SMC Networks 6824MPE INT - annexe 1, TigerStack III SMC6824MPE Installation Manual

TigerStack III 10/100

Stackable 24-Port Fast Ethernet
PoE Switch

Installation Guide

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

◆ 10BASE-T/100BASE-TX ports support PoE capabilities

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

◆ 8.8 Gbps of aggregate bandwidth

◆ Stacks up to 8 units

◆ Non-blocking switching architecture

◆ Spanning Tree Protocol and Rapid STP

◆ Up to six LACP or static 4-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

SMC6824MPE

TigerStack III 10/100
Installation Guide

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

38 Tesla
Irvine, CA 92618
Phone: [phone]

October 2004

Pub. # 150200048700A

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.

Copyright © 2004 by

SMC Networks, Inc.

38 Tesla

Irvine, CA 92618

All rights reserved.

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.

L

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.

W

ARRANTY

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 [phone]. Customers are
responsible for all shipping charges from their facility to SMC. SMC is responsible for return
shipping charges from SMC to customer.

i

L

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

ii

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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 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.

Warnings: 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

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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:

o

, 4a,

RFI Emission:

Immunity:

• 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

LVD:

War ning: Do not plug a phone jack connector in the RJ-45 port. This may damage this device.
Les raccordeurs ne sont pas utilisé pour le systéme téléphonique!

• EN 60950 (A1/1992; A2/1993; A3/1993; A4/1995; A11/1997)

iv

according to EN 61000-4-11:1994 (>95% Reduction @10 ms, 30%
Reduction @500 ms, >95% Reduction @5000 ms)

Taiwan BSMI Class A

Australia AS/NZS 3548 (1995) - Class A

SMC contact for products in Australia is:

SMC Communications Pty. Ltd.
Suite 18, 12 Tryon Road,
Lindfield NSW2070,
Phone: [phone]
Fax: [phone]

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OMPLIANCES

Safety Compliance

Warning: Fiber Optic Port Safety

When using a fiber optic port, never look at the transmit laser while

CLASS I

LASER DEVICE

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

DISPOSITIF LASER

DE CLASSE I

Warnhinweis: Faseroptikanschlüsse - Optische Sicherheit

LASERGER
DER KLASSE I

ÄT

it is powered on. Also, never look directly at the fiber TX port and
fiber cable ends when they are powered on.

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.

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

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OMPLIANCES

Power Cord Safety

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

WAR NI NG

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

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

• The appliance coupler (the connector to the unit and not the wall plug) must have a
configuration for mating with an EN 60320/IEC 320 appliance inlet.

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

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

Important!

label on the cable) against the following:

:

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

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

Power Cord Set

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

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.

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

DK2-1a or DK2-5a.

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

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).

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OMPLIANCES

Power Cord Set

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

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.

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).

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

une

320.

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

Etats-Unis et
Canada:

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).

à

2 métres.

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OMPLIANCES

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

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

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

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).

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.

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

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

einhalten.

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

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

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Warnings and Cautionary Messages

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

Warning: When connecting this device 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.

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.

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

electrostatic discharge when handling this equipment.

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

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

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

standards.

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.

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Related Publications

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

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

SMC6824MPE Management Guide

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ABLE OF

C

ONTENTS

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

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

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

Power over Ethernet Capability . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

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

Description of Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

10/100BASE-T Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

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

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

Stack Master Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Mode PoE/Link Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Optional Stacking Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Power Supply Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

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

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

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ABLE OF CONTENTS

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

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

Desktop or Shelf Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Installing an SFP Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Stacking Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Installing a Stacking Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

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

Connecting to a Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Connecting to the Console Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Wiring Map for Serial Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

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

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

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

Power over Ethernet Connections . . . . . . . . . . . . . . . . . . . . . . . 4-1

Cabling Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Connecting to PCs, Servers, Hubs and Switches . . . . . . . . . . . . 4-3

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

Fiber Optic Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

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

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

1000 Mbps Gigabit Ethernet Collision Domain . . . . . . . . . . . . . 4-7

100 Mbps Fast Ethernet Collision Domain . . . . . . . . . . . . . . . . 4-8

10 Mbps Ethernet Collision Domain . . . . . . . . . . . . . . . . . . . . . 4-8

Cable Labeling and Connection Records . . . . . . . . . . . . . . . . . . . . . . . . 4-9

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

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

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

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

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

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

xii

T

ABLE OF CONTENTS

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

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

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

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

Crossover Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

1000BASE-T Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

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

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

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

Base Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

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

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

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

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

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

Glossary

Index

xiii

T

ABLES

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

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

Table 3-1 Serial Cable Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Table 4-1 Maximum 1000BASE-T Gigabit Ethernet Cable Length . . 4-7
Table 4-2 Maximum 1000BASE-SX Gigabit Ethernet Cable Lengths 4-7
Table 4-3 Maximum 1000BASE-LX Gigabit Ethernet Cable Length 4-7
Table 4-4 Maximum 1000BASE-ZX Fiber Optic Cable Distance . . . 4-7

Table 4-5 Maximum Fast Ethernet Cable Lengths . . . . . . . . . . . . . . . 4-8

Table 4-6 Maximum Ethernet Cable Length . . . . . . . . . . . . . . . . . . . . 4-8

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

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 III 10/100 Products and Accessories . . . . . . . .D-1

xiv

F

IGURES

Figure 1-1 SMC6824MPE Front and Rear Panels . . . . . . . . . . . . . . . . 1-2

Figure 1-2 Port and System Status LEDs . . . . . . . . . . . . . . . . . . . . . . . 1-5

Figure 1-3 System LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Figure 1-4 Stack Master Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Figure 1-5 Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Figure 1-6 Optional Stacking Transceiver . . . . . . . . . . . . . . . . . . . . . . . 1-9

Figure 1-7 Power Supply Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

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 . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Figure 3-5 Installing an SFP Transceiver . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Figure 3-6 Installing a Stacking Transceiver . . . . . . . . . . . . . . . . . . . . . 3-8

Figure 3-7 Connecting Switches in a Stack . . . . . . . . . . . . . . . . . . . . . . 3-9

Figure 3-8 Power Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Figure 3-9 Serial Port (DB-9 DTE) Pin-Out . . . . . . . . . . . . . . . . . . . . 3-11

Figure 4-1 Making Twisted-Pair Connections . . . . . . . . . . . . . . . . . . . . 4-3

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

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

xv

F

IGURES

xvi

Overview

The SMC6824MPE Power over Ethernet switch contains 24 10BASE-T/
100BASE-TX RJ-45 ports and and two combination ports—10/100/
1000BASE-T ports that operate in combination with Small Form Factor
Pluggable (SFP) transceiver slots. An optional SFP stacking transceiver is
available for connecting up to eight units to a 1 Gbps stack backplane.

T

IGERSTACK

C

HAPTER

A

BOUT THE

1

III 10/100

All the 10BASE-T/100BASE-TX ports on the switch support IEEE 802.3af
standard (802.3af) Power over Ethernet capabilities. Each port can detect
connected 802.3af-compliant network devices, such as IP phones or wireless
access points, and automatically supply the required DC power.

As well as its Power over Ethernet capabilities, the switch provides
comprehensive network management features, such as Spanning Tree
Protocol, multicast switching, virtual LANs, and Layer 2/3/4 CoS services
that provide reliability and consistent performance for your network traffic.

1-1

A

BOUT THE TIGERSTACK

III 10/100

1234567

TigerStack III 10/100
6824MPE

Slave

Master

Stack Master Button

Power Socket

1

Console

2

Console Port

100-240V~ 50-60Hz7.5A

Figure 1-1 SMC6824MPE Front and Rear Panels

Switch Architecture

The SMC6824MPE 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 SMC6824MPE switch also features full-duplex

Port Status Indicators (1-24)

89

10

11 1 2

11

121314

131415 16

Combination RJ-45/SFP Ports

18 19

20

21 222324

17

23

25

24

Combination Port

Status Indicators (25, 26) Mode PoE/Link Button

26

System Indicators

Link/Act

PWR

PoE

Diag

25

26

Stacking

Mode

PoE/Link

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.

The switch includes two Gigabit combination ports with RJ-45 connectors
and associated SFP slots. The optional SFP stacking transceiver enables up to
eight units to be connected together through a 1 Gbps stack backplane. The
switch stack can be managed from a connection to any port on the stack
using a single IP address.

1-2

Power over Ethernet Capability

The SMC6824MPE switch’s 24 front panel 10/100 Mbps ports support the
IEEE 802.3af Power over Ethernet (PoE) standard that enables DC power
to be supplied to attached devices using wires in the connecting Ethernet
cable. Any 802.3af-compliant device attached to a port can directly draw
power from the switch over the Ethernet cable without requiring its own
separate power source. This capability gives network administrators
centralized power control for devices such as IP phones and wireless access
points, which translates into greater network availability.

For each attached 802.3af-compliant device, the SMC6824MPE switch
automatically senses the load and dynamically supplies the required power.
The switch delivers power to a device using the two wire pairs in UTP or
STP cable that are not used for 10BASE-T/100BASE-TX connections. Each
port can provide up to 15.4 W of power at the standard -48 VDC voltage.

O

VERVIEW

Independent overload and short-circuit protection for each port allows the
switch to automatically shut down a port’s power when limits are exceeded.

Network devices such as IP phones, wireless access points, and network
cameras, typically consume less than 10 W of power, so they are ideal for
Power over Ethernet applications.

Network Management Options

With a comprehensive arrangement of LEDs, the SMC6824MPE switch
provides “at a glance” monitoring of network and port status. The switch can
be managed over the network with a web browser or Telnet application, or
via a direct connection to the console port. The switch includes a built-in
network management agent that allows it to be managed in-band using
SNMP or RMON (Groups 1, 2, 3, 9) protocols. It also has an RS-232 serial
port (DB-9 connector) on the front panel for out-of-band management. A
PC may be connected to this port
out-of-band via a

null-modem serial cable. (See Appendix B for wiring

for configuration and monitoring

options.)

1-3

A

BOUT THE TIGERSTACK

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

III 10/100

Description of Hardware

10/100BASE-T Ports

The SMC6824MPE switch base unit contains 24 10BASE-T/100BASE-TX
RJ-45 ports. All 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 “10/100BASE-TX Pin Assignments” on
page B-2.)

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.

1000BASE-T/SFP Ports

These are combination Gigabit RJ-45 ports with shared Small Form Factor
Pluggable (SFP) transceiver slots. If an SFP transceiver (purchased
separately) is installed in a slot and has a valid link on the port, the associated
RJ-45 port is disabled.

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-4.)

Note: Neither the 1000BASE-T RJ-45 ports nor the SFP slots support PoE

capability.

1-4

Port and System Status LEDs

1234

56

7

89

1

2

The SMC6824MPE switch base unit also 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. The port
status LEDs have two display modes; Link and PoE. The Link mode displays
the link status and network activity on each port. The PoE mode displays the
PoE power status on each port. Use the Mode Link/PoE button (see “Mode
PoE/Link Button” on page 1-8) on the front panel to toggle between the
two display modes. The current mode is indicated by the Link/Act and PoE
system LEDs.

Port Status LEDs

D

ESCRIPTION OF HARDWARE

Figure 1-2 Port and System Status LEDs

Table 1-1 Port Status LEDs

LED Condition Status

1~24

(Link/Activity
Mode)

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.

Alternate
Green/Amber

Port has been disabled by the
administrator.

Off There is no valid link on the port.

1-5

A

BOUT THE TIGERSTACK

LED Condition Status

III 10/100

Table 1-1 Port Status LEDs

1~24

(PoE Mode)

Combination Ports

25-26

(Link/Activity)

On Green Powered device is connected, but not

drawing power.

Flashing Green Powered device is receiving power.

Flashing Amber Port has detected a power overload or

short circuit and shut down the port’s
power.

On Amber The power budget for the switch has

been exceeded and the port’s power
shut down.

Alternate
Green/Amber

Off No powered device is connected to the

On/Flashing
Amber

Port power has been turned off by the
administrator.

port.

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

1-6

On/Flashing
Green

Off There is no valid link on the port.

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

D

ESCRIPTION OF HARDWARE

System Status LEDs

Link/Act

PWR

PoE

Diag

25

26

Stacking

Mode

PoE/Link

Figure 1-3 System LEDs

Table 1-2 System Status LEDs

LED Condition Status

PWR On Green Unit’s internal power supply is operating

normally.

Off Unit has no power connected.

Diag On Green System diagnostic test successfully completed.

Flashing Green System diagnostic test is in progress.

On Amber System diagnostic test has detected a fault.

Flashing Amber Cannot receive packet from stacking port.

Alternate

Fan has failed or the unit has over-heated.

Green/Amber

Stacking On Green This switch is acting as the master unit in the

stack.

Flashing Green Initial state of stacking configuration to

determine whether the switch will act as a
master or slave unit.

On Amber This switch is acting as a slave unit in the stack.

Link/Act On Green LED display mode is Link/Act.

PoE On Green LED display mode is PoE.

1-7

A

BOUT THE TIGERSTACK

Stack Master Button

The unit also includes a Stack Master button, as shown in the following
diagram.

Slave

Master

Stack Master Button

III 10/100

Console

Figure 1-4 Stack Master Button

The Stack Master button enables one switch in the stack to be selected as the
master.

Mode PoE/Link Button

The Mode PoE/Link button is located on the front panel.

Figure 1-5 Mode Selection

The Mode PoE/Link button is used to toggle between the two port status

Mode Select Button

Link/Act

PWR

PoE

Diag

25

26

Stacking

Mode

PoE/Link

LED display modes (see “Port and System Status LEDs” on page 1-5).
Pressing this button changes from one display mode to the other. The
default display mode is Link/Act mode.

1-8

Optional Stacking Transceiver

TX

RX

Figure 1-6 Optional Stacking Transceiver

The stacking transceiver provides two 1 Gbps ports via USB Type-A
connectors. The upper port is a transmit port and the lower one is a receive
port. The transceiver allows up to eight switches to be linked together using

D

ESCRIPTION OF HARDWARE

stacking cables (one stacking cable is included with each optional stacking
transceiver). The push button on the switch’s front panel enables one switch
in the stack to be selected as the master. (See “Stack Master Button” on page
1-8.)

Power Supply Receptacle

The standard power receptacle is for the AC power cord. It is located on the
rear panel of the switch.

Figure 1-7 Power Supply Receptacle

100-240V~ 50-60Hz 7.5A

1-9

A

BOUT THE TIGERSTACK

III 10/100

Features and Benefits

Connectivity

• 24 dual-speed ports for easy Fast Ethernet integration and for protection

of your investment in legacy LAN equipment.

• All 10/100 RJ-45 ports support IEEE 802.3af standard Power over

Ethernet

• Two Gigabit combination ports—use either 10/100/1000BASE-T

RJ-45 or Small Form Factor Pluggable (SFP) transceiver slot

• Auto-negotiation enables each RJ-45 port to automatically select the

optimum communication mode (half or full duplex) if this feature is
supported for the attached device

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

• Unshielded (UTP) cable supported on all RJ-45 ports: Category 3 or

better for 10 Mbps connections, Category 5 or better for 100 Mbps
connections, and Category 5, 5e or 6 for 1000 Mbps connections

• IEEE 802.3u, IEEE 802.3z, and IEEE 802.3ab compliant

Performance

• Transparent bridging

• Aggregate duplex bandwidth of up to 8.8 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

1-10

• Supports auto MDI/MDIX on all 10/100BASE-TX ports

• Provides Head-of-Line blocking

• Broadcast storm control

• Desktop or rack-mountable

• Stacking capability for up to eight units

Management

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

• Network management agent:

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

F

EATURES AND BENEFITS

- Supports Telnet, SNMP/RMON and web-based interface

1-11

A

BOUT THE TIGERSTACK

III 10/100

1-12

N

ETWORK

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

C

HAPTER

P

LANNING

2

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 maximum
distance between end stations is limited. For Ethernet, there may be up to
four hubs between any pair of stations and for Fast Ethernet, the maximum
is two. This is known as the 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 network to significantly boost
bandwidth while using conventional cabling and network cards.

2-1

N

ETWORK PLANNING

Application Examples

The SMC6824MPE PoE switch 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 SMC6824MPE switch is an excellent choice for mixed Ethernet and Fast
Ethernet installations where significant growth is expected in the near future.
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 hub or switch using one of the Gigabit
Ethernet ports built into the front panel.

In the figure below, the switch is operating as a collapsed backbone for a
small LAN. It is providing dedicated 100 Mbps full-duplex connections to
workstations and 100 Mbps full-duplex connections to power users and
servers. In addition, connected IP phones and wireless access points are
receiving PoE power from the switch.

TigerStackIII 10/100
6824MPE

Slave

Master

89

10

1234567

1

Console

2

11 12

11

121314

131415 16

18 19

20

21 222324

17

23

24

Link/Act

PWR

26

25

PoE

Diag

25

26

Stacking

Mode

PoE/Link

...

Servers

100 Mbps
Full Duplex

Power-over-Ethernet Devices

10/100 Mbps
Full Duplex

...

Network Segment

100 Mbps
Full Duplex

Workstations

100 Mbps
Full Duplex

Standard LAN

PoE

2-2

Figure 2-1 Collapsed Backbone

Network Aggregation Plan

With 24 parallel bridging ports (i.e., 24 distinct collision domains), the
SMC6824MPE switch can collapse a complex network down into a single
efficient bridged node, increasing overall bandwidth and throughput.

In the figure below, the 10BASE-T/100BASE-TX ports on the switch are
providing 100 Mbps connectivity for up to 24 segments. In addition, the
SMC6824MPE switch is also connecting to a server at 1000 Mbps.

A

PPLICATION EXAMPLES

Switch Units

TigerStackIII 10/100
6824MPE

Slave

Master

TigerStackIII 10/100
6824MPE

Slave

Master

TigerStackIII 10/100
6824MPE

Slave

Master

89

10

89

89

11 12

121314

10

11 12

121314

10

11 12

1234567

1

Console

2

1234567

1

Console

2

1234567

1

Console

2

11

11

11

121314

131415 16

131415 16

131415 16

18 19

20

21 222324

17

23

24

Tx

Rx

18 19

20

17

21 222324

23

2424

24

Tx

Rx

18 19

20

21 222324

17

23

2424

24

Tx

Rx

Link/Act

PWR

26

25

PoE

Diag

25

26

Stacking

Mode

PoE/Link

Link/Act

PWR

26

25

PoE

Diag

25

26

Stacking

Mode

PoE/Link

Link/Act

PWR

26

25

PoE

Diag

25

26

Stacking

Mode

PoE/Link

10/100 Mbps Segments

...

...

Figure 2-2 Network Aggregation Plan

Stacking Cable

Server

2-3

N

ETWORK PLANNING

Remote Connections with Fiber Cable

Fiber optic technology allows for longer cabling than any other media type.
Using a 1000BASE-SX multimode fiber (MMF) SFP transceiver, you can run
a link up to 550 m. A 1000BASE-LX single-mode fiber (SMF) link can run
up to 5 km. A 1000BASE-ZX single-mode fiber (SMF) link can run up to
100 km. This allows the switch to serve as a collapsed backbone, providing
direct connectivity for a widespread LAN.

1000BASE-LX or 1000BASE-ZX SFP transceivers can be used to
interconnect remote network segments, or can be used to provide a link to
other buildings in a campus setting. 1000BASE-SX SFP transceivers can be
used for Gigabit fiber connections between floors in the same building.
The figure below illustrates this switch connecting multiple segments with
fiber cable.

Server Farm

Remote Switch

1234567

TigerStackIII 10/100
6824MPE

Slave

Master

1

Console

2

1000BASE-ZX SMF
(100 kilometers)

89

10

11 12

11

121314

131415 16

18 19

20

21 222324

17

23

24

26

25

1000BASE-LX SMF
(5 kilometers)

Remote Switch

10/100 Mbps Segments

...

...

Figure 2-3 Remote Connections with Fiber Cable

Link/Act

PWR

PoE

Diag

25

26

Stacking

Mode

PoE/Link

2-4

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.

A

PPLICATION EXAMPLES

R&D

Testing

VLAN 2

VLAN 1

Tagged

Ports

Finance

VLAN 3

TigerStackIII 10/100
6824MPE

Slave

Master

VLAN 4

Console

Untagged Ports

Marketing

1234567

1

2

VLAN

unaware

switch

89

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11 12

11

121314

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131415 16

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17

Tagged Port

23

25

24

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VLAN 1

26

VLAN 2

Link/Act

PWR

PoE

Diag

25

26

Stacking

Mode

PoE/Link

VLAN
aware
switch

Testing

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

N

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) using multimode fiber.

• 1000BASE-LX: 5 km (3.2 miles) using single-mode fiber

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

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

2-6

I

NSTALLING THE

Selecting a Site

SMC6824MPE switch 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.

C

HAPTER

S

WITCH

3

- 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 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 2.44 m (8 feet) of
each device and is powered from an independent circuit breaker. As with
any equipment, using a filter or surge suppressor is recommended.

3-1

I

NSTALLING THE SWITCH

Ethernet Cabling

To ensure proper operation when installing the SMC6824MPE switch into a
network, make sure that the current cables are suitable for 10BASE-T or
100BASE-TX 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 and
Category 5 or better for 100BASE-TX.

• 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

Figure 3-1 RJ-45 Connections

3-2

Equipment Checklist

After unpacking this SMC6824MPE switch, 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

• SMC6824MPE PoE switch

• AC power cord

• Owner registration card

• Serial cable

• Rack mounting kit

• This Installation Guide

E

QUIPMENT CHECKLIST

• 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 SMC6824MPE 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

I

NSTALLING THE SWITCH

Mounting

The SMC6824MPE 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 SMC6824MPE 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. (See page C-2.)

• 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.

3-4

M

OUNTING

To rack-mount devices:

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

Bracket Mounting Kit.

25

26

Link/Act

PW

R

PoE

Diag

25

26

S

tacking

M

ode

P

oE

/Link

Figure 3-2 Attaching the Brackets

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

provided).

2

5

2

6

Link/Act

PW

R

PoE

Diag

25

26

Stacking

Mode

PoE/Link

Figure 3-3 Installing the Switch in a Rack

3. If installing a single switch only, turn to “Connecting to a Power Source”

at the end of this chapter.

3-5

I

NSTALLING THE SWITCH

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

other, in any order.

Desktop or Shelf Mounting

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

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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 to a Power Source” at

the end of this chapter.

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.

3-6

I

NSTALLING AN

Installing an SFP Transceiver

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26

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Link/Act

SFP T

PW

R

PoE

Diag

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26

Stacking

M

ode

PoE/Link

RANSCEIVER

Figure 3-5 Installing an SFP Transceiver

To install an SFP transceiver, perform the following steps:

1. Consider your 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.

3-7

I

NSTALLING THE SWITCH

Stacking Switches

The switch supports stacking up to eight units through an optional SFP
stacking transceiver. The stacking transceiver must be installed in the port 25
slot. Each stacking transceiver has two connectors, Tx and Rx, for attaching
stacking cables. Figure 3-7 shows how stacking cables are connected between
switches in a stack.

Note: The stacking transceiver must only be installed in the port 25 SFP

slot.

Installing a Stacking Transceiver

The stacking transceiver must be installed in the port 25 slot. It should be
inserted before any of the systems in the stack are powered on.

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Figure 3-6 Installing a Stacking Transceiver

Slide the SFP transceiver into the SFP transceiver slot until it clicks into
place. To remove, pull on the tab at the bottom of the front of the
transceiver.

3-8

Connecting Switches in a Stack

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S

TACKING SWITCHES

Stack Master

Slave

Slave

Figure 3-7 Connecting Switches in a Stack

Note: The stacking transceiver must only be installed in the port 25 SFP

slot.

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

1. Install SFP stacking transceivers into the port 25 slot for each switch in
the stack.

2. Plug one end of a stack cable into the Tx (top) port of the top unit

3. Plug the other end of the stack cable into the Rx (bottom) port of the
next unit.

4. Repeat steps 1 and 2 for each unit in the stack. Form a simple chain
starting at the Tx port on the top unit and ending at the Rx port on the
bottom unit (stacking up to 8 units).

3-9

I

NSTALLING THE SWITCH

5. Complete the stack connections by plugging one end of a stack cable
into the Tx port on the bottom unit and the other end into the Rx port
on the top unit.

6. Select the Master unit in the stack by pressing the push button in 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.

Note: The stacking feature requires that all stacking transceiver ports be

connected and the switches powered on. If one stack link is not
connected, or if a switch is powered off or fails, the stack will not
function. To re-establish the stack all switches in the stack must be
powered on (or the faulty switch replaced), and the Master unit
rebooted. This will then reboot all the other switches in the stack.

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.

100-240V~ 50-60Hz 7.5A

Figure 3-8 Power Receptacles

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

3-10

C

ONNECTING TO THE CONSOLE PORT

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.

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.

Connecting to the Console Port

The DB-9 serial port on the SMC6824MPE switch’s front panel is used to
connect to the switch for out-of-band console configuration. If using a stack,
the connection must be made to the serial port of the Master unit in the
stack. The on-board menu-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.

1

5

6 9

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

3-11

I

NSTALLING THE SWITCH

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.

Null Modem PC’s 9-Pin

DTE Port

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

3-12

C

HAPTER

4

M

AKING

C

ONNECTIONS

Connecting Network Devices

The SMC6824MPE PoE switch is designed to be connected to 10 or
100 Mbps network cards in PCs and servers, as well as to other switches and
hubs. It may also be connected to remote devices using the optional SFP
transceivers.

If 802.3af-compliant PoE devices are connected the switch’s 10/100 Mbps
ports, it automatically supplies the required power.

N

ETWORK

Twisted-Pair Devices

Each device requires a twisted-pair (UTP or STP) 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.

Power over Ethernet Connections

The SMC6824MPE PoE switch automatically detects an 802.3af-compliant
device by its authenticated PoE signature and senses its required load before
turning on DC power to the port. This detection mechanism prevents
damage to other network equipment that is not 802.3af compliant.

4-1

M

AKING NETWORK CONNECTIONS

Note: Power over Ethernet connections work with all existing Category 3,

4, 5, 5e or 6 network cabling, including patch cables and
patch-panels, outlets, and other connecting hardware, without
requiring modification.

The SMC6824MPE switch delivers power to a device using the two unused
wire pairs in UTP or STP cable (RJ-45 pins 4, 5, 7, and 8). The switch can
provide up to 15.4 W of power continuously on each 10/100 Mbps port.
However, taking into account some power loss over the cable run, the
amount of power that can be delivered to a terminal device is 12.95 W. If a
device draws more than 15.4 W, from a port, an overload condition occurs
and the port turns off the power.

The switch controls the power and data on a port independently. Power can
be requested from a device that already has a data link to the switch. Also, the
switch can supply power to a device even if the port’s data connection has
been disabled. The power on a port is continuously monitored by the switch
and it will be turned off as soon as a device connection is removed.

Cabling Guidelines

The RJ-45 ports on the SMC6824MPE 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.

4-2

T

WISTED-PAIR DEVICES

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 SMC6824MPE switch.

3. 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.

4-3

M

AKING NETWORK CONNECTIONS

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
SMC6824MPE 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.

TigerStackIII10/100
6824MPE

Slave

Master

Switch

89

18 19

10

131415 16

1234567

1

Console

2

20

11 12

17

21 222324

23

11

121314

Link/Act

PWR

26

25

PoE

Diag

25

26
Stacking

Mode

PoE/Link

24

Equipment Rack
(side view)

Punch-Down Block

Patch Panel

Wall

4-4

Figure 4-2 Network Wiring Connections

Fiber Optic Devices

An optional slide-in 1000BASE-SX, 1000BASE-LX, or 1000BASE-ZX SFP
transceiver may be used for backbone or remote connections, or for
connecting to a high-speed server.

Each single-mode fiber optic port requires 9/125 micron single-mode fiber
optic cabling 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

T

WISTED-PAIR DEVICES

it is powered on.

1. Remove and keep any protective port covers. When not connected to a
fiber cable, the cover 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.

4-5

M

AKING NETWORK CONNECTIONS

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

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connector

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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 SMC6824MPE 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 802.3ab standards.

4-6

1000 Mbps Gigabit Ethernet Collision Domain

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

C

ONNECTIVITY RULES

Cable Type Maximum Cable

Length

Category 5, 5e, or 6 100-ohm UTP
or STP

100 m (328 ft) RJ-45

Connector

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

Fiber Size Fiber

Bandwidth

62.5/125 micron
multimode fiber

50/125 micron
multimode fiber

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

Maximum Cable
Length

Connector

9/125 micron
single-mode fiber

N/A 2 m - 5 km

(7 ft - 3.2 miles)

LC

Table 4-4 Maximum 1000BASE-ZX Fiber Optic Cable Distance

Fiber Size Fiber

Bandwidth

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 70* - 100 km

Maximum Cable
Length

(43.5 - 62.1 miles)

Connector

LC

4-7

M

AKING NETWORK CONNECTIONS

100 Mbps Fast Ethernet Collision Domain

Table 4-5 Maximum Fast Ethernet Cable Lengths

Type Cable Type Max. Cable Length Connector

100BASE-TX Category 5 or better 100-ohm

UTP or STP

10 Mbps Ethernet Collision Domain

Table 4-6 Maximum Ethernet Cable Length

Cable Type Maximum

Twisted Pair, Category 3 or better
100-ohm UTP

100 m (328 ft) RJ-45

Connector

Length

100 m (328 ft) RJ-45

4-8

C

ABLE LABELING AND CONNECTION RECORDS

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.

4-9

M

AKING NETWORK CONNECTIONS

4-10

A

T

ROUBLESHOOTING

Diagnosing Switch Indicators

Table A-1 Troubleshooting Chart

Symptom Action

PPENDIX

A

PWR LED is
Off

Diag LED is
Amber

Diag LED is
Flashing Amber

Stack LED is
Flashing Green
or Amber

• Internal power supply may be disconnected. Check
connections between the switch, the power cord and the
wall outlet.

• The system has detected a fault. Power cycle the switch
to try and clear the condition.

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

• Check that all stacking cables are properly connected.

• 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.

A-1

T

ROUBLESHOOTING

Symptom Action

Table A-1 Troubleshooting Chart

Link/Act LED
is Off

• Verify that the switch and attached device are powered
on.

• 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.

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, and verify that the fans on the unit are unobstructed and running
prior to shutdown. 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-Band Access

You can access the management agent in the SMC6824MPE 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

IN-B

AND ACCESS

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:

• Check that all stacking cables are properly connected.

• Check if any stacking cables appear damaged.

• Check that only one Master Select button is pressed in.

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

After checking all items, reboot all the switches in the stack. If the problem is
still not resolved, contact your dealer for assistance.

A-3

T

ROUBLESHOOTING

A-4

A

PPENDIX

C

ABLES

Twisted-Pair Cable and Pin Assignments

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

port. Use only twisted-pair cables with RJ-45 connectors that
conform with FCC standards.

For 10/100BASE-TX connections, the 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.

B

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 “Cabling Guidelines” on page 4-2 for an
explanation.)

Figure B-1 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

C

ABLES

10/100BASE-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).

Data is delivered on the standard two wire pairs (pins 1, 2, 3, and 6), and PoE
power is supplied using the two previously spare pairs (pins 4, 5, 7, and 8).
Since 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 Receive Data plus (RD+) Transmit Data plus (TD+)

B-2

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

3

4

5

6

7

8

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

GND (Positive V

GND (Positive V

) GND (Positive V

port

) GND (Positive V

port

port

port

)

)

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

-48V feeding power (Negative V

-48V feeding power (Negative V

) -48V feeding power (Negative V

port

) -48V feeding power (Negative V

port

port

port

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

wire pair.

)

)

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.)

EIA/TIA 568B RJ-45 Wiring Standard

10/100BASE-TX Straight-through Cable

End A

1
2
3
4
5
6
7
8

T

WISTED-PAIR CABLE AND PIN ASSIGNMENTS

White/Orange Stripe

Orange

White/Green Stripe

Blue

White/Blue Stripe

Green

White/Brown Stripe

1
2
3
4
5
6
7
8

End B

Crossover Wiring

If the twisted-pair cable is to join two ports and either both ports are labeled
with an “X” (MDI-X) or neither port is labeled with an “X” (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.)

Brown Stripe

Figure B-2 Straight-through Wiring

B-3

C

ABLES

End A

EIA/TIA 568B RJ-45 Wiring Standard

10/100BASE-TX Crossover Cable

White/Orange Stripe

Orange

1
2
3
4
5
6
7
8

White/Green Stripe

Blue

White/Blue Stripe

Green

White/Brown Stripe

Brown Stripe

1
2
3
4
5
6
7
8

End B

Figure B-3 Crossover Wiring

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
length of any twisted-pair connection does not exceed 100 meters (328 feet)

that the

.

B-4

T

WISTED-PAIR CABLE AND PIN ASSIGNMENTS

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+)

2 Bi-directional Data One Minus

(BI_D1-)

3 Bi-directional Data Two Plus

(BI_D2+)

4 Bi-directional Data Three Plus

(BI_D3+)

5 Bi-directional Data Three Minus

(BI_D3-)

6 Bi-directional Data Two Minus

(BI_D2-)

7 Bi-directional Data One Plus

(BI_D4+)

8 Bi-directional Data Four Minus

(BI_D4-)

Bi-directional Data Two Plus
(BI_D2+)

Bi-directional Data Two Minus
(BI_D2-)

Bi-directional Data One Plus
(BI_D1+)

Bi-directional Data Four Plus
(BI_D4+)

Bi-directional Data Four Minus
(BI_D4-)

Bi-directional Data One Minus
(BI_D1-)

Bi-directional Data One Plus
(BI_D3+)

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. 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.”

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

B-5

C

ABLES

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 to 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

Physical Characteristics

Base Units

Ports

24 10/100BASE-TX, with auto-negotiation
2 1000BASE-T/SFP combination ports

Network Interface

Ports 1-24: RJ-45 connector, auto MDI/X

A

PPENDIX

S

PECIFICATIONS

C

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

Ports 25, 26: RJ-45 connector, auto MDI/X

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

Buffer Architecture

8 Mbytes

Aggregate Bandwidth

8.8 Gbps

Switching Database

8K MAC address entries

Power over Ethernet

Maximum output power per port: 15.4 W
Output voltage: 44 - 57 VDC
Maximum output current per port: 350 mA

Power Supply

Internal, auto-ranging transformer: 100 to 240 VAC, 47 to 63 Hz

C-1

S

PECIFICATIONS

Power Consumption

48 Watts (Switching system)
370 Watts (Power over Ethernet)

Maximum Current

6.8 A @ 110 VAC

3.2 A @ 240 VAC

LEDs

System: PWR, Diag, Stacking
Ports:

Weight

5.76 kg (12.70 lbs)

Size

44.0 x 41.0 x 4.3 cm (17.32 x 16.14 x 1.69 in.)

Temper atu 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)

Link/Act, PoE

Switch Features

Forwarding Mode

Store-and-forward

Throughput

Wire speed

Flow Control

Full Duplex: IEEE 802.3x
Half Duplex: Back pressure

C-2

Management Features

In-Band Management

Telnet, SSH, SSL/HTPS, 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 Ethernet

M

ANAGEMENT FEATURES

IEEE 802.3u Fast Ethernet
IEEE 802.3af Power over Ethernet
IEEE 802.1p priority tags
IEEE 802.3ac VLAN tagging
IEEE 802.1D Bridging
IEE 802.1Q VLAN Bridge Management
IEEE 802.3x full-duplex flow control
ISO/IEC 8802-3 Carrier sense multiple access with collision detection

(CSMA/CD)

Compliances

Emissions

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

C-3

S

PECIFICATIONS

Immunity

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

Safety

CSA/CUS (CSA 22.2.950 & UL 1950)
EN60950 (TÜV/GS)
IEC 60950 (CB)

C-4

A

PPENDIX

D

O

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

Product Number Description

SMC6824MPE 24 10BASE-T/100BASE-TX ports switch with

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

RDERING

two Gigabit combination ports with RJ-45
connectors and associated SFP transceiver slots

mini-GBIC transceiver

mini-GBIC transceiver

(SFP) mini-GBIC transceiver

I

NFORMATION

D-1

O

RDERING INFORMATION

D-2

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
9/125 micron core single-mode fiber cable.

1000BASE-SX

G

LOSSARY

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

Long-range Gigabit Ethernet over two strands of 9/125 micron core
single-mode fiber cable.

Auto-Negotiation

Signalling method allowing each node to select its optimum operational
mode (e.g., speed and duplex mode) based on the capabilities of the node to
which it is connected.

Glossary-1

G

LOSSARY

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,

with each

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.

Fast Ethernet

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

Glossary-2

Gigabit Ethernet

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

Full Duplex

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

IEEE

Institute of Electrical and Electronic Engineers.

IEEE 802.3

Defines carrier sense multiple access with collision detection (CSMA/CD)

G

LOSSARY

access method and physical layer specifications.

IEEE 802.3ab

Defines CSMA/CD access method and physical layer specifications for
1000BASE-T Gigabit Ethernet.

IEEE 802.3u

Defines CSMA/CD access method and physical layer specifications for
100BASE-TX Fast Ethernet.

IEEE 802.3x

Defines Ethernet frame start/stop requests and timers used for flow control
on full-duplex links.

IEEE 802.3z

Defines CSMA/CD access method and physical layer specifications for
1000BASE Gigabit Ethernet.

LAN Segment

Separate LAN or collision domain.

Glossary-3

G

LOSSARY

LED

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

Local Area Network (LAN)

A group of interconnected computer and support devices.

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.

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.

Network Diameter

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

RJ-45 Connector

A connector for twisted-pair wiring.

STP

Shielded twisted-pair cable.

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

G

LOSSARY

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

G

LOSSARY

Glossary-6

I

NDEX

Numerics

10 Mbps connectivity rules 4-8
100 Mbps connectivity rules 4-8
1000 Mbps connectivity rules 4-7
100BASE cable lengths 4-8
100BASE-TX ports 1-4
10BASE-T ports 1-4

A

accessories, ordering D-1
adhesive feet, attaching 3-6
air flow requirements 3-1
applications

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

connectivity rules

10 Mbps 4-8
100 Mbps 4-8
1000 Mbps 4-7

console port 1-3

pin assignments 3-11
contents of package 3-3
cooling problems A-2
cord sets, international 3-11

D

desktop mounting 3-6
device connections 4-1

E

electrical interference, avoiding 3-1
equipment checklist 3-3
Ethernet connectivity rules 4-8

B

brackets, attaching 3-5
buffer size C-1
buffers, saturation of 1-4

C

cable

Ethernet cable compatibility 3-2
fiber standards B-6
labeling and connection records 4-9

lengths 4-8
cleaning fiber terminators 4-5
compliances

EMC C-3

safety C-4

F

Fast Ethernet connectivity rules 4-8
features C-3

management 1-11

switch 1-8
fiber cables 4-5
flow control, IEEE 802.3x 1-4
front panel of switch 1-2
full duplex connectivity 2-1

G

Gigabit Ethernet cable lengths 4-7
grounding for racks 3-4

Index-1

I

NDEX

H

hot-swap, SFP 3-7

I

IEEE 802.3x flow control 1-4
indicators, LED 1-5
installation

connecting devices to the switch 4-3
desktop or shelf mounting 3-6
installing optional transceivers 3-7
network wiring connections 4-4
port connections 4-1
power requirements 3-1
problems A-2
rack mounting 3-4
SFP transceivers 3-7
site requirements 3-1

L

laser safety 4-5
LED indicators

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

location requirements 3-1

mounting the switch

in a rack 3-4

on a desktop or shelf 3-6
multimode fiber optic cables 4-5

N

network connections 4-1

O

optional transceivers

installation 3-7
ordering information D-1
out-of-band management 1-3

P

package contents 3-3
pin assignments B-1

console port 3-11

DB-9 3-11
port saturation 1-4
ports, connecting to 4-1
power, connecting to 3-10
problems, troubleshooting A-1

R

M

management

agent 1-3
features 1-11, C-3
out-of-band 1-3
SNMP 1-3
web-based 1-3

Index-2

rack mounting 3-4
rear panel of switch 1-2
RJ-45 port 1-4

connections 4-1

pinouts B-5
RMON 1-3
RS-232 port 1-3
rubber foot pads, attaching 3-6

I

NDEX

S

screws for rack mounting 3-3
serial

cable 1-3

port 1-3
single-mode fiber optic cables 4-5
site selelction 3-1
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
surge suppressor, using 3-1
switch architecture 1-2
switching

introduction to 2-1

method 1-2

T

Telnet A-3
temperature within a rack 3-4
troubleshooting

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

twisted-pair connections 4-1

V

VLAN tagging 2-5

W

web-based management 1-3

Index-3

FOR TECHNICAL SUPPORT, CALL:

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

(800) SMC-4-YOU; [phone]; Fax: [phone]

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

44 (0) 118 974 8700; Fax: [phone]

INTERNET

E-mail addresses:

[e-mail]
[e-mail]
[e-mail]

Driver updates:

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

Worl d 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 [phone]
Spain: 34-93-477-4935; Fax [phone]
UK: 44 (0) 1932 866553; Fax [phone]
France: 33 (0) 41 38 32 32; Fax [phone]
Italy: 39 (0) 335 5708602; Fax [phone]
Benelux: 31 33 455 72 88; Fax [phone]
Central Europe: 49 (0) 89 92861-0; Fax [phone]
Nordic: 46 (0) 868 70700; Fax [phone]
Eastern Europe: 34 -93-477-4920; Fax [phone]
Sub Saharian Africa: 27 0126610232; Fax [phone]
North West Africa: 216 71236616; Fax [phone]
CIS: 7 (095) 789 35 73; Fax [phone]
PRC (Beijing): 86-10-8251-1550; Fax [phone]
PRC (Shanghai): 86-21-6485-9922; Fax [phone]
Taiwan: 886-2-8797-8006; Fax [phone]
Asia Pacific: (65) 6 238 6556; Fax [phone]
Korea: 82-2-553-0860; Fax [phone]
Japan: 81-3-5645-5715; Fax [phone]
Australia: 61-2-8875-7887; Fax [phone]
India: 91 22 5696 2790; Fax [phone]
Middle East: 97 14 299 4466 Fax [phone]
Thailand: 66 2 651 8733 Fax [phone]

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

8

Phone: [phone]

Model Number: SMC6824MPE

Pub. Number: 150200048700A E102004-R01