Smc 9712G INSTALLATION GUIDE

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TigerChassis 10/100/1000

14-Slot Multilayer Chassis Switch

◆ IP routing with RIP and OSPF support

◆ Optional blades include 10BASE-T/100BASE-TX, 100BASE-FX, 1000BASE-SX/LX, 10/

100/1000BASE-T, GBIC

◆ 12 slots available for media expansion

◆ 24 Gbps switch fabric for non-blocking switching performance

◆ Security features to prevent intruder access and ensure a safe network

environment

◆ Full support for IEEE 802.1Q VLANs with GVRP

◆ QoS support for IEEE 802.1p priority

◆ IGMP and DVMRP multicast support

◆ Optional redundant power, fan, and switch fabric failover support

◆ Manageable via console, web, SNMP/RMON

◆ Supports CIDR, multinetting

Installation and Maintenance Guide

SMC9712G

TigerChassis 10/100/1000 Installation and Maintenance Guide

From SMC’s Chassis line of feature-rich workgroup LAN solutions

38 Tesla Irvine, CA 92618 Phone: (949) 679-8000

January 2002

Pub. # 150200008900A R01

Information furnished by SMC Networks, Inc. (SMC) is believed to be accurate and reliable. However, no responsibility is assumed by SMC for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SMC. SMC reserves the right to change specifications at any time without notice.

SMC Networks, Inc.

38 Tesla

Irvine, CA 92618

Trademarks:

SMC is a registered trademark; and TigerChassis is a trademark of SMC Networks, Inc. Other product and company names are trademarks or registered trademarks of their respective holders.

IMITED

Limited Warranty Statement: SMC Networks, Inc. (“SMC”) warrants its products to be free from defects in workmanship and materials, under normal use and service, for the applicable warranty term. All SMC products carry a standard 90-day limited warranty from the date of purchase from SMC or its Authorized Reseller. SMC may, at its own discretion, repair or replace any product not operating as warranted with a similar or functionally equivalent product, during the applicable warranty term. SMC will endeavor to repair or replace any product returned under warranty within 30 days of receipt of the product.

The standard limited warranty can be upgraded to a Limited Lifetime* warranty by registering new products within 30 days of purchase from SMC or its Authorized Reseller. Registration can be accomplished via the enclosed product registration card or online via the SMC web site. Failure to register will not affect the standard limited warranty. The Limited Lifetime warranty covers a product during the Life of that Product, which is defined as the period of time during which the product is an “Active” SMC product. A product is considered to be “Active” while it is listed on the current SMC price list. As new technologies emerge, older technologies become obsolete and SMC will, at its discretion, replace an older product in its product line with one that incorporates these newer technologies. At that point, the obsolete product is discontinued and is no longer an “Active” SMC product. A list of discontinued products with their respective dates of discontinuance can be found at:

http://www.smc.com/index.cfm?action=customer_service_warranty.

All products that are replaced become the property of SMC. Replacement products may be either new or reconditioned. Any replaced or repaired product carries either a 30-day limited warranty or the remainder of the initial warranty, whichever is longer. SMC is not responsible for any custom software or firmware, configuration information, or memory data of Customer contained in, stored on, or integrated with any products returned to SMC pursuant to any warranty. Products returned to SMC should have any customer-installed accessory or add-on components, such as expansion modules, removed prior to returning the product for replacement. SMC is not responsible for these items if they are returned with the product.

Customers must contact SMC for a Return Material Authorization number prior to returning any product to SMC. Proof of purchase may be required. Any product returned to SMC without a valid Return Material Authorization (RMA) number clearly marked on the outside of the package will be returned to customers at customer’s expense. For warranty claims within North America, please call our toll-free customer support number at (800) 762-4968. Customers are responsible for all shipping charges from their facility to SMC. SMC is responsible for return shipping charges from SMC to customer.

WARRANTIES EXCLUSIVE: IF AN SMC PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER’S SOLE REMEDY SHALL BE REPAIR OR REPLACEMENT OF THE PRODUCT IN QUESTION, AT SMC’S OPTION. THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE, INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. SMC NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE OR USE OF ITS PRODUCTS. SMC SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THE ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER’S OR ANY THIRD PERSON’S MISUSE, NEGLECT, IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO REPAIR, OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING, OR OTHER HAZARD.

LIMITATION OF LIABILITY: IN NO EVENT, WHETHER BASED IN CONTRACT OR TORT (INCLUDING NEGLIGENCE), SHALL SMC BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE, LOSS OF BUSINESS, OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR INTERRUPTION OF ITS PRODUCTS, EVEN IF SMC OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

SOME STATES DO NOT ALLOW THE EXCLUSION OF IMPLIED WARRANTIES OR THE LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR CONSUMER PRODUCTS, SO THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE TO STATE. NOTHING IN THIS WARRANTY SHALL BE TAKEN TO AFFECT YOUR STATUTORY RIGHTS.

* SMC will provide warranty service for one year following discontinuance from the active SMC price list. Under the limited lifetime warranty, internal and external power supplies, fans, and cables are covered by a standard one-year warranty from date of purchase.

ARRANTY

SMC Networks, Inc.

38 Tesla

Irvine, CA 92618

IMITED WARRANTY

CONTENTS

ABOUT THIS GUIDE

Audience Definition 11

Conventions 11

ABOUT THIS GUIDE

This SMC9712G Installation and Maintenance Guide provides a description of SMC9712G components, installation and removal procedures, site requirements, and important safety information for SMC9712G components.

Audience Definition This guide is intended for network administrators who are responsible for

installing and managing the network hardware and who are considered to be trained service personnel. This guide assumes that the network administrator has a working knowledge of local area network (LAN) operations, but it does not assume prior knowledge of SMC9712G high performance networking equipment. Furthermore, this guide assumes that the network administrator has obtained the appropriate technical training and experience to perform tasks in service access areas of network equipment, to be aware of electrical hazards or other hazards that exist in performing these tasks, and to take steps that minimize the danger to themselves or other persons.

Conventions Table 1 and Table 2 list conventions that are used throughout this guide.

Table 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 potential

damage to an application, system, or device

Warning Information that alerts you to potential personal injury

Table 2 Text Conventions

Convention Description

Words in italics Italics are used to:

■ Emphasize a point.

■ Denote a new term at the place where it is defined in the text.

12 ABOUT THIS GUIDE

SETTING UP YOUR SMC9712G

To install your SMC9712G safely and efficiently so that you can connect it to your network, follow these tasks:

1 Read Chapter 2 in this guide for a quick review of basic facts about the Switch.

2 Ensure that your installation environment meets the site requirements described in

Chapter 3.

3 Unpack and inspect the SMC9712G components for visible damage, if you have

not already done so.

For unpacking procedures and information on how to proceed if damage exists, see the SMC9712G Key Information Guide.

See Chapter 5 for the installation procedure.

4 Install the chassis.

5 (Optional) Install a second power supply (for redundancy) into the chassis before

you install it on a table, shelf, or in a rack.

See Chapter 4 for the installation procedure.

SMC recommends that you do not connect the SMC9712G to a power source until all components are installed. This way, you can focus your attention on all module LEDs simultaneously.

6 (If required) Install Fast Ethernet and Gigabit Ethernet Interface Modules.

If you need to install additional modules, see Chapter 7 for the information about their physical attributes and module installation procedure.

All chassis ship from the manufacturing center with a Network Management Module (NMM) preinstalled, thus you do not have to install one. However, you can install a second (redundant) NMM to provide standby management support.

At your option, you may connect network cabling to your SMC9712G interface modules prior to powering on the Switch. However, once the Switch is powered on, be aware that features such as the Spanning Tree Protocol’s root bridge election process may affect your network operations. If you are unfamiliar with the SMC9712G, SMC recommends that you power up the Switch without cabling attached so that you can first spend a few minutes studying the management interface.

7 Power on the system by connecting the power cables to the sockets on the

SMC9712G power supplies and then to the dedicated power outlets.

There is no ON/OFF button on the SMC9712G. The system is powered on as long as the mains power source is connected to the Switch. If you need to cycle power to the SMC9712G, you can either unplug and replug the power cord, or you can do it through a command on the SMC9712G management interface.

14 CHAPTER 1: SETTING UP YOUR SMC9712G

If you installed a second, redundant power supply, SMC recommends that you connect it to a dedicated power source.

After power is supplied to the SMC9712G, power supplies begin operating, fans start rotating, all modules begin power-on verification processes and self-diagnostic processes, and the NMM begins its software boot cycle. The module LEDs will flash in different colors and sequences during this time.

8 Wait for the chassis to finish its start-up sequence of diagnostic tests.

This could take up to five minutes (approximately).

For information about module LEDs, see Table 5, Table 6, Table 11, and Table 13 in Chapter 7.

The SMC9712G is not ready for operation until its initialization processes finish. This process may last up to 5 minutes.

If no problems exist at the completion of the module initialization process, you should see the following:

■ All four fans are rotating continuously.

■ The AC and DC LEDs on each installed power supply are lighted.

■ The Power LED on the NMM module is Green.

■ The Diagnostic LED on all modules is Green.

■ The Port Link and Mode LEDs on all interface modules remain off until you

attach cabling and functioning network links are created.

If a Module Diagnostic LED is off after the diagnostics run, that module has failed.

If you observe error conditions with the following hardware components, see the referenced chapter:

■ power supplies, see “Troubleshooting a Power Supply” in Chapter 5.

■ fans, see “Troubleshooting a Fan Tray” in Chapter 6.

■ modules, see“Troubleshooting Modules” in Chapter 7.

9 To view or modify the default software configuration, use a standard null modem

cable to connect a terminal or PC with terminal emulation software (such as

HyperTerm that is included with Windows

) to the console port on the NMM.

At this point, the menu-driven command line interface (CLI) that is built into the software becomes visible to you.

See the SMC9712G Software Configuration Guide to view or modify the default settings in the software as well as to learn about other management interface options.

10 When you are ready to join the SMC9712G to the rest of your network, attach

GBIC transceivers (if applicable) and network cabling to the ports on the interface modules.

OVERVIEW OF THE SMC9712G

This chapter provides an introduction to the design of the SMC9712G. The topics in this chapter include:

■ Product Overview

■ Switch Backplane Architecture

Product Overview The SMC9712G is a feature-rich, 14-slot, modular routing switch that can be

configured with up to 24 Gigabit Ethernet ports or up to 96 Fast Ethernet ports with currently available modules. The SMC9712G currently supports redundant power supplies, redundant Network Management Modules, and a variety of Fast Ethernet and Gigabit Ethernet Interface Modules. Combining the speed and low cost of a Layer 2 switch with Layer 3 routing capabilities, the SMC9712G currently routes the IP protocol and offers many other advanced features to provide the high performance that you need to aggregate wiring closets in your network.

Physical Description A SMC9712G chassis can contain:

■ Two fa n tray s.

Each fan tray contains two fans (four fans total). Both fan trays are required for normal operation.

■ Two 300 Watt AC power supplies

Only one power supply is required for normal operation. If installed, a second power supply provides load-sharing and redundancy.

■ Two Network Management Modules (NMMs)

Only one NMM is required for normal operation. If the NMM is removed from a powered up chassis that is functioning in a network, chassis operations will cease. However, if a backup NMM is installed in the chassis, and the primary NMM is removed or fails, the backup NMM will take over operations.

The NMM has two elements: a central Network, which manages the layer 3 routing functions of the system such as routing table updates and layer 3 configuration changes, and the management of the system, which includes SNMP, command line interface (CLI), and Web client activities.

■ Up to Twelve Fast Ethernet or Gigabit Ethernet Interface Modules

You install the number and type of interface modules that are appropriate to your cabling infrastructure and bandwidth requirements. When the source and destination ports are located on the same interface module, the interface module performs local switching. If the destination port resides on a different interface module, the interface module forwards the packet to the NMM.

16 CHAPTER 2: OVERVIEW OF THE SMC9712G

Minimum Requirements

for Normal Operation

Module Slots in the

Chassis

The following minimum components are required for normal operation of the SMC9712G:

■ Two fan trays (four fans total)

■ One 300 Watt AC power supply

■ One Network Management Module (NMM) operating with system software

■ The number and type of interface modules that are appropriate for your

network connectivity needs

■ Blank faceplates that cover all empty module slots and the second power

supply bay (if a second power supply is not installed).

You insert modules vertically into the chassis slots so that the slot number shows through a hole in the module faceplate. As shown in Figure 1, the slots for interface modules are numbered from left to right, starting with number 1 and continuing to 12. The two center slots are numbered M1 and M2 because they exist solely to contain Network Management Modules (NMMs). An NMM can be placed in either of these slots.

Figure 1 Front View of a SMC9712G Chassis Without Interface Modules Installed

Interface

module slots

Management

module slots

Powe r supply

(in slot 1)

Powe r supply

slot 2

Product Overview 17

Figure 2 shows the rear view of a standard SMC9712G chassis in the minimum configuration.

Figure 2 Rear View of a standard SMC9712G Chassis

Fan tray

(in slot 1)

Fan tray

(in slot 2)

Building a System You can build a complete system from component items that are ordered

separately.

Servicing a System For service spares purposes, all component items such as fan trays, power supplies,

and modules can be purchased separately at any time. Check with your network supplier to see if they stock spare components, provide service, or resell SMC service agreements.

18 CHAPTER 2: OVERVIEW OF THE SMC9712G

Switch Backplane Architecture

Gigabit Data Traces

UART Control Traces

A star-wired scheme of traces inside the chassis, which is called the backplane, is used to connect each interface module slot to the Network Management Module (NMM) slots. A module, fan tray, or power supply connects to the backplane when it is inserted into a slot and its connectors engage the connectors that are inside the chassis.

As shown in Figure 3, the SMC9712G backplane design offers:

■ 12 Gbps of non-blocking bandwidth capacity

■ Passive design, meaning that there are no active components that can fail

■ Support for dual, redundant Network Management Modules (NMMs)

■ Support for system communication between the NMM and interface modules

for control signals, detection, and other management activities.

Figure 3 Backplane Architecture of the SMC9712G

Swithc Fabric & Management Slot M1

Swithc Fabric & Management Slot M2

SCI

Interface Slot 1

Interface Slot 2

Interface Slot 3

Interface Slot 4

Interface Slot 5

Interface Slot 6

Interface Slot 7

Interface Slot 8

Interface Slot 9

Interface Slot 10

Interface Slot 11

Interface Slot 12

The backplane connector on each module provides easy access to all the services from the SMC9712G backplane:

■ a data channel for network traffic between the NMM and interface modules

■ a control channel that passes signals for module detection

■ module diagnostics

■ LED operation between the NMM and interface modules

■ a Serial Communication Interface (SCI) communications channel that operates

between two NMMs (if installed) to keep their configurations synchronized

Traffic between ports on the same interface module does not enter the backplane; that is, the interface modules provide layer 2 and layer 3 switching when the packet’s destination is a locally attached node. Interface modules send packets that have non-local destination addresses across the backplane to the NMM which then switches the packets to the appropriate interface module.

SITE REQUIREMENTS AND PRODUCT

PECIFICATIONS

This chapter describes the site requirements and product specifications for your SMC9712G. The major sections are titled as follows:

■ Physical Specifications

■ Environmental Specifications

■ Ventilation Requirements

■ Location Requirements

■ Power Requirements

■ Safety Information

■ Regulatory Compliance

Physical Specifications The physical specifications for the SMC9712G chassis are shown in Table 1.

Tabl e 1 Chassis Physical Specifications

Height

Width

Depth

Weight

Mounting

Network Interfaces

Management Access Ports

31.06 cm 12.22 inches (5 Rack Units)

48.3 cm

43.94 cm

29.77 cm 11.72 inches

12.42 kg

20.62 kg

Tabletop, shelf, or standard 19-inch rack

10/100BASE-TX, 100BASE-FX, 1000BASE-SX, 1000BASE-T, GBIC

Any Ethernet port on the interface modules

RS-232 (DB-9) serial port on the Network Management Module

19 inches (including rack-mount flanges)

17.3 inches (not including rack-mount flanges)

27.38 pounds (chassis, backplane, power supply, fans)

45.46 pounds (fully loaded)

20 CHAPTER 3: SITE REQUIREMENTS AND PRODUCT SPECIFICATIONS

Environmental Specifications

Ventilation Requirements

The site for the SMC9712G should meet the environmental requirements shown in Tab le 2:

Tab le 2 Environmental Specifications

Operating temperature

Operating humidity 10% to 90%, noncondensing

Storage temperature -40 °C to 66 °C

Storage humidity 10% to 90%, noncondensing

Switch operating temperature is the temperature of the environment in which the switch is installed.

Ambient air is room air (more specifically, the air drawn into the switch by installed fans to cool

installed switch components).

0 °C to 50 °C ambient (32 °F to 122 °F)

(-40 °F to 151 °F)

The chassis operates with two fan trays. Each fan tray contains two fans. These fans pull ambient air into the chassis from vents in the module faceplates and expel hot air through vents in the back of the fan tray.

Although the fan trays provide the majority of the cooling, the power supplies also contain fans. Each power supply pulls in ambient air through side vents in the adjacent chassis wall and expels hot air through its vents in the back.

If a power supply overheats, it shuts itself off.

Location Requirements

To ensure that adequate ventilation exists for the SMC9712G:

■ Maintain at least 7 cm (2.76 in.) between the sides of the chassis and the

nearest wall or other vertical surface.

■ Maintain at least 8 cm (3 in.) between the front of the chassis and another

vertical surface (such as a rack door).

■ Maintain at least 91.4 cm (36 in.) at the back of the chassis.

CAUTION: Operate a SMC9712G chassis with all four fans running. If one fan in a fan tray fails, replace the fan tray as soon as possible.

Install the SMC9712G in an area that meets the following location requirements:

■ The surface on which you want to place the SMC9712G chassis is level.

■ The power source is within approximately 2 meters (6.6 feet) of the location

where you plan to install the SMC9712G.

■ Each of the power supplies is connected to its own dedicated circuit. Do not

connect the power supplies to a single power strip.

■ There is a sufficient amount of space on each side of the SMC9712G chassis to

accommodate any cables along the side of the chassis.

■ There is at least 91.4 cm (36 in.) at the back of the chassis to service power

supplies and fans.

■ If the chassis is the first device in your rack, then mount it about 10.2 cm (4 in.)

above the floor.

Location Requirements 21

■ The following list shows the amount of rack space that is needed to install a

SMC9712G chassis in a Telco rack or a Metric rack:

■ Height — 31.06 cm / 12.15 in.

The height of the chassis, allowing for some extension beyond the location

of the upper and lower unit dividing lines.

■ Telco Rack Unit — 7.2 RU

The unit of measure is 1 Rack Unit (1.75 in. or 4.45 cm).

■ Metric Rack Unit — 14.4 SU

The unit of measure is 1 System Unit (25 millimeters).

■ Front clearance — 8 cm / 3 in.

This is the recommended minimum space required between the front of the

chassis and another vertical surface (such as a rack door). Your cabling may

require that you leave the rack door open.

Precautionary

Guidelines

■ Safety regulations stipulate that the table, shelf, or rack on which the

SMC9712G rests can support at least 61.8 kg (136.5 lb), which is three times the weight of a fully loaded SMC9712G chassis.

■ To reduce the possibility of personal injury or serious damage to the chassis, use

at least two people to install the chassis. This is especially important for rack installations, because you must hold the chassis in place while you secure it to the rack.

■ If you are installing the SMC9712G in a rack, first ensure that the rack is

installed properly according to the manufacturer’s instructions, which may include steps such as:

■ Ground the rack in accordance with the rack manufacturer’s instructions.

■ Bolt the rack to the floor.

■ Make certain that the rack is properly aligned and squared. Use a framing

tool to ensure that the rack is squared.

■ Use the following guidelines to tighten screws to Torque Specification:

■ Module faceplate screws — 1.3 in/lb (inch-pounds)

■ Power supplies and fan trays to the chassis — 1.3 in/lb

■ #10 screws for holding the chassis onto a rack — 22-25 in/lb

To ensure that you tighten screws to Torque Specification, use a torque screwdriver.

22 CHAPTER 3: SITE REQUIREMENTS AND PRODUCT SPECIFICATIONS

Power Requirements This section outlines the power requirements for the SMC9712G 300-watt AC

power supply (Model Number SMC9712P). Table 3 lists power specifications for the chassis.

Tab le 3 SMC9712G Chassis Power Specifications

Total power consumption

Output voltage

Input voltage range

Inrush current

Input frequency

300 watts, 1023 BTU/hour

+5 V @ 53A, +12 V @ 3A

United States — 100 to 120 VAC

International — 200 to 240 VAC

6 A

50-60 Hz

The power supplies are autosensing; that is, a power supply can automatically sense the type of input voltage to which it is being connected at the electrical outlet.

If a power supply overheats, it shuts itself off.

Power Cords One power cord per power supply is required. If you have two power supplies

installed in the chassis, SMC recommends that you connect them to separate, dedicated power outlets. The power cord that you require depends on your country location. The correct power cord should be in your chassis shipping box. If you do not have the correct power cord, contact your supplier.

Safety Information This section lists warning notices to read before you install the SMC9712G and its

components.

WARNING: The SMC9712G chassis and its components must be installed,

maintained, or replaced only by trained service personnel. This guide assumes that the network administrator has a working knowledge of local area network (LAN) operations. Furthermore, this guide assumes that the network administrator has obtained appropriate technical training and experience to perform tasks in service access areas of network equipment, to be aware of electrical hazards that exist in performing these tasks, and to take steps that minimize the danger to themselves or other persons. If you have questions on installation tasks, contact your network supplier or SMC technical support. For contact information, see Appendix A.

WARNING: To maintain proper cooling in the chassis and maintain safety compliance, make certain that blank faceplates cover any empty module slots or power supply slots.

WARNING: Hazardous energy levels exist inside of the Switch. Do not place hands or objects into the switch or touch components on an inserted module.

WARNING: Safety regulations state that the selected table, shelf, or rack must be able to support at least three times the weight of a fully loaded Switch. A fully loaded SMC9712G chassis weighs approximately 20.6 kg (45.5 lb). Therefore, the selected table or shelf must support at least 61.8 kg (136.5 lb).

Safety Information 23

Laser Warning

The following warning is required when you install fiber-optic communication modules into the SMC9712G:

WARNING: To ensure optical safety when you install a fiber-optic interface module, comply with the following precaution:

Although the data communication LEDs and Lasers used in this product meet the regulatory requirements for casual exposure to the eye, as with any source of bright light, SMC recommends 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.

CLASS 1

LASER PRODUCT

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.

LED Warning

The following warning is required when you install fiber-optic communication modules into the SMC9712G:

WARNING: To ensure optical safety when you install a fiber-optic interface module, comply with the following precaution:

Although the data communication LEDs that are used in this product meet the regulatory requirements for casual exposure to the eye, as with any source of bright light, SMC recommends that you do not look into the light source.

LED Safety Information: IEC 825, Class 1 LED Device. For connection only to Class 1 LED Devices.

CLASS 1

LED PRODUCT

24 CHAPTER 3: SITE REQUIREMENTS AND PRODUCT SPECIFICATIONS

Regulatory Compliance

Table 4 lists the regulatory standards that the SMC9712G complies with.

Regional or country compliance information is also listed in the SMC9712G Key Information Guide, which is included in the shipping box of every item in the product set.

Tab le 4 Regulatory Compliance for the SMC9712G

Safety

Low Voltage Directive

EMC Directive*

*EMC 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 standards: EN55022-Limits and Methods of Measurement of Radio Interference EN50082-1 Electromagnetic Compatibility Generic Immunity Standard: Residential, Commercial, and Light Industry

CSA 22.2 No. 950

UL1950

TUV GS mark

IEC950, CB Certificate

EN60950, with amendments

For products declaring LVD compliance on the Declaration of Conformity

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 safety standard.

Emissions:

■ EMC EN55022

■ EN61000-3, 2

Immunity:

■ EN50082-1

SMC9712G CHASSIS

This chapter describes how to install the SMC9712G chassis. The main sections in this chapter are as follows:

■ Overview

■ Preinstallation Guidelines

■ Installing the Chassis

■ Installing the Cable Management Device

Overview The basic steps that comprise a chassis installation are as follows:

1 Confirm that the installation area (rack, table, or shelf) is ready to receive the

chassis, in terms of the site requirements and safety information provided in Chapter 3.

2 Read the pre installation guidelines, cautions, and warnings in this chapter before

you begin the installation procedure.

3 (Rack installation only) Attach the flanges to the chassis. These are included in the

chassis shipping box.

4 Use at least two people to install the chassis and follow the appropriate

procedures in this chapter.

5 (Optional, rack installation only) Attach the cable management device, which is

included in the chassis shipping box, to the rack.

WARNING: The SMC9712G chassis and its components must be installed, maintained, or replaced only by trained service personnel. This guide assumes that the network administrator has a working knowledge of local area network (LAN) operations. Furthermore, this guide assumes that the network administrator has obtained appropriate technical training and experience to perform tasks in service access areas of network equipment, to be aware of electrical hazards that exist in performing these tasks, and to take steps that minimize the danger to themselves or other persons. If you have questions on installation tasks, contact your network supplier or SMC technical support. See Appendix A for contact information.

WARNING: You can install the SMC9712G chassis on a table or a shelf or into a rack. To minimize the risk of personal injury or equipment damage, SMC recommends that at least two people perform a chassis installation.

26 CHAPTER 4: SMC9712G CHASSIS

Preinstallation Guidelines

Safety Precautions Read this section before you begin to install the SMC9712G chassis.

This section provides safety precautions and various installation guidelines to prepare you to install the SMC9712G chassis in a safe and efficient manner.

WARNING: The installation requires at least two people. Do not attempt to install the chassis alone.

WARNING: The chassis shipping box contents include two rack-mount brackets called flanges, each of which has one stationary flange pin (see Figure 4). After the flanges are attached to the chassis, use the flange pins only to help position the chassis on the rack. Do not use these pins to support the full weight of the chassis.

Figure 4 Rack-Mount Flange Pin and Rack Slots

Metric rack

closed slot

Preinstalled

flange pin

Telco rack

open slot

WARNING: When the SMC9712G chassis is fully loaded with modules, fans and power supplies, the chassis weighs approximately 20.6 kg (45.5 lb). To reduce the weight that you have to lift or support, you may consider installing your chassis before you install additional modules or power supplies.

WARNING: Safety regulations state that the selected table, rack or shelf must be able to support at least 61.8 kg (136.5 lb), which is three times the weight of a fully loaded chassis.

WARNING: If you are installing the chassis in a rack, at least one person should support the weight of the chassis until another person has securely installed it according to the procedures in this chapter. If you release the weight of the chassis before it is secured to the rack, the chassis may drop off the rack. Personal injury or serious damage to the chassis may result.

Preinstallation Guidelines 27

Rack Installation

Guidelines

Review the following guidelines before you install the chassis in a rack to ensure your safety and the optimal performance of the SMC9712G:

WARNING: To ensure mechanical stability and to avoid circuit overloading and improper grounding, follow the rack manufacturer’s instructions for rack installation. If the instructions are unclear, consult a qualified electrician.

■ Clip nuts are not included in the SMC9712G chassis hardware kit. Clip nuts are

not required for all rack types. Consult your rack manufacturer’s documentation.

■ If you are going to use clip nuts, position them on the rack before you install

the chassis. You must position the clip nuts according to the rack type:

■ For Metric racks, install clip nuts and screws in the closed slots of the chassis

flanges (see Figure 4 on page 26).

■ For Telco racks, install clip nuts and screws in the open slots of the flanges

(see Figure 4 on page 26).

■ Because the equipment rack environment can cause increased ambient

temperatures and reduced air flow, review the “Environmental Specifications” on page 20 and “Ventilation Requirements” on page 20.

■ Review the section “Precautionary Guidelines” on page 21.

■ Review the section “Safety Information” on page 22.

Chassis PreInstallation

Guidelines

Cable Management

Device Preinstallation

Guidelines

■ Review the section “Safety Precautions” on page 26.

■ Before you attempt to mount the chassis in a rack, select a rack that can

support at least 61.8 kg (136.5 lb), which is three times the weight of a fully loaded chassis.

■ If you install more than one chassis in a rack, install the bottom chassis first.

Before you install the chassis:

■ Move the SMC9712G shipping box to a location near where you plan to install

the chassis. Leave the chassis in its packaging until you are ready to install it.

■ For a rack installation, make certain that you have a Phillips screwdriver, a

flat-blade screwdriver, and the hardware kit available. For table or shelf installation, have the rubber feet from the hardware kit available.

■ Attach the flanges (L-shaped brackets) to the sides of the chassis before you

attempt to lift and install the chassis in a rack.

Before you install any cable management device in a rack, determine which rack position is best by examining the:

■ Location in the rack where you plan to install the chassis

■ Depth of the rack in which you plan to install the chassis

■ Space required for proper ventilation of the chassis

■ Space required for module cables to bend

■ Proximity of other devices in the rack and their installation or environmental

requirements

28 CHAPTER 4: SMC9712G CHASSIS

Install the chassis before you install the cable management device, but plan ahead so that there will be sufficient space for the cable management device on the rack.

NOTE: If your rack has a door, you may have to leave the door open to provide

space for the cable management device and the cabling.

Installing the Chassis This section describes how to install the chassis in a rack (with or without clip

nuts), on a table, or on a shelf. See the section that applies to your installation:

■ Rack Installation

■ Table or Shelf Installation

Rack Installation Using at least two people, follow these steps to mount the chassis in a rack:

Some steps in the next procedure mention clip nuts. All racks do not require the use of clip nuts. Consult your rack documentation. (Note: Clip nuts are not provided in the SMC9712G hardware kit.)

1 Read the previous section in this chapter titled “Preinstallation Guidelines” as well

as the all sections that discuss safety information.

2 Using eight of the smaller screws and the flanges from the hardware kit, attach

the flanges to the chassis (four screws per flange) as shown in Figure 5.

Figure 5 Attaching a Flange to the Chassis

Rack-mount flange

3 Locate and mark the holes on the rack where you want to mount the chassis.

4 If applicable, position clip nuts on the rack. See Figure 6.

Installing the Chassis 29

Figure 6 Installing a Clip Nut on the Rack

Rack rail

10-32 inch screw

Be sure to thread the screw through this nut to securely attach each clip to the rack

Top view

5 Have two people lift the chassis through the front of the rack, until both flanges

on the chassis are flush against the front of the rack.

NOTE: You may require additional people to help balance the chassis or secure it

to the rack with screws.

6 Using the pre-installed flange pins for guidance, match the slots on the flange to

the marked area of the rack or to the clip nuts that you positioned on the rack.

Continue to support the back of the chassis.

7 Secure the chassis to the rack with four 10-32 inch screws (and clip nuts if

applicable):

a Install one screw in the bottom part of each flange.

b Install one screw in the top part of each flange.

WARNING: Continue to support the chassis until you have securely installed all four screws (two screws per flange). If you release the weight of the chassis on fewer than four fully inserted screws, the chassis may drop off the rack. Personal injury or serious damage to the chassis may result.

c Tighten all screws completely.

NOTE: Tighten the screws that attach the chassis to the rack to a Torque

Specification of 22-25 in/lb (inch-pounds).

8 Ensure that the front, sides, and the front of the chassis are unobstructed and that

they are in compliance with ventilation requirements.

30 CHAPTER 4: SMC9712G CHASSIS

Table or Shelf

Installation

To install the chassis on a table or shelf, follow these steps:

1 Read the section titled “Preinstallation Guidelines” in this chapter as well as all

sections titled “Safety Information”.

2 Using two people, lift the chassis onto the table or shelf.

3 Remove the four rubber feet from the hardware kit.

4 Position the chassis on its side so that you can access the bottom of the chassis.

5 Remove the protective covering from the adhesive on the rubber feet, and attach

one foot at each corner within the scribed squares. See Figure 7.

Figure 7 Attaching Rubber Feet to the SMC9712G Chassis

6 Position the chassis so that it rests upright and level on its rubber feet.

7 Ensure that the front, sides, and the front of the chassis are unobstructed and that

they are in compliance with ventilation requirements.

Installing the Cable Management Device 31

Installing the Cable Management Device

An optional cable management device is included in the SMC9712G hardware kit. The Cable Management Device helps to organize module cables from either the top or the bottom of the chassis.

You may have other types of cable management devices at your site; if so, follow the manufacturer’s suggested installation procedures.

To install the cable management device, follow these steps:

1 Read the section titled “Preinstallation Guidelines” in this chapter as well as all

sections titled “Safety Information.”

2 Place the cable management device flush up against the top or bottom of the

chassis as shown in Figure 8.

Figure 8 Position of the Cable Management Device

Flange

Cable

management

device

3 Using a Phillips screwdriver, secure the cable management device to the rack with

two screws (and with clip nuts if you are using these).

a If you use clip nuts, consider attaching nylon flat washers to the back of the

screws (to protect the face of the cable management device) and place the clips nuts on the rack rail.

b Tighten the screws completely.

The SMC9712G accessories package includes fourteen plastic ties that can be used to bundle the interface module cables into logical groups for easier management.

32 CHAPTER 4: SMC9712G CHASSIS

SMC9712G POWER SUPPLIES

This chapter describes how to install and remove power supplies from the SMC9712G chassis. The sections are titled as follows:

■ Power Supply Features

■ Installing a Power Supply

■ Removing a Power Supply

■ Troubleshooting a Power Supply

Power Supply Features

The SMC9712G can contain two 300-Watt, modular AC power supplies (Model Number SMC9712P), but only one is required for normal operation of a fully loaded chassis. The power supplies provide power to the management modules, interface modules, fans, and backplane.

Power supplies are installed from the front of the SMC9712G chassis, as shown in Figure 9.

Figure 9 SMC9712G with Minimum Front Configuration — 1 Power supply

34 CHAPTER 5: SMC9712G POWER SUPPLIES

Figure 10 and Figure 11 show the front and front views of a SMC9712G power supply. The power supply connector shown in Figure 11 makes contact with a connector inside the chassis.

Figure 10 External View of the SMC9712G Power Supply

Retainer

screw

Figure 11 Chassis Connector and Guide Pins on the SMC9712G Power Supply

Powe r indicators

Power supply

handle

AC input

socket

Normal Operating

Requirements

Power Supply Slot

Covers

Power supply

guide pin

Power supply

connector

Only one power supply is required for normal operation of a chassis that contains modules and fans in all slots.

However, to help to maintain high availability of your network, SMC recommends that you install a second power supply in the chassis and connect it to a dedicated power source.

All SMC9712G chassis have one power supply preinstalled at the manufacturing center. If you want to configure your chassis for high availability, order a second power supply and install it at your site. Save the blank faceplate that you remove for future use.

If one of the power supply slots is empty, ensure that it is covered with a blank faceplate to ensure proper airflow and cooling of the chassis.

Power Supply Features 35

AC and DC LEDs When the power supply, power cord, and power source are all functioning

normally, both LEDs on a power supply are lighted. If one or both LEDs are not lighted, see the section “Troubleshooting a Power Supply” in this chapter.

No ON/OFF Switch There is no ON/OFF button on power supplies or anywhere on the SMC9712G

chassis. The mains power cord serves as the power disconnect. The power supply receives power as soon as you connect the power cord to a mains outlet.

Power Cords The type of power cord that is used to connect a power supply to a mains outlet

depends on your country location. If you did not receive the correct type of power cord in the shipping box, contact your supplier or SMC.

Autosensing Capability SMC9712G power supplies have autosensing capability. This means that each

power supply can automatically sense the type of input voltage to which it is being connected at the electrical outlet. Thus, although countries around the world differ in their standard input voltage, the same power supply can function everywhere.

How Two Supplies

Operate

When two power supplies are installed, they operate in a load-sharing manner. This means that each power supply provides an equal amount of the load current. This is done so that if one power supply fails, the other power supply can immediately provide all required power and network activity is not disrupted.

Maintenance Ensure that the immediate area around the SMC9712G is free from dust or small

debris and that the side and front vents are unobstructed. There are no user-serviceable parts on a power supply.

If Failure Occurs If a power supply failure occurs and a second power supply is installed, Switch

activity is not disrupted. If a second power supply is not installed, then Switch activity is immediately halted.

If a power supply fails, remove it as described in “Removing a Power Supply” in this chapter and return the components to your supplier. Consult your purchase records so that you can determine if the incident occurred during the warranty period.

Hot Swap If you have two power supplies installed and at least one is operating normally,

you can remove and replace the other power supply while the chassis continues to be powered on. This activity is called hot swap. It does not interfere with operation.

For more information about power requirements for the chassis, see “Power Requirements” on page 22.

36 CHAPTER 5: SMC9712G POWER SUPPLIES

Installing a Power Supply

To install a power supply into the SMC9712G chassis, follow these steps:

1 Read the following warnings and preparation guidelines:

WARNING: The SMC9712G chassis and its components (such as power supplies) must be installed, maintained, or replaced only by trained service personnel. This guide assumes that the network administrator has a working knowledge of local area network (LAN) operations. Furthermore, this guide assumes that the network administrator has obtained appropriate technical training and experience to perform tasks in service access areas of network equipment, to be aware of electrical hazards that exist in performing these tasks, and to take steps that minimize the danger to themselves or other persons. If you have questions on installation tasks, contact your network supplier or SMC technical support. See Appendix A for contact information.

WARNING: Hazardous energy levels exist inside of the chassis. Do not place hands or objects into the chassis or touch components on an inserted power supply.

WARNING: To maintain proper cooling in the chassis and to maintain safety compliance, make certain that a blank faceplate covers any empty power supply slot.

WARNING: The power cord serves as the mains disconnect. Do not attach a power cord to a mains outlet until the power supply is fully installed in the chassis.

WARNING: To ensure compliance with international safety standards, only use the power cord that is supplied with the unit.

AVERTISSEMENT: Pour garantir le respect des normes internationales de sécurité, utilisez uniquement l'adaptateur électrique remis avec cet appareil.

WARNHINWEIS: Aufgrund von internationalen Sicherheitsnormen darf das Gerät nur mit dem mitgelieferten Netzadapter verwendet werden.

WARNING: The unit must be connected to an earthed (grounded) outlet to comply with European safety standards and EMC standards.

AVERTISSEMENT: Vous devez raccorder ce groupe à une sortie mise à la terre (mise à la masse) afin de respecter les normes européennes de sécurité.

WARNHINWEIS: Das Gerät muß an eine geerdete Steckdose angeschlossen werden, die europäischen Sicherheitsvorschriften und den Vorschriften zur EMV entspricht.

Before you begin the installation procedure, have ready a flathead torque screwdriver.

2 If you need to:

a Install a power supply in a covered slot, go to step 3.

b Replace a power supply in your chassis, first follow the steps in “Removing a

Power Supply” on page 38 and then return here and proceed to step 4.

3 Using a flathead screwdriver, loosen the screws on the blank faceplate covering

power supply slot, and remove the faceplate.

Store the faceplate in a secure place for possible future use.

Installing a Power Supply 37

4 As shown in Figure 12, grasp either handle on the front of the power supply and

put your other hand beneath the power supply to support it. Then, face the front of the chassis.

Figure 12 SMC9712G Chassis 300-watt AC Power Supply

Retainer

screw

Power indicators

Power supply

handle

AC input

socket

5 Gently push the power supply inward, allowing the guide pins (see Figure 13) to

align the connector on the power supply with the connector that is inside the slot.

Figure 13 Connectors and Guide Pins on SMC9712G Chassis Power Supply

Power supply

guide pin

Power supply

connector

You will feel a slight resistance as the connectors engage.

CAUTION: If the resistance is too great, the power supply connectors and the backplane connectors may not be aligned properly. Do not force the power supply into the slot or you can damage the connectors. If necessary, remove and reinsert the power supply, ensuring that the connectors are aligned.

6 To secure the power supply to the chassis, tighten the two retainer screws (see

Figure 12) to a torque specification of 1.5 kg-cm (1.3 in-lb).

CAUTION: Do not attach the power cord to the mains power outlet until the power supply is fully secured in the chassis.

38 CHAPTER 5: SMC9712G POWER SUPPLIES

7 Before you apply power to the Switch, consult the setup procedure in Chapter 1.

If you are performing the initial installation of a SMC9712G, SMC recommends that you install all modules and power supplies first, then power up the Switch. This way, you can direct your full attention to the LEDs on the modules and power supplies. If the SMC9712G is powered up while you install components, you must finish securing them before you can concentrate on their LEDs.

8 If you are ready to apply power to the Switch, plug one end of the power cord into

the socket on the power supply and then plug the other end into the dedicated electrical outlet.

If both the AC and DC LEDs are lighted, then the power supply is functioning normally. If not, consult the section “Troubleshooting a Power Supply” in this chapter.

If you have one power supply installed, it will assume the full load of the chassis. If you have two power supplies installed, they will share the chassis load.

Removing a Power Supply

This section describes how to remove a 300-watt AC power supply from the SMC9712G chassis.

WARNING: Before you attempt to remove a power supply from the chassis, be sure to disconnect the power cord from the electrical outlet and then from the SMC9712G power supply to avoid hazardous energy levels.

Before you begin, have ready a flathead screwdriver.

To remove a power supply, follow these steps:

1 Remove the power cord from the electrical outlet.

2 Remove the power cord from the AC input socket on the SMC9712G power

supply.

3 Remove the SMC9712G power supply:

a Using a flathead screwdriver, loosen the retainer screws that secure the power

supply to the front of the chassis. (See Figure 12 on page 37).

b Grasp the handles on the power supply with both hands.

c Begin to pull the power supply straight out, ensuring that you do not damage

the connector and guide pins on the front of the power supply or the connector inside the chassis.

d Once the power supply is partially removed, put one hand beneath the power

supply to support it as you continue to remove it from the chassis.

CAUTION: To prevent damage to the guide pins and connectors, while you pull the power supply straight out of the chassis, put one hand underneath the power supply to support it.

4 If you are not going to install a replacement power supply in the empty slot, install

a blank faceplate over the empty slot to ensure proper cooling in the chassis.

Troubleshooting a Power Supply 39

Troubleshooting a Power Supply

Diagnosing Switch

Indicators

Intermittent Operation If the chassis powers off after running for a period of time, check for loose power

Power Supply Failure There are no user-serviceable parts on a power supply. Do not disassemble a

If a power supply failure occurs under any condition, a message or trap is sent to the SNMP management application. If you see this trap, or experience any other problems with the power supplies, please refer to the following sections and contact technical support personnel.

If the AC LED on the power supply (see Figure 12 on page 37) does not light up when the power cord is plugged in, you may have a defective power outlet, power cord, or power supply. Check the power outlet by plugging in another device that is functioning properly. Check the power cord with another device.

If the AC LED lights up but the DC LED does not light up when the power cord is plugged in, you have a defective power supply.

If you need further assistance, contact your technical support provider or SMC for assistance.

connections, power losses or surges at the power outlet, and verify that the fans on the back of the chassis are unobstructed and operating prior to shutdown. If you still cannot isolate the problem, then the power supply may be defective. In this case, contact your technical support provider or SMC for assistance.

power supply and attempt to fix it. If a power supply fails, simply remove it as described in this chapter and return the components to your supplier or SMC. Consult your purchase records so that you can determine if the incident occurred during the warranty period.

40 CHAPTER 5: SMC9712G POWER SUPPLIES

SMC9712G FAN TRAYS

This chapter describes how to remove and install a fan tray (Model Number SMC972F) from the SMC9712G chassis. The main sections are titled as follows:

■ Fan Tray Description

■ Removing a Fan Tray

■ Installing a Fan Tray

■ Troubleshooting a Fan Tray

Fan Tray Description The SMC9712G chassis can contain two fan trays (Model Number SMC9712F),

which are installed from the rear of the chassis, as shown in Figure 14.

Figure 14 Fan Trays in the SMC9712G Chassis

Fan tray

(in slot 1)

Fan tray

(in slot 2)

Heat is produced while the SMC9712G is operating. To cool the chassis, the fan trays pull in cooler ambient air from vents in the module faceplates and then expel the hot air through vents in the rear of the fan trays.

The power supplies also contain small fans. Their fans pull air from side vents in the chassis and expel hot air through vents in the rear of the power supplies.

Fan tray failure or ambient air that is too hot will eventually cause the SMC9712G to power off. Ensure that your site meets the requirements described in Chapter 3.

The chassis does not contain temperature sensors. However, a trap is sent to the management application when one or more fans in a fan tray is not operating normally.

42 CHAPTER 6: SMC9712G FAN TRAYS

Normal Operation Two fan trays with a total of four functioning fans must be installed and operating

at all times. If one fan in a fan tray fails, replace the entire fan tray as soon as possible.

CAUTION: All four fans must be operational when the SMC9712G is powered on to ensure proper cooling of the chassis.

CAUTION: The SMC9712G chassis will continue to run if one fan fails. However, replace the fan tray as soon as possible.

See the Ventilation Requirements and Environmental Specifications in Chapter 3.

All SMC9712G chassis have two fan trays preinstalled at the manufacturing center. You do not need to install a fan tray until one of the original fan trays fails or is operating intermittently.

Maintenance Ensure that the ambient environment for the Switch remains within the

specifications in Chapter 3. In addition, ensure that the immediate area around the SMC9712G is free from dust or small debris and that the module and fan vents are unobstructed. There are no user-serviceable parts on a fan tray.

If Failure Occurs If one or both of the fans in a fan tray fails or operates intermittently, remove and

reinsert the fan tray as described in sections “Removing a Fan Tray” and “Installing a Fan Tray” in this chapter. If problems continue, remove the fan tray and replace it with a new one. There are no user-serviceable parts in a fan tray. Do not attempt to fix it. Consult your purchase records so that you can determine if the incident occurred during the warranty period, and return the faulty fan tray to your supplier or to SMC. The warranty terms are printed in the SMC9712G Key Information Guide.

Hot Swap You can remove or install a fan tray while the Switch is powered on. This activity is

called hot swap.

Removing a Fan Tray 43

Removing a Fan Tray To remove a fan tray from the SMC9712G chassis, follow these steps:

WARNING: The SMC9712G chassis and its components (such as fan trays) must be installed, maintained, or replaced only by trained service personnel. This guide assumes that the network administrator has a working knowledge of local area network (LAN) operations. Furthermore, this guide assumes that the network administrator has obtained appropriate technical training and experience to perform tasks in service access areas of network equipment, to be aware of electrical hazards that exist in performing these tasks, and to take steps that minimize the danger to themselves or other persons. If you have questions on installation tasks, contact your network supplier or SMC technical support. See Appendix A for contact information.

Before you begin, have ready a flathead screwdriver.

1 Face the back of the chassis and using a flathead screwdriver, loosen the two

retaining screws that attach the fan tray to the chassis (Figure 15).

2 Grasp the fan tray around the edges with both hands, and begin to pull the fan

tray towards you.

CAUTION: If the chassis is powered on, one or both of the fans in the fan tray may be rotating prior to removal. Once the fan tray is partially removed, the fans will lose power and begin to rotate more slowly. Before you completely remove the fan tray from the chassis, wait until both fans in the fan tray stop rotating completely.

Figure 15 Removing the Fan Tray

Retaining screw

Fan tray

Retaining screw

3 After the fans have stopped rotating, continue to pull the fan tray straight out

from the chassis.

4 Install a replacement fan tray as soon as possible. For procedures, see “Installing a

Fan Tray” next in this chapter.

44 CHAPTER 6: SMC9712G FAN TRAYS

Installing a Fan Tray To install a new fan tray in the SMC9712G chassis, follow these steps:

Before you begin, have ready a flathead screwdriver.

1 Facing the back of the chassis, grasp the front panel of the fan tray around the

edges.

2 Slide the fan tray into the chassis, using the guides in the chassis slot.

Figure 16 Installing the Fan Tray

Retaining screw

Fan tray

Retaining screw

3 Gently push the fan tray inward until the connectors engage.

You will feel a slight resistance as the connectors engage.

CAUTION: If the resistance is too great, the fan tray connector and chassis connector may not be aligned properly. Do not force the fan tray inward or you can damage the connectors. If necessary, remove and reinsert the fan tray.

Figure 17 Rear View of a SMC9712G Fan Tray

Fan tray

connector

Installing a Fan Tray 45

Retaining

screw

4 Verify that the fan tray is flush with the back of the chassis; do not leave the fan

tray partially out of the slot. If the fan tray and the chassis are not properly aligned, remove the fan tray and reseat it. Do not tighten the screws to seat the fan tray.

5 Secure the fan tray to the chassis by tightening the two external retaining screws

with a flathead screwdriver.

Tighten the screws to a Torque Specification of 1.5 kg-cm (1.3 in-lb).

NOTE: The fans begin rotating when you power on the chassis or when the

connector on a newly inserted fan tray makes contact with the backplane connector in a powered-on chassis.

6 Visually inspect all installed fans to verify that each is turning continuously when

the chassis is powered up.

If one of the fans in a fan tray is not running at all or is running intermittently, remove and reinsert the fan tray. If problems continue, replace the fan tray with a different one.

46 CHAPTER 6: SMC9712G FAN TRAYS

Troubleshooting a Fan Tray

All four fans must rotate continuously for normal operation.

If one or both fans in a fan tray fail, a message or trap is sent to the SNMP management application to alert you.

If one or both of the fans in a fan tray operate intermittently or fail, remove and reinsert the fan tray and secure it as described in this chapter. From this, you can determine if the problem was simply due to a loose connection or fan tray that was not secured to the chassis.

If problems continue, remove and replace the fan tray with a new one.

There are no user-serviceable parts in a fan tray. Do not attempt to fix a faulty fan tray. Return the faulty fan tray to your supplier or to SMC. Consult your purchase records so that you can determine if the incident occurred during the warranty period. The product warranty terms are printed in the SMC9712G Key Information Guide.

NETWORK MANAGEMENT MODULES

AND INTERFACE MODULES

The front of the SMC9712G chassis has 14 slots that hold the following types of modules:

■ Slots 1-12 can house any Fast Ethernet or Gigabit Ethernet Interface Module.

■ Slots M1 and M2 can house Network Management Modules.

This chapter describes the visible aspects of each currently available module or related components and how to install or remove them. The major sections of this chapter are as follows:

■ Network Management Module Overview

■ Interface Module Overview

■ Fast Ethernet Interface Modules

■ Gigabit Ethernet Interface Modules

■ Installing a Module

■ Removing a Module

■ GBIC Transceivers

■ Attaching and Removing GBIC Transceivers

■ Troubleshooting Modules

For information about the software features and the default software configuration, see the SMC9712G Software Configuration Guide. A printed copy of that guide is included in the shipping box of every standard chassis or you can download a copy from the SMC Web site.

48 CHAPTER 7: NETWORK MANAGEMENT MODULES AND INTERFACE MODULES

Network Management Module Overview

The SMC9712G is required to have one Network Management Module (NMM) installed in slot M1 or M2. These slots can only house this type of module.

CAUTION: All standard chassis leave the manufacturing center with one NMM preinstalled in slot M1 or M2. The other M slot will be covered with a blank faceplate and you must leave it in place until you are ready to install a redundant NMM.

The NMM performs two critical functions in the chassis: (1) the central Network and (2) the management entity.

Network Functions The Network Management Module includes a Network that serves as the central

backplane aggregator for the chassis. That is, if an interface module receives a packet that is not destined for one of its local ports, it forwards it to the NMM for processing. The NMM routes the packet to the correct interface module in the chassis.

The system software resides on the NMM. Software is preinstalled on the NMM at the manufacturing center so that the Switch is ready to operate in your network after you physically install it. For information about the default settings on the software features or how to modify them see the SMC9712G Software Configuration Guide.

Management Functions The Network Management Module exchanges information with all modules

through the management bus. The module uses the management bus to send commands to interface modules and to collect information from interface modules.

The SMC9712G software includes a Web management interface and a menu-based command line interface. You can access the Web management interface through any Ethernet port from your PC using a Web browser. You can access the command-line interface through the RS-232 console port on the NMM by using terminal emulation software (such as HyperTerminal for Windows

remotely through any Ethernet port on the Switch from your PC by using a Telnet utility.

The NMM also allows you to configure and monitor the SMC9712G chassis using SNMP-based management software from a remote workstation. Two examples of

such software include Hewlett-Packard’s HP Openview

and SMC Network

Supervisor.

You can download SMC Network Supervisor from the SMC Web site.

For more information about management access, see the SMC9712G Software Configuration Guide.

CAUTION: Do not install or remove any modules during the system power-on process or while software is downloading to the Network Management Module.

), or

CAUTION: If only one Network Management Module (NMM) is installed in a chassis, and you remove the NMM when it is operating normally or if the NMM fails, all traffic processing on interface modules stops.

Network Management Module Overview 49

Figure 18 identifies the components on the front of the NMM.

Figure 18 Front faceplate of the Network Management Module

Retaining screw

Ejector handle

Port Mode selection button

Port Mode display option

Ejector handle

Model number

Module status LEDs

Release button

Display selection

ort Mode LEDs

for p on interface modules

Console port

Retaining screw

Slot number window

The front panel of the NMM has the following features:

■ Ejector handles — You use these movable handles at the top and bottom of

the faceplate to insert and remove the module from the chassis. See the procedures in “Installing a Module” and “Removing a Module” later in this chapter.

■ Retaining screws — You use these screws to secure the module in the chassis

after you have closed the ejector handles. Do not use these screws to seat the module, or you may damage the connectors on the rear of the module or inside the chassis.

■ Release button and LED — You use this button and its LED as part of the

module removal procedure. See “Removing a Module” later in this chapter.

■ Slot window — After a module is installed, this hole in the module faceplate

allows you to see the number of the chassis slot that holds the module. An NMM can be installed in either slot M1 or M2.

■ General status LEDs — These are the Diagnostics (D), Power (PWR),

Primary (P), and Release (R) LEDs. Table 5 explains their purposes.

50 CHAPTER 7: NETWORK MANAGEMENT MODULES AND INTERFACE MODULES

Tab le 5 Definitions of General Status LEDs

LED Name Condition Description

Diag (Diagnostics)

Power Off

Primary Off

Release Flashing amber

■ Mode button and LEDs — You use this button on the NMM to set the Port

Flashing green

Green

Blue

Amber

Mode LED display on all interface modules to one of three modes: Activity, Full Duplex, or Flow Control. Table 6 defines each mode. You cannot have different modes display on different modules.

Self-diagnostic process or software download is occurring.

System has passed diagnostics or completed software download.

Module is not receiving power.

Module is receiving power.

Module is in Standby mode.*

Module is in Primary mode and is functioning as the central backplane aggregator and management entity for the SMC9712G.

System is preparing for module removal.

Module is ready for removal.

Tab le 6 Definitions of Mode LEDs on the Network Management Module

LED Name Condition Description

ACT* (Activity)

FDX* (Full Duplex)

FC* (Flow Control)

* Use the Mode button on the primary NMM to change the Port Mode LED display selection, which applies

to all ports on all interface modules.

■ Model Number — Use this number to order another NMM from your SMC

Green

Off

Green

Off

Green

Off

Port Mode LEDs on all interface modules display network activity.

One of the other two modes is selected.

Port Mode LEDs on all interface modules display full-duplex status.

One of the other two modes is selected.

Port Mode LEDs on all interface modules display flow-control status.

One of the other two modes is selected.

supplier or to reference problems that you describe to technical support personnel.

■ Console port — Use this shielded male DB-9 connector to make a RS-232

serial connection from a terminal or PC with terminal emulation software and a standard null modem cable to access the CLI. Table 7 lists the console port pinouts.

Network Management Module Overview 51

Tabl e 7 Console Port Pinouts

Pin Signal Name

1 Not Used

2 Receive Data (RD)

3 Transmit Data (TD)

4 Not Used

5 Signal Ground (GND)

6 Not Used

7 Request to Send (RTS)

8 Clear to Send (CTS)

9 reserved

Table 8 lists 9-pin-to-9-pin assignments for connecting your PC to the NMM.

Tabl e 8 RS-232 9-Pin-to-9-Pin Cable Connection Pin Assignments

Signal NMM Pin DTE Pin Signal

CD 1 N/A Not Used

RX 2 3 TX

TX 3 2 RX

DTR 4 6 Not Used

GND 5 5 GND

DSR 6 4 Not Used

RTS 7 8 CTS

CTS 8 7 RTS

Reserved 9 N/A Not Used

High Availability

Operation

Table 9 lists 9-pin-to-25-pin assignments for connecting your PC to the NMM.

Tabl e 9 RS-232 9-Pin-to-25-Pin Cable Connection Pin Assignments

Signal NMM Pin DTE Pin Signal

CD 1 N/A Not Used RD 2 2 TD TD 3 3 RD DTR 4 6 Not Used GND 5 7 GND DSR 6 20 Not Used RTS 7 5 CTS CTS 8 4 RTS Reserved 9 N/A Not Used

To establish a redundant switch management configuration, you must have two Network Management Modules (NMMs) installed in the chassis. The slots for management modules are M1 and M2.

A redundant NMM configuration provides a seamless flow of management operation. After the failover mechanism reboots the system, there is no loss of configuration data.

52 CHAPTER 7: NETWORK MANAGEMENT MODULES AND INTERFACE MODULES

Installation If you install two Network Management Modules (in slot M1 and M2), your system

has redundancy in both management and system controller functions. When you power on or reboot the system with two NMMs installed, the module in slot M1 becomes the primary NMM and the module in slot M2 becomes the secondary NMM. However, if you install an NMM while the system is powered on, the first module installed becomes the primary NMM and second module installed becomes the secondary NMM.

The Primary LED will light up on the module your system has assigned as the Primary NMM.

The Relationship

Between Two

Management Modules

The system categorizes the two NMMs as primary and secondary management entities. The secondary module operates in hot standby mode, which means that it is constantly kept informed about the dynamic state of the management activities that are occurring on the primary NMM.

The system treats both NMMs as a single logical device. The primary NMM and the secondary NMM become synchronized after redundancy is established. When any configuration or non-volatile data is modified on the primary NMM, the data is automatically modified on the secondary NMM. Thus, if the primary NMM fails for any reason, the secondary NMM immediately takes over all primary functions.

The Failover Process If you remove (deinstall) the primary NMM or if the module fails in some way, the

following process occurs automatically:

1 The system initiates the fail-over mechanism (after, for example, the primary

module fails or is removed).

2 The system reboots and the secondary NMM becomes the primary NMM.

Because it learned all the configuration settings from the primary NMM, it continues to provide all the management functions.

3 If you remove a failed NMM that used to be primary and install a new NMM in

that slot, the new module remains secondary and starts duplicating all configuration information.

If, after the failover occurs, the failed NMM recovers to a normal operating condition, it will remain in the secondary state. The failover mechanism is non-revertive. Even if the problem that caused the failover is resolved, the failover process does not switch the primary state back to the original primary NMM unless the system is rebooted.

Connectivity Rules The following connectivity rules apply after you establish NMM redundancy:

■ You cannot access the secondary NMM through its console port. Console

management is only available through the primary NMM.

■ You cannot Telnet to the secondary NMM from an external source because

both the primary NMM and the secondary NMM share the same IP address for the Switch. Therefore, when you attempt to Telnet to the shared IP address, you always access the primary NMM.

Interface Module Overview 53

Interface Module Overview

Feature Configuration

Process

Traffic Handling Each interface module learns addresses of locally attached devices and maintains a

Hot Swap All Fast Ethernet and Gigabit Ethernet Interface Modules support hot swapping,

The SMC9712G contains fourteen slots in total, with twelve of those slots being designated for interface modules. Fast Ethernet and Gigabit Interface Modules can occupy any of the slots that are numbered 1 – 12 and can be installed in any order. They cannot occupy slots M1 and M2, which are designated for Network Management Modules.

To configure features that affect ports on an interface module, you connect to either the Web or CLI management interface on the primary Network Management Module. You do not connect to interface modules separately. In addition, you do not load software on interface modules.

database. When the source port and destination port of a given packet are located on the same interface module, the packet remains local to the interface module and is switched or routed between these ports.

However, when the destination address of a given packet is not local, the interface module sends the packet over the backplane to the primary Network Management Module, which switches or routes the packet to the proper module or floods it.

which means that you can remove modules and install modules while the chassis is powered up and operating. Hot swapping does not interfere with the general operation of the Switch. However, see the caveats and cautions in the “Safety Precautions” and “Handling Precautions” sections.

Fast Ethernet Interface Modules

8-port 10/100BASE-TX

Fast Ethernet Module

SMC offers two Fast Ethernet modules to suit different cabling infrastructures. This section outlines the physical attributes of each module.

■ Model Number — SMC9712T

■ Size — Occupies one slot in the SMC9712G chassis

■ Functionality — Layer 2 and Layer 3 switching

■ Physical features:

■ Diagnostic LED shows module status.

■ Release button and LED are used to remove the module.

■ Eight 10/100BASE-TX shielded RJ-45 ports provide a 10 Mbps or 100 Mbps

connection. Ports auto-negotiate for connection speed, duplex mode, and flow control.

■ Module and Port LEDs — See Table 11 on page 56 for definitions.

■ Front faceplate — See Figure 19 on page 55 for details.

■ Cabling requirements:

■ Category 5 UTP or STP.

■ Maximum Segment Length for half or full duplex is 100 m (328 ft).

■ All RJ-45 ports on the module have automatic MDI/MDI-X detection.

54 CHAPTER 7: NETWORK MANAGEMENT MODULES AND INTERFACE MODULES

■ Table 10 lists the 10/100BASE-TX MDI/MDI-X port pinouts:

Table 10 10/100BASE-TX (MDI/MDI-X) Port Pinouts

Pin MDI Signal Name MDI-X Signal Name

1 Transmit Data plus (TD+) Receive Data plus (RD+) 2 Transmit Data minus (TD-) Receive Data minus (RD-) 3 Receive Data plus (RD+) Transmit Data plus (TD+) 4 No Connect No Connect 5 No Connect No Connect 6 Receive Data minus (RD-) Transmit Data minus (RD1-) 7 No Connect No Connect 8 No Connect No Connect

8-port 100BASE-FX

Fast Ethernet Module

■ Model Number — SMC9712FMMT

■ Size — Occupies one slot in the SMC9712G chassis

■ Functionality — Layer 2 and Layer 3 switching

■ Physical features:

■ Diagnostic LED shows module status

■ Release button and LED are used to remove the module

■ Eight 100BASE-FX female MT-RJ ports provide a 100 Mbps, full duplex

connection.

■ Module and Port LEDs — See Table 11 on page 56 for definitions.

■ Front faceplate — See Figure 19 on page 55 for details.

■ Cabling requirements:

■ 62.5/125 micron Multimode fiber.

■ MT-RJ male patch cables are required. The MT-RJ connector conforms to

ISO/IEC 11801 and ANSI/EIA/TIA Draft Detail Specification for optical connectors.

■ Maximum Segment Length is 2 km (1.243 miles).

Fast Ethernet Interface Modules 55

Figure 19 shows the two available Fast Ethernet Interface Modules. Table 11 describes the purpose of the LEDs on each module.

Figure 19 Front Faceplates of SMC9712G Fast Ethernet Interface Modules

Retaining screw

Ejector handle

Release LED

Release button

Port Link LED

Port Mode LED

RJ-45 ports

Ejector handle

Model number

Diagnostic LED

Port Link LED Port Mode LED

MT-RJ ports

Slot number window

56 CHAPTER 7: NETWORK MANAGEMENT MODULES AND INTERFACE MODULES

Table 11 LED Indicators on Fast Ethernet Interface Modules

LED State or Color Definition

Diag (Diagnostics)

Green Power is on (normal operation).

Flashing Green Self-diagnostic process is in progress.

Off After initial insertion or module reset, the LED remains

Release Amber Module is ready for removal.

Flashing Amber System is preparing for module removal.

Off Module is in normal state.

Link Amber Port is operating at 10 Mbps (10/100BASE-TX only).

Green Port is operating at 100 Mbps.

Flashing Amber Port is set to disabled.

Off Cable is not connected or link is down.

Mode* If this LED is Amber

and FC LED on NMM* is Green

If this LED is Off and FC LED on NMM is Green

If this LED is Amber and FDX LED on NMM is Green

If this LED is Off and FDX LED on NMM is Green

If this LED is Amber and Act LED on NMM is Green

If this LED is Off and Act LED on NMM is Green

* Use the Mode button on the Network Management Module (NMM) to change the mode. This mode

applies to all interface modules. To know which mode is selected when you view a Port Mode LED on an interface module, look at the Port Mode LEDs on the NMM.

unlit for approximately 3 seconds. At other times, an unlit LED indicates diagnostic failure.

Flow control is enabled on the port.

Flow control is disabled on the port.

Port is operating at full duplex.

Port is operating at half duplex (10/100BASE-TX only).

Port is receiving or transmitting packets.

Port is not active.

Gigabit Ethernet Interface Modules 57

Gigabit Ethernet Interface Modules

1000BASE-SX

Gigabit Ethernet

Modules

1000BASE-T

Gigabit Ethernet

Modules

SMC offers six Gigabit Ethernet modules to suit different cabling infrastructures and density requirements. This section outlines the physical attributes of each module.

■ Model Number — SMC9712GSSC (1 SC-type port), SMC9712GSSC/2 (2 MT-RJ

ports)

■ Size — Occupies one slot in the SMC9712G chassis

■ Functionality — Layer 2 and Layer 3 switching

■ Physical features:

■ Release button and LED are used to remove the module.

■ 1000BASE-SX ports provide a 1000 Mbps, full duplex connection.

■ Module and Port LEDs — See Table 13 on page 60 for definitions.

■ Front faceplate — See Figure 20 on page 59 for details.

■ Cabling requirements:

■ 50 micron Multimode fiber; maximum segment length is 500 m (1640 ft).

■ 62.5 micron Multimode fiber; maximum segment Length is 220 m (722 ft).

■ Model Number — SMC9712GT (1 port), SMC9712GT/2 (2 ports)

■ Size — Occupies one slot in the SMC9712G chassis

■ Functionality — Layer 2 and Layer 3 switching

■ Physical features:

■ Release button and LED are used to remove the module.

■ 1000BASE-T RJ-45 ports provide auto-negotiation for connection speed

(10/100/1000), duplex mode, and flow control.

■ Module and Port LEDs — See Table 13 on page 60 for definitions.

■ Front faceplate — See Figure 20 on page 59 for details.

■ Cabling requirements:

■ Category 5 UTP or STP works for 1000BASE-T as long as all four pairs are

connected. For more reliable performance, we recommend using Category 5E as noted in the ANSI/TIA/EIA-568-A-5 specification.

■ Maximum segment length: 100 m (328 ft) for half duplex or full duplex.

■ All RJ-45 ports on the module have automatic MDI/MDI-X detection at all

speeds. Table 12 lists the 1000BASE-T MDI and MDI-X port pinouts:

Table 12 1000BASE-T (MDI/MDI-X) Port Pinouts

58 CHAPTER 7: NETWORK MANAGEMENT MODULES AND INTERFACE MODULES

Pin MDI Signal Name MDI-X Signal Name

1 Transmit Data plus (TD1+) Transmit Data plus (TD2+) 2 Receive Data minus (RD1-) Receive Data minus (RD2-) 3 Transmit Data plus (TD2+) Transmit Data plus (TD1+) 4 Transmit Data plus (TD3+) Transmit Data plus (TD4+) 5 Receive Data minus (RD3-) Receive Data minus (RD4-) 6 Receive Data minus (RD2-) Receive Data minus (RD1-) 7 Transmit Data plus (TD4+) Transmit Data plus (TD3+) 8 Receive Data minus (RD4-) Receive Data minus (RD3-)

GBIC

Gigabit Ethernet

Modules

■ Model Number: SMC9712GB (1 port), SMC9712GB/2 (2 ports)

■ Size — Occupies one slot in the SMC9712G chassis

■ Functionality — Layer 2 and Layer 3 switching

■ Physical features:

■ Diagnostic LED shows module status.

■ Release button and LED are used to remove the module.

■ GBIC ports with a GBIC transceiver installed (not included with module)

provide a 1000 Mbps connection. GBIC transceivers provide autonegotiation for duplex mode and flow control.

■ A GBIC port can accept a 1000BASE-SX (multi-mode fiber) transceiver or

1000BASE-LX (single-mode fiber) transceiver. The GBIC module should only be used with the transceivers approved by SMC. See the “GBIC Transceivers” section later in this chapter.

■ Module and Port LEDs — See Table 13 on page 60 for definitions.

■ Front faceplate — See Figure 20 on page 59 for details.

■ Use either of the following transceivers:

GBIC Transceiver Maximum Transceiver Range SMC Model Number

1000BASE-SX 500 m (1,640 ft) SMCBGSSCX1

1000BASE-LX 10,000 m (32,810 ft) SMCBGLSCX1

■ Cabling requirements:

■ The type of fiber optic cabling that you use depends on the GBIC transceiver

that you select and the transmission range that you need. See the section “GBIC Transceivers” on page 67 for more information.

Figure 20 identifies the components on the front of the six currently available Gigabit Ethernet Interface Modules.

Figure 20 Front Faceplates of Gigabit Ethernet Interface Modules

Retaining screw

Ejector handle

Release LED

Release button

Gigabit Ethernet Interface Modules 59

Model number

Diagnostic LED

MT-RJ port

SC-type port

RJ-45 port

Ejector handle

Port Link LED

Port Mode LED

GBIC transceiver slot

Slot number window

60 CHAPTER 7: NETWORK MANAGEMENT MODULES AND INTERFACE MODULES

Table 13 lists and explains the status LEDs on Gigabit Ethernet Interface Modules and explains their modes.

Table 13 LED Indicators on Gigabit Ethernet Interface Modules

LED State or Color Definition

Diag (Diagnostics)

Release Amber Module is ready for removal.

Link Amber Port is operating at 10 Mbps1.

Mode

10 Mbps and 100 Mbps operation are possible with the 1000BASE-T module only (not with

GBIC or 1000BASE-SX modules).

Use the Mode button on the Network Management Module (NMM) to select the display mode, which applies to all interface modules. To determine the mode that is selected when you view a Port Mode LED on an interface module, look at the Port Mode LED on the NMM.

Green Power is on (normal operation).

Flashing Green Diagnostics is in progress.

Off After initial insertion or module reset, the LED

Flashing Amber System is preparing for module removal.

Off Module is operating in its normal state.

Green Port is operating at 100 Mbps1.

Flashing Green Port is operating at 1000 Mbps.

Flashing Amber Port is set to disabled.

Off Cable is not connected or link is down.

If this LED is Amber and FC LED on NMM is Green

If this LED is Off and FC LED on NMM is Green

If this LED is Amber and FDX LED on NMM is Green

If this LED is Off and FDX LED on NMM is Green

If this LED is Amber and Act LED on NMM is Green

If this LED is Off and Act LED on NMM is Green

remains unlit for approximately 3 seconds. At other times, an unlit LED indicates diagnostic failure.

Flow control is enabled.

Flow control is disabled.

Port is operating at full duplex.

Port is operating at half duplex3.

Port is receiving or transmitting packets.

Port is not active.

Installing a Module 61

Installing a Module If you need to install one or more modules, then read the cautions and instructions

in this section before you begin.

Safety Precautions When you handle components for a SMC9712G, be sure that you follow all safety

precautions. To avoid electric shocks, burns, or equipment damage, read and follow these warnings:

WARNING: The SMC9712G chassis and its components (such as modules) must be installed, maintained, or replaced only by trained service personnel. This guide assumes that the network administrator has a working knowledge of local area network (LAN) operations. Furthermore, this guide assumes that the network administrator has obtained appropriate technical training and experience to perform tasks in service access areas of network equipment, to be aware of electrical hazards that exist in performing these tasks, and to take steps that minimize the danger to themselves or other persons. If you have questions on installation tasks, contact your network supplier or SMC technical support. See Appendix A for contact information.

WARNING: Hazardous energy levels exist inside of the chassis. Use extreme caution when you install, remove, or replace any module in the chassis. When the system is powered 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 maintain proper cooling in the chassis and to maintain safety compliance, make certain that a blank faceplate covers any empty module slot.

WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They cannot be used as standard traditional telephone sockets, or to connect the unit to a traditional PBX or public telephone network. Only connect RJ-45 data connectors, network telephony systems, or network telephones to these sockets. Either shielded or unshielded data cables with shielded or unshielded jacks can be connected to these data sockets.

AVERTISSEMENT: Points d’accès RJ-45. Ceux-ci sont protégés par des prises de données. Ils ne peuvent pas être utilisés comme prises de téléphone conventionnelles standard, ni pour la connection de l’unité à un réseau téléphonique central privé ou public. Raccorder seulement connecteurs de données RJ-45, systèmes de réseaux de téléphonie ou téléphones de réseaux à ces prises. Il est possible de raccorder des câbles protégés ou non protégés avec des jacks protégés ou non protégés à ces prises de données.

WARNHINWEIS: RJ-45-Porte. Diese Porte sind geschützte Datensteckdosen. Sie dürfen weder wie normale traditionelle Telefonsteckdosen noch für die Verbindung der Einheit mit einem traditionellem privatem oder öffentlichem Telefonnetzwerk gebraucht werden. Nur RJ-45-Datenanscluße, Telefonnetzsysteme or Netztelefone an diese Steckdosen anschließen. Entweder geschützte oder ungeschützte Buchsen dürfen an diese Datensteckdosen angeschlossen werden.

62 CHAPTER 7: NETWORK MANAGEMENT MODULES AND INTERFACE MODULES

ESD Safety Information

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

CAUTION: To prevent ESD-related damage:

■ Always wear an ESD wrist strap (not provided) when you handle a module,

ensuring that the strap makes good skin contact and is properly grounded.

■ Keep the module in its antistatic bag until you are ready to install it.

Handling Precautions When you handle the module, follow these precautions:

■ Always handle the module by the front panel only.

■ Do not touch the components, pins, leads, or solder connections.

■ Before you push the module into the chassis, make sure that the module

ejector handles are open.

■ Do not twist or otherwise force the module into the chassis when you insert it.

Use the upper and lower module guides to slowly and carefully slide the module into the chassis.

■ Keep the module in its antistatic bag until you are ready to install it.

Installation Prerequisites Before you install a module, make the following preparations:

■ Verify that the chassis is properly installed in a rack, on a table, or on a shelf,

according to the instructions in Chapter 4.

■ Have a flat-blade torque screwdriver available to secure the module to the

chassis after you install it.

■ Read the SMC9712G Release Notes for potential important information about

installing and upgrading modules in an existing chassis or a new chassis. Release notes are not included with the product packaging.

Slot Restrictions

■ Install a Network Management Module (NMM) in a slot that is labeled M1 or

M2.

■ Install Fast Ethernet or Gigabit Ethernet Interface Modules in slots that are

labeled 1 through 12.

■ For proper airflow and cooling in the chassis, ensure that blank faceplates cover

any empty module slots.

Installing a Module 63

Installation and Removal

Consequences

■ If you only have one Network Management Module (NMM) installed and you

remove it or it fails, all traffic on the interface modules will be interrupted.

■ If your chassis is already operating in your network and you want to remove the

primary NMM, first ensure that a secondary (standby) NMM resides in the chassis. When you remove the primary module, the secondary module is activated and the system is automatically reset.

CAUTION: Do not install or remove modules during the system power-on process or while software is downloading to the Network Management Module.

■ You do not need to disconnect power before you install modules in the

SMC9712G chassis. You can install modules while the chassis is operating. This action is called a hot swap. See the section “Hot Swap” earlier in this chapter for more information.

■ The NMM stores configuration information for up to twelve interface modules.

This information is associated with a module’s hardware addresses which are preprogrammed at the manufacturing center, i.e., every module has unique port-based hardware addresses called MAC addresses. When you remove a module and insert a new module in that slot — even one of the same type — you cannot transfer the old module’s configuration to this module. You will have to manually configure the parameters for the new module’s ports. However, if you immediately re-installed the original module in that slot or in a different slot, the chassis would “remember” the module and retain its configuration parameters.

■ If a module fails and you need to replace it with another one of the same type,

you must configure the new module manually. At this time, you cannot download the previous module’s configuration to the new module.

CAUTION: Be sure to follow the module removal procedure in this chapter. This procedure includes pressing the Release Button on the module and waiting until the Release LED stops flashing before you unscrew the module, release the ejector handles, and remove the module.

CAUTION: Do not install or remove any modules during the system power-on process or while software is downloading to the Network Management Module.

■ If you are performing the initial installation of a SMC9712G, SMC recommends

that you install all modules and power supplies first, then power up the Switch. This way, you can direct your full attention to the LEDs on the modules and power supplies. If the Switch is powered up when you install components, you must finish securing them before you can concentrate on the LEDs.

■ After you install a new module, you must access the CLI or Web interface to

configure the module’s ports as members of VLANs, include them in aggregated links, and so forth. See the SMC9712G Software Configuration Guide.

64 CHAPTER 7: NETWORK MANAGEMENT MODULES AND INTERFACE MODULES

Module Installation

Procedure

If the chassis is powered on when you install a module, power is applied to the module as soon as its rear connector makes contact with the connector that is inside the slot.

To install a Network Management Module or interface module, follow these steps:

1 Before you start the installation process, read all the safety and handling

precautions, and installation prerequisites that are noted earlier in this chapter.

2 Select a slot for the module, following the guidelines in “Slot Restrictions” on

page 62.

3 If you are installing a module in a previously unused slot, remove the blank

faceplate.

Save this faceplate in case you need it in the future. Empty slots must be covered to ensure proper airflow and cooling in the chassis.

If you are installing multiple modules, SMC recommends that you remove only one faceplate at a time so that there are either modules or blank faceplates adjacent to the slot that you have selected. Having these items on either side helps you to install a module correctly.

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

4 Remove the module from its antistatic bag and open the two module ejector

handles so that they are nearly perpendicular to the front panel.

5 Hold the module vertically with the LEDs at the top and begin to insert the module

into the guides on the top and the bottom of the slot. Figure 21 on page 65 shows the module position in the chassis.

CAUTION: Do not twist or bend the module when you insert it into the chassis.

6 Slide the module into the chassis by pushing firmly on the two ends of the front

panel near the ejector handles.

WARNING: Hazardous energy exists inside the chassis. Do not place hands or objects into the chassis or touch components on an inserted module.

Figure 21 Installing a Module in the Chassis

Slot guide

Slot number

window

Installing a Module 65

Slot guide

7 To engage the module with the backplane, use both hands to perform the

following steps:

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 one thumb on the top ejector handle and your other thumb on the bottom

ejector handle. Simultaneously push the ejector handles in toward the front panel until each handle is parallel with or flush against the front panel.

You feel a slight resistance as the connectors fully engage. If the chassis is powered on, the module initialization process begins.

CAUTION: If there is too much resistance when you try to close the ejector handles, the module and backplane connectors may not be aligned. Forcing the module into place can damage both connectors. If necessary, remove and reinsert the module, ensuring that the connectors are properly aligned. Do not tighten the spring-loaded screws to seat the module.

8 To secure the module in the chassis, tighten the spring-loaded screws at each end

of the front panel to a torque specification of 1.5 kg-cm (1.3 in-lb).

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 they are not properly aligned, you may strip the threads.

To ensure that you tighten screws to torque specification, use a torque screwdriver.

66 CHAPTER 7: NETWORK MANAGEMENT MODULES AND INTERFACE MODULES

Removing a Module To remove a Network Management Module or interface module from the

SMC9712G chassis, follow these steps:

CAUTION: The interface modules cannot function unless a Network Management Module is installed in the chassis.

1 Press the recessed button on the module’s front panel to start the module

shut-down procedure, and wait until the module’s Release LED (R) stops flashing before taking any further action.

CAUTION: The recessed button on the module’s front panel must be pressed before removing the module. When the Release LED flashes, the module is completing the transfer of the current packets through its ports before it halts operation. Wait until this LED stops flashing before you remove the module.

2 Loosen the spring-loaded screws at each end of the front panel, using a flathead

screwdriver.

3 Grasp the top ejector handle with the thumb and forefinger of one hand, and the

bottom ejector handle with the other hand. Simultaneously pull the ejector handles until each handle is perpendicular to the front panel. You will feel a slight resistance as the connectors disengage.

CAUTION: Do not twist or bend the module when you remove it from the chassis.

WARNING: Hazardous energy exists inside the chassis. Do not place hands or

objects into the chassis or touch components on a partially inserted module.

4 Gently pull the module out of the chassis, along the guides at the top and the

bottom of the slot.

5 If you are going to leave the slot empty, cover it with a blank faceplate to ensure

proper airflow and cooling in the chassis.

GBIC Transceivers 67

GBIC Transceivers The Gigabit Interface Converter (GBIC) slot on a Gigabit Ethernet Interface Module

(Model Number SMC9712GB and SMC9712GB/2) requires that you attach a GBIC transceiver to it prior to attaching fiber-optic cabling (see Figure 22).

One side of the transceiver fits into the GBIC slot and the other side offers a network port. The transceivers currently supported by this Switch use fiber-optic duplex subscriber connectors (SC).

Figure 22 GBIC Fiber-Optic Transceiver

Compatible Transceivers The following transceivers are compatible with the SMC9712G GBIC Interface

Modules:

1000BASE-LX GBIC

Transceiver

■ 1000BASE-LX GBIC Transceiver (Model Number SMCBGLSCX1)

■ 1000BASE-SX GBIC Transceiver (Model Number SMCBGSSCX1)

The SMC9712G GBIC Interface Module complies with all applicable GBIC standards. GBIC transceivers from other vendors that comply with these standards should function properly when attached to the module.

The 1000BASE-LX GBIC transceiver supports a direct connection to single-mode fiber-optic cable, or connection to multimode fiber through a conditioned launch cable. Table 14 lists the transmission ranges for each GBIC 1000BASE-LX connection.

Table 14 GBIC 1000BASE-LX Transmission Ranges

Fiber Type

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)

Diameter (microns)

Modal Bandwidth (MHz*km)

Transmission Range in meters (feet)

To ensure optimal performance, compatibility, and regulatory compliance, use only conditioned launch cables that SMC supports.

1000BASE-SX GBIC

Transceiver

The 1000BASE-SX GBIC transceivers provide one short-wavelength (850 nm) Gigabit port that can be used for a high-speed backbone or server connection. This port can be connected to a site up to 550 m (1805 ft) away with multimode fiber cable.

68 CHAPTER 7: NETWORK MANAGEMENT MODULES AND INTERFACE MODULES

Attaching and Removing GBIC Transceivers

Before you can connect cabling to a GBIC Gigabit Ethernet Interface Module, you must first insert the GBIC transceiver into the GBIC port on the module.

To remove a GBIC transceiver, use one hand to compress the side tabs on the transceiver and gently pull it out of the port.

To attach a GBIC transceiver, follow these steps:

1 Orient the transceiver so that the SC connector is facing toward you (Figure 23).

Figure 23 Inserting the GBIC Transceiver

GBIC

Interface

Module

GBIC port

Duplex SC

connector

2 Gently slide the transceiver into the GBIC port until the side tabs click 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.

3 Attach the appropriate type of cabling to the SC port on the transceiver.

Troubleshooting Modules 69

Troubleshooting Modules

Interface Modules If you suspect a problem with an interface module, carry out these steps before

This section describes troubleshooting for the interface modules and the Network Management Module.

Before you contact your supplier, a technical support vendor, or SMC, write detailed notes of the situation, including the order of events and who was involved. In addition, have ready key information about your network, including other equipment, applications, and protocols in use.

Consider browsing the information on the support page of the SMC Web site.

For global SMC contact information, see the Appendix A in this guide.

contacting your supplier, technical support vendor, or SMC:

■ Verify that all the LEDs on the module are functioning properly. If not, take

notes of what you believe are abnormalities.

■ Ensure that the chassis is powered-up.

■ Ensure that the module is correctly installed in the chassis.

■ Ensure that devices at the other end of all links are powered-up and operating

correctly.

■ Verify that all connectors on modules and all attached devices are correctly

engaged with the proper cabling.

Network Management

Modules

■ If you are using a fiber optic cable, clean the terminators by wiping them gently

with a clean tissue or cotton bud that is moistened with a little ethanol. Dirty fiber terminators impair the quality of the light that is transmitted through the cable.

■ If a port is not operating, move its cabling to a different but functional port so

that you can determine if there is a problem with the cabling.

■ If a module is not operating, remove it and install it in a different slot to see if

that makes a difference.

■ Write detailed notes of the situation, including the order of events and who

was involved. Have ready information about your network, including other equipment, applications, and protocols in use.

If you suspect a problem with a Network Management Module (NMM), carry out these steps before contacting your supplier, technical support vendor, or SMC:

■ Under normal conditions when you install the NMM, the status LEDs light to

display the operating state. If the chassis is powered on, but the NMM Diagnostic LED does not light, the NMM has failed its self-diagnostic process.

■ Verify that the NMM is installed correctly by following the installation

instructions in this chapter.

■ Install the NMM into the other M slot in the chassis to see if slot location makes

a difference. If the Diagnostic LED still does not light, the software on the NMM may be corrupted. If you can reach the CLI, try downloading a new copy of the software from a TFTP server to the Switch. (For a procedure, see the applicable version of the SMC9712G Release Notes.)

70 CHAPTER 7: NETWORK MANAGEMENT MODULES AND INTERFACE MODULES

■ If you cannot bring up a console connection, verify the port pinouts. See

Table 7 on page 51.

TECHNICAL SUPPORT

SMC provides easy access to technical support information through a variety of services. This appendix describes these services.

Information contained in this appendix is correct at time of publication. For the most recent information, SMC recommends that you access the SMC Corporation World Wide Web site:

http://www.smc.com/

Online Technical Services

World Wide Web Site To access the latest networking information on the SMC Corporation World Wide

Support from Your Network Supplier

SMC offers worldwide product support 24 hours a day, 7 days a week, through the following online systems:

■ World Wide Web site

Web site, enter this URL into your Internet browser:

http://www.smc.com/

This service provides access to online support information such as technical documentation and software, as well as support options that range from technical education to maintenance and professional services.

If you require additional assistance, contact your network supplier. Many suppliers are authorized SMC service partners who are qualified to provide a variety of services, including network planning, installation, hardware maintenance, application training, and support services.

When you contact your network supplier for assistance, have the following information ready:

■ Product model name, part number, and serial number

■ A list of system hardware and software, including revision levels

■ Diagnostic error messages

■ Details about recent configuration changes, if applicable

If you are unable to contact your network supplier, see the following section on how to contact SMC.

Support from SMC If you are unable to obtain assistance from the SMC online technical resources or

from your network supplier, SMC offers technical telephone support services. To find out more about your support options, call the SMC technical telephone support phone number at the location nearest you.

72 APPENDIX A: TECHNICAL SUPPORT

When you contact SMC for assistance, have the following information ready:

■ Product model name, part number, and serial number

■ A list of system hardware and software, including revision levels

■ Diagnostic error messages

■ Details about recent configuration changes, if applicable

GLOSSARY

ambient air temperature The temperature of air that surrounds any electrical part or device. Usually refers

to the effect of such temperature in aiding or slowing down removal of heat by radiation and convection from the part or device in question.

ASIC Application Specific Integrated Circuit. A chip that is custom designed for a

specific application.

autonegotiation A feature that allows some 10/100 Mbps or 10/100/1000 Ethernet ports to

self-determine the proper setting for one or more of the following features between two devices: speed, duplex mode, or flow control.

backbone A relative term that refers to the main segment of a network. A campus backbone

typically runs between buildings. A building backbone connects departments or floors within a building. A backbone can even function on a large scale metropolitan or national data or telecommunications network.

backplane The main bus, or physical set of traces, that carries data within a chassis.

bandwidth Data measured in bits per second that a channel can transmit. The theoretical

bandwidth for an Ethernet segment is 10 mega bits per second (Mbps); for a Fast Ethernet, 100 Mbps; and for Gigabit Ethernet, 1000 Mbps.

bridge Equipment that connects different LANs, allowing communication between

devices that reside on separate LAN segments or collision domains. Bridges are protocol-independent, but hardware-specific, with communication limited to the data link layer (Layer 1) and physical layer (Layer 2) of the OSI reference model.

bus topology A network architecture that has all of its nodes connected to a single cable. A

star-wired topology is usually preferred over a bus topology.

campus network A LAN that consists of several smaller LANs within and between buildings.

client/server A single-user computer that requests application or network services from a server.

CoS Class of Service. A process which differentiates traffic into eight numbered classes

and assigns priorities to those classes. Some network devices can read those priorities and process traffic in accordance with those priorities.

collision Overlapping transmission of two or more Ethernet nodes onto media. All data is

unusable. Both cease transmitting and restart at random intervals.

connectionless

communications

A form of packet-switching that relies on global addresses in each packet rather than on predefined virtual circuits.

connection-oriented

communications

A form of packet-switching that requires a predefined circuit from source to destination to be established before data can be transferred.

74 GLOSSARY

CSMA/CD Carrier Sense Multiple Access with Collision Detection. This is the way that

Ethernet works. Ethernet nodes listen for transmissions by other nodes, then transmit when they believe it is quiet. Collisions are possible. If nodes detect that their transmission has collided with another transmission, both back off and begin the process again. This all occurs in milliseconds.

enterprise network A large network that connects most major points in a company. Differs from a

WAN in that it is typically private and contained within a single organization.

Ethernet A CSMA/CD, 10 Mbps, local area data network technology, developed by Digital

Equipment Corporation, Xerox Corporation, and Intel. It and its derivatives, Fast Ethernet and Gigabit Ethernet, are the most popular baseband LAN technologies in use today. A written standard is available from the IEEE.

Fast Ethernet A 100 Mbps local area data network technology that was developed a few years

after Ethernet to meet increased bandwidth requirements from customers. To give customers flexibility, equipment vendors like SMC often design ports to support either 10 Mbps or 100 Mbps Ethernet connections. A written standard is available from the IEEE.

fault-tolerant The ability to prevent a device or network from failing by supplying a backup

component or link to take over in case of failure. For example, the reserve power of an extra power supply in a single device can prevent the device from failing if the primary power supply fails. Another example could be an extra link in a network that is inactive until the primary link fails or reaches capacity.

Gigabit Ethernet A 1000 Mbps local area data network technology that was developed a few years

after Fast Ethernet. It is compatible with existing 10/100 Ethernet standards.

The IEEE, with the help of the Gigabit Ethernet Alliance, defines the standard for full duplex over fiber-optic cable and short-haul copper cable.

hot swapping A feature that allows specified components to be removed and replaced while the

device is powered up and continues to operate normally.

IEEE 802.3 The IEEE LAN protocol standard that specifies an implementation of the physical

layer and the MAC sublayer of the data link layer. IEEE 802.3 uses CSMA/CD access at a variety of speeds over a variety of physical media. Extensions to the IEEE 802.3 standard specify implementations for Fast Ethernet and Gigabit Ethernet.

IGMP Internet Group Management Protocol. A multicast protocol that operates between

routers or switches and their attached hosts to allow a host to inform its local router or switch that it wants to receive transmissions addressed to a specific multicast group. Based on group membership information that is learns from IGMP, a router can determine which, if any, multicast traffic needs to be forwarded to each of its “leaf” subnetworks.

in-band Transmission of information (for example, device management commands or

requests) over the same network media that carries user traffic. Contrasts with out-of-band.

Internet Protocol (IP) The protocol that governs packet forwarding within the Transmission Control

Protocol/Internet Protocol (TCP/IP) suite of standards that was developed for and is used on the Internet and in local area networks.

GLOSSARY 75

interoperability The ability of computer equipment from one vendor to communicate and

exchange information with equipment from other vendors.

IP address Internet Protocol address. A unique identity for a machine that is attached to a

network that consists of two or more interconnected local area or wide area networks.

LAN Local Area Network. A data communications network that spans a limited

geographical area, such as a single building or campus. It provides communication between computers and peripherals. LANs have small geographical size, high data rate, and low error rate.

Layer 2 Data-link layer of the OSI Reference Model. Defines the rules for sending and

receiving data across the physical connection between two systems.

Layer 3 Network layer of the OSI Reference Model. Defines protocols for routing data by

opening and maintaining a path on the network between systems to ensure that data arrives at the correct destination node.

LED Light emitting diode. Semiconductor device that emits light produced by

converting electrical energy. Status lights on hardware devices are typically LEDs.

local management Issuing commands to a network device using a terminal or PC with terminal

emulation software that is directly connected to the device. Contrasts with remote management, where commands travel from a remote PC over a network to the device.

MIB Management Information Base. A database of network management information

that describes specific aspects of individual network components.

MMF Multimode fiber. An optical fiber with a core diameter of from 50 to 100 microns.

It is the most commonly used optical fiber for short distances. Light can enter the core at different angles, making it easier to connect the light source. However, light rays bounce around within the core, which can cause some distortion and thus provide less bandwidth than singlemode fiber.

modem Modulator/demodulator. The device that converts serial digital data from a

transmitting terminal to a signal suitable for transmission over a telephone (analog) channel. At the other end, another modem converts the analog signal to digital data for use by the computers.

multicast A special form of broadcast where copies of the packet are delivered only to a

subset of all possible destinations. Delivery is based on membership to a specific multicast group. Hosts can use the IGMP protocol to signal membership requests to switches or routers. Routers use various multicast routing protocols to build delivery trees.

multiplexing A function within a layer that interleaves the information from multiple

connections into one connection.

OSPF Open Shortest Path First. Interior Gateway Protocol for TCP/IP networks; uses the

Dijkstra algorithm, a link-state routing algorithm that calculates routes for packets based on a number of factors, including least hops, speed of transmission lines, and congestion delays.

76 GLOSSARY

out-of-band Transmission of information, for example, device management messages, over a

RJ-45 connector A connector that holds up to eight copper wires and is similar in design to the

medium that is not accessed by network users.

packet Any logical block of data that is sent over a network. It contains a header that

consists of control information such as senders, receivers, and error control data, as well as the message itself.

protocol A set of rules for communicating between computers. The rules dictate format,

timing, sequencing, and error control.

PDU Protocol Data Unit. A unit of data that is specified in a layer protocol and consists

of protocol control information and layer user data.

QoS Quality of Service. Term to describe delay, throughput, bandwidth, and so forth of

a virtual connection; a measure of the service quality that is provided to a user.

RIP Routing Information Protocol. The RIP protocol seeks to find the shortest route to

another device by minimizing the distance-vector, or hop count, which serves as a rough estimate of transmission cost. RIP-2 is a compatible upgrade to RIP. It adds useful capabilities for subnet routing, authentication, and multicast transmissions.

RJ-11 standard telephone connector. RJ-45 connectors are often featured on Ethernet devices.

router A device that connects two dissimilar networks by selectively forwarding messages

between them. A router operates at Layer 3 in the OSI Reference Model. A router is similar in operation to a Layer 3 switch.

RS-232 serial port A port that changes the parallel arrangement of data within computers to the

serial (one after the other) form used on data transmission links. This type of port can be used for local management access of a network device.

SC connector A fiber-optic cable connector that uses a push-pull latching mechanism similar to

common audio and video cables. For bi-directional transmission, two fiber cables and two SC connectors are generally used.

server A computer that provides clients with file storage, software applications, or other

network services. One server is usually shared by multiple users.

SNMP Simple Network Management Protocol. A protocol that was originally designed to

be used in managing TCP/IP internets is now the de facto standard for managing LANs. A network manager uses a remote PC or UNIX workstation to operate SNMP-based software that communicates with network devices that have SNMP agents built into them. These agents collect information about network activity and device status and send it back to the workstation.

spanning tree A technique that detects network loops, or multiple paths to the same destination,

and logically blocks the redundant paths until they are needed. One of the most popular examples of the spanning tree approach is included in the IEEE 802.1D standard for MAC bridges. Bridges that support the Spanning Tree Protocol work with each other to ensure that only one route exists between any two LANs. This action prevents a debilitating network condition known as a broadcast storm, where the same packets are repeated and multiplied to the point where LAN bandwidth is totally clogged and legitimate traffic cannot get through.

GLOSSARY 77

star-wired LAN topology in which end points on a network are connected to a common

central switch or repeater by point-to-point links. Ethernet networks often use the star topology. A ring topology that is organized as a star, such as Token Ring, implements a unidirectional closed-loop star, instead of point-to-point links.

topology The physical or logical placement of stations on a network in relation to one

another.

torque The amount of force exerted to tighten a screw, bolt, or nut.

twisted pair Two insulated copper wires that are wrapped around each other for protection

against interference. Each wire is insulated, and the pair is usually covered by an overall casing. This type of wiring is often used in Ethernet network infrastructures, sometimes called cable plants.

UTP Unshielded Twisted Pair. Common, phone-grade, twisted pair wiring that is not

provided with a protective shielding against outside interference. Contrasts with STP, or shielded twisted pair.

WAN Wide Area Network. A data communications network that spans very large

geographical areas.

VLAN Virtual LAN. A logical association that allows users to communicate as if they were

physically connected to a single LAN, independent of the actual physical configuration of the network.

wiring closet An area in a building that is used for wiring networking devices and telephone

communication systems.

78 GLOSSARY

INDEX

ambient temperature, maximum 20

Backplane architecture 18

cable management 20, 31 Cable management device

installing in a rack 27

chassis

fan tray 41 modules 48 power supply 35 regulatory compliance 24 regulatory compliances 24 specifications

power 22 clearance, chassis in rack 20 conventions

notice icons, About This Guide 11 text, About This Guide 11

country requirements, power 22

Fast Ethernet 53 Gigabit Ethernet 57

laser and LED warnings 23 LEDs

Fast Ethernet Interface Modules 56 Gigabit Ethernet Interface

Modules 60

Network Mgmt Module 50

Minimum requirements for normal

operation 16

modules 15

troubleshooting 69

online technical services 71

pinouts

10BASE-T (MDI) port 54, 57 console cable 51 console port 51

power

cords 35

requirements 22 Power supplies 13 power supply

installing and removing 33

ventilation requirements 20

warnings

fiber-optic 23

safety 24 warranty i weight 19 width 19

depth 19 dimensions 19 distance guidelines

100BASE-LX cable 58

fan tray 41

installing and removing 41 Fast Ethernet Interface Modules 53 fiber-optic warnings 23

GBIC transceivers 67 Gigabit Ethernet Interface Modules 57

hot insert 63 hot swap 63 humidity specifications 20

Installing the cable tray

rack-mount installation 27 interface modules

rack installation 21

space needed 21 redundant power supplies 13 regulatory compliance 24 RS-232

9-pin-to-25-pin cable pinout 51

9-pin-to-9-pin cable pinout 51

safety

standards supported 24 Safety precautions 21, 22, 26 to 27 Switch backplane architecture 18 Switch elements 15 Switch modules 15 Switch setup 13

technical support 71

network suppliers 71 temperature specifications 20 torque specification for screws 21 troubleshooting

modules 69

power supply 39

2 INDEX

FOR TECHNICAL SUPPORT, CALL:

From U.S.A. and Canada (24 hours a day, 7 days a week)

(800) SMC-4-YOU; (949) 679-8000; Fax: (949) 679-1481

From Europe (8:00 AM - 5:30 PM UK Time)

44 (0) 118 974 8700; Fax: 44 (0) 118 974 8701

INTERNET

E-mail addresses:

techsupport@smc.com european.techsupport@smc-europe.com

Driver updates:

http://www.smc.com/index.cfm?action=tech support drivers downloads

World Wide Web:

http://www.smc.com/ http://www.smc-europe.com/

FOR LITERATURE OR ADVERTISING RESPONSE, CALL:

U.S.A. and Canada: (800) SMC-4-YOU; Fax (949) 679-1481 Spain: 34-93-477-4935; Fax 34-93-477-3774 UK: 44 (0) 118 974 8700; Fax 44 (0) 118 974 8701 France: 33 (0) 41 38 32 32; Fax 33 (0) 41 38 01 58 Italy: 39 02 739 12 33; Fax 39 02 739 14 17 Benelux: 31 33 455 72 88; Fax 31 33 455 73 30 Central Europe: 49 (0) 89 92861-0; Fax 49 (0) 89 92861-230 Switzerland: 41 (0) 1 9409971; Fax 41 (0) 1 9409972 Nordic: 46 (0) 868 70700; Fax 46 (0) 887 62 62 Northern Europe: 44 (0) 118 974 8700; Fax 44 (0) 118 974 8701 Eastern Europe: 34 -93-477-4920; Fax 34 93 477 3774 Sub Saharan Africa: 27-11 314 1133; Fax 27-11 314 9133 North Africa: 34 93 477 4920; Fax 34 93 477 3774 Russia: 7 (095) 290 29 96; Fax 7 (095) 290 29 96 PRC: 86-10-6235-4958; Fax 86-10-6235-4962 Taiwan: 886-2-2659-9669; Fax 886-2-2659-9666 Asia Pacific: (65) 238 6556; Fax (65) 238 6466 Korea: 82-2-553-0860; Fax 82-2-553-7202 Japan: 81-45-224-2332; Fax 81-45-224-2331 Australia: 61-2-9416-0437; Fax 61-2-9416-0474 India: 91-22-8204437; Fax 91-22-8204443

If you are looking for further contact information, please visit www.smc.com or www.smc-europe.com.

38 Tesla Irvine, CA 92618 Phone: (949) 679-8000

Model Numbers: SMC9712G Publication Number: 150200008900A Revision Number: F1.1 E012002-R01

Smc 9712G INSTALLATION GUIDE

Specifications and Main Features

Frequently Asked Questions

User Manual

ABOUT THIS GUIDE

Audience Definition This guide is intended for network administrators who are responsible for

Conventions Table 1 and Table 2 list conventions that are used throughout this guide.

Related Documentation The SMC9712G documentation set includes the following documents:

SETTING UP YOUR SMC9712G

OVERVIEW OF THE SMC9712G

■ Product Overview

Physical Description A SMC9712G chassis can contain:

Building a System You can build a complete system from component items that are ordered

Servicing a System For service spares purposes, all component items such as fan trays, power supplies,

Switch Backplane Architecture

■ Physical Specifications

Environmental Specifications

Ventilation Requirements

Location Requirements

Power Requirements This section outlines the power requirements for the SMC9712G 300-watt AC

Power Cords One power cord per power supply is required. If you have two power supplies

Safety Information This section lists warning notices to read before you install the SMC9712G and its

Laser Warning

FDA Class 1 Laser Device

LED Warning

Regulatory Compliance

SMC9712G CHASSIS

■ Overview

Preinstallation Guidelines

Safety Precautions Read this section before you begin to install the SMC9712G chassis.

■ Rack Installation

Installing the Cable Management Device

SMC9712G POWER SUPPLIES

Power Supply Features

AC and DC LEDs When the power supply, power cord, and power source are all functioning

No ON/OFF Switch There is no ON/OFF button on power supplies or anywhere on the SMC9712G

Power Cords The type of power cord that is used to connect a power supply to a mains outlet

Autosensing Capability SMC9712G power supplies have autosensing capability. This means that each

Maintenance Ensure that the immediate area around the SMC9712G is free from dust or small

If Failure Occurs If a power supply failure occurs and a second power supply is installed, Switch

Hot Swap If you have two power supplies installed and at least one is operating normally,

Installing a Power Supply

Removing a Power Supply

Troubleshooting a Power Supply

Intermittent Operation If the chassis powers off after running for a period of time, check for loose power

Power Supply Failure There are no user-serviceable parts on a power supply. Do not disassemble a

SMC9712G FAN TRAYS

■ Fan Tray Description

Normal Operation Two fan trays with a total of four functioning fans must be installed and operating

Maintenance Ensure that the ambient environment for the Switch remains within the

If Failure Occurs If one or both of the fans in a fan tray fails or operates intermittently, remove and

Hot Swap You can remove or install a fan tray while the Switch is powered on. This activity is

Removing a Fan Tray 43

Installing a Fan Tray To install a new fan tray in the SMC9712G chassis, follow these steps:

Troubleshooting a Fan Tray

Network Management Module Overview

Network Functions The Network Management Module includes a Network that serves as the central

Management Functions The Network Management Module exchanges information with all modules

Installation If you install two Network Management Modules (in slot M1 and M2), your system

The Failover Process If you remove (deinstall) the primary NMM or if the module fails in some way, the

Connectivity Rules The following connectivity rules apply after you establish NMM redundancy:

Interface Module Overview

Traffic Handling Each interface module learns addresses of locally attached devices and maintains a

Hot Swap All Fast Ethernet and Gigabit Ethernet Interface Modules support hot swapping,

Fast Ethernet Interface Modules

Gigabit Ethernet Interface Modules

Installing a Module 61

Safety Precautions When you handle components for a SMC9712G, be sure that you follow all safety

ESD Safety Information

Handling Precautions When you handle the module, follow these precautions:

Installation Prerequisites Before you install a module, make the following preparations:

Slot Restrictions

Removing a Module To remove a Network Management Module or interface module from the

GBIC Transceivers 67

Compatible Transceivers The following transceivers are compatible with the SMC9712G GBIC Interface

Troubleshooting Modules

TECHNICAL SUPPORT

Online Technical Services

Support from Your Network Supplier

■ World Wide Web site