer: Chris Seiter Project: Chapter 1 Comments: 185811-002

File Name:Fast_1.doc Last Saved On:7/10/96 9:46 AM

Fast Ethernet Repeater Management

The managed 100Base-T repeater (Model 3612) contains a Management

Daughtercard (MDC100), which provides SNMP management through both in-

band and out-of-band communications. This repeater uses a master/slave

management architecture in conjunction with the repeater hardware to provide

four-group RMON support (Statistics, History, Alarm, and Event) in a stack of

100Base-T repeaters.

In addition to normal repeater operation, all managing repeaters provide in-

band and out-of-band management via a dedicated local MAC port and the

front panel, DB9, COM port:

■

In-band (or out-of-band via SLIP): SNMP, RMON, Telnet console, and

TFTP download

■

Out-of-band via VT100 interface: Same console as Telnet and firmware

upgrades

You can perform the following operations via a network management

application, such as the HubView Network Management System:

■

Select the backplane

■

Enable or disable ports

■

Enable port intrusion and security

■

Monitor port link status, port partition/enable status, and port statistics

NOTE: The repeater retains most configuration settings when powered down and

automatically re-initializes during the power-up cycle.

For more information about the repeater's management capabilities, see Chapter

4, “Repeater Management.”

Internal DIP Switch

If management is not available for the repeater, you can isolate a repeater's

collision domain from the other repeaters in the stack by setting an internal DIP

switch. This switch is accessible through the Power Supply A or B opening.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-10 Overview

Writer: Chris Seiter Project: Chapter 1 Comments: 185811-002

File Name:Fast_1.doc Last Saved On:7/10/96 9:46 AM

See Appendix B, “Internal DIP Switch” for information about switch settings.

CAUTION: Remove power from the repeater before you set the DIP

switch.

NOTE: Use the DIP switch only when all other configuration methods are

unsuccessful.

100Base-T Repeater Expansion

Each 100Base-T repeater has an expansion interface that consists of two 100-

pin connectors (UP and DOWN) on the repeater's back panel. You can achieve

both management and Ethernet expansion by connecting the UP connector of a

lower repeater to the DOWN connector of an upper repeater using a FlexPlane

connector (Part No. 810172-000).

PWR A

PWR B

DOWN

PWR A

PWR B

DOWN

FlexPlane

Connector

100-240 VAC, 3A-1.5A,50/60 HZ

100-pin Connectors

Figure 1-8.

FlexPlane Interconnection

Management Expansion

The FlexPlane includes a management bus that enables one managed repeater

to manage all other unmanaged 100Base-T repeaters in a stack. All internal

stack management is out-of-band so that there is no impact on your network

traffic.

Page is loading ...

Compaq Netelligent 3512 User manual

Brand: Compaq

Model: Netelligent 3512

Type: User manual

This manual is also suitable for

Netelligent 3612

Download PDF

report

Compaq Netelligent 3512 User manual

This manual is also suitable for

Compaq Netelligent 3512 User manual

Related papers

Other documents