4-Port Gigabit Ethernet Interface Module (GBIC)
Quick Start Guide

For the CoreBuilder® 9000 Enterprise Switch

Interface Module Description

The 4-port Gigabit Ethernet (GEN) Interface Module (GBIC) (Model Number 3CB9LG4) is an interface for gigabit rate data between the CoreBuilder® 9000 Enterprise chassis backplane and other 802.3z-compliant Gigabit Ethernet devices. The module provides four Gigabit Ethernet fiber-optic connections on the front panel, using plug-in Gigabit Interface Converter (GBIC) transceivers.

Key Features

The 4-port Gigabit Ethernet Interface Module (GBIC) supports the following key features:

The module supports the following GBIC transceivers:

Each module has four ports on the front panel. Figure 1 shows the location of the components on the front panel of the Gigabit Ethernet Interface Module.

Figure 1 Front Panel of the 4-port Gigabit Ethernet Interface Module (GBIC)

In the 7-slot chassis, you install the module horizontally with the LEDs at the left. In the 8-slot chassis and 16-slot chassis, you install the module vertically with the LEDs at the top.

Audience Description

This guide is intended for trained technical personnel only. Do not attempt to install, remove, or replace a CoreBuilder 9000 Gigabit Ethernet Interface Module if you have not had the proper training from 3Com. For training information in the United States and Canada, call 1-800-NET-3COM. For training information in other countries, visit the 3Com Web site:

http://www.3com.com

Safety Precautions

When you handle components in a CoreBuilder 9000 system, be sure that you follow all safety precautions. To avoid electric shocks, burns, or equipment damage, read and follow these warnings:

WARNING: Allow only trained service personnel to install, remove, or replace a Gigabit Ethernet Interface Module.

WARNING: Hazardous energy exists within the system. Use extreme caution when you install, remove, or replace any module when the system is on:

Never insert metal objects such as a screwdriver or a finger with jewelry into open module slots.

Do not touch any connections within the chassis with your hands or fingers.

WARNING: To ensure optical safety when installing Gigabit Ethernet Interface Modules, comply with the following precaution:

Although the data communication lasers used in this product meet the regulatory requirements for casual exposure to the eye, as with any source of bright light, it is advised that you do not look into the light source.

Laser Safety Information: IEC 825 and EN60825, Class 1 Laser Device. For connection only to Class 1 Laser Devices.

FDA Class 1 Laser Device

This product complies with U.S. Department of Health and Human Services Rules 21 CFR Subchapter J applicable at date of manufacture.

ESD Safety Information

Electrostatic discharge (ESD) can damage components of the module. ESD, which occurs when a Gigabit Ethernet Interface Module is improperly handled, can cause complete or intermittent failures.

CAUTION: To prevent ESD-related damage:

Handling Precautions

When you handle a Gigabit Ethernet Interface Module, follow these precautions:

Unpacking Instructions

Use the following procedure when you unpack a Gigabit Ethernet Interface Module:

1 .   Verify that the Gigabit Ethernet Interface Module is the correct model by matching the 3C number that is listed on the shipping box label to the 3C number that is listed on your order documentation (3CB9LG4).

2 .   Remove the module, in its antistatic bag, from the shipping box.

3 .   Remove the module from its antistatic bag and inspect it for physical damage.

CAUTION: Handle the module by the front panel only. Do not touch any components, pins, leads, or solder connections.

If the module appears to be damaged, replace it in its antistatic bag and shipping box, and contact your network supplier.

4 .   Ensure that the box also contains:

If the listed contents are not in the shipping box, contact your network supplier.

All shipping boxes are reusable. After you remove the contents, replace the packing materials in the box and store it for future use.

Installation Prerequisites

Before you install your 4-port Gigabit Ethernet Interface Module (GBIC), comply with the following prerequisites:

Module Placement in the Chassis

Note the following chassis slot restrictions and recommendations when you choose a chassis slot for a Gigabit Ethernet Interface Module:

Table 1, Table 2, and Table 3 list the relationship between switch fabric modules and the interface module slots in the 7-slot chassis, the 8-slot chassis, and the 16-slot chassis, respectively. Use the information to help select a slot for your module, as well as for administration purposes after you have completed the installation.

Table 1 Mapping the 24-Port Series GEN Switch Fabric Module (SFM) and GEN Interface Module to the 7-slot Chassis

Chassis Slot No.

Number of SFM Backplane Ports Allocated to Slot

Gigabit Ethernet Interface Module Port Numbers

SFM Backplane Port Numbers Assigned to Chassis Slot

SFM LED Numbers Assigned to Backplane Port Numbers

1

4

1

2

3

4

1

2

3

4

1

2

13

14

2

4

1

2

3

4

5

6

7

8

3

4

15

16

3

4

1

2

3

4

9

10

11

12

5

6

17

18

4

4

1

2

3

4

13

14

15

16

7

8

19

20

5

4

1

2

3

4

17

18

19

20

9

10

21

22

6

4

1

2

3

4

21

22

23

24

11

12

23

24

7

Not applicable. Switch fabric module slot only.

Table 2 Mapping the 24-Port Series GEN Switch Fabric Module (SFM) and GEN Interface Module to the 8-slot Chassis

Chassis Slot No.

Number of SFM Backplane Ports Allocated to Slot

Gigabit Ethernet Interface Module Port Numbers

SFM Backplane Port Numbers Assigned to Chassis Slot

SFM LED Numbers Assigned to Backplane Port Numbers

1

4

1

2

3

4

1

2

3

4

1

2

13

14

2

4

1

2

3

4

5

6

7

8

3

4

15

16

3

4

1

2

3

4

9

10

11

12

5

6

17

18

4

4

1

2

3

4

13

14

15

16

7

8

19

20

5

4

1

2

3

4

17

18

19

20

9

10

21

22

6

4

1

2

3

4

21

22

23

24

11

12

23

24

7

Not applicable. Switch fabric module slot only.

8

Not applicable. Switch fabric module slot only.

Table 3 Mapping the 24-Port Series GEN Switch Fabric Module (SFM) and GEN Interface Module to the 16-slot Chassis

Chassis Slot No.

Number of SFM Backplane Ports Allocated to Slot

Gigabit Ethernet Interface Module Port Numbers

SFM Backplane Port Numbers Assigned to Chassis Slot

SFM LED Numbers Assigned to Backplane Port Numbers

1

2

1

2

1

2

1

2

2

2

1

2

3

4

3

4

3

2

1

2

5

6

5

6

4

2

1

2

7

8

7

8

5

2

1

2

9

10

9

10

6

2

1

2

11

12

11

12

7

2

1

2

13

14

13

14

8

Reserved for an SFM

Not applicable

Not applicable

Not applicable

9

Reserved for an SFM

Not applicable

Not applicable

Not applicable

10

2

1

2

15

16

15

16

11

2

1

2

17

18

17

18

12

2

1

2

19

20

19

20

13

1

1

21

21

14

1

1

22

22

15

1

1

23

23

16

1

1

24

24

Installing the
Gigabit Ethernet Interface Module

Follow this procedure to install a Gigabit Ethernet Interface Module:

1 .   Before you start the installation process, read "Safety Precautions" and "Handling Precautions" earlier in this guide.

2 .   Select a chassis slot for your module, following the restrictions and recommendations in "Module Placement in the Chassis" earlier in this guide.

3 .   To expose the selected chassis slot, remove the blank faceplate that covers the slot.

Save this faceplate in case you need to cover an empty slot in the future. Empty slots must always be covered to ensure proper air flow and cooling in the chassis.

3Com recommends that you install only one module at a time and that you remove the faceplate only for the slot where you intend to install the module. Having either a module or a faceplate on each side of the module that you are installing helps ensure that the spring-loaded screws on the module align properly with the holes in the chassis.

4 .   Open the module ejector handles.

5 .   Begin to insert the module:

Figure 2 Installing the Gigabit Ethernet Interface Module in the 7-slot Chassis

Figure 3 Installing the Gigabit Ethernet Interface Module in the 8-slot Chassis

6 .   Install the module into the chassis using both hands.

a .   Push firmly at the two ends of the front panel near the ejector handles until you feel the module connectors make firm contact with the backplane connectors.

b .   Put your left thumb on the left or top ejector handle and your right thumb on the right or bottom ejector handle. Simultaneously push the ejector handles in toward the front panel until each handle is parallel with the front panel.

You feel a slight resistance as the connectors fully engage.

CAUTION: If the resistance is too great, the module may not be installed correctly. Forcing the module into place can damage the module connectors and backplane connectors. If necessary, remove and reinsert the module. Do not tighten the spring-loaded screws to seat the module.

7 .   To secure the module front panel in the chassis, tighten the spring-loaded screws at each end of the front panel to a torque specification of 3-5 inch-pounds.

CAUTION: To prevent damage to the module or to the chassis, make sure that the screws are centered (aligned) with the holes in the chassis before you tighten them.

If the slot to the right (in an 8-slot chassis or 16-slot chassis) or top (in a 7-slot chassis) of the module does not have a faceplate or a module installed, gently push the module to the left (in the 8-slot chassis or 16-slot chassis) or downward (in the 7-slot chassis) to compress the electromagnetic shielding gasket and properly align the screws with the holes in the chassis.

WARNING: To ensure adequate cooling air flow and continued product safety agency compliance, install blank faceplates over all empty slots.

Verifying Module Operation

The Gigabit Ethernet Interface Module has one Module Status LED and four Port Status LEDs. Watch the LEDs during system power-on to verify proper module operation. During the power-on diagnostic test, both the Module Status and Port Status LEDs flash for approximately 1 second, and then reflect the active status of the module as described in Table 4.

Table 4 Module and Port Status LED Indicators

LED

State and Color

Description

Module Status

Green

Power is on (normal operation).

Yellow

Module error.

Off

No power.

Port Status

Green

Port is enabled and link is up.

Flashing Green

Port is receiving or transmitting packets.

Yellow

Port is cabled, but the switch fabric module is down or unavailable.

Off

Link is disabled or port is not cabled.

GBIC Transceivers

This section describes how to install Gigabit Interface Converter (GBIC) transceivers in the front ports of the Gigabit Ethernet Interface Module.

Do not install GBICs until after the Gigabit Ethernet Interface Module is installed and has powered on successfully. (See "Verifying Module Operation" in the previous section.)

The GBIC ports on your system connect to Gigabit Ethernet networks through a GBIC transceiver (Figure 4), which provides a high-speed connection over fiber-optic cable. The transceiver connects to the network using a duplex SC fiber-optic connector. You can remove and replace the transceiver while the system is on.

Figure 4 Example of a GBIC Fiber-optic Transceiver

To ensure optimal performance, compatibility, and regulatory compliance, use only GBIC transceivers that 3Com supports. For a list of currently supported GBICs, see this 3Com Web site:

http://www.3com.com/gigabit_ethernet/gbics

1000BASE-SX GBIC Transceivers

The 1000BASE-SX transceiver supports a direct connection to 62.5-micron or 50-micron multimode fiber-optic cable.

Table 5 lists the transmission ranges for each connection.

Table 5 1000BASE-SX GBIC Multimode Transmission Ranges

Fiber Type

Diameter (microns)

Modal Bandwidth (MHz*km)

Transmission Range in meters (feet)

Multimode

62.5

160

2 - 220 (6.6 - 721.8)

Multimode

62.5

200

2 - 275 (6.6 - 902.3)

Multimode

50

400

2 - 500 (6.6 - 1640.5)

Multimode

50

500

2 to 550 (6.6 to 1804.6)

1000BASE-LX GBIC Transceivers

The 1000BASE-LX transceiver supports these connections:

http://www.3com.com/gigabit_ethernet/gbics

Table 6 lists the transmission ranges for each connection.

Table 6 100BASE-LX GBIC Multimode and Single-mode Transmission Ranges

Fiber Type

Diameter (microns)

Modal Bandwidth (MHz*km)

Transmission Range in meters (feet)

Multimode

62.5

500

2 - 550 (6.6 - 1804.6)

Multimode

50

400

2 - 550 (6.6 - 1804.6)

Multimode

50

500

2 - 550 (6.6 - 1804.6)

Single-mode

9

-

2 - 10,000 (6.6 - 32,810)

Safety Precautions

Be sure to follow all safety precautions when you replace a 1000BASE GBIC transceiver in the module. To avoid electric shocks and burns to yourself and damage to the equipment, read and follow this warning:

WARNING: When the system is on, never insert a metal object such as a screwdriver or a finger with jewelry into open GBIC slots.

Fiber-optic Safety Precautions

The GBIC ports on your system use lasers. To ensure your safety when you install or work with these GBIC systems, read and comply with the precautions in this section.

WARNING: The fiber-optic lasers that are used in 3Com GBIC ports meet the regulatory requirements for casual exposure to the eye. As with any source of bright light, however, 3Com recommends that you do not look into the laser light source.

IEC 825, Class 1 Laser Devices are for connection only to Class 1 Laser Devices. Multimode and single-mode fiber-optic interfaces use lasers.

Inserting the Transceiver

Before you connect the system to the Gigabit Ethernet network, first insert the transceiver into the GBIC port on the module:

1 .   Orient the transceiver so that the duplex SC connector is toward you (Figure 5).

Figure 5 Inserting the GBIC Transceiver

2 .   Compress the side tabs and gently slide the transceiver into the GBIC port until it clicks into place.

CAUTION: The transceiver is keyed so that you can only install it one way. If you insert the transceiver and it does not slide in all the way, do not try to force it into place. Remove the transceiver, turn it over, and then reinsert it into the module.

Removing the Transceiver

If you need to replace a GBIC transceiver, remove the old one by compressing the side tabs and gently pull the transceiver out of the port.

Troubleshooting GBICs

After you insert the GBIC transceiver into the port, the system software verifies whether the transceiver is working properly.

To ensure optimal performance, compatibility, and regulatory compliance, use only GBIC transceivers that 3Com supports. For a list of currently supported GBICs, see this 3Com Web site:

http://www.3com.com/gigabit_ethernet/gbics

If the transceiver is not working properly, an error message is displayed on the EME Console, as described in the following sections.

Unqualified GBIC Error

If the system detects that there is an unqualified GBIC installed or there is a problem with the integrity of the GBIC, it sets the port type to Unqualified GBIC, displays a short description at the EME Console (Uqual.GBIC), and captures the error in the event log.

WARNING
The GBIC in Port xx is NOT approved by 3Com & may violate electromagnetic emission or safety requirements for your country. Refer to 3Com's web page (www.3com.com/gigabit_ethernet/gbics) for our current approved list.

The following informational messages are shown in the event log:

Corrective Action

To correct this problem, completely remove the transceiver and then reinsert it. If the problem persists, contact 3Com Technical Support. For contact information, see the Technical Support appendix in the CoreBuilder 9000 Enterprise Switch Getting Started Guide.

Corrective Action

Although this condition does not necessarily indicate that the GBIC transceiver will not function in the system, replace the transceiver to ensure proper operation.

Corrective Action

Replace this transceiver with a 3Com qualified GBIC.

GBIC Disable Error

If the system detects that the transceiver cannot emit the proper laser signal, it sets the port type to disabled, displays a short description at the EME console (GBIC Disable), and captures the error in the event log.

The following informational message is shown in the event log:

Corrective Action

Replace the transceiver with another one. If the problem persists, contact 3Com Technical Support. For contact information, see the Technical Support appendix in the CoreBuilder 9000 Enterprise Switch Getting Started Guide.

Unapproved GBIC Error

Supported transceivers are those that 3Com has specifically tested and qualified for use with 3Com GBIC systems. Pretesting at 3Com ensures proper functionality and compatibility with the system.

If the system detects a transceiver that 3Com does not support, it sets the port type to Unqualified GBIC, displays a short description at the EME console (Unappr.GBIC), and captures the error in the event log.

WARNING
The GBIC in Port xx is NOT approved by 3Com & may violate electromagnetic emission or safety requirements for your country. Refer to 3Com's web page (www.3com.com/gigabit_ethernet/gbics) for our current approved list.

The following informational message is shown in the event log:

Corrective Action

Although this report does not necessarily indicate that the GBIC transceiver will not function properly with the system, it does indicate that 3Com has not qualified the transceiver and does not support it.

Managing the Module

You can access and manage your Gigabit Ethernet Interface Module using several methods:

The Administration Console and most of Web Management are embedded parts of the software and are available for immediate use to manage your module.

Administration Console Access

You can configure and manage the front panel ports on the Gigabit Ethernet Interface Module using the Administration Console, which is a command line interface that you access from a terminal that is connected through the Enterprise Management Engine (EME).

At the Administration Console command prompt, you do not connect directly to the Gigabit Ethernet Interface Module; you manage the module by connecting to the primary GEN Switch Fabric Module backplane ports that correspond to where you have installed the Gigabit Ethernet Interface Module in the chassis. To learn how GEN Switch Fabric Module backplane ports are assigned to chassis slots, see Table 1, Table 2, and Table 3 earlier in this guide.

To manage Gigabit Ethernet Interface Module ports from the Administration Console:

1 .   Log in to the EME.

For information about logging in to the EME, see the CoreBuilder 9000 Enterprise Management Engine User Guide.

2 .   At the prompt, enter:

connect <slot>.1

Where <slot> is the slot number of the module that you want to manage, and the number after the decimal point is a subslot number (which is always 1).

Because you manage the Gigabit Ethernet Interface Module through the GEN Switch Fabric Module, you always connect to slot 7 in the CoreBuilder 9000 7-slot chassis, slot 7 or slot 8 (if a redundant switch fabric module is installed) in the CoreBuilder 9000 8-slot chassis, and to slot 8 or slot 9 (if a redundant switch fabric module is installed) in the CoreBuilder 9000 16-slot chassis.

This command connects you to the primary GEN Switch Fabric Module, and the Administration Console displays the top-level menu prompt.

3 .   To manage a Gigabit Ethernet Interface Module port, enter commands for the corresponding backplane port on the primary GEN Switch Fabric Module.

For information about Administration Console module commands, see the Command Reference Guide.

Web Management Access

Web Management applications are an embedded part of the CoreBuilder 9000 system software image. They include WebConsole, DeviceView, and Performance monitoring tools. Also available is a Help system. After you have set up the IP address for your CoreBuilder 9000 system, you can access the Web Management applications directly by entering its IP address in your Web browser.

See the Web Management User Guide for the CoreBuilder 9000 Enterprise Switch for additional information about Web Management.

Specifications

The following tables list specifications for the Gigabit Ethernet Interface Module (3CB9LG4):

Environmental Requirements

Operating temperature

0 to 50 ºC (32 to 122 ºF)

Operating humidity

10% to 90% relative humidity, noncondensing

Storage temperature

-30 to 70 ºC (-22 to 158 ºF)

Storage humidity

10% to 95% relative humidity, noncondensing

Physical Specifications

Dimensions

Weight

25.4 mm x 340.36 mm x 388.112 mm
(1 in. x 13.4 in. x 15.28 in.)

1.04 kg
(2.3 lb)

Power Specifications

Voltage

Wattage

+5.2 V

5 W

+3.5 V

10 W

+12 V

3 W

Total Wattage = 18 W

Regulatory Compliance

Safety

Emissions

Related CoreBuilder 9000 Documents

For detailed information about using and managing your GEN Interface Module, see the following documents:

To obtain the software code installation procedure as well as known problem information for your GEN Interface Module, see the CoreBuilder 9000 Release Notes for Gigabit Ethernet (GEN) Switch Fabric Modules and GEN Interface Modules.

For information about installing and powering on the system, see the following documents:

You can view and print these and other CoreBuilder 9000 documents from the:

This is a Class A product based on the standard of the Voluntary Control Council for Interference by Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may arise. When such trouble occurs, the user may be required to take corrective actions.

EMC Directive Statement

EMC Directive Compliance

This equipment was tested and found to conform to the Council Directive 89/336/EEC for electromagnetic compatibility. Conformity with this Directive is based upon compliance with the following harmonized standards:

EN 55022

Limits and Methods of Measurement of Radio Interference

EN 50082-1

Electromagnetic Compatibility Generic Immunity Standard:

Residential, Commercial, and Light Industry

Warning: This is a Class A product. In a domestic environment, this product may cause radio interference, in which case you may be required to take adequate measures.

Low Voltage Directive Statement

Low Voltage Directive Compliance

This equipment was tested and found to conform to the Council Directive 72/23/EEC for safety of electrical equipment. Conformity with this Directive is based upon compliance with the following harmonized standard:

EN 60950

Safety of Information Technology Equipment

General Approval Statement for UK

UK General Approval Statement

This equipment is manufactured to the international Safety Standard EN60950 and is approved in the UK under the General Approval Number NS/G/12345/J/100003 for indirect connection to the public telecommunication network.

Australian EMC Frameworks Statement

Australian EMC Frameworks Compliance

This product conforms to the EMC Frameworks and meets the Class A limits of AS3548.

3Com Corporation
5400 Bayfront Plaza
Santa Clara, California
95052-8145

Copyright © 1999, 3Com Corporation. All rights reserved. No part of this 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 Corporation. 3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.

3Com Corporation 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, satisfactory quality, and fitness for a particular purpose. 3Com may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time.

3Com registered trademarks are registered in the United States and may or may not be registered in other countries. 3Com, the 3Com logo, and CoreBuilder are registered trademarks of 3Com Corporation.

All other company and product names may be trademarks of the respective companies with which they are associated.

http://www.3com.com/

Part No. 10012686
Published August 1999