Smc 6248M Installation Guide

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TigerStack 10/100

48-Port 10/100Mbps Stackable Managed Switch

◆ 48 auto-MDI/MDI-X 10BASE-T/100BASE-TX ports

◆ 2 Gigabit RJ-45 ports shared with 2 SFP transceiver slots

◆ 2 Gigabit stacking ports that act as Ethernet ports in

standalone mode

◆ Stacks up to 4 units

◆ 17.6 Gbps of aggregate bandwidth

◆ Non-blocking switching architecture

◆ Spanning Tree Protocol and Rapid STP

◆ Up to four LACP or static 8-port trunks

◆ RADIUS and TACACS+ authentication

◆ Rate limiting for bandwidth management

◆ CoS support for four-level priority

◆ Full support for VLANs with GVRP

◆ IP Multicasting with IGMP Snooping

◆ Manageable via console, Web, SNMP/RMON

Installation Guide

SMC6248M

TigerStack 10/100 Installation Guide

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

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

February 2005

Pub. # 150000017100H

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 EZ Switch, TigerStack and TigerSwitch are trademarks 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 customer 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.

ARRANTY

IMITED WARRANTY

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.

SMC Networks, Inc.

38 Tesla

Irvine, CA 92618

OMPLIANCES

FCC - Class A

This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart B of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user, at his own expense, will be required to take whatever measures may be required to correct the interference. You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment.

You may use unshielded twisted-pair (UTP) cable for RJ-45 connections—Category 3 or greater for 10 Mbps connections, Category 5 or greater for 100 Mbps connections and Category 5, 5e or 6 for 1000 Mbps connections. Use 50/125 or 62.5/125 micron multimode fiber optic cable, or 9/125 micron single-mode cable, for SFP transceiver connections.

War ni ngs : 1. Wear an anti-static wrist strap or take other suitable measures to prevent elec-

trostatic discharge when handling this equipment.

2. When connecting this switch to a power outlet, connect the field ground lead on the tri-pole power plug to a valid earth ground line to prevent electrical hazards.

Industry Canada - Class A

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled “Digital Apparatus,” ICES-003 of the Department of Communications.

Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux appareils numériques de Classe A prescrites dans la norme sur le matériel brouilleur: “Appareils Numériques,” NMB-003 édictée par le ministère des Communications.

Japan VCCI Class A

iii

OMPLIANCES

CE Mark Declaration of Conformance for EMI and Safety (EEC)

SMC contact for these products in Europe is:

SMC Networks Europe, Edificio Conata II, Calle Fructuós Gelabert 6-8, 2 08970 - Sant Joan Despí, Barcelona, Spain.

This information technology equipment complies with the requirements of the Council Directive 89/336/EEC on the Approximation of the laws of the Member States relating to Electromagnetic Compatibility and 73/23/EEC for electrical equipment used within certain voltage limits and the Amendment Directive 93/68/EEC. For the evaluation of the compliance with these Directives, the following standards were applied:

, 4a,

RFI Emission:

Immunity:

LVD:

War ni ng:

Attention: Les raccordeurs ne sont pas utilisés pour le système téléphonique!

• Limit class A according to EN 55022:1998

• Limit class A for harmonic current emission according to EN 61000-3-2/ 1995

• Limitation of voltage fluctuation and flicker in low-voltage supply system according to EN 61000-3-3/1995

• Product family standard according to EN 55024:1998

• Electrostatic Discharge according to EN 61000-4-2:1995 (Contact Discharge: ±4 kV, Air Discharge: ±8 kV)

• Radio-frequency electromagnetic field according to EN 61000-4-3:1996 (80 - 1000 MHz with 1 kHz AM 80% Modulation: 3 V/m)

• Electrical fast transient/burst according to EN 61000-4-4:1995 (AC/DC power supply: ±1 kV, Data/Signal lines: ±0.5 kV)

• Surge immunity test according to EN 61000-4-5:1995 (AC/DC Line to Line: ±1 kV, AC/DC Line to Earth: ±2 kV)

• Immunity to conducted disturbances, Induced by radio-frequency fields: EN 61000-4-6:1996 (0.15 - 80 MHz with 1 kHz AM 80% Modulation: 3 V/m)

• Power frequency magnetic field immunity test according to EN 61000-4-8:1993 (1 A/m at frequency 50 Hz)

• Voltage dips, short interruptions and voltage variations immunity test according to EN 61000-4-11:1994 (>95% Reduction @10 ms, 30% Reduction @500 ms, >95% Reduction @5000 ms)

• EN60950:2000

Do not plug a phone jack connector in the RJ-45 port. This may damage this device.

OMPLIANCES

Safety Compliance

Warning: Fiber Optic Port Safety

CLASS I

LASER DEVICE

When using a fiber optic port, never look at the transmit laser while it is powered on. Also, never look directly at the fiber TX port and fiber cable ends when they are powered on.

Avertissment: Ports pour fibres optiques - sécurité sur le plan optique

DISPOSITIF LASER

DE CLASSE I

Ne regardez jamais le laser tant qu’il est sous tension. Ne regardez jamais directement le port TX (Transmission) à fibres optiques et les embouts de câbles à fibres optiques tant qu’ils sont sous tension.

Warnhinweis: Faseroptikanschlüsse - Optische Sicherheit

LASERGER DER KLASSE I

Niemals ein Übertragungslaser betrachten, während dieses

ÄT

eingeschaltet ist. Niemals direkt auf den Faser-TX-Anschluß und auf die Faserkabelenden schauen, während diese eingeschaltet sind.

Power Cord Safety

Please read the following safety information carefully before installing the switch:

WA RN I NG

• The unit must be connected to an earthed (grounded) outlet to comply with international

• Do not connect the unit to an A.C. outlet (power supply) without an earth (ground)

• The appliance coupler (the connector to the unit and not the wall plug) must have a

• The socket outlet must be near to the unit and easily accessible. You can only remove power

• This unit operates under SELV (Safety Extra Low Voltage) conditions according to

Installation and removal of the unit must be carried out by qualified personnel only.

safety standards.

connection.

configuration for mating with an EN 60320/IEC 320 appliance inlet.

from the unit by disconnecting the power cord from the outlet.

IEC 60950. The conditions are only maintained if the equipment to which it is connected also operates under SELV conditions.

France and Peru only

This unit cannot be powered from IT† supplies. If your supplies are of IT type, this unit must be powered by 230 V (2P+T) via an isolation transformer ratio 1:1, with the secondary connection point labelled Neutral, connected directly to earth (ground).

†

Impédance à la terre

OMPLIANCES

Important!

label on the cable) against the following:

Power Cord Set

U.S.A. and Canada The cord set must be UL-approved and CSA certified.

Denmark The supply plug must comply with Section 107-2-D1, Standard

Switzerland The supply plug must comply with SEV/ASE 1011.

U.K. The supply plug must comply with BS1363 (3-pin 13 A) and be fitted

Europe The supply plug must comply with CEE7/7 (“SCHUKO”).

Before making connections, make sure you have the correct cord set. Check it (read the

The minimum specifications for the flexible cord are:

- No. 18 AWG - not longer than 2 meters, or 16 AWG.

- Type SV or SJ

- 3-conductor

The cord set must have a rated current capacity of at least 10 A

The attachment plug must be an earth-grounding type with NEMA 5-15P (15 A, 125 V) or NEMA 6-15P (15 A, 250 V) configuration.

DK2-1a or DK2-5a.

with a 5 A fuse which complies with BS1362.

The mains cord must be <HAR> or <BASEC> marked and be of type HO3VVF3GO.75 (minimum).

IEC-320 receptacle.

Veuillez lire à fond l'information de la sécurité suivante avant d'installer le Switch:

AVERTISSEMENT:

qualifié.

• Ne branchez pas votre appareil sur une prise secteur (alimentation électrique) lorsqu'il n'y a pas de connexion de mise à la terre (mise à la masse).

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

• Le coupleur d’appareil (le connecteur du groupe et non pas la prise murale) doit respecter configuration qui permet un branchement sur une entrée d’appareil EN 60320/IEC

• La prise secteur doit se trouver à proximité de l’appareil et son accès doit être facile. Vous ne pouvez mettre l’appareil hors circuit qu’en débranchant son cordon électrique au niveau de cette prise.

• L’appareil fonctionne à une tension extrêmement basse de sécurité qui est conforme à la norme IEC 60950. Ces conditions ne sont maintenues que si l’équipement auquel il est raccordé fonctionne dans les mêmes conditions.

L’installation et la dépose de ce groupe doivent être confiés à un personnel

une

320.

OMPLIANCES

France et Pérou uniquement:

Ce groupe ne peut pas être alimenté par un dispositif à impédance à la terre. Si vos alimentations sont du type impédance à la terre, ce groupe doit être alimenté par une tension de 230 V (2 P+T) par le biais d’un transformateur d’isolement à rapport 1:1, avec un point secondaire de connexion portant l’appellation Neutre et avec raccordement direct à la terre (masse).

Cordon électrique - Il doit être agréé dans le pays d’utilisation

Etats-Unis et Canada:

Danemark: La prise mâle d’alimentation doit respecter la section 107-2 D1 de la

Suisse: La prise mâle d’alimentation doit respecter la norme SEV/ASE 1011.

Europe La prise secteur doit être conforme aux normes CEE 7/7

Le cordon doit avoir reçu l’homologation des UL et un certificat de la CSA.

Les spécifications minimales pour un cable flexible sont AWG No. 18, ouAWG No. 16 pour un cable de longueur inférieure

- type SV ou SJ

- 3 conducteurs

Le cordon doit être en mesure d’acheminer un courant nominal d’au moins 10 A.

La prise femelle de branchement doit être du type à mise à la terre (mise à la masse) et respecter la configuration NEMA 5-15P (15 A, 125 V) ou NEMA 6-15P (15 A, 250 V).

norme DK2 1a ou DK2 5a.

(“SCHUKO”) LE cordon secteur doit porter la mention <HAR> ou <BASEC> et

doit être de type HO3VVF3GO.75 (minimum).

2 métres.

Bitte unbedingt vor dem Einbauen des Switches die folgenden Sicherheitsanweisungen durchlesen:

WARNUNG:

• Das Gerät sollte nicht an eine ungeerdete Wechselstromsteckdose angeschlossen werden.

• Das Gerät muß an eine geerdete Steckdose angeschlossen werden, welche die internationalen Sicherheitsnormen erfüllt.

• Der Gerätestecker (der Anschluß an das Gerät, nicht der Wandsteckdosenstecker) muß einen gemäß EN 60320/IEC 320 konfigurierten Geräteeingang haben.

• Die Netzsteckdose muß in der Nähe des Geräts und leicht zugänglich sein. Die Stromversorgung des Geräts kann nur durch Herausziehen des Gerätenetzkabels aus der Netzsteckdose unterbrochen werden.

• Der Betrieb dieses Geräts erfolgt unter den SELV-Bedingungen (Sicherheitskleinstspannung) gemäß IEC 60950. Diese Bedingungen sind nur gegeben, wenn auch die an das Gerät angeschlossenen Geräte unter SELV-Bedingungen betrieben werden.

Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen.

vii

OMPLIANCES

Stromkabel. Dies muss von dem Land, in dem es benutzt wird geprüft werden:

Schweiz Dieser Stromstecker muß die SEV/ASE 1011Bestimmungen

Europe Das Netzkabel muß vom Typ HO3VVF3GO.75

einhalten.

(Mindestanforderung) sein und die Aufschrift <HAR> oder <BASEC> tragen.

Der Netzstecker muß die Norm CEE 7/7 erfüllen (”SCHUKO”).

Warnings and Cautionary Messages

Warning: This product does not contain any serviceable user parts.

Warning: Installation and removal of the unit must be carried out by qualified personnel

Warning: When connecting this device to a power outlet, connect the field ground lead

Warning: This switch uses lasers to transmit signals over fiber optic cable. The lasers are

Caution: Wear an anti-static wrist strap or take other suitable measures to prevent

Caution: Do not plug a phone jack connector in the RJ-45 port. This may damage this

Caution: Use only twisted-pair cables with RJ-45 connectors that conform to FCC

only.

on the tri-pole power plug to a valid earth ground line to prevent electrical hazards.

compliant with the requirements of a Class 1 Laser Product and are inherently eye safe in normal operation. However, you should never look directly at a transmit port when it is powered on.

electrostatic discharge when handling this equipment.

device. Les raccordeurs ne sont pas utilisé pour le système téléphonique!

standards.

Warnin gs (in German)

Achtung: Dieses Produkt enthält keine Teile, die eine Wartung vom Benutzer benötigen.

Achtung: Installation und Deinstallation des Gerätes müssen von qualifiziertem

Achtung: Wenn das Gerät an eine Steckdose angeschlossen wird, muß der Masseanschluß

Achtung: Dieses Gerät nutzt Laser zur Signalübertragung über Glasfasern. Die Laser

Servicepersonal durchgeführt werden.

am dreipoligen Netzstecker mit Schutzerde verbunden werden, um elektrische Gefahren zu vermeiden.

entsprechen den Anforderungen an eine Lasereinrichtung der Klasse 1 und sind durch ihre Bauart im normalen Betrieb sicher für die Augen. Trotzdem sollte niemals direkt in den einen Übertragungskanal geblickt werden, wenn er eingeschaltet ist.

viii

OMPLIANCES

Environmental Statement

The manufacturer of this product endeavours to sustain an environmentally-friendly policy throughout the entire production process. This is achieved though the following means:

• Adherence to national legislation and regulations on environmental production standards.

• Conservation of operational resources.

• Waste reduction and safe disposal of all harmful un-recyclable by-products.

• Recycling of all reusable waste content.

• Design of products to maximize recyclables at the end of the product’s life span.

• Continual monitoring of safety standards.

End of Product Life Span

This product is manufactured in such a way as to allow for the recovery and disposal of all included electrical components once the product has reached the end of its life.

Manufacturing Materials

There are no hazardous nor ozone-depleting materials in this product.

Documentation

All printed documentation for this product uses biodegradable paper that originates from sustained and managed forests. The inks used in the printing process are non-toxic.

Purpose

This guide details the hardware features of the switch, including its physical and performance-related characteristics, and how to install the switch.

Audience

The guide is intended for use by network administrators who are responsible for installing and setting up network equipment; consequently, it assumes a basic working knowledge of LANs (Local Area Networks).

Diese Anleitung ist f Installation und das einstellen von Netzwerkkomponenten verantwortlich sind; sie setzt Erfahrung bei der Arbeit mit LANs (Local Area Networks) voraus.

ür die Benutzung durch Netzwerkadministratoren vorgesehen, die für die

Related Publications

The following publication gives specific information on how to operate and use the management functions of the switch:

The SMC6248M Management Guide

Also, as part of the switch’s firmware, there is an online web-based help that describes all management related features.

OMPLIANCES

ABLE OF

ONTENTS

1 About the TigerStack 10/100 . . . . . . . . . . . . . . . . . . . . . 1-1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Switch Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Network Management Options . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Description of Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

10BASE-T/100BASE-TX Ports . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1000BASE-T/SFP Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Stacking Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Port and System Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Power Supply Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Expandability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

2 Network Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Introduction to Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Application Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Collapsed Backbone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Network Aggregation Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Remote Connections with Fiber Cable . . . . . . . . . . . . . . . . . . . . 2-4

Making VLAN Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

3 Installing the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Selecting a Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Ethernet Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Equipment Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Optional Rack-Mounting Equipment . . . . . . . . . . . . . . . . . . . . . 3-3

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Desktop or Shelf Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

ABLE OF CONTENTS

Installing an Optional SFP Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Connecting Switches in a Stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Stacking Topologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Connecting to a Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Connecting to the Console Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Wiring Map for Serial Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

4 Making Network Connections . . . . . . . . . . . . . . . . . . . 4-1

Connecting Network Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Twisted-Pair Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Cabling Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Connecting to PCs, Servers, Hubs and Switches . . . . . . . . . . . . 4-2

Network Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Fiber Optic SFP Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Connectivity Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

1000BASE-T Cable Requirements . . . . . . . . . . . . . . . . . . . . . . . 4-6

1000 Mbps Gigabit Ethernet Collision Domain . . . . . . . . . . . . . 4-6

100 Mbps Fast Ethernet Collision Domain . . . . . . . . . . . . . . . . 4-7

10 Mbps Ethernet Collision Domain . . . . . . . . . . . . . . . . . . . . . 4-7

Cable Labeling and Connection Records . . . . . . . . . . . . . . . . . . . . . . . . 4-8

xii

ABLE OF CONTENTS

APPENDICES:

A Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Diagnosing Switch Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Diagnosing Power Problems with the LEDs . . . . . . . . . . . . . . . A-2

Power and Cooling Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

In-Band Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Stack Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

B Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1

Twisted-Pair Cable and Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . B-1

10BASE-T/100BASE-TX Pin Assignments . . . . . . . . . . . . . . . . B-2

Straight-Through Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Crossover Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

1000BASE-T Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . B-5

Cable Testing for Existing Category 5 Cable . . . . . . . . . . . . . . . B-5

Fiber Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6

C Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1

Physical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Switch Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

Management Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Compliances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

D Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Glossary

Index

xiii

ABLES

Table 1-1 Port Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Table 1-2 System Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Table 3-1 Serial Cable Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Table 4-1 Maximum 1000BASE-T Gigabit Ethernet Cable Length . . 4-6 Table 4-2 Maximum 1000BASE-SX Gigabit Ethernet Cable Lengths 4-6 Table 4-4 Maximum 1000BASE-ZX Gigabit Ethernet Cable Length 4-7

Table 4-5 Maximum Fast Ethernet Cable Length . . . . . . . . . . . . . . . . 4-7

Table 4-6 Maximum Ethernet Cable Length . . . . . . . . . . . . . . . . . . . . 4-7

Table 4-3 Maximum 1000BASE-LX Gigabit Ethernet Cable Length 4-7

Table A-1 Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Table A-2 Power/RPU LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2

Table B-1 10/100BASE-TX MDI and MDI-X Port Pinouts . . . . . . . B-2

Table B-2 1000BASE-T MDI and MDI-X Port Pinouts . . . . . . . . . . . B-5

Table D-1 TigerStack 10/100 Products and Accessories . . . . . . . . . . .D-1

xiv

IGURES

Figure 1-1 Front and Rear Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Figure 1-2 Stacking Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Figure 1-3 Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Figure 1-4 System LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Figure 1-5 Power Supply Receptacles . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Figure 2-1 Collapsed Backbone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Figure 2-2 Network Aggregation Plan . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Figure 2-3 Remote Connections with Fiber Cable . . . . . . . . . . . . . . 2-4

Figure 2-4 Making VLAN Connections . . . . . . . . . . . . . . . . . . . . . . . 2-5

Figure 3-1 RJ-45 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Figure 3-2 Attaching the Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Figure 3-3 Installing the Switch in a Rack . . . . . . . . . . . . . . . . . . . . . 3-5

Figure 3-4 Attaching the Adhesive Feet . . . . . . . . . . . . . . . . . . . . . . . 3-7

Figure 3-5 Installing an SFP Transceiver into a Slot . . . . . . . . . . . . . 3-8

Figure 3-6 Connecting Switches in a Ring-topology Stack . . . . . . . 3-10

Figure 3-7 Power Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Figure 3-8 Serial Port (DB-9 DTE) Pin-Out . . . . . . . . . . . . . . . . . . 3-13

Figure 4-1 Making Twisted-Pair Connections . . . . . . . . . . . . . . . . . . 4-2

Figure 4-2 Network Wiring Connections . . . . . . . . . . . . . . . . . . . . . . 4-3

Figure 4-3 Making Fiber Port Connections . . . . . . . . . . . . . . . . . . . . 4-5

Figure B-1 RJ-45 Connector Pin Numbers . . . . . . . . . . . . . . . . . . . . B-1

Figure B-2 Straight-through Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Figure B-3 Crossover Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

IGURES

xvi

HAPTER

BOUT THE

IGERSTACK

10/100

Overview

SMC’s TigerStack SMC6248M is a stackable Fast Ethernet switch with 48

10BASE-T/100BASE-TX ports and two 1000BASE-T ports1 that operate in combination with two Small Form Factor Pluggable (SFP) transceiver slots (see Figure 1-1, Ports 49-50). The switch also provides

Gbps built-in stacking ports for connecting up to four units in a

two 1 stack. The stacking ports can also be used as normal Ethernet ports in standalone mode.

The switch includes an SNMP-based management agent embedded on the main board, which supports both in-band and out-of-band access for managing the switch stack.

The switch provides a broad range of powerful features for Layer 2 switching, delivering reliability and consistent performance for your network traffic. It brings order to poorly performing networks by segregating them into separate broadcast domains with IEEE 802.1Q compliant VLANs, and empowers multimedia applications with multicast switching and CoS services.

1. If an SFP transceiver is plugged in, the corresponding RJ-45 port is disabled for ports 49-50.

1-1

BOUT THE TIGERSTACK

10/100

System Indicators

42 43 44 45

46 47

51/Down

40 41

1000BASE-T/SFP Ports

DC 12V4.5A

Power Socket

Console Port

Port Status Indicators

16 17

14 15

8910

14 15

18 19 20 21

22 23

Stacking Ports

323334

38 39

10/100 Mbps RJ-45 Ports

Console

Redundant Power Socket

Figure 1-1 Front and Rear Panels

Switch Architecture

The SMC6248M switch employs a wire-speed, non-blocking switching fabric. This permits simultaneous wire-speed transport of multiple packets at low latency on all ports. The switch also features full-duplex capability on all

ports, which effectively doubles the bandwidth of each connection.

The switch uses store-and-forward switching to ensure maximum data integrity. With store-and-forward switching, the entire packet must be received into a buffer and checked for validity before being forwarded. This prevents errors from being propagated throughout the network.

Slave

Stack

Master

UplinkUplink

49 50

RPU

PWR

52/Up

Diag

RPU

Stack

Master

The switch includes built-in stacking ports that enable up to four units to be connected together through a 4

Gbps stack backplane. The switch stack can

be managed from a master unit using a single IP address.

2. An RPU is not yet available for this product.

1-2

ESCRIPTION OF HARDWARE

Network Management Options

The SMC6248M switch contains a comprehensive array of LEDs for “at-a-glance” monitoring of network and port status. It also includes a management agent that allows you to configure or monitor the switch using its embedded management software, or via SNMP applications. To manage the switch, you can make a direct connection to the RS-232 console port (out-of-band), or you can manage it through a network connection (in-band) using Telnet, the on-board Web agent, or SNMP-based network management software.

For a detailed description of the advanced features, refer to the Management Guide.

Description of Hardware

10BASE-T/100BASE-TX Ports

The SMC6248M contains 48 10BASE-T/100BASE-TX RJ-45 ports that operate at 10 Mbps or 100 Mbps, half or full duplex,. Because all RJ-45 ports on this switch support automatic MDI/MDI-X operation, you can use straight-through cables for all network connections to PCs or servers, or to other switches or hubs. (See

“1000BASE-T Pin Assignments” on page B-5.)

Each of these ports support auto-negotiation, so the optimum transmission mode (half or full duplex), and data rate (10 or 100 Mbps) can be selected automatically. If a device connected to one of these ports does not support auto-negotiation, the communication mode of that port can be configured manually.

Each port also supports IEEE 802.3x auto-negotiation of flow control, so the switch can automatically prevent port buffers from becoming saturated.

1-3

Slave

Stack

Master

UplinkUplink

PWR

Diag

RPU

Stack Master

51/Down

52/Up

49 50

BOUT THE TIGERSTACK

10/100

1000BASE-T/SFP Ports

The SMC6248M contains two combination Gigabit RJ-45 ports that are shared with Small Form Factor Pluggable (SFP) transceiver slots (Ports

Figure 1-1 on page 1-2). If an SFP transceiver (purchased separately)

49-50, is installed in a slot, the associated RJ-45 port is disabled. The switch can be configured to force the use of an RJ-45 port or SFP slot, as required.

The 1000BASE-T RJ-45 ports support automatic MDI/MDI-X operation, so you can use straight-through cables for all network connections to PCs or servers, or to other switches or hubs. (See

“1000BASE-T Pin Assignments”

on page B-5.)

Stacking Ports

The unit provides two stacking ports that provide a 4 Gbps stack backplane connection. Up to four switches can be connected together using Category 5 Ethernet cables (purchased separately). The Master button enables one switch in the stack to be selected as the master. This is the unit through which you manage the entire stack.

The stacking ports can also be used as normal Ethernet ports in standalone mode by pressing the Uplink button.

Master Button

Stacking Ports

Uplink Button

Figure 1-2 Stacking Ports

1-4

ESCRIPTION OF HARDWARE

Port and System Status LEDs

The SMC6248M includes a display panel for key system and port indications that simplify installation and network troubleshooting. The LEDs, which are located on the front panel for easy viewing, are shown below and described in the following tables.

Port Status LEDs

Figure 1-3 Port LEDs

Table 1-1 Port Status LEDs

LED Condition Status

Fast Ethernet Ports (Ports 1-48)

11 12

(Link/ Activity)

On/Flashing Amber

On/Flashing Green

Port has established a valid 10 Mbps network connection. Flashing indicates activity.

Port has established a valid 100 Mbps network connection. Flashing indicates activity.

Off There is no valid link on the port.

Flashing Green

When the “light unit” command is entered in the Command Line Interface, the LED corresponding to the switch’s ID will flash for about 15 seconds.

1-5

PWR

Diag

RPU

Stack Master

52/Up

BOUT THE TIGERSTACK

LED Condition Status

Gigabit Ethernet Ports (Ports 49-50, and Ports 51-52 when stacking is not implemented)

10/100

Table 1-1 Port Status LEDs

(Link/ Activity)

On/Flashing Amber

On/Flashing Green

Port has established a valid 10/100 Mbps network connection. Flashing indicates activity.

Port has established a valid 1000 Mbps network connection. Flashing indicates activity.

Off There is no valid link on the port.

System LEDs

Figure 1-4 System LEDs

1-6

Table 1-2 System Status LEDs

LED Condition Status

ESCRIPTION OF HARDWARE

PWR On Green The unit’s internal power supply is operating

On Amber The unit’s internal power supply has failed.

Off The unit has no power connected or the

Diag Flashing Green The system diagnostic test is in progress.

On Green The system diagnostic test has completed

On Amber The system diagnostic test has detected a fault.

RPU On Green A redundant power unit is attached and is in

On Amber There is a fault in the redundant power unit.

Off There is no redundant power unit currently

Stack Master Flashing Amber An initial on state during which the stack

On Green This switch is acting as the Master unit in the

On Amber This switch is acting as a Slave unit in the

Flashing Green When the user enters the light unit command

Off System in standalone mode.

normally.

power supply has failed.

successfully.

backup or active mode.

attached.

configuration is detected.

stack.

in the CLI, the unit ID of each switch in the stack will be displayed by the port LEDs 1 to

1-7

BOUT THE TIGERSTACK

10/100

Power Supply Receptacles

There are two power receptacles on the rear panel of the switch. The standard power receptacle is for the AC power cord. The receptacle labeled

“RPU” is for the optional Redundant Power Unit

RPU

12V 4.5A

100-240V~ 50-60Hz2A

Figure 1-5 Power Supply Receptacles

Features and Benefits

Connectivity

• 48 dual-speed ports for easy Fast Ethernet integration and for protection of your investment in legacy LAN equipment.

• Auto-negotiation enables each RJ-45 port to automatically select the optimum communication mode (half or full duplex) if this feature is supported by the attached device; otherwise the port can be configured manually.

• Two 1000BASE-T Gigabit Ethernet ports shared with two SFP slots.

• RJ-45 10/100BASE-TX ports support auto MDI/MDI-X.

3. An RPU is not yet available for this product.

1-8

EATURES AND BENEFITS

• Unshielded (UTP) cable supported on all RJ-45 ports: Category 3 or better for 10 connections, and Category 5, 5e or 6 for 1000 Mbps connections.

• IEEE 802.3-2002 Ethernet, Fast Ethernet, Gigabit Ethernet compliance ensures compatibility with standards-based hubs, network cards and switches from any vendor.

• Provides stacking capability via RJ-45 ports with 4 Gbps stacking bandwidth. Up to 4 units can be stacked together.

• The SMC6248M can also be stacked together with the SMC6224M 24-port switch. When combining these switches in the same stack, up to 4 units can be stacked together .

Mbps connections, Category 5 or better for 100 Mbps

Expandability

• Supports 1000BASE-SX, 1000BASE-LX, and 1000BASE-ZX SFP transceivers.

Performance

• Transparent bridging

• Aggregate duplex bandwidth of up to 17.6 Gbps

• Switching table with a total of 8K MAC address entries

• Provides store-and-forward switching

• Wire-speed filtering and forwarding

• Supports flow control, using back pressure for half duplex and IEEE

802.3x for full duplex

• Broadcast storm control

1-9

BOUT THE TIGERSTACK

10/100

Management

• “At-a-glance” LEDs for easy troubleshooting

• Network management agent:

- Manages switch in-band or out-of-band

- Supports console, Telnet, SSH, SNMP, RMON 4 groups

and web-based interface

• Slave units provide backup stack management.

1-10

HAPTER

ETWORK

LANNING

Introduction to Switching

A network switch allows simultaneous transmission of multiple packets via non-crossbar switching. This means that it can partition a network more efficiently than bridges or routers. The switch has, therefore, been recognized as one of the most important building blocks for today’s networking technology.

When performance bottlenecks are caused by congestion at the network access point (such as the network card for a high-volume file server), the device experiencing congestion (server, power user, or hub) can be attached directly to a switched port. And, by using full-duplex mode, the bandwidth of the dedicated segment can be doubled to maximize throughput.

When networks are based on repeater (hub) technology, the distance between end stations is limited by a maximum hop count. However, a switch turns the hop count back to zero. So subdividing the network into smaller and more manageable segments, and linking them to the larger network by means of a switch, removes this limitation.

A switch can be easily configured in any Ethernet, Fast Ethernet, or Gigabit Ethernet network to significantly boost bandwidth while using conventional cabling and network cards.

2-1

ETWORK PLANNING

Application Examples

The SMC6248M is not only designed to segment your network, but also to provide a wide range of options in setting up network connections. Some typical applications are described below.

Collapsed Backbone

The SMC6248M is an excellent choice for mixed Ethernet, Fast Ethernet, and Gigabit Ethernet installations where significant growth is expected in the near future. In a basic stand-alone configuration, it can provide direct full-duplex connections for up to 52 workstations or servers. You can easily build on this basic configuration, adding direct full-duplex connections to workstations or servers. When the time comes for further expansion, just connect to another switch using one of the Gigabit Ethernet ports built into the front panel or a Gigabit Ethernet port on a plug-in SFP transceiver.

In the figure below, the switch is operating as a collapsed backbone for a small LAN. It is providing dedicated 10 workstations, 100

Mbps full-duplex connections to power users, and 1 Gbps

full-duplex connections to servers.

Mbps full-duplex connections to

2-2

...

Servers

1 Gbps Full Duplex

16 17

8910

16 17

22 23

22 23 14 15

14 15

18 19 20 21

...

Workstations

100 Mbps Full Duplex

38 39

323334

40 41

46 47

42 43 44 45

51/Down

Slave

Stack

Master

UplinkUplink

49 50

PWR

52/Up

Diag

RPU

Stack

Master

...

Workstations

10 Mbps Full Duplex

Figure 2-1 Collapsed Backbone

PPLICATION EXAMPLES

Network Aggregation Plan

When used in standalone mode, this switch provides 52 parallel bridging ports (i.e., 52 distinct collision domains), which can be used to collapse a complex network down into a single efficient bridged node, increasing overall bandwidth and throughput.

When up to four switch units are stacked together, they form a single “virtual” switch containing up to 200 ports. The whole stack can be managed through the Master unit using a single IP address.

In the figure below, the 10BASE-T/100BASE-TX ports are providing 100

Mbps connectivity through stackable switches. In addition, the switches

are also connecting several servers at 1000 Mbps.

...

10/100/1000 Mbps Segments

...

Figure 2-2 Network Aggregation Plan

16 17

16 17 14 15

14 15

8910

18 19 20 21

16 17

14 15

18 19 20 21

8910

16 17

16 17 14 15

14 15

8910

18 19 20 21

16 17

14 15

8910

18 19 20 21

24 22 23

22 23

24 22 23

22 23

24 22 23

22 23

24 22 23

22 23

323334

40 41

46 47

38 39

42 43 44 45

Slave

Stack

Master

UplinkUplink

PWR

52/Up

51/Down

Diag

RPU

Stack

Master

49 50

40 41

46 47

38 39

42 43 44 45

Slave

Stack

Master

UplinkUplink

PWR

52/Up

51/Down

Diag

RPU

Stack

Master

49 50

40 41

46 47

38 39

42 43 44 45

Slave

Stack

Master

UplinkUplink

PWR

52/Up

51/Down

Diag

RPU

Stack

Master

49 50

40 41

46 47

38 39

42 43 44 45

Slave

Stack

Master

UplinkUplink

PWR

52/Up

51/Down

Diag

RPU

Stack

Server Farm

Master

49 50

...

2-3

ETWORK PLANNING

Remote Connections with Fiber Cable

Fiber optic technology allows for longer cabling than any other media type. A 1000BASE-SX (MMF) link can connect to a site up to 550 meters away, a 1000BSE-LX (SMF) link up to 5 km, and a 1000BASE-ZX link up to

km. This allows a Gigabit Ethernet stack to serve as a collapsed

100 backbone, providing direct connectivity for a widespread LAN.

A 1000BASE-SX SFP transceiver can be used for a high-speed connection between floors in the same building and a 1000BASE-LX SFP transceiver can be used for core connections between buildings in a campus setting. And for long-haul connections, a 1000BASE-ZX SFP transceiver can be used to reach another site up to 100 kilometers away.

The figure below illustrates three TigerStacks interconnecting multiple segments with fiber cable.

Headquarters

Server Farm

Remote Switch

2-4

1000BASE-SX MMF (500 meters)

8910

4041

1617

4647

2223

3839

1415

4243 44 45

1819 20 21

323334

Slave

Stack

Master

UplinkUplink

52/Up

51/Down

49 50

...

10/100/1000 Mbps Segments

Figure 2-3 Remote Connections with Fiber Cable

PWR

Diag

RPU

Stack

Master

8910

16 17

22 23

14 15

18 19 20 21

16 17

22 23

25 14 15

14 15

18 19 20 21

16 17

22 23

25 14 15

14 15

18 19 20 21

16 17

22 23

14 15

18 19 20 21

Remote Switch

8910

1617

1415

1819 20 21

323334

2223

323334

...

40 41

46 47

38 39

42 43 44 45

40 41

46 47

38 39

42 43 44 45

40 41

46 47

38 39

42 43 44 45

40 41

46 47

38 39

42 43 44 45

1000BASE-LX (5 kilometers)

4041

4647

3839

4243 44 45

Slave

Stack

Master

UplinkUplink

PWR

52/Up

51/Down

Diag

RPU

Stack

Master

49 50

Slave

Stack

Master

UplinkUplink

52/Up

51/Down

49 50

Slave

Stack

Master

UplinkUplink

52/Up

51/Down

49 50

Slave

Stack

Master

UplinkUplink

52/Up

51/Down

49 50

Slave

Stack

Master

UplinkUplink

52/Up

51/Down

49 50

PWR

Diag

RPU

Stack

Master

PWR

Diag

RPU

Stack

Master

1000BASE-LX

PWR

Diag

(5 kilometers)

RPU

Stack

Master

PWR

Diag

RPU

Stack

Master

1000BASE-ZX (100 kilometers)

Warehouse

8910

40 41

16 17

46 47

22 23

38 39

14 15

42 4344 45

18 1920 21

323334

40 41

16 17

46 47

22 23

38 39

42 4344 45

18 1920 21

323334

40 41

16 17

46 47

22 23

38 39

42 4344 45

18 1920 21

323334

40 41

16 17

46 47

22 23

38 39

42 4344 45

18 1920 21

323334

...

Research & Development

8910

40 41

16 17

46 47

22 23

38 39

14 15

323334

42 4344 45

18 1920 21

40 41

16 17

46 47

22 23

38 39

14 15

323334

42 4344 45

18 1920 21

40 41

16 17

46 47

22 23

38 39

14 15

42 4344 45

18 1920 21

323334

40 41

16 17

46 47

22 23

38 39

42 4344 45

18 1920 21

323334

...

Slave

Stack

Master

UplinkUplink

PWR

52/Up

51/Down

Diag

RPU

Stack

Master

49 50

Slave

Stack

Master

UplinkUplink

PWR

52/Up

51/Down

Diag

RPU

Stack

Master

49 50

Slave

Stack

Master

UplinkUplink

PWR

52/Up

51/Down

Diag

RPU

Stack

Master

49 50

Slave

Stack

Master

UplinkUplink

PWR

52/Up

51/Down

Diag

RPU

Stack

Master

49 50

Slave

Stack

Master

UplinkUplink

PWR

52/Up

51/Down

Diag

RPU

Stack

Master

49 50

Slave

Stack

Master

UplinkUplink

PWR

52/Up

51/Down

Diag

RPU

Stack

Master

49 50

Slave

Stack

Master

UplinkUplink

PWR

52/Up

51/Down

Diag

RPU

Stack

Master

49 50

Slave

Stack

Master

UplinkUplink

PWR

52/Up

51/Down

Diag

RPU

Stack

Master

49 50

PPLICATION EXAMPLES

Making VLAN Connections

This switch supports VLANs which can be used to organize any group of network nodes into separate broadcast domains. VLANs confine broadcast traffic to the originating group, and can eliminate broadcast storms in large networks. This provides a more secure and cleaner network environment.

VLANs can be based on untagged port groups, or traffic can be explicitly tagged to identify the VLAN group to which it belongs. Untagged VLANs can be used for small networks attached to a single switch. However, tagged VLANs should be used for larger networks, and all the VLANs assigned to the inter-switch links.

Marketing

VLAN

unaware

switch

323334

38 39

40 41

Finance

VLAN 3

42 43 44 45

Tagged Port

46 47

Slave

Stack

Master

UplinkUplink

PWR

52/Up

51/Down

Diag

RPU

Stack

Master

49 50

VLAN aware switch

R&D

Testing

VLAN 1

VLAN 2

R&D

Testing

VLAN 2

VLAN 1

Tagged

Ports

16 17

22 23

22 23 14 15

14 15

8910

18 19 20 21

Untagged Ports

Finance

VLAN 3

VLAN 4

Figure 2-4 Making VLAN Connections

Note: When connecting to a switch that does not support IEEE 802.1Q VLAN

tags, use untagged ports.

2-5

ETWORK PLANNING

Application Notes

1. Full-duplex operation only applies to point-to-point access (such as when a switch is attached to a workstation, server or another switch). When the switch is connected to a hub, both devices must operate in half-duplex mode.

2. Avoid using flow control on a port connected to a hub unless it is actually required to solve a problem. Otherwise back pressure jamming signals may degrade overall performance for the segment attached to the hub.

3. As a general rule the length of fiber optic cable for a single switched link should not exceed:

• 1000BASE-SX: 550 m (1805 ft) for multimode fiber.

• 1000BASE-LX: 5 km (3.1 miles) for single-mode fiber.

• 1000BASE-ZX: 100 km (62.14 miles) for single-mode fiber.

However, power budget constraints must also be considered when calculating the maximum cable length for your specific environment.

2-6

HAPTER

NSTALLING THE

WITCH

Selecting a Site

TigerStack units can be mounted in a standard 19-inch equipment rack or on a flat surface. Be sure to follow the guidelines below when choosing a location.

•The site should:

- be at the center of all the devices you want to link and near a power outlet.

- be able to maintain its temperature within 0 to 50 °C (32 to 122 °F) and its humidity within 5% to 95%, non-condensing

- provide adequate space (approximately five centimeters or two inches) on all sides for proper air flow

- be accessible for installing, cabling and maintaining the devices

- allow the status LEDs to be clearly visible

• Make sure twisted-pair cable is always routed away from power lines, fluorescent lighting fixtures and other sources of electrical interference, such as radios and transmitters.

• Make sure that the unit is connected to a separate grounded power outlet that provides 100 to 240 VAC, 50 to 60 Hz, is within 2 m (6.6 each device and is powered from an independent circuit breaker. As with any equipment, using a filter or surge suppressor is recommended.

feet) of

3-1

NSTALLING THE SWITCH

Ethernet Cabling

To ensure proper operation when installing the switch into a network, make sure that the current cables are suitable for 10BASE-T, 100BASE-TX or 1000BASE-T operation. Check the following criteria against the current installation of your network:

• Cable type: Unshielded twisted pair (UTP) or shielded twisted pair (STP) cables with RJ-45 connectors; Category 3 or better for 10BASE-T, Category 5 or better for 100BASE-TX, and Category 5, 5e or 6 for 1000BASE-T.

• Protection from radio frequency interference emissions

• Electrical surge suppression

• Separation of electrical wires (switch related or other) and electromagnetic fields from data based network wiring

• Safe connections with no damaged cables, connectors or shields

RJ-45 Connector

3-2

Figure 3-1 RJ-45 Connections

QUIPMENT CHECKLIST

Equipment Checklist

After unpacking the TigerStack, check the contents to be sure you have received all the components. Then, before beginning the installation, be sure you have all other necessary installation equipment.

Package Contents

• TigerStack 10/100, SMC6248M

• Four adhesive foot pads

• Bracket Mounting Kit containing two brackets and eight screws for

attaching the brackets to the switch

• Power Cord—either US, Continental Europe or UK

• RS-232 console cable

• This Installation Guide

• Management Guide

• SMC Warranty Registration Card—be sure to complete and return to

SMC

Optional Rack-Mounting Equipment

If you plan to rack-mount the switch, be sure to have the following equipment available:

• Four mounting screws for each device you plan to install in a rack—these

are not included

• A screwdriver (Phillips or flathead, depending on the type of screws used)

3-3

NSTALLING THE SWITCH

Mounting

This switch can be mounted in a standard 19-inch equipment rack or on a desktop or shelf. Mounting instructions for each type of site follow.

Rack Mounting

Before rack mounting the switch, pay particular attention to the following factors:

• Temperature: Since the temperature within a rack assembly may be higher than the ambient room temperature, check that the rack-environment temperature is within the specified operating temperature range. (

• Mechanical Loading: Do not place any equipment on top of a rack-mounted unit.

• Circuit Overloading: Be sure that the supply circuit to the rack assembly is not overloaded.

• Grounding: Rack-mounted equipment should be properly grounded. Particular attention should be given to supply connections other than direct connections to the mains.

See page C-2.)

3-4

OUNTING

To rack-mount devices:

1. Attach the brackets to the device using the screws provided in the

Bracket Mounting Kit.

Slave

Stack

Master

UplinkUplink

PWR

Diag

RPU

Stack Master

Figure 3-2 Attaching the Brackets

2. Mount the device in the rack, using four rack-mounting screws (not

provided).

Slave

Stack

Master

UplinkUplink

PWR

Diag

RPU

Stack Master

Figure 3-3 Installing the Switch in a Rack

3-5

NSTALLING THE SWITCH

3. If installing a single switch only, turn to “Connecting Switches in a

Stack” at the end of this chapter.

4. If installing multiple switches, mount them in the rack, one below the

other, in any order.

5. If also installing RPUs, mount them in the rack below the other

devices.

Montage (Rack Mounting - German)

SMC6248M SwitchArbeitstisch oder ein Regal montiert werden. Folgend finden Sie die Montageanweisungen für jeden Positionstyp.

Rack-Montage

Beachten Sie die folgenden Faktoren, bevor Sie die Rack-Montage beginnen:

• Temperatur: Da die Temperatur innerhalb einer Rackeinheit höher als die Raumumgebungstemperatur sein kann, stellen Sie bitte sicher, dass die Rackumgebungstemperatur innerhalb des angegebenen Betriebstemperaturbereichs liegt. (Siehe "Temperatur" auf Seite C-1.)

• Mechanische Last: Stellen Sie kein Gerät auf eine Rack-Montageeinheit.

• Stromüberlastung: Stellen Sie sicher, dass der Netzkreis der Rackeinheit nicht überlastet wird.

• Erdung: Die Rack-Montageeinheit muss richtig geerdet werden. Besondere Acht sollten Sie bei Verbindungen geben, die nicht direkt zum Netz führen.

So montieren Sie Geräte an ein Rack:

1. Befestigen Sie die Metallwinkel mit den im Metallwinkel-Montageset erhältlichen Schrauben an dem

Gerät.

2. Befestigen Sie das Gerät mit vier Rackmontageschrauben (nicht beigelegt) an dem Rack.

3. Wenn Sie nur einen Switch installieren, dann springen Sie bitte über zu "Verbinden mit einer

Stromquelle" auf Seite 3-9 am Ende dieses Kapitels.

4. Wenn Sie mehrere Switches installieren möchten, dann montieren Sie sie untereinander in einer

beliebigen Reihenfolge.

Einheiten können an ein standardmäßiges 19-Zoll Einrichtungsrack, einen

3-6

Desktop or Shelf Mounting

1. Attach the four adhesive feet to the bottom of the first switch.

Master Stack

RPU

Diag

PWR

52/Up

51/Down

UplinkUplink

Master

Stack

Slave

46 47

42 43 44 45

40 41

38 39

22 23

18 19 20 21

16 17

14 15

Figure 3-4 Attaching the Adhesive Feet

2. Set the device on a flat surface near an AC power source, making sure there are at least two inches of space on all sides for proper air flow.

3. If installing a single switch only, go to “Connecting Switches in a Stack” at the end of this chapter.

OUNTING

4. If installing multiple switches, attach four adhesive feet to each one. Place each device squarely on top of the one below, in any order.

5. If also installing RPUs, place them close to the stack.

3-7

NSTALLING THE SWITCH

Installing an Optional SFP Transceiver

Slave

Stack

Master

UplinkUplink

PWR

Diag

RPU

Stack Master

Figure 3-5 Installing an SFP Transceiver into a Slot

The SFP slots support the following optional SFP transceivers:

• 1000BASE-SX (SMCBGSLCX1)

• 1000BASE-LX (SMCBGLLCX1)

• 1000BASE-ZX (SMCBGZLCX1)

To install an SFP transceiver, do the following:

1. Consider network and cabling requirements to select an appropriate SFP transceiver type.

2. Insert the transceiver with the optical connector facing outward and the slot connector facing down. Note that SFP transceivers are keyed so they can only be installed in one orientation.

3. Slide the SFP transceiver into the slot until it clicks into place.

Note: SFP transceivers are hot-swappable. The switch does not need to

be powered off before installing or removing a transceiver. However, always first disconnect the network cable before removing a transceiver.

Note: SFP transceivers are not provided in the switch package.

3-8

ONNECTING SWITCHES IN A STACK

Connecting Switches in a Stack

Figure 3-6 shows how the stack cables are connected between switches in a stack. Each stacking connection is a 2 Gbps full-duplex link using Category 5 Ethernet cables. The switch supports a line- and ring-topology stacking configuration, or can be used stand alone.

In line-topology stacking there is a single stack cable connection between each switch that carries two-way communications across the stack. In ring-topology stacking, an extra cable is connected between the top and bottom switches forming a “ring” or “closed-loop.” The closed-loop cable provides a redundant path for the stack link, so if one link fails, stack communications can be maintained. Figure 3-6 illustrates a ring-topology stacking configuration.

To connect up to four switches in a stack, perform the following steps:

1. Enable the stacking ports on each unit (i.e., leave the Stack button out).

Note: Pressing the Stack button during normal operation will cause

the system to reboot.

2. Plug one end of a stack cable into the “Down” port of the top unit (see Figure

3. Plug the other end of the stack cable into the “Up” port of the next unit (see Figure

4. Repeat steps 1 and 2 for each unit in the stack. Form a simple chain starting at the “Down” port on the top unit and ending at the “Up” port on the bottom unit (stacking up to 4 units).

3-6, Port 27).

3-6, port 28).

3-9

Slave

Stack

Master

UplinkUplink

PWR

Diag

RPU

Stack Master

51/Down

52/Up

49 50

42 43 44 45

46 47

Slave

Stack

Master

UplinkUplink

PWR

Diag

RPU

Stack Master

51/Down

52/Up

49 50

42 43 44 45

46 47

Slave

Stack

Master

UplinkUplink

PWR

Diag

RPU

Stack Master

51/Down

52/Up

49 50

42 43 44 45

46 47

NSTALLING THE SWITCH

5. (Optional) To form a ring topology stack, complete the connections by plugging one end of a stack cable into the Up port on the bottom unit and the other end into the Down port on the top unit. This forms a wrap-around topology. For a simple top to bottom chain topology ignore this step.

Figure 3-6 Connecting Switches in a Ring-topology Stack

6. Select the Master unit in the stack by pressing in the Master button on only one of the switches. Only one switch in the stack can operate as the Master, all other units operate in slave mode. If more than one switch in the stack is selected as Master, or if no switches are selected, the stack will not function.

3-10

ONNECTING SWITCHES IN A STACK

Stacking Topologies

Line Topology – All units in the stack must be connected via stacking

cable. You can connect units in a simple cascade configuration, connecting Down ports to Up ports, from the top to bottom unit. Using this “line” topology, if any link or unit in the stack fails, the stack is split into two separate segments. The new stack segments will then reboot and resume normal operation if a new segment contains the original Master unit, or if a new segment now contains only one switch. In other words, a new segment will resume normal operation unless it contains more than one switch and the Master button is not depressed on any of these switches. If the later case is true, and a segment fails to resume operation, you can either replace the failed connection to restore operation to the original stack, or depress the Master button on one of the switches in this segment.

When the stack reboots and resumes operations, the IP address will be set either using DHCP (according to the factory defaults), or may be set to a static address if you have configured one in the switch’s startup file. To avoid conflicting IP addresses on different segments, you can configure each of the switches in the stack to boot up using DHCP, or set a unique IP address in the startup file for each switch. Refer to the Management Guide for further information on configuring the switch.

Ring Topology – If you are using a wrap-around stack topology, a single point of failure in the stack will not cause the stack to fail. It would take two or more points of failure to break the stack apart. The stack will merely reboot to detect the new stack’s topology, and then resume normal operation.

3-11

NSTALLING THE SWITCH

Connecting to a Power Source

To connect a switch to a power source:

1. Insert the power cable plug directly into the AC receptacle located at the back of the switch.

RPU

12V 4.5A

Figure 3-7 Power Receptacles

2. Plug the other end of the cable into a grounded, 3-pin, AC power source.

Note: For International use, you may need to change the AC line

cord. You must use a line cord set that has been approved for the receptacle type in your country.

100-240V~ 50-60Hz2A

3. Check the front-panel LEDs as the device is powered on to be sure the PWR LED is lit. If not, check that the power cable is correctly plugged in.

4. If you have purchased a Redundant Power Unit, connect it to the switch and to an AC power source now, following the instructions

included with the package

4. An RPU is not yet available for this product.

3-12

ONNECTING TO THE CONSOLE PORT

Connecting to the Console Port

The DB-9 serial port on the switch’s rear panel is used to connect to the switch for out-of-band console configuration. The command-line-driven configuration program can be accessed from a terminal or a PC running a terminal emulation program. The pin assignments used to connect to the serial port are provided in the following table.

Figure 3-8 Serial Port (DB-9 DTE) Pin-Out

6 9

Wiring Map for Serial Cable

Table 3-1 Serial Cable Wiring

Switch’s 9-Pin

Serial Port

2 RXD (receive data) <---------------------------- 3 TXD (transmit data)

3 TXD (transmit data) ----------------------------> 2 RXD (receive data)

5 SGND (signal ground) ------------------------------ 5 SGND (signal ground)

No other pins are used.

The serial port’s configuration requirements are as follows:

• Default Baud rate—9,600 bps

• Character Size—8 Characters

•Parity—None

•Stop bit—One

• Data bits—8

• Flow control—none

Null Modem PC’s 9-Pin

DTE Port

3-13

NSTALLING THE SWITCH

3-14

HAPTER

AKING

ETWORK

ONNECTIONS

Connecting Network Devices

The SMC6248M switch is designed to interconnect multiple segments (or collision domains). It can be connected to network cards in PCs and servers, as well as to hubs, switches or routers. It may also be connected to remote devices using the optional 1000BASE-SX, 1000BASE-LX, or 1000BASE-ZX SFP transceivers.

Twisted-Pair Devices

Each device requires an unshielded twisted pair (UTP) cable with RJ-45 connectors at both ends. Use Category 5, 5e or 6 cable for 1000BASE-T connections, Category 5 or better for 100BASE-TX connections, and Category 3 or better for 10BASE-T connections.

Cabling Guidelines

The RJ-45 ports on the switch support automatic MDI/MDI-X pinout configuration, so you can use standard straight-through twisted-pair cables to connect to any other network device (PCs, servers, switches, routers, or hubs).

See Appendix B for further information on cabling.

Caution: Do not plug a phone jack connector into an RJ-45 port. This will damage the switch. Use only twisted-pair cables with RJ-45 connectors that conform to FCC standards.

4-1

AKING NETWORK CONNECTIONS

Connecting to PCs, Servers, Hubs and Switches

1. Attach one end of a twisted-pair cable segment to the device’s RJ-45 connector.

Figure 4-1 Making Twisted-Pair Connections

2. If the device is a network card and the switch is in the wiring closet, attach the other end of the cable segment to a modular wall outlet that is connected to the wiring closet. (See the section “Network Wiring Connections.”) Otherwise, attach the other end to an available port on the switch.

Make sure each twisted pair cable does not exceed 100 meters (328 ft) in length.

Note: Avoid using flow control on a port connected to a hub unless it is

actually required to solve a problem. Otherwise back pressure jamming signals may degrade overall performance for the segment attached to the hub.

3. As each connection is made, the Link LED (on the switch) corresponding to each port will light to indicate that the connection is valid.

4-2

WISTED-PAIR DEVICES

Network Wiring Connections

Today, the punch-down block is an integral part of many of the newer equipment racks. It is actually part of the patch panel. Instructions for making connections in the wiring closet with this type of equipment follows.

1. Attach one end of a patch cable to an available port on the switch, and the other end to the patch panel.

2. If not already in place, attach one end of a cable segment to the back of the patch panel where the punch-down block is located, and the other end to a modular wall outlet.

3. Label the cables to simplify future troubleshooting. See “Cable Labeling and Connection Records” on page 4-8.

Switch

16 17

16 17 14 15

14 15

8910

18 1920 21

40 41

46 47

22 23

38 39

323334

42 4344 45

Slave

Stack

Master

UplinkUplink

PWR

52/Up

51/Down

Diag

RPU

Stack

Master

49 50

Equipment Rack (side view)

Punch-Down Block

Patch Panel

Wall

Figure 4-2 Network Wiring Connections

4-3

AKING NETWORK CONNECTIONS

Fiber Optic SFP Devices

An optional Gigabit SFP transceiver (1000BASE-SX, 1000BASE-LX, or 1000BASE-ZX) can be used for a backbone connection between switches, or for connecting to a high-speed server.

Each single-mode fiber port requires 9/125 micron single-mode fiber optic cable with an LC connector at both ends. Each multimode fiber optic port requires 50/125 or 62.5/125 micron multimode fiber optic cabling with an LC connector at both ends.

Warning: This switch uses lasers to transmit signals over fiber optic

cable. The lasers are compliant with the requirements of a Class 1 Laser Product and are inherently eye safe in normal operation. However, you should never look directly at a transmit port when it is powered on.

Note: When selecting a fiber SFP device, considering safety, please make

sure that it can function at a temperature that is not less than the recommended maximum operational temperature of the product. You must also use an approved Laser Class 1 SFP transceiver.

Hinweis: Bei der Wahl eines Glasfasertransceivers muß für die

Beurteilung der Gesamtsicherheit beachtet werden, das die maximale Umgebungstemperatur des Transceivers für den Betrieb nicht niedriger ist als die für dieses Produkts. Der Glasfasertransceiver muß auch ein überprüftes Gerät der Laser Klasse 1 sein.

1. Remove and keep the LC port’s rubber plug. When not connected to a fiber cable, the rubber plug should be replaced to protect the optics.

2. Check that the fiber terminators are clean. You can clean the cable plugs by wiping them gently with a clean tissue or cotton ball moistened with a little ethanol. Dirty fiber terminators on fiber optic cables will impair the quality of the light transmitted through the cable and lead to degraded performance on the port.

4-4

IBER OPTIC

SFP D

EVICES

3. Connect one end of the cable to the LC port on the switch and the other end to the LC port on the other device. Since LC connectors are keyed, the cable can be attached in only one orientation.

Slave

Stack

Master

UplinkUplink

PWR

Diag

RPU

Stack Master

Figure 4-3 Making Fiber Port Connections

4. As a connection is made, check the Link LED on the switch corresponding to the port to be sure that the connection is valid.

The 1000BASE-SX, 1000BASE-LX, 1000BASE-ZX fiber optic ports operate at 1 Gbps, full duplex, with auto-negotiation of flow control. The maximum length for fiber optic cable operating at Gigabit speed will depend on the fiber type as listed under “1000 Mbps Gigabit Ethernet Collision Domain” on page 4-6.

4-5

AKING NETWORK CONNECTIONS

Connectivity Rules

When adding hubs (repeaters) to your network, please follow the connectivity rules listed in the manuals for these products. However, note that because switches break up the path for connected devices into separate collision domains, you should not include the switch or connected cabling in your calculations for cascade length involving other devices.

1000BASE-T Cable Requirements

All Category 5 UTP cables that are used for 100BASE-TX connections should also work for 1000BASE-T, providing that all four wire pairs are connected. However, it is recommended that for all critical connections, or any new cable installations, Category 5e (enhanced Category 5) or Category 6 cable should be used. The Category 5e and 6 specifications include test parameters that are only recommendations for Category 5. Therefore, the first step in preparing existing Category 5 cabling for running 1000BASE-T is a simple test of the cable installation to be sure that it complies with the IEEE 802.3-2002 standards.

1000 Mbps Gigabit Ethernet Collision Domain

4-6

Table 4-1 Maximum 1000BASE-T Gigabit Ethernet Cable Length

Cable Type Maximum Cable

Length

Category 5, 5e, or 6 100-ohm UTP or STP 100 m (328 ft) RJ-45

Table 4-2 Maximum 1000BASE-SX Gigabit Ethernet Cable Lengths

Fiber Size Fiber

62.5/125 micron multimode fiber

50/125 micron multimode fiber

Bandwidth

160 MHz/km 2-220 m (7-722 ft) LC

200 MHz/km 2-275 m (7-902 ft) LC

400 MHz/km 2-500 m (7-1641 ft) LC

500 MHz/km 2-550 m (7-1805 ft) LC

Maximum Cable Length

Connector

Table 4-3 Maximum 1000BASE-LX Gigabit Ethernet Cable Length

Fiber Size Fiber

Bandwidth

9/125 micron single-mode fiber

Table 4-4 Maximum 1000BASE-ZX Gigabit Ethernet Cable Length

Fiber Size Fiber

9/125 micron single-mode fiber

* For link spans exceeding 70 km, you may need to use premium single-mode fiber or

dispersion-shifted single-mode fiber

N/A 2 m - 5 km

Bandwidth

N/A 70* - 100 km

Maximum Cable Length

(7 ft - 3.2 miles)

Maximum Cable Length

(43.5 - 62.1 miles)

100 Mbps Fast Ethernet Collision Domain

Table 4-5 Maximum Fast Ethernet Cable Length

Type Cable Type Max. Cable Length Connector

100BASE-TX Category 5 or better

100-ohm UTP or STP

100 m (328 ft) RJ-45

ONNECTIVITY RULES

Connector

10 Mbps Ethernet Collision Domain

Table 4-6 Maximum Ethernet Cable Length

Type Cable Type Maximum Length Connector

10BASE-T Categories 3, 4, 5 or

better 100-ohm UTP

100 m (328 ft) RJ-45

4-7

AKING NETWORK CONNECTIONS

Cable Labeling and Connection Records

When planning a network installation, it is essential to label the opposing ends of cables and to record where each cable is connected. Doing so will enable you to easily locate inter-connected devices, isolate faults and change your topology without need for unnecessary time consumption.

To best manage the physical implementations of your network, follow these guidelines:

• Clearly label the opposing ends of each cable.

• Using your building’s floor plans, draw a map of the location of all network-connected equipment. For each piece of equipment, identify the devices to which it is connected.

• Note the length of each cable and the maximum cable length supported by the switch ports.

• For ease of understanding, use a location-based key when assigning prefixes to your cable labeling.

• Use sequential numbers for cables that originate from the same equipment.

• Differentiate between racks by naming accordingly.

• Label each separate piece of equipment.

• Display a copy of your equipment map, including keys to all abbreviations at each equipment rack.

4-8

ROUBLESHOOTING

Diagnosing Switch Indicators

Table A-1 Troubleshooting Chart

Symptom Action

PPENDIX

PWR LED is Off

PWR LED is Amber • Internal power supply has failed.

Diag LED is Amber • Power cycle the switch to try and clear the condition

Stack Master LED is Flashing Amber

Link LED is Off • Verify that the switch and attached device are powered on.

• Check connections between the switch, the power cord and the wall outlet.

• Contact your dealer for assistance.

• Contact your local dealer for assistance.

• If the condition does not clear, contact your dealer for assistance

• The stack has not completed its initial configuration. Wait a few minutes for the process to complete.

• If flashing continues, check that the Master Select button is pressed in on only one switch.

• Check that all stacking cables are properly connected.

• Be sure the cable is plugged into both the switch and corresponding device.

• If the switch is installed in a rack, check the connections to the punch-down block and patch panel.

• Verify that the proper cable type is used and its length does not exceed specified limits.

• Check the adapter on the attached device and cable connections for possible defects. Replace the defective adapter or cable if necessary.

A-1

ROUBLESHOOTING

Diagnosing Power Problems with the LEDs

The Power and RPU LEDs work in combination to indicate power status as follows.

Table A-2 Power/RPU LEDs

Power LED RPU LED Status

Green Amber Internal power functioning normally; RPU plugged in but

faulty.

Green Off Internal power functioning normally; RPU not plugged in.

Amber Green Internal power faulty; RPU delivering power.

Off Off Both internal power and RPU unplugged or not functioning.

Power and Cooling Problems

If the power indicator does not turn on when the power cord is plugged in, you may have a problem with the power outlet, power cord, or internal power supply. However, if the unit powers off after running for a while, check for loose power connections, power losses or surges at the power outlet. If you still cannot isolate the problem, the internal power supply may be defective.

Installation

Verify that all system components have been properly installed. If one or more components appear to be malfunctioning (such as the power cord or network cabling), test them in an alternate environment where you are sure that all the other components are functioning properly.

A-2

IN-B

In-Band Access

You can access the management agent in the switch from anywhere within the attached network using Telnet, a web browser, or other network management software tools. However, you must first configure the switch with a valid IP address, subnet mask, and default gateway. If you have trouble establishing a link to the management agent, check to see if you have a valid network connection. Then verify that you entered the correct IP address. Also, be sure the port through which you are connecting to the switch has not been disabled. If it has not been disabled, then check the network cabling that runs between your remote location and the switch.

Note: The management agent accepts up to four simultaneous Telnet

sessions. If the maximum number of sessions already exists, an additional Telnet connection will not be able to log into the system.

Stack Troubleshooting

If a stack fails to initialize or function, first check the following items:

AND ACCESS

• Check that all stacking cables are properly connected.

• Check if any stacking cables appear damaged.

• Check that the Master button is pressed in on only one switch.

• Check that the Stack button is pressed in on all switches.

• Check that all switches in the stack are powered on.

After checking all items, reboot all the switches in the stack.

The switch allows you to configure ring- or line-topology stacking. When using ring-topology stacking configuration and a switch fails, or a stacking cable is disconnected, the entire stack reboots and resumes normal operation using line-topology stacking through the remaining stack connections. Also, any changes to the stack including powering down of a unit or the insertion of a unit causes the stack to reboot.

A-3

ROUBLESHOOTING

A-4

PPENDIX

ABLES

Twisted-Pair Cable and Pin Assignments

For 10/100BASE-TX connections, a twisted-pair cable must have two pairs of wires. For 1000BASE-T connections the twisted-pair cable must have four pairs of wires. Each wire pair is identified by two different colors. For example, one wire might be green and the other, green with white stripes. Also, an RJ-45 connector must be attached to both ends of the cable.

Caution: Each wire pair must be attached to the RJ-45 connectors in a

specific orientation. (See an explanation.)

Caution: DO NOT plug a phone jack connector into any RJ-45 port.

This will damage the switch. Use only twisted-pair cables with RJ-45 connectors that conform with FCC standards.

“Cabling Guidelines” on page 4-1 for

The figure below illustrates how the pins on the RJ-45 connector are numbered. Be sure to hold the connectors in the same orientation when attaching the wires to the pins.

Figure B-1 RJ-45 Connector Pin Numbers

B-1

ABLES

10BASE-T/100BASE-TX Pin Assignments

Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for RJ-45 connections: 100-ohm Category 3 or better cable for 10 Mbps connections, or 100-ohm Category 5 or better cable for 100 Mbps connections. Also be sure that the length of any twisted-pair connection does not exceed 100 meters (328 feet).

The RJ-45 ports on the switch base unit support automatic MDI/MDI-X operation, you can use straight-through cables for all network connections to PCs or servers, or to other switches or hubs. In straight-through cable, pins 1, 2, 3, and 6, at one end of the cable, are connected straight through to pins 1, 2, 3, and 6 at the other end of the cable. When using any RJ-45 port on this switch, you can use either straight-through or crossover cable.

Table B-1 10/100BASE-TX MDI and MDI-X Port Pinouts

Pin MDI Signal Name MDI-X Signal Name

1 Transmit Data (TD+) Receive Data (RD+)

2 Transmit Data (TD-) Receive Data (RD-)

4,5,7,8

Note: The “+” and “-” signs represent the polarity of the wires that

Receive Data (RD+) Transmit Data (TD+)

Receive Data (RD-) Transmit Data (TD-)

Not used Not used

make up each wire pair.

B-2

WISTED-PAIR CABLE AND PIN ASSIGNMENTS

Straight-Through Wiring

If the twisted-pair cable is to join two ports and only one of the ports has an internal crossover (MDI-X), the two pairs of wires must be straight-through. (When auto-negotiation is enabled for any RJ-45 port on this switch, you can use either straight-through or crossover cable to connect to any device type.)

We recommend connecting all four wire pairs as shown in the following diagram to ease an upgrade to Gigabit Ethernet.

EIA/TIA 568B RJ-45 Wiring Standard

10/100BASE-TX Straight-through Cable

White/Orange Stripe

Orange

End A

1 2 3 4 5 6 7 8

White/Green Stripe

Blue

White/Blue Stripe

Green

White/Brown Stripe

Brown

1 2 3 4 5 6 7 8

End B

Figure B-2 Straight-through Wiring

B-3

ABLES

Crossover Wiring

If the twisted-pair cable is to join two ports and either both ports are labeled with an “X” (indicating MDI-X) or neither port is labeled with an “X” (which indicates MDI), a crossover must be implemented in the wiring. (When auto-negotiation is enabled for any RJ-45 port on this switch, you can use either straight-through or crossover cable to connect to any device type.)

We recommend connecting all four wire pairs as shown in the following diagram to ease an upgrade to Gigabit Ethernet.

EIA/TIA 568B RJ-45 WiringStandard

10/100BASE-TX Crossover Cable

White/Orange Stripe

Orange

End A

1 2 3 4 5 6 7 8

White/Green Stripe

Blue

White/Blue Stripe

Green

White/Brown Stripe

Brown

1 2 3 4 5 6 7 8

End B

B-4

Figure B-3 Crossover Wiring

WISTED-PAIR CABLE AND PIN ASSIGNMENTS

1000BASE-T Pin Assignments

All 1000BASE-T ports support automatic MDI/MDI-X operation, so you can use straight-through cables for all network connections to PCs or servers, or to other switches or hubs.

The table below shows the 1000BASE-T MDI and MDI-X port pinouts. These ports require that all four pairs of wires be connected. Note that for 1000BASE-T operation, all four pairs of wires are used for both transmit and receive.

Use 100-ohm Category 5, 5e or 6 unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for 1000BASE-T connections. Also be sure that the length of any twisted-pair connection does not exceed 100 meters (328 feet).

Table B-2 1000BASE-T MDI and MDI-X Port Pinouts

Pin MDI Signal Name MDI-X Signal Name

1 Bi-directional Data One Plus (BI_D1+) Bi-directional Data Two Plus (BI_D2+)

2 Bi-directional Data One Minus (BI_D1-) Bi-directional Data Two Minus (BI_D2-)

3 Bi-directional Data Two Plus (BI_D2+) Bi-directional Data One Plus (BI_D1+)

4 Bi-directional Data Three Plus (BI_D3+) Bi-directional Data Four Plus (BI_D4+)

5 Bi-directional Data Three Minus (BI_D3-) Bi-directional Data Four Minus (BI_D4-)

6 Bi-directional Data Two Minus (BI_D2-) Bi-directional Data One Minus (BI_D1-)

7 Bi-directional Data Four Plus (BI_D4+) Bi-directional Data Three Plus (BI_D3+)

8 Bi-directional Data Four Minus (BI_D4-) Bi-directional Data Three Minus (BI_D3-)

Cable Testing for Existing Category 5 Cable

Installed Category 5 cabling must pass tests for Attenuation, Near-End Crosstalk (NEXT), and Far-End Crosstalk (FEXT). This cable testing information is specified in the ANSI/TIA/EIA-TSB-67 standard. Additionally, cables must also pass test parameters for Return Loss and Equal-Level Far-End Crosstalk (ELFEXT). These tests are specified in the ANSI/TIA/EIA-TSB-95 Bulletin, “The Additional Transmission Performance Guidelines for 100 Ohm 4-Pair Category 5 Cabling.”

B-5

ABLES

Note that when testing your cable installation, be sure to include all patch cables between switches and end devices.

Adjusting Existing Category 5 Cabling to Run 1000BASE-T

If your existing Category 5 installation does not meet one of the test parameters for 1000BASE-T, there are basically three measures that can be applied to try and correct the problem:

1. Replace any Category 5 patch cables with high-performance Category 5e or Category 6 cables.

2. Reduce the number of connectors used in the link.

3. Reconnect some of the connectors in the link.

Fiber Standards

The current TIA (Telecommunications Industry Association) 568-A specification on optical fiber cabling consists of one recognized cable type for horizontal subsystems and two cable types for backbone subsystems.

Horizontal 62.5/125 micron multimode (two fibers per outlet). Backbone 62.5/125 micron multimode or single-mode.

TIA 568-B will allow the use of 50/125 micron multimode optical fiber in both the horizontal and backbone in addition to the types listed above. All optical fiber components and installation practices must meet applicable building and safety codes.

B-6

PPENDIX

PECIFICATIONS

Physical Characteristics

Ports

48 10/100BASE-TX, with auto-negotiation Two 10/100/1000BASE-T shared with two SFP transceiver slots Two 10/100/1000BASE-T or Stacking Ports (button selection)

Network Interface

Ports 1-48: RJ-45 connector, auto MDI/X

10BASE-T: RJ-45 (100-ohm, UTP cable; Category 3 or better) 100BASE-TX: RJ-45 (100-ohm, UTP cable; Category 5 or better)

Ports 49-52: RJ-45 connector, auto MDI/X

10BASE-T: RJ-45 (100-ohm, UTP cable; Category 3 or better) 100BASE-TX: RJ-45 (100-ohm, UTP cable; Category 5 or better) 1000BASE-T: RJ-45 (100-ohm, UTP or STP cable; Category 5, 5e or 6)

Buffer Architecture

4 Mbits

Aggregate Bandwidth

17.6 Gbps

Switching Database

8K MAC address entries

LEDs

System: PWR (Power Supply), Diag (Diagnostic),

RPU (Redundant Power Unit), Stack Master

Port: Single LED indicating link, speed, and activity

Weight

3.10 kg (6.83 lbs.)

C-1

PECIFICATIONS

Size

44.0 x 23 x 4.4 cm (17.32 x 9.06 x 1.73 in.)

Tem pe ra tu re

Operating: 0 °C to 50 °C (32 °F to 122 °F) Storage: -40°C to 70°C (-40°F to 158°F)

Humidity

Operating: 5% to 95% (non-condensing)

AC Input

100 to 240 V, 50-60 Hz, 2A

Power Supply

Internal, auto-ranging transformer: 100 to 240 VAC, 50 to 60 Hz, 2A External, supports a 14-pin connection for a redundant power supply

Power Consumption

54 Watts maximum

Maximum Current

2.0 A @ 100 VAC

1.0 A @ 240 VAC

Switch Features

Forwarding Mode

Store-and-forward

Throughput

Wire speed

Flow Control

Full Duplex: IEEE 802.3-2002 Half Duplex: Back pressure

C-2

Management Features

In-Band Management

Web, Telnet, SSH, or SNMP manager

Out-of-Band Management

RS-232 DB-9 console port

Software Loading

TFTP in-band, or XModem out-of-band

Standards

IEEE 802.3-2002

Ethernet, Fast Ethernet, Gigabit Ethernet Full-duplex flow control

IEEE 802.1D Spanning Tree Protocol IEEE 802.1w Rapid Spanning Tree Protocol ISO/IEC 8802-3

ANAGEMENT FEATURES

Compliances

CE Mark

Emissions

FCC Class A Industry Canada Class A EN55022 (CISPR 22) Class A EN 61000-3-2/3 VCCI Class A C-Tick - AS/NZS 3548 (1995) Class A

Immunity

EN 61000-4-2/3/4/5/6/8/11

C-3

PECIFICATIONS

Safety

CSA/CUS (CSA 60950 & UL60950) TÜV/GS (EN60950-1) CB (IEC 60950-1)

Warrant y

Limited Lifetime

C-4

PPENDIX

RDERING INFORMATION

Table D-1 TigerStack 10/100 Products and Accessories

Product Number Description

SMC6248M 48 10/100BASE-TX port switch with two

SMC6224M 24 10/100BASE-TX port switch with two

SMCBGSLCX1 1-port 1000BASE-SX Small Form Pluggable (SFP)

SMCBGLLCX1 1-port 1000BASE-LX Small Form Pluggable (SFP)

SMCBGZLCX1 1-port 1000BASE-ZX Small Form Pluggable (SFP)

SMCRPU600W

* Also available in models for Continental Europe and the UK.

Gigabit combination ports with RJ-45 connectors which are shared with SFP transceiver slots, and 2 Gigabit stacking ports that can be used as normal Ethernet ports in standalone mode

mini-GBIC transceiver

Redundant power unit with cables, supports one device

D-1

RDERING INFORMATION

D-2

LOSSARY

10BASE-T

IEEE 802.3 specification for 10 Mbps Ethernet over two pairs of Category 3, 4, or 5 UTP cable.

100BASE-TX

IEEE 802.3u specification for 100 Mbps Ethernet over two pairs of Category 5 UTP cable.

1000BASE-LX

IEEE 802.3z specification for Gigabit Ethernet over two strands of 50/ 125, 62.5/125 or 9/125 micron core fiber cable.

1000BASE-SX

IEEE 802.3z specification for Gigabit Ethernet over two strands of 50/ 125 or 62.5/125 micron core fiber cable.

1000BASE-T

IEEE 802.3ab specification for Gigabit Ethernet over 100-ohm Category 5, 5e or 6 twisted-pair cable (using all four wire pairs).

1000BASE-ZX

Specification for long-haul Gigabit Ethernet over two strands of 9/125 micron core fiber cable.

Auto-Negotiation

Signalling method allowing each node to select its optimum operational mode (e.g., 10, 100 or 1000 Mbps, and half or full duplex) based on the capabilities of the node to which it is connected.

Glossary-1

Bandwidth

The difference between the highest and lowest frequencies available for network signals. Also synonymous with wire speed, the actual speed of the data transmission along the cable.

Collision

A condition in which packets transmitted over the cable interfere other. Their interference makes both signals unintelligible.

Collision Domain

Single CSMA/CD LAN segment.

CSMA/CD

CSMA/CD (Carrier Sense Multiple Access/Collision Detect) is the communication method employed by Ethernet, Fast Ethernet, and Gigabit Ethernet.

End Station

A workstation, server, or other device that does not forward traffic.

Ethernet

A network communication system developed and standardized by DEC, Intel, and Xerox, using baseband transmission, CSMA/CD access, logical bus topology, and coaxial cable. The successor IEEE 802.3 standard provides for integration into the OSI model and extends the physical layer and media with repeaters and implementations that operate on fiber, thin coax and twisted-pair cable.

with each

Fast Ethernet

A 100 Mbps network communication system based on Ethernet and the CSMA/CD access method.

Glossary-2

Full Duplex

Transmission method that allows two network devices to transmit and receive concurrently, effectively doubling the bandwidth of that link.

Gigabit Ethernet

A 1000 Mbps network communication system based on Ethernet and the CSMA/CD access method.

IEEE

Institute of Electrical and Electronic Engineers.

IEEE 802.3

Defines carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications.

IEEE 802.3ab

Defines CSMA/CD access method and physical layer specifications for 1000BASE-T Gigabit Ethernet. (Now incorporated in IEEE 802.3-2002.)

IEEE 802.3u

Defines CSMA/CD access method and physical layer specifications for 100BASE-TX Fast Ethernet. (Now incorporated in IEEE 802.3-2002.)

IEEE 802.3x

Defines Ethernet frame start/stop requests and timers used for flow control on full-duplex links. (Now incorporated in IEEE 802.3-2002.)

IEEE 802.3z

Defines CSMA/CD access method and physical layer specifications for 1000BASE Gigabit Ethernet. (Now incorporated in IEEE 802.3-2002.)

LAN Segment

Separate LAN or collision domain.

Glossary-3

LED

Light emitting diode used for monitoring a device or network condition.

Local Area Network (LAN)

A group of interconnected computer and support devices.

Media Access Control (MAC)

A portion of the networking protocol that governs access to the transmission medium, facilitating the exchange of data between network nodes.

MIB

An acronym for Management Information Base. It is a set of database objects that contains information about the device.

Modal Bandwidth

Bandwidth for multimode fiber is referred to as modal bandwidth because it varies with the modal field (or core diameter) of the fiber. Modal bandwidth is specified in units of MHz per km, which indicates the amount of bandwidth supported by the fiber for a one km distance.

Network Diameter

Wire distance between two end stations in the same collision domain.

Redundant Power Supply (RPS)

A backup power supply unit that automatically supplies power should the primary power supply fail.

RJ-45 Connector

A connector for twisted-pair wiring.

Switched Ports

Ports that are on separate collision domains or LAN segments.

Glossary-4

TIA

Telecommunications Industry Association

Transmission Control Protocol/Internet Protocol (TCP/IP)

Protocol suite that includes TCP as the primary transport protocol, and IP as the network layer protocol.

UTP

Unshielded twisted-pair cable.

Virtual LAN (VLAN)

A Virtual LAN is a collection of network nodes that share the same collision domain regardless of their physical location or connection point in the network. A VLAN serves as a logical workgroup with no physical barriers, allowing users to share information and resources as though located on the same LAN.

Glossary-5

Glossary-6

NDEX

Numerics

10 Mbps connectivity rules 4-7 100 Mbps connectivity rules 4-7 1000 Mbps connectivity rules 4-6 1000BASE-LX fiber cable lengths 4-7 1000BASE-SX fiber cable lengths 4-6 1000BASE-ZX fiber cable lengths 4-7 100BASE cable lengths 4-7 100BASE-TX ports 1-3, 1-4 10BASE-T ports 1-3, 1-4

accessories, ordering D-1 adhesive feet, attaching 3-7 air flow requirements 3-1 applications

central wiring closet 2-3 collapsed backbone 2-2 remote connections with fiber 2-4 VLAN connections 2-5

brackets, attaching 3-5 buffer size C-1 buffers, saturation of 1-3

cable

Ethernet cable compatibility 3-2 fiber standards B-6 labeling and connection records 4-8 lengths 4-6, 4-7

cleaning fiber terminators 4-4

compliances

EMC C-3 safety C-4

connectivity rules

10 Mbps 4-7 100 Mbps 4-7 1000 Mbps 4-6

console port

pin assignments 3-13 contents of package 3-3 cooling problems A-2 cord sets, international 3-12

desktop mounting 3-7 device connections 4-1

electrical interference, avoiding 3-1 equipment checklist 3-3 Ethernet connectivity rules 4-7

Fast Ethernet connectivity rules 4-7 features C-3

management 1-10

switch 1-8 fiber cables 4-4 flow control, IEEE 802.3x 1-3 front panel of switch 1-2 full duplex connectivity 2-1

Gigabit Ethernet cable lengths 4-6 grounding for racks 3-4

Index-1

NDEX

IEEE 802.3 Ethernet 1-9 IEEE 802.3ae 10 Gigabit Ethernet 1-9 IEEE 802.3u Fast Ethernet 1-9 IEEE 802.3x flow control 1-3 IEEE 802.3z Gigabit Ethernet 1-9 indicators, LED 1-5 installation

connecting devices to the switch 4-2 desktop or shelf mounting 3-7 network wiring connections 4-3 port connections 4-1, 4-4 power requirements 3-1 problems A-2 site requirements 3-1 wiring closest connections 4-3

laser safety 4-4 LC port connections 4-4 LED indicators

Diag 1-7 Power 1-7 problems A-1 Stack 1-7

location requirements 3-1

management

agent 1-3 features 1-10, C-3 SNMP 1-3

mounting the switch

on a desktop or shelf 3-7

multimode fiber optic cables 4-4

network

connections 4-1, 4-4

ordering information D-1

package contents 3-3 pin assignments B-1

1000BASE-T B-5 10BASE-T/100BASE-TX B-2 console port 3-13 DB-9 3-13

port saturation 1-3 ports, connecting to 4-1, 4-4 power, connecting to 3-12 problems, troubleshooting A-1

rear panel of switch 1-2 rear panel receptacles 1-8 RJ-45 port 1-3, 1-4

connections 4-1 pinouts B-5

RPU

connecting 3-12 installing in a rack 3-6 installing on a desktop 3-7

rubber foot pads, attaching 3-7

screws for rack mounting 3-3 single-mode fiber optic cables 4-4 site selelction 3-1

Index-2

NDEX

SNMP agent 1-3 specifications

compliances C-3 environmental C-2 physical C-1 power C-2

standards

compliance C-3

IEEE C-3 status LEDs 1-5 switch architecture 1-2 switching

introduction to 2-1

method 1-2

Telnet A-3 temperature within a rack 3-4 TigerStack 10/100 Products and

Accessories

troubleshooting

in-band access A-3 power and cooling problems A-2 switch indicators A-1

twisted-pair connections 4-1

D-1

Index-3

NDEX

Index-4

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 support@smc-asia.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 http://www.smc-asia.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) 1932 866553; Fax 44 (0) 118 974 8701 France: 33 (0) 41 38 32 32; Fax 33 (0) 41 38 01 58 Italy: 39 (0) 335 5708602; 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 Nordic: 46 (0) 868 70700; Fax 46 (0) 887 62 62 Eastern Europe: 34 -93-477-4920; Fax 34 93 477 3774 Sub Saharian Africa: 27 0126610232; Fax 27-11 314 9133 North West Africa: 216 71236616; Fax 216 71751415 CIS: 7 (095) 789 35 73; Fax 7 (095) 789 35 73 PRC (Beijing): 86-10-8251-1550; Fax 86-10-8251-1551 PRC (Shanghai): 86-21-6485-9922; Fax 86-21-6495-7924 Taiwan: 886-2-8797-8006; Fax 886-2-8797-6288 Asia Pacific: (65) 6 238 6556; Fax (65) 6 238 6466 Korea: 82-2-553-0860; Fax 82-2-553-7202 Japan: 81-3-5645-5715; Fax 81-3-5645-5716 Australia: 61-2-8875-7887; Fax 61-2-8875-7777 India: 91 22 5696 2790; Fax 91 22 5696 2794 Middle East: 97 14 299 4466 Fax 97 14 299 4664 Thailand: 66 2 651 8733 Fax 66 2 651 8737

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

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

Model Number: SMC6248M Pub. Number: 150000017100H E022005-R01

Smc 6248M Installation Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Overview

Switch Architecture

Network Management Options

Description of Hardware

10BASE-T/100BASE-TX Ports

1000BASE-T/SFP Ports

Stacking Ports

Port and System Status LEDs

Power Supply Receptacles

Features and Benefits

Connectivity

Expandability

Performance

Management

Introduction to Switching

Application Examples

Collapsed Backbone

Network Aggregation Plan

Remote Connections with Fiber Cable

Making VLAN Connections

Application Notes

Selecting a Site

Ethernet Cabling

Equipment Checklist

Package Contents

Optional Rack-Mounting Equipment

Mounting

Rack Mounting

Desktop or Shelf Mounting

Installing an Optional SFP Transceiver

Connecting Switches in a Stack

Stacking Topologies

Connecting to a Power Source

Connecting to the Console Port

Wiring Map for Serial Cable

Connecting Network Devices

Twisted-Pair Devices

Cabling Guidelines

Connecting to PCs, Servers, Hubs and Switches

Network Wiring Connections

Fiber Optic SFP Devices

Connectivity Rules

1000BASE-T Cable Requirements

1000 Mbps Gigabit Ethernet Collision Domain

100 Mbps Fast Ethernet Collision Domain

10 Mbps Ethernet Collision Domain

Cable Labeling and Connection Records

Diagnosing Switch Indicators

Diagnosing Power Problems with the LEDs

Power and Cooling Problems

Installation

In-Band Access

Stack Troubleshooting

Twisted-Pair Cable and Pin Assignments

10BASE-T/100BASE-TX Pin Assignments

Straight-Through Wiring

Crossover Wiring

1000BASE-T Pin Assignments

Cable Testing for Existing Category 5 Cable

Adjusting Existing Category 5 Cabling to Run 1000BASE-T

Fiber Standards

Physical Characteristics

Switch Features

Management Features

Standards

Compliances