Edge-Core ECS3610-28T Installation Manual

Installation Guide

www.edge-core.com

ECS3610-28T
28-Port
Layer 3
Fast Ethernet Switch

I

NSTALLATION

G

UIDE

ECS3610-28T FAST ETHERNET SWITCH

Layer 3 Switch
with 24 10/100BASE-TX (RJ-45) Ports,
2 Gigabit Combination Ports (RJ-45/SFP),
and 2 SFP Slots

ECS3610-28T

E122010-MW-R01

150200000125A

– 5 –

COMPLIANCES AND SAFETY
STATEMENTS

FCC - CLASS A

This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment
is operated in a commercial environment. This equipment generates, uses, and
can radiate radio frequency energy and, if not installed and used in accordance
with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will be required to correct the
interference at his own expense.

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) for RJ-45 connections - Category 3
or better for 10 Mbps connections, Category 5 or better for 100 Mbps
connections, Category 5, 5e, or 6 for 1000 Mbps connections. For fiber optic
connections, you may use 50/125 or 62.5/125 micron multimode fiber or 9/125
micron single-mode fiber.

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CE MARK DECLARATION OF CONFORMANCE FOR EMI AND SAFETY (EEC)

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:

RFI Emission:

◆ 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

Immunity:

◆ Product family standard according to EN 55024:1998

◆ Electrostatic Discharge according to EN 61000-4-2:1995

(Contact Discharge: ±4 kV, Air Discharge: ±8 kV)

◆ Radio-frequency electromagnetic field according to EN 61000-4-

3:1996
(80 - 1000 MHz with 1 kHz AM 80% Modulation: 3 V/m)

◆ Electrical fast transient/burst according to EN 61000-4-4:1995 (AC/

DC power supply: ±1 kV, Data/Signal lines: ±0.5 kV)

◆ Surge immunity test according to EN 61000-4-5:1995

(AC/DC Line to Line: ±1 kV, AC/DC Line to Earth: ±2 kV)

◆ Immunity to conducted disturbances, Induced by radio-frequency

fields: EN 61000-4-6:1996 (0.15 - 80 MHz with 1 kHz AM 80%
Modulation: 3 V/m)

◆ Power frequency magnetic field immunity test according to EN 61000-

4-8:1993
(1 A/m at frequency 50 Hz)

◆ Voltage dips, short interruptions and voltage variations immunity test

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

LVD:

◆ EN 60950-1:2006

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SAFETY COMPLIANCE

Warning: Fiber Optic Port Safety

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

Warnhinweis: Faseroptikanschlüsse - Optische Sicherheit

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

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.

CLASS I

LASER DEVICE

DISPOSITIF LASER

DE CLASSE I

LASERGER
DER KLASSE I

ÄT

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POWER CORD SAFETY

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

WARNING:

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

personnel only.

◆ 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

I

MPORTANT

!

Before making connections, make sure you have the correct cord

set. Check it (read the label on the cable) against the following:

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

AVERTISSEMENT:

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

un personnel 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 une configuration qui permet un branchement sur une entrée
d’appareil EN 60320/IEC 320.

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).

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.

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◆ 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).

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

à 2

m

ètres.

- 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).

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

la norme DK2 1a ou DK2 5a.

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

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

doit être de type HO3VVF3GO.75 (minimum).

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

WARNUNG:

Die Installation und der Ausbau des Geräts darf nur durch

Fachpersonal erfolgen.

◆ 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 einhalten.

Europe Das Netzkabel muß vom Typ HO3VVF3GO.75 (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

ENVIRONMENTAL STATEMENTS

The manufacturer of this product endeavours to sustain an environmentally­friendly 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.

W

ARNING

:

This product does not contain any serviceable user parts.

W

ARNING

:

Installation and removal of the unit must be carried out by

qualified personnel only.

W

ARNING

:

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.

W

ARNING

:

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.

C

AUTION

:

Wear an anti-static wrist strap or take other suitable
measures to prevent electrostatic discharge when handling this
equipment.

C

AUTION

:

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

C

AUTION

:

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

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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.

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– 15 –

ABOUT THIS GUIDE

PURPOSE

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

AUDIENCE

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

CONVENTIONS

The following conventions are used throughout this guide to show information:

RELATED PUBLICATIONS

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

The Management Guide

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

N

OTE

:

Emphasizes important information or calls your attention to

related features or instructions.

C

AUTION

:

Alerts you to a potential hazard that could cause loss of data,
or damage the system or equipment.

W

ARNING

:

Alerts you to a potential hazard that could cause personal

injury.

A

BOUT THIS GUIDE

– 16 –

REVISION HISTORY

This section summarizes the changes in each revision of this guide.

DECEMBER 2010 REVISION

This is the first revision of this guide.

– 17 –

CONTENTS

COMPLIANCES AND SAFETY STATEMENTS 5

A

BOUT THIS GUIDE 15

C

ONTENTS 17

T

ABLES 19

F

IGURES 21

1I

NTRODUCTION 23

Overview 23
Description of Hardware 25

2NETWORK PLANNING 31

Introduction to Switching 31
Application Examples 32
Application Notes 35

3INSTALLING THE SWITCH 37

Selecting a Site 37
Ethernet Cabling 38
Equipment Checklist 39
Mounting 40
Installing an Optional SFP Transceiver 45
Connecting to a Power Source 46
Connecting to the Console Port 47

4MAKING NETWORK CONNECTIONS 49

Connecting Network Devices 49
Twisted-Pair Devices 49

C

ONTENTS

– 18 –

Fiber Optic SFP Devices 52
Connectivity Rules 54
Cable Labeling and Connection Records 56

ATROUBLESHOOTING 57

Diagnosing Switch Indicators 57
Power and Cooling Problems 58
Installation 58
In-Band Access 59

BCABLES 61

Twisted-Pair Cable and Pin Assignments 61
Fiber Standards 65

CSPECIFICATIONS 67

Physical Characteristics 67
Switch Features 69
Management Features 69
Standards 70
Compliances 70

GLOSSARY 73

I

NDEX 79

– 19 –

TABLES

Table 1: Supported SFP Transceivers 26
Table 2: Port Status LEDs 28
Table 3: System Status LEDs 29
Table 4: Serial Cable Wiring 47
Table 5: Maximum 1000BASE-T Gigabit Ethernet Cable Length 54
Table 6: Maximum 1000BASE-SX Gigabit Ethernet Cable Lengths 54
Table 7: Maximum 1000BASE-LX Gigabit Ethernet Cable Length 55
Table 8: Maximum 1000BASE-LH Gigabit Ethernet Cable Length 55
Table 9: Maximum 100BASE-FX Cable Length 55
Table 10: Maximum Fast Ethernet Cable Lengths 55
Table 11: Maximum Ethernet Cable Length 55
Table 12: Troubleshooting Chart 57
Table 13: Power/RPS LEDs 58
Table 14: 10/100BASE-TX MDI and MDI-X Port Pinouts 62
Table 15: 1000BASE-T MDI and MDI-X Port Pinouts 64
Table 16: Fiber Standards 65

T

ABLES

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– 21 –

FIGURES

Figure 1: Front and Rear Panels 23
Figure 2: Port LEDs 27
Figure 3: System LEDs 29
Figure 4: Power Supply Sockets 30
Figure 5: Collapsed Backbone 32
Figure 6: Making VLAN Connections 33
Figure 7: IP Routing for Unicast Traffic 34
Figure 8: RJ-45 Connections 38
Figure 9: Attaching Brackets for Rack Mounting 41
Figure 10: Installing the Switch in a Rack 41
Figure 11: Attaching Brackets for Wall Mounting 42
Figure 12: Attaching Brackets for Wall Mounting 43
Figure 13: Attaching the Adhesive Feet 44
Figure 14: Inserting an SFP Transceiver into a Slot 45
Figure 15: Power Socket 46
Figure 16: Serial Port (DB-9 DTE) Pin-Out 47
Figure 17: Making Twisted-Pair Connections 50
Figure 18: Network Wiring Connections 51
Figure 19: Making Fiber Port Connections 53
Figure 20: RJ-45 Connector Pin Numbers 61
Figure 21: Straight-through Wiring 63
Figure 22: Crossover Wiring 63

F

IGURES

– 22 –

– 23 –

1 INTRODUCTION

OVERVIEW

This Fast Ethernet Switch is an intelligent multilayer switch (Layer 2/3/4) with
24 10/100BASE-TX ports, two 10/100/1000BASE-T combination ports

1

that are

shared with SFP transceiver slots (Ports 25-26), and two SFP slots.

This switch can easily tame your network with full support for Spanning Tree
Protocol, Multicast Switching, Virtual LANs, and IP routing. It brings order to
poorly performing networks by segregating them into separate broadcast
domains with IEEE 802.1Q compliant VLANs, empowers multimedia applications
with multicast switching and CoS services, and eliminates conventional router
bottlenecks.

This switch can be used to augment or completely replace slow legacy routers,
off-loading local IP traffic to release valuable resources for non-IP routing or
WAN access. With wire-speed performance for Layer 2 and Layer 3, this switch
can significantly improve the throughput between IP segments or VLANs.

Figure 1: Front and Rear Panels

1. If an SFP transceiver is plugged in, the RJ-45 interface is disabled for ports 25-26.

Port LEDs

Console Port

10/100 Mbps RJ-45 Ports

System LEDs

Power SocketRedundant Power Socket

RPS

RJ-45/SFP Combination Ports

SFP Slots

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Overview

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SWITCH ARCHITECTURE

This Fast Ethernet switch employs a wire-speed, non-blocking switching fabric.
This permits simultaneous wire-speed transport of multiple packets at low
latency on all ports. The switch also features full-duplex capability on all ports,
which effectively doubles the bandwidth of each connection.

For communications between different VLANs, this switch uses IP routing. For
communications within the same VLAN, it 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.

NETWORK MANAGEMENT OPTIONS

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

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

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Description of Hardware

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DESCRIPTION OF HARDWARE

RJ-45 PORTS

The switch contains 24 100BASE-TX RJ-45 ports that operate at 10/100 Mbps,
half or full duplex (Ports 1-24), and two 1000BASE-T RJ-45 ports that operate at
10 Mbps or 100 Mbps, half or full duplex, or at 1000 Mbps, full duplex (Ports 25­26 with no SFP transceiver inserted).

2

Because all ports on the switch support

automatic MDI/MDI-X operation, you can use straight-through cables for all
network connections to PCs or servers, or to other switches or hubs. (See

"10BASE-T/100BASE-TX Pin Assignments" on page 62 and "1000BASE-T Pin
Assignments" on page 64.)

Each of these ports support auto-negotiation, so the optimum transmission
mode (half or full duplex), and data rate (10, 100, or 1000 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 auto-negotiation of flow control, so the switch can
automatically prevent port buffers from becoming saturated.

SFP TRANSCEIVER SLOTS

Two Small Form Factor Pluggable (SFP) transceiver slots are shared with two RJ­45 ports (Ports 25-26). In its default configuration, if an SFP transceiver is
installed in a slot, the associated RJ-45 port is disabled and cannot be used. Two
more SFP slots (Ports 27-28) are provided as standard network ports.

The following table shows a list of transceiver types that have been tested with
the switch. For an updated list of vendors supplying these transceivers, contact
your local dealer. For information on the recommended standards for fiber optic
cabling, see "1000 Mbps Gigabit Ethernet Collision Domain" on page 54.

2. The switch can also be configured to force the use of an RJ-45 port or SFP slot, as
required.

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Description of Hardware

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CONSOLE PORT

The console port located on the left side of the front panel is a DB-9 connector.
This port enables a connection to a terminal for performing switch monitoring
and configuration functions. The terminal may be a PC or workstation running
terminal emulation software, or a terminal configured as a Data Terminal
Equipment (DTE) connection. A null-modem wired serial cable is supplied with
the switch for connecting to this interface.

Table 1: Supported SFP Transceivers

Media Standard Fiber Diameter

(microns)

Wavelength (nm)

Maximum Distance

*

* Maximum distance may vary for different SFP vendors.

1000BASE-SX 50/125 850 700 m

62.5/125 850 400 m

1000BASE-LX 50/125 1300 550 m

62.5/125 1300 550 m

9/125 1300 10 km

1000BASE-LH 9/125 1310 35 km

1550 80 km

100BASE-FX 62.5/125 1300 2 km

1000BASE-T 100 m

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Description of Hardware

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PORT AND SYSTEM STATUS LEDS

The switch 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.

Figure 2: Port LEDs

Port Status LEDs

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Description of Hardware

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Table 2: Port Status LEDs

LED Condition Status

10/100BASE-TX Ports 21-24

LNK/Act
(Link/Activity)

On/Flashing Amber Port has established a valid 10 Mbps network

connection. Flashing indicates activity.

On/Flashing Green Port has established a valid 100 Mbps network

connection. Flashing indicates activity.

Flashing alternately
Green and Amber

Port has been administratively disabled.

Off The link is down.

Duplex Green Port is operating at full duplex.

Off Port is operating at half duplex.

1000BASE-T Ports 25-26

*

* Ports 25-26 with no SFP transceiver inserted.

LNK/Act
(Link/Activity)

On/Flashing Amber Port has a valid link at 10 or 100 Mbps. Flashing

indicates activity.

On/Flashing Green Port has a valid link at 1000 Mbps. Flashing

indicates activity.

Flashing alternately
Green and Amber

Port has been administratively disabled.

Off The link is down.

Duplex Green Port is operating at full duplex.

Off Port is operating at half duplex.

SFP Slots 25-28

Duplex Green An SFP transceiver is plugged in.

Off No SFP transceiver is plugged in.

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Description of Hardware

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Figure 3: System LEDs

OPTIONAL REDUNDANT POWER SUPPLY

The switch supports an optional Redundant Power Supply (RPS) that can supply
power to the switch in the event the internal power supply fails.

Table 3: System Status LEDs

LED Condition Status

Diag Flashing Green System self-diagnostic test in progress.

Green System self-diagnostic test successfully

completed.

Amber System self-diagnostic test has detected a fault.

PWR Green Internal power is operating normally.

Amber Internal power supply failure.

Off Power off or failure.

RPS Green Redundant power supply is receiving power.

Amber Fault in redundant power supply, including

thermal or fan failure.

Off Redundant power supply is off or not plugged in.

System Status LEDs

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Description of Hardware

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POWER SUPPLY SOCKETS

There are two power sockets on the rear panel of the switch. The standard
power socket is for an AC power cord. The socket labeled “RPS” is for the
optional Redundant Power Supply (RPS).

Figure 4: Power Supply Sockets

Power Socket

Redundant Power Socket

RPS

– 31 –

2 NETWORK PLANNING

INTRODUCTION TO SWITCHING

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

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

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

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

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Application Examples

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APPLICATION EXAMPLES

This Fast Ethernet switch is not only designed to segment your network, but also
to provide a wide range of options in setting up network connections and linking
VLANs or IP subnets. Some typical applications are described below.

COLLAPSED BACKBONE

This switch is an excellent choice for mixed Ethernet, Fast Ethernet, and Gigabit
Ethernet installations where significant growth is expected in the near future. In
a basic stand-alone configuration, it can provide direct full-duplex connections
for up to 28 workstations or servers. You can easily build on this basic
configuration, adding direct full-duplex connections to workstations or servers.
When the time comes for further expansion, just connect to another 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 1 Gbps full-duplex connections to servers.

Figure 5: Collapsed Backbone

Servers

1 Gbps

Full Duplex

Workstations

100 Mbps
Full Duplex

Workstations

10/100 Mbps
Full Duplex

...

...

...

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| Network Planning

Application Examples

– 33 –

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.

This switch also supports multiple spanning trees which allow VLAN groups to
maintain a more stable path between all VLAN members. This can reduce the
overall amount of protocol traffic crossing the network, and provide a shorter
reconfiguration time if any link in the spanning tree fails.

At Layer 3, VLANs are used to create an IP interface, where one or more ports
are assigned to the same IP segment. Traffic is automatically routed between
different IP segments on the same switch, without any need to configure routing
protocols.

Figure 6: Making VLAN Connections

N

OTE

:

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

VLAN tags, use untagged ports.

Finance

Marketing

VLAN 3

Untagged Ports

VLAN

unaware

switch

Tagged Port

VLAN
aware
switch

Tagged

Ports

Finance

VLAN 3

R&D

VLAN 2

Testing

R&D

Testing

VLAN 1

VLAN 2

VLAN 4

VLAN 1

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Application Examples

– 34 –

USING LAYER 3 ROUTING

VLANs can significantly enhance network performance and security. However, if
you use conventional routers to interconnect VLANs, you can lose most of your
performance advantage. This device is a routing switch that provides wire-speed
routing, which allows you to eliminate your conventional IP routers, except for a
router to handle non-IP protocols and a gateway router linked to the WAN. Just
assign an IP address to any VLANs that need to communicate. The switch will
continue to segregate Layer 2 traffic based on VLANs, but will now provide inter­VLAN connections for IP applications. It will perform IP routing for specified
VLAN groups, a directly connected subnetwork, a remote IP subnetwork or host
address, a subnetwork broadcast address, or an IP multicast address.

Figure 7: IP Routing for Unicast Traffic

IP Network 1

R&D

VLAN 1

VLAN 2

Testing

IP Network 2

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Application Notes

– 35 –

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. For network applications that require routing between dissimilar network

types, you can attach these switches directly to a multi-protocol router.
However, if you have to interconnect distinct VLANs or IP subnets, you can
take advantage of the wire-speed Layer 3 routing provided by this switch.

3. As a general rule, the length of fiber optic cable for a single switched link

should not exceed:

■

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

■

1000BASE-LX: 10 km (6.2 miles) for single-mode fiber

■

1000BASE-LH: 80 km (50 miles) for single-mode fiber

■

100BASE-FX: 2 km (1.2 miles) for multimode fiber

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

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Application Notes

– 36 –

– 37 –

3 INSTALLING THE SWITCH

SELECTING A SITE

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:

■

restrict access to authorized service personnel in accordance with IEC
60950-1. A restricted access location is one where access is secure and
limited to service personnel who have a special key, or other means of
security

■

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

■

be able to maintain its temperature within 0 to 40 °C (32 to 104 °F)
and its humidity within 5% to 95%, non-condensing

■

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

■

be accessible for installing, cabling and maintaining the devices

■

allow the status LEDs to be clearly visible

◆ Make sure twisted-pair cable is always routed away from power lines,

fluorescent lighting fixtures and other sources of electrical interference,
such as radios and transmitters.

◆ Make sure that the unit is connected to a separate grounded power outlet

that provides 100 to 240 VAC, 50 to 60 Hz, is within 2 m (6.6 feet) of each
device and is powered from an independent circuit breaker. As with any
equipment, using a filter or surge suppressor is recommended. Verify that
the external power requirements for the selected option can be met as
listed under

"Power Supply" on page 68.

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| Installing the Switch

Ethernet Cabling

– 38 –

ETHERNET CABLING

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

◆ Cable type: Unshielded twisted pair (UTP) or shielded twisted pair (STP)

cables with RJ-45 connectors; Category 3 or better for 10BASE-T, Category
5 or better for 100BASE-TX, and Category 5, 5e or 6 for 1000BASE-T.

◆ Protection from radio frequency interference emissions

◆ Electrical surge suppression

◆ Separation of electrical wires (switch related or other) and electromagnetic

fields from data based network wiring

◆ Safe connections with no damaged cables, connectors or shields

Figure 8: RJ-45 Connections

RJ-45 Connector

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| Installing the Switch

Equipment Checklist

– 39 –

EQUIPMENT CHECKLIST

After unpacking this 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

◆ 28-port Fast Ethernet Switch (ECS3610-28T)

◆ Four adhesive foot pads

◆ Bracket Mounting Kit containing two brackets, various screws for attaching

the brackets to the switch, and plastic wall anchors for attaching the unit to
a wall

◆ Power cord—either US, Continental Europe or UK

◆ Console cable (RS-232)

◆ This Installation Guide

◆ Management Guide CD

OPTIONAL RACK-MOUNTING EQUIPMENT

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

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

are not included

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

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| Installing the Switch

Mounting

– 40 –

MOUNTING

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

RACK MOUNTING

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

◆ Temperature: Since the temperature within a rack assembly may be higher

than the ambient room temperature, check that the rack-environment
temperature is within the specified operating temperature range. (See

page 68.)

◆ 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.

To rack-mount devices:

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

Mounting Kit.

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| Installing the Switch

Mounting

– 41 –

Figure 9: Attaching Brackets for Rack Mounting

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

provided). Be sure to secure the lower rack-mounting screws first to
prevent the brackets being bent by the weight of the switch.

Figure 10: Installing the Switch in a Rack

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| Installing the Switch

Mounting

– 42 –

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

in any order.

4. If also installing an RPS, mount it in the rack below the other devices.

WALL MOUNTING

To attach the switch to a vertical surface:

1. Attach the wall-mount brackets to the switch using the screws provided with

the Bracket Mounting Kit.

Figure 11: Attaching Brackets for Wall Mounting

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| Installing the Switch

Mounting

– 43 –

2. To mount the switch on a wall, first drill two holes 22 mm deep and 3.5 mm

in diameter, and press two wall anchors (provided with the switch) firmly
into the drilled holes until they are flush with the surface of the wall.

Figure 12: Attaching Brackets for Wall Mounting

3. Insert two 6 x 1 inch screws (not provided with the switch) into the wall

anchors, leaving the screw head protruding about 1/8 inch from the wall.

4. Push the wall-mount brackets over the screw head, sliding the switch down

so that the screw head enters the narrow section of the key slot.

5. Ensure that the unit is oriented in a manner that makes the LEDs visible.

wall anchor

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| Installing the Switch

Mounting

– 44 –

DESKTOP OR SHELF MOUNTING

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

Figure 13: 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 multiple switches, attach four adhesive feet to each one. Place

each device squarely on top of the one below, in any order.

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| Installing the Switch

Installing an Optional SFP Transceiver

– 45 –

INSTALLING AN OPTIONAL SFP TRANSCEIVER

Figure 14: Inserting an SFP Transceiver into a Slot

The SFP slots support the following optional SFP transceivers:

◆ 1000BASE-SX

◆ 1000BASE-LX

◆ 1000BASE-LH

◆ 100BASE- FX

To install an SFP transceiver, do the following:

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

transceiver type.

2. Insert the transceiver with the optical connector facing outward and the slot

connector facing down. Note that SFP transceivers are keyed so they can
only be installed in one orientation.

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

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| Installing the Switch

Connecting to a Power Source

– 46 –

CONNECTING TO A POWER SOURCE

To connect a switch to a power source:

1. First verify that the external AC power supply can provide 100 to 240 VAC,

50-60 Hz, 2 A minimum.

Figure 15: Power Socket

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

3. Insert the power cable plug directly into the socket located at the back of

the device.

4. 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.

N

OTE

:

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.

N

OTE

:

SFP transceivers are not provided in the switch package.

N

OTE

:

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 socket type
in your country.

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| Installing the Switch

Connecting to the Console Port

– 47 –

5. If you have purchased a Redundant Power Supply, connect it to the switch

and to an AC power source now, following the instructions included with the
package.

CONNECTING TO THE CONSOLE PORT

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

Figure 16: Serial Port (DB-9 DTE) Pin-Out

WIRING MAP FOR SERIAL CABLE

Table 4: Serial Cable Wiring

Switch’s 9-Pin
Serial Port

Null Modem PC’s 9-Pin

DTE 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.

1

5

6 9

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| Installing the Switch

Connecting to the Console Port

– 48 –

The serial port’s configuration requirements are as follows:

◆ Default Baud rate—115,200 bps

◆ Character Size—8 Characters

◆ Parity—None

◆ Stop bit—One

◆ Data bits—8

◆ Flow control—none

– 49 –

4 MAKING NETWORK CONNECTIONS

CONNECTING NETWORK DEVICES

The 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 optional SFP transceivers.

TWISTED-PAIR DEVICES

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

CABLING GUIDELINES

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

See Appendix B for further information on cabling.

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.

C

AUTION

:

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.

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| Making Network Connections

Twisted-Pair Devices

– 50 –

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 17: Making Twisted-Pair Connections

2. If the device is a network card and the switch is in the wiring closet, attach

the other end of the cable segment to a modular wall outlet that is
connected to the wiring closet. (See the section “Network Wiring

Connections.”) Otherwise, attach the other end to an available port on the

switch.

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

3. As each connection is made, the Link LED (on the switch) corresponding to

each port will light green or amber to indicate that the connection is valid.

N

OTE

:

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.

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| Making Network Connections

Twisted-Pair Devices

– 51 –

NETWORK WIRING CONNECTIONS

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

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

other end to the patch panel.

2. If not already in place, attach one end of a cable segment to the back of the

patch panel where the punch-down block is located, and the other end to a
modular wall outlet.

3. Label the cables to simplify future troubleshooting. See "Cable Labeling and

Connection Records" on page 56.

Figure 18: Network Wiring Connections

Equipment Rack
(side view)

Switch

Patch Panel

Punch-Down Block

Wall

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| Making Network Connections

Fiber Optic SFP Devices

– 52 –

FIBER OPTIC SFP DEVICES

An optional SFP transceiver (1000BASE-SX/LX/LH or 100BASE-FX) can be used
for a backbone connection between switches, or for connecting to a high-speed
server.

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

1. Remove and keep the LC port’s rubber plug. When not connected to a fiber

cable, the rubber plug should be replaced to protect the optics.

2. Check that the fiber terminators are clean. You can clean the cable plugs by

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

3. Connect one end of the cable to the LC port on the switch and the other end

to the LC port on the other device. Since LC connectors are keyed, the cable
can be attached in only one orientation.

W

ARNING

:

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.

W

ARNING

:

When selecting a fiber SFP device, considering safety, please
make sure that it can function at a temperature that is not less than the
recommended maximum operational temperature of the product. You
must also use an approved Laser Class 1 SFP transceiver.

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| Making Network Connections

Fiber Optic SFP Devices

– 53 –

Figure 19: Making Fiber Port Connections

4. As a connection is made, check the Link LED on the switch corresponding to

the port to be sure that the connection is valid.

The 1000BASE-SX/LX/LH fiber optic ports operate at 1 Gbps full duplex. The
100BASE-FX fiber optic ports operate at 100 Mbps full duplex. The maximum
length for fiber optic cable depend on the fiber type as listed under "1000 Mbps

Gigabit Ethernet Collision Domain" on page 54. and "100 Mbps Fast Ethernet
Collision Domain" on page 55.

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| Making Network Connections

Connectivity Rules

– 54 –

CONNECTIVITY RULES

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

1000BASE-T CABLE REQUIREMENTS

All Category 5 UTP cables that are used for 100BASE-TX connections should also
work for 1000BASE-T, providing that all four wire pairs are connected. However,
it is recommended that for all critical connections, or any new cable installations,
Category 5e (enhanced Category 5) or Category 6 cable should be used. The
Category 5e and 6 specifications include test parameters that are only
recommendations for Category 5. Therefore, the first step in preparing existing
Category 5 cabling for running 1000BASE-T is a simple test of the cable
installation to be sure that it complies with the IEEE 802.3-2005 standards.

1000 MBPS GIGABIT ETHERNET COLLISION DOMAIN

Table 5: Maximum 1000BASE-T Gigabit Ethernet Cable Length

Cable Type Maximum Cable Length Connector

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

Table 6: Maximum 1000BASE-SX Gigabit Ethernet Cable Lengths

Fiber Size Fiber Bandwidth Maximum Cable Length Connector

62.5/125 micron
multimode fiber

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

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

50/125 micron
multimode fiber

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

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

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| Making Network Connections

Connectivity Rules

– 55 –

100 MBPS FAST ETHERNET COLLISION DOMAIN

10 MBPS ETHERNET COLLISION DOMAIN

Table 7: Maximum 1000BASE-LX Gigabit Ethernet Cable Length

Fiber Size Fiber Bandwidth Maximum Cable Length Connector

9/125 micron single­mode fiber

N/A 2 m - 5 km (7 ft - 3.2 miles) LC

Table 8: Maximum 1000BASE-LH Gigabit Ethernet Cable Length

Fiber Size Fiber Bandwidth Maximum Cable Length Connector

9/125 micron single­mode fiber

N/A 2 m - 70 km

(7 ft - 43.5 miles)

LC

Table 9: Maximum 100BASE-FX Cable Length

Type Cable Type Max. Cable Length Connector

100BASE-FX 9/125 micron single-mode

fiber

2 m - 20 km
(7ft - 12.43 miles)

LC

62.5/125 or 50/125
multimode fiber

up to 2 km (1.24 miles) LC

Table 10: Maximum Fast Ethernet Cable Lengths

Type Cable Type Max. Cable Length Connector

100BASE-TX Category 5 or better 100-ohm

UTP or STP

100 m (328 ft) RJ-45

Table 11: Maximum Ethernet Cable Length

Type Cable Type Max. Cable Length Connector

10BASE-T Category 3 or better 100-ohm UTP 100 m (328 ft) RJ-45

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| Making Network Connections

Cable Labeling and Connection Records

– 56 –

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.

– 57 –

A TROUBLESHOOTING

DIAGNOSING SWITCH INDICATORS

Table 12: Troubleshooting Chart

Symptom Action

Power LED is Off

◆ Check connections between the switch, the power cord and

the wall outlet.

◆ Contact your dealer for assistance.

Power LED is Amber

◆ Internal power supply has failed. Contact your dealer for

assistance.

Diag LED is Amber

◆ Power cycle the switch to try and clear the condition.

◆ If the condition does not clear, contact your dealer for

assistance.

Link LED is alternately
flashing Green and

Amber

◆ Port has been administratively disabled.

Link 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.

◆ Verify that the proper cable type is used and its length does

not exceed specified limits.

◆ Check the adapter on the attached device and cable

connections for possible defects. Replace the defective
adapter or cable if necessary.

A

PPENDIX

A

| Troubleshooting

Power and Cooling Problems

– 58 –

DIAGNOSING POWER PROBLEMS WITH THE LEDS

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

POWER AND COOLING PROBLEMS

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

INSTALLATION

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

Table 13: Power/RPS LEDs

Power LED RPU LED Status

Green Green Internal power functioning normally; RPS is present.

Green Amber Internal power functioning normally; RPS plugged in but

faulty.

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

Amber Green Internal power faulty; RPS delivering power.

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

A

PPENDIX

A

| Troubleshooting

In-Band Access

– 59 –

IN-BAND ACCESS

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

N

OTE

:

The management agent accepts up to four simultaneous Telnet
sessions. If the maximum number of sessions already exists, an
additional Telnet connection will not be able to log into the system.

A

PPENDIX

A

| Troubleshooting

In-Band Access

– 60 –

– 61 –

B CABLES

TWISTED-PAIR CABLE AND PIN ASSIGNMENTS

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. Also, an RJ-45
connector must be attached to both ends of the cable.

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

Figure 20: RJ-45 Connector Pin Numbers

C

AUTION

:

DO NOT plug a phone jack connector into any RJ-45 port. Use
only twisted-pair cables with RJ-45 connectors that conform with FCC
standards.

C

AUTION

:

Each wire pair must be attached to the RJ-45 connectors in a
specific orientation.

8

1

1

8

A

PPENDIX

B

| Cables

Twisted-Pair Cable and Pin Assignments

– 62 –

10BASE-T/100BASE-TX PIN ASSIGNMENTS

Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for RJ-45
connections: 100-ohm Category 3 or better cable for 10 Mbps connections, or
100-ohm Category 5 or better cable for 100 Mbps connections. Also be sure

that

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

The RJ-45 ports on the switch base unit support automatic MDI/MDI-X
operation, so 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.

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.)

You must connect all four wire pairs as shown in the following diagram to
support Gigabit Ethernet.

Table 14: 10/100BASE-TX MDI and MDI-X Port Pinouts

Pin MDI Signal Name MDI-X Signal Name

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

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

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

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

4,5,7,8 Not used Not used

A

PPENDIX

B

| Cables

Twisted-Pair Cable and Pin Assignments

– 63 –

Figure 21: Straight-through Wiring

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.)

You must connect all four wire pairs as shown in the following diagram to
support Gigabit Ethernet.

Figure 22: Crossover Wiring

White/Orange Stripe

Orange

White/Green Stripe

Green

1
2
3
4
5
6
7
8

1
2
3
4
5
6
7
8

EIA/TIA 568B RJ-45 Wiring Standard

10/100BASE-TX Straight-through Cable

End A

End B

Blue

White/Blue Stripe

Brown

White/Brown Stripe

White/Orange Stripe

Orange

White/Green Stripe

1
2
3
4
5
6
7
8

1
2
3
4
5
6
7
8

EIA/TIA 568B RJ-45 Wiring Standard

10/100BASE-TX Crossover Cable

End A

End B

Green

Blue

White/Blue Stripe

Brown

White/Brown Stripe

A

PPENDIX

B

| Cables

Twisted-Pair Cable and Pin Assignments

– 64 –

1000BASE-T PIN ASSIGNMENTS

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

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

Use 100-ohm Category 5, 5e or 6 unshielded twisted-pair (UTP) or shielded
twisted-pair (STP) cable for 1000BASE-T connections. Also be sure

that the

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

.

CABLE TESTING FOR EXISTING CATEGORY 5 CABLE

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

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

Table 15: 1000BASE-T MDI and MDI-X Port Pinouts

Pin MDI Signal Name MDI-X Signal Name

1 Bi-directional Pair A Plus (BI_DA+) Bi-directional Pair B Plus (BI_DB+)

2 Bi-directional Pair A Minus (BI_DA-) Bi-directional Pair B Minus (BI_DB-)

3 Bi-directional Pair B Plus (BI_DB+) Bi-directional Pair A Plus (BI_DA+)

4 Bi-directional Pair C Plus (BI_DC+) Bi-directional Pair D Plus (BI_DD+)

5 Bi-directional Pair C Minus (BI_DC-) Bi-directional Pair D Minus (BI_DD-)

6 Bi-directional Pair B Minus (BI_DB-) Bi-directional Pair A Minus (BI_DA-)

7 Bi-directional Pair D Plus (BI_DD+) Bi-directional Pair C Plus (BI_DC+)

8 Bi-directional Pair D Minus (BI_DD-) Bi-directional Pair C Minus (BI_DC-)

A

PPENDIX

B

| Cables

Fiber Standards

– 65 –

ADJUSTING EXISTING CATEGORY 5 CABLING TO RUN 1000BASE-T

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

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

Category 6 cables.

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

3. Reconnect some of the connectors in the link.

FIBER STANDARDS

The International Telecommunication Union (ITU-T) has standardized various
fiber types for data networks. These are summarized in the following table.

Table 16: Fiber Standards

ITU-T
Standard

Description Application

G.651 Multimode Fiber

50/125-micron core

Short-reach connections in the 1300­nm or 850-nm band

G.652 Non-Dispersion-Shifted Fiber

Single-mode, 9/125-micron core

Longer spans and extended reach.
Optimized for operation in the 1310­nm band. but can also be used in the
1550-nm band

G.652.C Low Water Peak Non-

Dispersion-Shifted Fiber

Single-mode, 9/125-micron core

Longer spans and extended reach.
Optimized for wavelength-division
multiplexing (WDM) transmission
across wavelengths from 1285 to
1625 nm. The zero dispersion
wavelength is in the 1310-nm region.

G.653 Dispersion-Shifted Fiber

Single-mode, 9/125-micron core

Longer spans and extended reach.
Optimized for operation in the region
from 1500 to 1600-nm.

A

PPENDIX

B

| Cables

Fiber Standards

– 66 –

G.654 1550-nm Loss-Minimized Fiber

Single-mode, 9/125-micron core

Extended long-haul applications.
Optimized for high-power
transmission in the 1500 to 1600-nm
region, with low loss in the 1550-nm
band.

G.655 Non-Zero Dispersion-Shifted

Fiber

Single-mode, 9/125-micron core

Extended long-haul applications.
Optimized for high-power dense
wavelength-division multiplexing
(DWDM) operation in the region from
1500 to 1600-nm.

Table 16: Fiber Standards (Continued)

ITU-T
Standard

Description Application

– 67 –

C SPECIFICATIONS

PHYSICAL CHARACTERISTICS

PORTS

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

NETWORK INTERFACE

Ports 1-24: RJ-45 connector, auto MDI/X
Ports 25-26: RJ-45/SFP combo port, auto-negotiation, auto MDI/X
RJ-45 ports

10BASE-T: RJ-45 (100-ohm, UTP cable; Category 3 or better)
100BASE-TX: RJ-45 (100-ohm, UTP cable; Category 5 or better)
1000BASE-T: RJ-45 (100-ohm, UTP or STP cable; Category 5, 5e or 6)
*Maximum Cable Length - 100 m (328 ft)

BUFFER ARCHITECTURE

1 Mbyte

AGGREGATE BANDWIDTH

12.8 Gbps

SWITCHING DATABASE

16K MAC address entries and 1K static MAC addresses (shared space),
4K IP entries in host table,
8K IP entries in routing table,
4K ARP entries, 256 static ARP entries,
256 static IP routes, 512 IP interfaces,
1K L2/L3 multicast groups

A

PPENDIX

C

| Specifications

Physical Characteristics

– 68 –

LEDS

System: Diag, PWR, RPS
Port: Link/Act (link, activity, speed), Duplex

WEIGHT

1.96 kg (3.67 lbs)

SIZE

44.0 x 23.0 x 4.4 cm (17.32 x 9.06 x 1.73 in.)

TEMPERATURE

Operating: 0 to 40 °C (32 to 104 °F)
Storage: -40 to 70 °C (-40 to 158 °F)

HUMIDITY

Operating: 10% to 90% (non-condensing)

AC INPUT

100 to 240 V, 50-60 Hz, 0.7A

DC INPUT

12VDC , 2.5 A

POWER SUPPLY

Internal, auto-ranging transformer: 100 to 240 VAC, 47 to 63 Hz
External, supports connection for redundant power supply

POWER CONSUMPTION

27 Watts maximum

A

PPENDIX

C

| Specifications

Switch Features

– 69 –

MAXIMUM CURRENT

0.25 A @ 110 VAC

0.12 A @ 240 VAC

SWITCH FEATURES

FORWARDING MODE

Store-and-forward

THROUGHPUT

Wire speed

FLOW CONTROL

Full Duplex: IEEE 802.3x
Half Duplex: Back pressure

MANAGEMENT FEATURES

IN-BAND MANAGEMENT

Web, Telnet, SSH, or SNMP manager

OUT-OF-BAND MANAGEMENT

RS-232 console port

SOFTWARE LOADING

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

A

PPENDIX

C

| Specifications

Standards

– 70 –

STANDARDS

IEEE 802.3-2005 Ethernet Access

Ethernet, Fast Ethernet, Gigabit Ethernet
Link Aggregation Control Protocol (LACP)

Full-duplex flow control (ISO/IEC 8802-3)
IEEE 802.1p priority tags
IEEE 802.3ac VLAN tagging

COMPLIANCES

CE MARK (Safety and EMC for Europe)

EMISSIONS

FCC Class A
EN55022 (CISPR 22) Class A
EN 61000-3-2 Power Line harmonics
EN 61000-3-3 Voltage fluctuations

IMMUNITY

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

GROUNDING

EN 300 253

A

PPENDIX

C

| Specifications

Compliances

– 71 –

ENVIRONMENTAL

IEC 68-2-36, IEC 68-2-6 Vibration
IEC 68-2-29 Shock
IEC 68-2-32 Drop
RoHS compliant
WEEE Directive 2002/96/EC

A

PPENDIX

C

| Specifications

Compliances

– 72 –

– 73 –

GLOSSARY

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-LH

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

1000BASE-LX

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

1000BASE-SX

IEEE 802.3z specification for Gigabit Ethernet over two strands of 50/125 or

62.5/125 micron core fiber cable.

1000BASE-T

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

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.

G

LOSSARY

– 74 –

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 DOMAIN

Single CSMA/CD LAN segment.

CSMA/CD

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

END STATION

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

ETHERNET

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

FAST ETHERNET

A 100 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.

GIGABIT ETHERNET

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

G

LOSSARY

– 75 –

IEEE

Institute of Electrical and Electronic Engineers.

IEEE 802.3

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

IEEE 802.3AB

Defines CSMA/CD access method and physical layer specifications for
1000BASE-T Gigabit Ethernet. (Now incorporated in IEEE 802.3-2005.)

IEEE 802.3U

Defines CSMA/CD access method and physical layer specifications for 100BASE­TX Fast Ethernet. (Now incorporated in IEEE 802.3-2005.)

IEEE 802.3X

Defines Ethernet frame start/stop requests and timers used for flow control on
full-duplex links. (Now incorporated in IEEE 802.3-2005.)

IEEE 802.3Z

Defines CSMA/CD access method and physical layer specifications for 1000BASE
Gigabit Ethernet. (Now incorporated in IEEE 802.3-2005.)

LAN SEGMENT

Separate LAN or collision domain.

LED

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

LOCAL AREA NETWORK (LAN)

A group of interconnected computer and support devices.

G

LOSSARY

– 76 –

MEDIA ACCESS CONTROL (MAC)

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

MIB

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

MODAL BANDWIDTH

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

NETWORK DIAMETER

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

RJ-45 CONNECTOR

A connector for twisted-pair wiring.

SWITCHED PORTS

Ports that are on separate collision domains or LAN segments.

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.

USER DATAGRAM PROTOCOL (UDP)

UDP provides a datagram mode for packet-switched communications. It uses IP

as the underlying transport mechanism to provide access to IP-like services.

G

LOSSARY

– 77 –

UDP packets are delivered just like IP packets – connection-less datagrams that
may be discarded before reaching their targets. UDP is useful when TCP would
be too complex, too slow, or just unnecessary.

UTP

Unshielded twisted-pair cable.

VIRTUAL LAN (VLAN)

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

G

LOSSARY

– 78 –

– 79 –

INDEX

NUMERICS

10 Mbps connectivity rules 55
100 Mbps connectivity rules 55
1000 Mbps connectivity rules 54
1000BASE-LH fiber cable Lengths 55
1000BASE-LX fiber cable Lengths 55
1000BASE-SX fiber cable Lengths 54
1000BASE-T

pin assignments

64

100BASE-TX, cable lengths 55
10BASE-T, cable lengths 55
10GBASE-LR

modules

30

10GBASE-SR

modules

30

A

adhesive feet, attaching 44
applications

central wiring closet

33

collapsed backbone 32
remote connections with fiber 33, 34
VLAN connections 33

B

buffer size 67

C

cable

Ethernet cable compatibility

38

fiber standards 65
labeling and connection records 56
lengths 55

cleaning fiber terminators 52
compliances

EMC

70

safety 71

connectivity rules

10 Mbps

55

100 Mbps 55

1000 Mbps 54
console port, pin assignments 47
contents of package 39
cooling problems 58
cord sets, international 46

D

desktop mounting 44
device connections 49

E

electrical interference, avoiding 37
equipment checklist 39
Ethernet connectivity rules 55
expansion modules 30

F

Fast Ethernet connectivity rules 55
features 69

switch 30
fiber cables 52
front panel of switch 23
full duplex connectivity 31

G

Gigabit Ethernet cable lengths 54
grounding for racks 40

I

indicators, LED 27
installation

connecting devices to the switch

50

desktop or shelf mounting 44

network wiring connections 51

port connections 49, 52

power requirements 37

problems 59

rack mounting 40

site requirements 37

L

laser safety 52
LC port connections 52
LED indicators

DIAG

29

PWR 29
location requirements 37

I

NDEX

– 80 –

M

management

agent

24

features 69
SNMP 24

mounting the switch

in a rack

40

on a desktop or shelf 44

multimode fiber optic cables 52

N

network

connections

49, 52

examples 32

P

package contents 39
pin assignments 61

1000BASE-T 64
10BASE-T/100BASE-TX 62
console port 47

DB-9 47
ports, connecting to 49, 52
power, connecting to 46
problems

troubleshooting RPS

58

R

rack mounting 40
rear panel of switch 23
RJ-45 port

connections

49

pinouts 58, 64
rubber foot pads, attaching 44

S

screws for rack mounting 39
SFP transceiver slots 25
single-mode fiber optic cables 52
site selelction 37
SNMP agent 24
specifications

compliances

70

environmental 68

power 68
standards

compliance

70

IEEE 70
status LEDs 27
surge suppressor, using 37

switch architecture 24

T

Telnet 59
temperature within a rack 40
troubleshooting

in-band access

59

power and cooling problems 58
RPS indicators 58
stack troubleshooting 59

twisted-pair connections 49

V

VLANS, tagging 33

ECS3610-28T

E122010-MW-R01

150200000125A