3com SuperStack 3 Manuel utilisateur

http://www.3com.com/

SuperStack

®

3

Advanced RPS

User Guide

3C16071B

Part No. DUA1607-0AAA04

Rev. 01

Published November 2000

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3Com Corporation

5400 Bayfront Plaza

Santa Clara, California

95052-8145

documentation may be reproduced in any form or by any means or used to

make any derivative work (such as translation, transformation, or

adaptation) without written permission from 3Com Technologies.

3Com Technologies reserves the right to revise this documentation and to

make changes in content from time to time without obligation on the part

of 3Com Technologies to provide notification of such revision or change.

3Com Technologies provides this documentation without warranty, term, or

condition of any kind, either implied or expressed, including, but not limited

to, the implied warranties, terms or conditions of merchantability,

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improvements or changes in the product(s) and/or the program(s) described

in this documentation at any time.

If there is any software on removable media described in this

documentation, it is furnished under a license agreement included with the

product as a separate document, in the hard copy documentation, or on

the removable media in a directory file named LICENSE.TXT or

!LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and

a copy will be provided to you.

UNITED STATES GOVERNMENT LEGEND

If you are a United States government agency, then this documentation and

the software described herein are provided to you subject to the following:

All technical data and computer software are commercial in nature and

developed solely at private expense. Software is delivered as “Commercial

Computer Software” as defined in DFARS 252.227-7014 (June 1995) or as

a “commercial item” as defined in FAR 2.101(a) and as such is provided

with only such rights as are provided in 3Com’s standard commercial license

for the Software. Technical data is provided with limited rights only as

provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987),

whichever is applicable. You agree not to remove or deface any portion of

any legend provided on any licensed program or documentation contained

in, or delivered to you in conjunction with, this User Guide.

Portions of this documentation are reproduced in whole or in part with

permission from (as appropriate).

Unless otherwise indicated, 3Com registered trademarks are registered in

the United States and may or may not be registered in other countries.

3Com, LinkBuilder, NETBuilder, NETBuilder II, SuperStack, AccessBuilder,

and Transcend are registered trademarks of 3Com Corporation. The 3Com

logo and LinkConverter are trademarks of 3Com Corporation.

Adobe and Acrobat are registered trademarks of Adobe Systems

Incorporated.

All other company and product names may be trademarks of the respective

companies with which they are associated.

Environmental Statement about the Documentation

The documentation for this product is printed on paper that comes from

sustainable, managed forests; it is fully biodegradable and recyclable, and is

completely chlorine-free. The varnish is environmentally-friendly, and the

inks are vegetable-based with a low heavy-metal content.

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How to Use This Guide 8

Conventions 8

Related Documentation

The following documents will provide additional useful information.

■

Advanced RPS Type 1 Power Module User Guide

(DUA1607-2AAA0X)

■

Advanced RPS Type 1 ‘Y’ Cable User Guide

(DUA1607-9AAA0X)

■

Advanced RPS Type 2A Power Module User Guide

(DUA1607-4AAA0X)

If you are looking for: Turn to:

An overall description of the Advanced RPS. Chapter 1

How to install the Advanced RPS. Chapter 2

Safety Information applicable to the Advanced RPS Appendix A

Technical Information about the Advanced RPS. Appendix B

Permitted configurations for the Power Modules. Appendix C

Troubleshooting. Appendix D

How you can contact 3Com for support. Appendix E

Tab le 1

Notice Icons

Icon Notice Type Description

Information note Information that describes important features or

instructions

Caution Information that alerts you to potential loss of data or

damage to an application, system, or device or potential

hazards relating to installation.

Warning Information that alerts you to potential personal injury

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Documentation Comments

9

■

Advanced RPS Type 2 ‘Y’ Cable User Guide

(DUA1607-8AAA0X)

■

Advanced RPS Type 3 Power Module Installation Guide

(DUA1607-5AAA0X)

■

Advanced RPS Type 3 ‘Y’ Cable Installation Guide

(DUA1607-7AAA0X)

Documentation Comments

Your suggestions are very important to us. They will help make our

documentation more useful to you. Please e-mail comments about

this document to 3Com at:

pddtechpubs_comments@3com.com

Please include the following information when commenting:

■

Document title

■

Document part number (on the title page)

■

Page number (if appropriate)

Example:

■

SuperStack 3 Advanced RPS User Guide

■

Part Number DUA1607-0AAA03

■

Page 21

Product Registration

You can now register your SuperStack unit on the 3Com web site

to receive up-to-date information on your product:

http://support.3com.com/warrantyregistration/register.pl

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10

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This chapter contains introductory information about the

SuperStack

®

3 Advanced Redundant Power System (RPS), its

associated products, and how they can be used to support your

SuperStack network devices. It covers the following topics:

■

About the Advanced RPS

■

Advanced RPS Chassis — Front View Detail

■

Advanced RPS Chassis — Rear View Detail

■

Power Modules

■

Power Module Cables

■

Using the Advanced RPS

About the Advanced RPS

The SuperStack 3 Advanced RPS offers you the ability to supply

power to your SuperStack network devices in the event of a failure of

an internal power supply. Alternatively, some SuperStack 3 units can

use the Advanced RPS as their default power supply, and if this fails

they revert to their internal power supply. Check the Getting Started

Guide that accompanies your Switch for more information.‘

The Advanced RPS chassis, in combination with a range of power

modules and an optional management module allows you to choose

the most suitable redundant power solution for your SuperStack

network devices. The Advanced RPS can supply power for up to eight

SuperStack networking units (subject to the loading limitations

detailed in Appendix C).

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Advanced RPS Chassis — Front View Detail

Figure 1

Front View of the Advanced RPS Chassis

LEDs

The Advanced RPS chassis has LEDs visible on the front panel that

indicate the status of the AC power inputs, the power modules, and

the temperature of the chassis itself.

One INPUT LED is allocated to each AC power input socket. Socket A

is the right-hand one of the two sockets (labelled Primary Pwr A)

when looking at the rear of the unit.

Two OUTPUT LEDs, arranged vertically, are allocated to each power

module slot on the rear of the Advanced RPS. The numbering of the

slots, when looking at the rear of the unit, is:

■

Top row (left to right) — 7, 5, 3, 1

■

Bottom row (left to right) — 8, 6, 4, 2

The OVERTEMP LED provides an indication of the chassis

temperature status.

Table 1 lists the LEDs visible on the front of the Advanced RPS chassis

and their status according to color. For information on using the LEDs

for troubleshooting, see Appendix D.

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Advanced RPS Chassis — Rear View Detail

13

Table 1

LED behavior

Advanced RPS Chassis — Rear View Detail

Figure 2

Rear View of the Advanced RPS Chassis

Power Sockets (Mains AC Power)

The Advanced RPS chassis has two AC mains inputs, labelled Primary

Pwr A and Backup Pwr B. It provides dual phase support, that is, it

LED Color Indicates

AC Power Inlet Status LEDs

INPUT OK

A and B

Green AC power is connected to relevant input and is OK.

Off AC power is not connected to relevant input or there is an AC

power fault.

Power Module Status LEDs

OUTPUT OK Green Power module is connected to a SuperStack unit, and is

enabled and supplying power.

Off Power module is not present, is not enabled, or is not supplying

power.

OUTPUT

FAULT

Yellow Power module is required to deliver power but cannot.

Off Power module is OK.

Chassis Temperature Status LED

OVERTEMP Yellow Temperature within the Advanced RPS chassis is too high or a

fan has failed.

Off Temperature and fan operation within the Advanced RPS is OK.

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accepts its mains power from two AC sources that can be from

separate phases.

3Com require that you confirm that your chassis supports the dual

phase feature by checking that “3C16071A” or “3C16071B” appears

on the serial number label on the base of the chassis, the front panel

overlay, and also on the packaging label. If the “A” or “B” suffix is not

shown, the 3C16071 does not provide dual phase support and must

be powered from AC sources of the same phase.

As the Advanced RPS chassis (3C16071B) can be powered from

different phases, it is possible to connect one of the mains inlets to

an Uninterruptible Power System (UPS), such as the SuperStack UPS.

The Advanced RPS chassis will always draw power through mains

inlet A (labelled Primary Pwr A) in preference to inlet B (labelled

Backup Pwr B). You should ensure that your primary power source is

always connected to inlet A, and the backup supply connected to

inlet B.

If the power to inlet A fails, the chassis will reset and switch to use

inlet B. If the power to inlet A recovers, the chassis will reset again

and change back to use its primary power source, inlet A. The reset

time is approximately 13 seconds.

Power Module Slots

You can fit a selection of power modules into the chassis. Refer to

“Power Modules” on page 15 for details of the power modules

available to fit in the chassis. The numbering of the power module

slots, when looking at the rear of the unit, is:

■

Top row (left to right) — 7, 5, 3, 1

■

Bottom row (left to right) — 8, 6, 4, 2

Management Module Slot

You can use this slot to install an optional management module

(3C16080) into the rear of the Advanced RPS chassis. It allows

full management of the Advanced RPS via SNMP (Simple Network

Management Protocol).

With an SNMP manager, such as the 3Com Transcend

®

Network

Manager, you have access to the management data over a network

connection. You can also receive traps sent by the module.

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Power Modules

15

Power Modules

There are four power modules available that offer different DC

power outputs. Select the appropriate module for each SuperStack

unit you want to connect to the chassis. Details of the SuperStack

equipment requirements are given in Appendix C and the manual

that accompanies the power module. You may also find these details

in the manual that accompanies your networking product.

Type 1 60 W Power Module — 3C16072

This module is suitable for powering a specific range of SuperStack

units. See Appendix C for a list of these units. A standard DC power

cable is supplied with each module. A front view of the module

connector is shown in Figure 3.

Figure 3

Front View of Connector for 3C16072 and 3C16073 (Type 1)

Type 1 100 W Power Module — 3C16073

This module is suitable for powering a specific range of SuperStack

units. See Appendix C for a list of these units. A standard DC power

cable is supplied with each module. A front view of the module

connector is shown in Figure 3.

Type 2A (100 W) Power Module — 3C16074A

This module is suitable for powering a specific range of SuperStack

units. See Appendix C for a list of these units. This module provides

an extra power rail at 3.3 V through the connector shown in

Figure 4. A Type 2 DC power cable is supplied with each module.

CAUTION:

The Advanced RPS chassis (3C16071A and 3C16071B)

does not support the Type 2 Power Module (3C16074). You must use

a Type 2A Power Module (3C16074A).

Figure 4

Front View of Connector for 3C16074A (Type 2A)

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Type 3 (325 W) Power Module — 3C16075

This module is suitable for powering a specific range of SuperStack

units. See Appendix C for a list of these units. This module provides

+27 V through the connector. A Type 3 DC power cable is supplied

with each module.

CAUTION: The Type 3 DC Power Module is for installation by suitably

qualified service personnel only. Refer to the Type 3 Power Module

Installation Guide.

If you cannot find your SuperStack unit listed in Appendix C, consult

the User Guide that accompanied the unit for its DC power rating, or

your supplier.

Power Module Cables

There are two types of DC cable available for each power module:

■

Standard DC Cable — supplied with each power module.

Use the standard DC cable to provide power redundancy by

connecting the outlet of the power module to the Redundant

Power System socket on the rear of the SuperStack unit.

■

Optional ‘Y’ DC Cable — obtained from your supplier.

Use a DC ‘Y’ cable of the appropriate type to provide full

redundancy by connecting the two short leads to two power

module outlets and the long lead to the Redundant Power System

socket on the rear of the SuperStack unit.

CAUTION: Do not attempt to use a ‘Y’ Cable to power two separate

SuperStack units. The equipment may not operate.

Type 1 DC Cables

Use a standard DC cable, supplied with each Type 1 60 W and 100 W

Power Module, to connect a Type 1 Power Module to a SuperStack

unit.

An optional ’Y’ DC cable (3C16079) is available to connect two

Type 1 60 W or two Type 1 100 W Power Modules to a SuperStack

unit for full redundancy.

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Power Module Cables

17

Figure 5

Type 1 DC ‘Y’ Cable (3C16079)

Type 2 DC Cables

Use a Type 2 DC cable, supplied with each Type 2A Power Module, to

connect a Type 2A Power Module to a SuperStack unit.

An optional Type 2 ’Y’ DC cable (3C16078) is available to connect

two Type 2A Power Modules to a SuperStack unit for full

redundancy.

Type 2 DC cables can be used with the Type 2 Power Module

(3C16074) or the Type 2A Power Module (3C16074A).

Figure 6

Type 2 DC ‘Y’ Cable (3C16078)

Type 3 DC Cables

Use a Type 3 DC cable, supplied with each Type 3 Power Module, to

connect a Type 3 Power Module to a SuperStack unit.

An optional Type 3 ’Y’ DC cable (3C16077) is available to connect

two Type 3 Power Modules to a SuperStack unit for full redundancy.

CAUTION:

The Type 3 DC Power Module is for installation by suitably

qualified service personnel only. Refer to the Type 3 Power Module

Installation Guide.

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Figure 7

Type 3 DC ‘Y’ Cable (3C16077)

Using the Advanced RPS

There are several ways you can use the Advanced RPS to benefit your

network and protect against internal PSU failure on your SuperStack

units. These are detailed below.

Standard Usage

Connect your SuperStack unit directly to the power module using the

standard DC cable supplied with the module (see Figure 8). The

power module acts as a highly reliable power supply that can be

swapped in the event of a failure.

CAUTION: Do not connect your SuperStack units to the AC mains

supply.

Figure 8

Advanced RPS Standard Usage Configuration

Managed Redundancy

Managed Redundancy can only be used with a SuperStack unit that

has the auto-enable feature. For units that support this feature, see

Appendix C.

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Using the Advanced RPS

19

The SuperStack unit is supplied with power from an AC mains supply.

A power module is connected using the standard DC cable to the

RPS socket on the SuperStack unit (see Figure 9). If the internal

power supply fails, the SuperStack unit enables the Advanced RPS.

CAUTION:

If the product you are connecting to the power module

does not have the auto-enable feature, ensure the mains cable is

removed from it before attempting to connect it to the

Advanced RPS

.

When the Advanced RPS takes over supplying power to the

SuperStack unit, the unit may reset, as in a power cycle.

Some SuperStack units, when set up in this configuration, can use

the Advanced RPS as their primary source of power. In the case of

Advanced RPS failure, the SuperStack unit’s own PSU acts as a

redundant power supply and will take over supplying power to the

SuperStack unit. Please refer to the documentation that accompanies

the SuperStack unit for more information.

Figure 9

Advanced RPS Managed Redundancy Configuration

Full Redundancy

This is the mission-critical mode of use, offering full redundancy. This

configuration provides the most resilience for your network.

The SuperStack unit takes no power from the AC mains supply, and

should not be directly supplied with mains power. A ’Y’ cable

connects two power modules to the unit, providing full redundancy

(see Figure 10).

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Make sure you use the correct type of ’Y’ cable for the right module

combination. See “Power Modules” on page 15 for front views of

the different connectors.

If one of the power modules fails, the other module will take the full

load. The faulty module can be “hot-swapped”, that is, you do not

need to remove power from the chassis before you remove or insert

a power module, to return the system to full redundancy. This

prevents the reset that occurs in the managed redundancy mode.

Refer to the Advanced RPS Type 3 Power Module Installation Guide

and Advanced RPS Type 3 ‘Y’ Cable Installation Guide.

Figure 10

Advanced RPS Full Redundancy Configuration

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