Edge-Core ES3526S Installation Manual

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ES3526S
24-Port 100BASE-FX
Fast Ethernet Switch

Installation Guide

www.edge-core.com

Installation Guide

Fast Ethernet Switch

FTTH Switch with 24 100BASE-FX Single-fiber WDM (SC) Ports
and 2 Combination 1000BASE-T/SFP Uplink ports

ES3526S
E082005-R01
150200052900A

Installation Guide

Fast Ethernet Switch

FTTH Switch with 24 100BASE-FX Single-fiber WDM (SC) Ports
and 2 Combination 1000BASE-T/SFP Uplink ports

ES3526S
E082005-R01
150200052900A

Compliances and Safety Warnings

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.

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.

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)

i

• 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: • EN60950-1 :2001

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

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

Safety Compliance

Warning: Fiber Optic Port Safety

CLASS I

LASER DEVICE

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

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

DISPOSITIF LASER

DE CLASSE I

Warnhinweis: Faseroptikanschlüsse - Optische Sicherheit

LASERGER

DER KLASSE I

ÄT

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.

ii

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

WAR NING: 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
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

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

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

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

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

DK2-1a or DK2-5a.

with a 5 A fuse which complies with BS1362.

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

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

IEC-320 receptacle.

†

supplies. If your supplies are of IT type, this unit

iii

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.

• 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 -

Etats-Unis et
Canada:

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

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

Europe La prise secteur doit être conforme aux normes CEE 7/7 (“SCHUKO”)

Il doit être agréé dans le pays d’utilisation

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

Les spe'cifications minimales pour un cable flexible sont AWG No.
18, ouAWG No. 16 pour un cable de longueur infe'rieure a` 2 me'tres.

- type SV ou SJ

- 3 conducteurs

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

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

norme DK2 1a ou DK2 5a.

LE cordon secteur doit porter la mention <HAR> ou <BASEC> et doit
être de type HO3VVF3GO.75 (minimum).

iv

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

Europe Das Netzkabel muß vom Typ HO3VVF3GO.75 (Mindestanforderung)

einhalten.

sein und die Aufschrift <HAR> oder <BASEC> tragen.
Der Netzstecker muß die Norm CEE 7/7 erfüllen (”SCHUKO”).

Warnings and Cautionary Messages

Warning : This product does not contain any serviceable user parts.
Warning : Installation and removal of the unit must be carried out by qualified

personnel only.

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: 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.

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

electrostatic discharge when handling this equipment.

v

Warnings (in German)

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

benötigen.

Achtung: Installation und Deinstallation des Gerätes müssen von qualifiziertem

Servicepersonal durchgeführt werden.

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

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

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

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

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 ES3526S switch, including its physical and
performance-related characteristics, and how to install it.

vi

Audience

This guide is for system administrators with a working knowledge of network
management. You should be familiar with switching and networking concepts.

Zielgruppe Dieser Anleitung ist fuer Systemadministratoren mit Erfahrung im
Netzwerkmangement. Sie sollten mit Switch- und Netzwerkkonzepten vertraut sein.

Related Publications

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

The Fast Ethernet Switch Management Guide

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

vii

viii

Contents

Chapter 1: Introduction 1-1

Overview 1-1

Switch Architecture 1-2
Management Options 1-2

Description of Hardware 1-3

100BASE-FX SC Fiber Ports 1-3
1000BASE-T RJ-45 Ports 1-3
SFP Slots 1-3
Management Port 1-4
Mode Button 1-4
Reset Button 1-4
Console Port 1-4
Status LEDs 1-4
Optional Redundant Power Supply 1-6
Power Supply Sockets 1-6

Features and Benefits 1-6

Connectivity 1-6
Performance 1-7
Management 1-7

Chapter 2: Network Planning 2-1

Fiber-To-The-Home (FTTH) 2-1
Application Examples 2-1

Downlink Fiber Connections 2-2
Uplink SFP Connections 2-3
Management Connections 2-4
Making Private VLAN Connections 2-5

Application Notes 2-6

Chapter 3: Installing the Switch 3-1

Selecting a Site 3-1
Equipment Checklist 3-1

Package Contents 3-1
Optional Rack-Mounting Equipment 3-2

Mounting 3-2

Rack Mounting 3-2

Desktop or Shelf Mounting 3-3
Installing an SFP Transceiver 3-4
Connecting to a Power Source 3-5

ix

Contents

Connecting to the Console Port 3-6

Wiring Map for Serial Cable 3-6

Chapter 4: Making Network Connections 4-1

Connecting Network Devices 4-1
Twisted-Pair Devices 4-1

Cabling Guidelines 4-1
Connecting to PCs, Hubs, and Switches 4-2

Fiber Optic Devices 4-3
Connectivity Rules 4-5

1000 Mbps Gigabit Ethernet Collision Domain 4-5
100 Mbps Fast Ethernet Collision Domain 4-5
10 Mbps Ethernet Collision Domain 4-5

Appendix A: Troubleshooting A-1

Diagnosing Switch Indicators A-1
Power and Cooling Problems A-2
Installation A-2
In-Band Access A-2

Appendix B: Cables B-1

Twisted-Pair Cable and Pin Assignments B-1

10/100BASE-TX Pin Assignments B-2
Straight-Through Wiring B-2
Crossover Wiring B-3
1000BASE-T Pin Assignments B-3

Appendix C: Specifications C-1

Physical Characteristics C-1
Compliances C-2
Switch Features C-2
Management Features C-3
Standards C-3

Appendix D: German Instructions D-1

Eine Site Auswählen (Selecting a Site - German) D-1
Montage (Rack Mounting Instructions - German) D-2

Rack-Montage D-2

x

Figures

Figure 1-1 Switch Front and Rear Panels 1-1
Figure 1-2 Port LEDs 1-4
Figure 1-3 System LEDs 1-5
Figure 1-4 Power Supply Sockets 1-6
Figure 2-1 Downlink Fiber Connections 2-2
Figure 2-2 Uplink SFP Connections 2-3
Figure 2-3 RJ-45 Management Port Connections 2-4
Figure 2-4 Making Private VLAN Connections 2-5
Figure 3-1 Attaching the Brackets 3-2
Figure 3-2 Installing the Switch in a Rack 3-3
Figure 3-3 Attaching the Adhesive Feet 3-3
Figure 3-4 Installing an SFP Transceiver 3-4
Figure 3-5 Power Receptacle 3-5
Figure 3-6 Serial Port (DB-9 DTE) Pin-Out 3-6
Figure 4-1 Making RJ-45 Port Connections 4-2
Figure 4-2 Making SC Port Connections 4-4
Figure 4-3 Making SFP Port Connections 4-4
Figure B-1 RJ-45 Connector Pin Numbers B-1
Figure B-2 Straight-through Wiring B-2
Figure B-3 Crossover Wiring B-3

xi

Tables

Table 1-1 Port Status LEDs 1-5
Table 1-2 System Status LEDs 1-5
Table 3-1 Serial Cable Wiring 3-6
Table 4-1 Maximum 1000BASE-T Gigabit Ethernet Cable Length 4-5
Table 4-2 Maximum 1000BASE-SX Fiber Optic Cable Lengths 4-5
Table 4-3 Maximum 1000BASE-LX Fiber Optic Cable Length 4-5
Table 4-4 Maximum Fast Ethernet Cable Lengths 4-5
Table 4-5 Maximum Ethernet Cable Length 4-5
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-4

xii

Chapter 1: Introduction

Overview

The ES3526S is a 24-port switch designed for delivering Fiber-To-The-Home
(FTTH) for high-speed Internet access. Deployed at the service provider’s central
office (CO), the switch supports up to 24 subscribers via 100 Mbps single-fiber
downlink connections to the remote media converter installed at the customer’s
premises. Uplink connections from the switch to other devices at the CO are
provided by either 1000BASE-T twisted-pair or SFP transceiver connections.

The switch also has a dedicated RJ-45 management port. This port is for secure
in-band management via a Web browser, SNMP/RMON, or Telnet. The DB-9 serial
console port is for direct connection to a PC using the console cable that is supplied
with the switch.

A wide range of management features are supported, including tagged VLANs,
multicast filtering, Class of Service (CoS) priority queuing, bandwidth rate limiting,
and Private VLAN port isolation. The switch also supports comprehensive OAM
(Operations, Administration, and Maintenance) functions for media converters on
the subscriber fiber links.

Port Status

LEDs

Single Fiber

SC Ports

DC

12V13A

Management

RPS

Port

Figure 1-1 Switch Front and Rear Panels

Console Port

System Status

LEDs

Combination Uplink

SFP/ RJ-45 Ports

AC Power
Connector

ES3526S

1-1

Introduction

1

Switch Architecture

The 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.

Switching Method

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.

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 the switch, you can make a direct connection to the
DB-9 console port (out-of-band), or you can manage the switch through its RJ-45
Management port (in-band) using Telnet, the on-board Web agent, or network
management software.

The management agent provides a wide range of advanced performance-enhancing
features. Port-based and private VLANs provide traffic security and efficient use of
network bandwidth. CoS priority queueing ensures the minimum delay for
real-time multimedia data through the switch. Flow control
packets due to bottlenecks caused by port saturation. Bandwidth management for
each subscriber link is also provided by traffic rate limiting.

For management of connected media converters, the agent provides loopback test,
link status, and optical power information, as well as supporting extensive SNMP
trap messages for various device conditions.

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

eliminates the loss of

moving

1-2

Description of Hardware

Description of Hardware

100BASE-FX SC Fiber Ports

The switch provides 24 SC fiber ports on the front of the switch. Each single-fiber SC
connector supports a 100BASE-FX full-duplex link to a subscriber’s media converter
unit. The switch’s fiber transceivers use Wavelength Division Multiplexing (WDM)
technology to achieve bi-directional operation (1550 nm transmit, 1310 nm receive)
over a single optical fiber. The WDM single-mode fiber links can run up to 15 km.

The 100 Mbps bandwidth of the fiber links can be restricted by rate-limiting, which is
configurable via a management connection. Each port also supports
auto-negotiation of flow control, so the switch can automatically prevent port buffers
from becoming saturated.

1000BASE-T RJ-45 Ports

The two RJ-45 ports on the right side of the front panel are 10/100/1000BASE-T
uplink ports that are shared with the two Small Form-factor Pluggable (SFP) 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.

These 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. (See “Twisted-Pair Cable and Pin Assignments” on page B-1.)

Both 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 this
feature is also supported by the attached device. 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 802.3-2002 auto-negotiation of flow control, so the
switch can automatically prevent port buffers from becoming saturated.

1

SFP Slots

The Small Form Factor Pluggable (SFP) transceiver slots are shared with the two
1000BASE-T RJ-45 ports (Ports 25~26). 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.

1-3

Introduction

1

Management Port

The RJ-45 port labeled “Net Management” on the front of the switch is a dedicated
management port. This is the only port on the switch that allows in-band
management access to the SNMP agent. This is a 10/100BASE-TX port with a fixed
MDI-X pinout.

This port supports auto-negotiation, so the optimum transmission mode (half or full
duplex) and data rate (10 or 100 Mbps) can be selected automatically, if this feature
is also supported by the attached device.

Note: The management port cannot be configured.

Mode Button

The function of the mode button is not currently implemented.

Reset Button

Pressing the reset button reboots the switch.

Console Port

The console port on the switch’s front panel is a DB-9 connector that 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.

Status LEDs

The 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
table.

Port and Link Activity

ES3526S

Figure 1-2 Port LEDs

1-4

Description of Hardware

Table 1-1 Port Status LEDs

LED Condition Status

SC Fiber Ports (1~24)

Link/Act On/Flashing Green Port has established a valid 100 Mbps network connection.

Flashing indicates activity.

Off There is no valid link on the port.

Remote Error Off CPE media converter’s100BASE-TX port is disconnected.

On Green CPE media converter’s 100BASE-TX port is connected.

On Amber CPE media converter has a power failure.

Flashing Amber Loopback test being performed on a media converter.

RJ-45/SFP Combination Ports (25, 26)

Link/Act On/Flashing Amber Port has established a valid 10/100 Mbps network

connection. Flashing indicates activity.

On/Flashing Green Port has established a valid 1000 Mbps network

connection. Flashing indicates activity.

Off There is no valid link on the port.

System Indicators

ES3526S

1

Figure 1-3 System LEDs

Table 1-2 System Status LEDs

LED Condition Status

Power On Green The unit’s internal power supply is operating normally.

On Amber The unit’s internal power supply has a fault.

Off The unit has no power connected, or the internal power

RPU On Green Redundant power supply is receiving power.

On Amber Fault in redundant power supply (including thermal or fan).

Off There is no redundant power supply currently attached.

supply has failed.

1-5

Introduction

1

Table 1-2 System Status LEDs

LED Condition Status

Diag On Green The system diagnostic test has completed successfully.

Flashing Green The system diagnostic test is in progress.

On Amber The system diagnostic test has detected a fault.

Stacking N/A This indicator is not currently implemented.

Optional Redundant Power Supply

The switch supports an optional Redundant Power Supply (RPS) that can supply
power to the switch if the internal power supply should fail.

Power Supply Sockets

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

Redundant Power Socket

DC

12V13A

Figure 1-4 Power Supply Sockets

RPS

Power Socket

Features and Benefits

Connectivity

• 24 100BASE-FX full-duplex single-fiber WDM downlink connections

• Two combination 1000BASE-T RJ-45/SFP uplink ports

• 10/100BASE-TX RJ-45 management port

• DB-9 serial console port

• Single-fiber SC connectors support single-mode fiber connections up to 15 km

• Auto-negotiation enables each 10/100/1000BASE-T port to automatically select
the optimum communication mode (half or full duplex) if this feature is supported
by the attached device; otherwise the port can be configured manually

• 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 Std 802.3-2002 compliant (Ethernet, Fast Ethernet, Gigabit Ethernet)

• Up to 8K-entry, media access control (MAC) address cache

1-6

Features and Benefits

• Up to 255 IEEE 802.1Q-based tagged VLANs

• Support for Private VLAN traffic segmentation

• Support for bandwidth management rate limiting

• IEEE 802.1p Class of Service (CoS) through four priority queues for each port with

Head-of-Line blocking prevention

Performance

• Transparent bridging

• Aggregate bandwidth up to 8.8 Gbps

• Filtering and forwarding at line speed

• Provides Store-and-Forward switching

• Supports IEEE 802.3-2002 full-duplex flow control

Management

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

• Management agent:

- Supports Telnet, SNMP and Web-based interface

- Dedicated management port for in-band access

- Hardware assisted remote monitoring (RMON) statistics collection

1

1-7

1

Introduction

1-8

Chapter 2: Network Planning

Fiber-To-The-Home (FTTH)

Fiber-To-The-Home (FTTH) has always been an attractive option for Internet
access. It has all the benefits of optical fiber. It provides a future-proof network, in
that you do not have to go through the hassles of upgrading from ADSL to XDSL, or
digital co-ax to digital wireless. It does not have to struggle with electromagnetic
interference problems, and with no active “outside-plant” components, it offers the
highest reliability. Moreover, it does not require electric power and is immune to
lightning and other transients. These properties of fiber lead to the lowest possible
power and operational costs, such as maintenance, provisioning and facilities
planning.

The ES3526S and Media Converter provide an ideal FTTH system, allowing a
service provider to extend an Ethernet connection over optical fiber directly to a
subscriber. The ES3526S contains 24 100BASE-FX full-duplex single-fiber
single-mode cable connections that run from the service provider’s central office
(CO) directly to Media Converters installed at subscriber premises. Each
single-mode fiber connection can be run up to a distance of 15 km from the CO. The
switch also provides two 1000BASE-T/SFP uplink ports for connections to other
switches or routers at the CO.

The Media Converter is a single-channel fiber-to-copper CPE (Customer Premises
Equipment) housed in a compact unit. The CPE connects to the fiber cable from the
CO and provides one standard 10/100BASE-TX RJ-45 Ethernet port for connecting
to a subscriber’s PC, switch, or other network device using twisted-pair cable.

Application Examples

The ES3526S switch is designed to offer a cost-effective solution for FTTH,
providing downlink fiber connections to subscribers and high-bandwidth twisted-pair
uplink connections to core switches and routers at the CO. A dedicated
management port provides secure management access to the switch from the CO’s
network.

Some typical connection configurations are described in the following pages.

2-1

Network Planning

2

Downlink Fiber Connections

Fiber optic technology allows for longer cabling than any other media type. A
100BASE-FX single-mode fiber link from the chassis can connect to a subscriber up
to 15 km away. The Media Converter Customer Premises Equipment (CPE) is
installed inside a subscriber’s premises, so there are no active outside components
between the CO and the end user.

The figure below illustrates a basic switch to CPE connection.

Central Office (CO)

ES3526S

ES3526S

Subscriber’s Home

CPE

100BASE-FX full-duplex
single-fiber (WDM) link to CO
(up to 15 km)

2-2

10/100BASE-TX UTP
connection to computer
(up to 100 m)

Figure 2-1 Downlink Fiber Connections

Application Examples

Uplink SFP Connections

The ES3526S switch provides 24 downlink fiber ports and two combination SFP/
RJ-45 uplink ports. The 1000BASE-T ports can provide a trunked high-bandwidth
connection to a core switch or router at the CO. Besides balancing the load across
each port in the trunk, the additional port provides redundancy by taking over the
load if the other port in the trunk fails.

The figure below illustrates the ES3526S connecting to switches with UTP cable.

Internet

Link to Internet POP

1000BASE-T UTP trunk
connection to Layer 2/3 switch
(up to 100 m)

Layer 2/3 Switch

2

ES3526S

ES3526S

Figure 2-2 Uplink SFP Connections

2-3

Network Planning

2

Management Connections

The ES3526S has one dedicated RJ-45 management port on its front panel. This is
the only port on the switch that allows in-band management access. This
10/100BASE-TX port can be connected to the CO Ethernet LAN for network
management.

The figure below illustrates management-port connections to ES3526S switches.

EthernetSwitch

Management Station

ES3526S

ES3526S

10/100BASE-TX UTP connections
to Ethernet switch
(up to 100 m)

ES3526S

ES3526S Switches

2-4

Figure 2-3 RJ-45 Management Port Connections

Application Examples

Making Private VLAN Connections

The ES3526S can be configured for up to 255 VLANs. Also, the switch supports
Private VLANs that allow traffic isolation for ports within a VLAN and restrict
forwarding to only designated uplink ports.

Each subscriber downlink port (or ports) can be configured into its own Private
VLAN, so that traffic is forwarded only to and from the switch’s 1000BASE-T uplink
ports. This provides robust port-based security for each subscriber.

Furthermore, the switch can control the bandwidth of downlink connections using
traffic rate limiting. Each fiber port downlink can be limited to values from 1 Mbps to
100 Mbps in increments of 1 Mbps depending on the needs of the individual user.
The service provider can then charge subscribers according to the bandwidth
provided.

The figure below illustrates Private VLAN connections to the switch.

Uplink to Layer 2/3 switch

2

Private VLAN 1
Subscriber A

ES3526S Switch

Port 8

Fiber downlinks to subscribers

Figure 2-4 Making Private VLAN Connections

Ports 25, 26

ES3526S

Ports 18, 19, 20

Private VLAN 2

BSubscriber

2-5

Network Planning

2

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. For network applications that require routing between dissimilar network types,

you can attach switch units directly to a router.

4. 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.

• 100BASE-LH: 70 km (43.5 miles) using single-mode fiber.

• 100BASE-FX: 15 km (9.3 miles) for single-fiber single-mode links.

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

2-6

Chapter 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:

- 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 45° C (32 to 113 °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,
transmitters, etc.

• Make sure that 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.

Equipment Checklist

After unpacking the 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

• ES3526S Fast Ethernet Switch

• Four adhesive foot pads

• Bracket Mounting Kit containing two brackets and four screws for attaching the
brackets to the switch

• Power Cord—T-mark

• Console cable

• This Installation Guide

• Management Guide

3-1

Installing the Switch

3

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)

Mounting

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

Rack Mounting

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

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

To rack-mount devices:

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

Mounting Kit.

ES3526S

Figure 3-1 Attaching the Brackets

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

3-2

Mounting

25

26

Link/Act

PWR

PoE

Diag

25

26

Stacking

PoE/Link

ES3526S

Mode

Figure 3-2 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.

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.

3

ES3526S

Figure 3-3 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.

3-3

Installing the Switch

3

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.

Installing an SFP Transceiver

ES3526S

Figure 3-4 Installing an SFP Transceiver

Warning: SFP transceivers use lasers to transmit signals over fiber optic cable. The

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

Note: SFP transceivers are hot-swappable. You do not need to power off the switch

before installing or removing a transceiver.

You can install an SFP transceiver as described below:

1. Insert the SFP transceiver with the LC connector facing out toward you. Note

that the transceiver is keyed so that it can only be installed in one orientation.

2. Gently slide it into the SFP interface slot until it clicks into place.

3-4

Connecting to a Power Source

Connecting to a Power Source

To connect a device to a power source:

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

the device.

RPS

DC

12V13A

Figure 3-5 Power Receptacle

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

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 Power

LED is lit. If not, check that the power cable is correctly plugged in.

4. 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.

3

3-5

Installing the Switch

3

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 on-board 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 3-6 Serial Port (DB-9 DTE) Pin-Out

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

3-6

Chapter 4: Making Network Connections

Connecting Network Devices

The ES3526S switch is designed to provide high-speed Internet access to individual
subscribers through its 100BASE-FX single-fiber downlink connections. Two
combination 1000BASE-T/SFP ports provide the uplink connection from the switch
to other switches or routers at the central office. One dedicated 100BASE-TX
management port is provided for connection to an Ethernet switch or hub for
management access to the switch.

Twisted-Pair Devices

Each device requires a shielded or unshielded twisted-pair (STP or UTP) cable with
RJ-45 connectors at both ends. For 100BASE-TX connections, Category 5 or better
cable is required; for 10BASE-T, Category 3 or better cable can be used.

For 1000BASE-T connections, Category 5, 5e, or 6 (recommended) cable is
required with all four wire pairs connected. You should also test the cable installation
for IEEE 802.3-2002 Gigabit Ethernet compliance. See “Twisted-Pair Cable and Pin
Assignments” on page B-1.

Cabling Guidelines

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

The management port labeled Net Management is fixed with an MDI-X pinout. You
can use a straight-through cable to connect directly to a PC. However, if connecting
to a network switch or hub port that does not support automatic MDI/MDI-X, use a
crossover cable.

See Appendix B for further information on cabling.

4-1

Making Network Connections

4

Connecting to PCs, Hubs, and Switches

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.

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

connector.

ES3526S

Figure 4-1 Making RJ-45 Port Connections

2. Attach the other end to an available RJ-45 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 green Link/Act LED corresponding to each

port will light to indicate that the connection is valid.

4-2

Fiber Optic Devices

Fiber Optic Devices

Each single-fiber SC connector on the switch’s front panel connects directly to a
media converter device at the subscriber’s premises.

The switch’s single-fiber ports require one strand of 9/125 micron single-mode fiber
optic cable with an SC connector at the switch end.

An optional 1000BASE-X SFP transceiver may be used for uplink connections from
the switch to other network devices at the CO. A 1000BASE-X transceiver may also
be for long distance connections to devices at another service provider site.

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

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

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

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

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

4

Hinweis: Bei der Wahl eines Glasfasertransceivers muß für die Beurteilung der

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

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

3. Connect fiber devices to the switch.

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

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

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.

a. For connections to the media converter, connect one end of the cable to the

SC port on the switch and the other end to the media converter at the
subscriber’s premises. Note that the requires an internal splice and SC
connection for the single-mode fiber, which should be performed by trained
service personnel only.

4-3

Making Network Connections

4

Single Fiber
SC connector

Figure 4-2 Making SC Port Connections

b. For SFP connections, 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.

ES3526S

Figure 4-3 Making SFP Port Connections

4. As a connection is made, check the Link/Act LED on the switch’s front panel for

the corresponding port to be sure that the connection is valid.

The 100BASE-FX fiber optic ports operate only at 100 Mbps, full duplex. You can
run each single-mode fiber link up to a maximum of 15 kilometers from the central
office. However, note that power budget constraints must also be considered when
calculating the maximum cable length for each specific connection.

4-4

Connectivity Rules

Connectivity Rules

When building your network, please follow the connectivity rules listed below for
Ethernet, Fast Ethernet, and Gigabit Ethernet. 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.

1000 Mbps Gigabit Ethernet Collision Domain

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

Cable Type Maximum Cable Length

Category 5, 5e or better 100-ohm UTP or STP 100 m (328 ft)

Table 4-2 Maximum 1000BASE-SX Fiber Optic Cable Lengths

Fiber Size Fiber Bandwidth Maximum Cable Length

62.5/125 micron 160 MHz/km 2-220 m (7-722 ft)

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

50/125 micron 400 MHz/km 2-500 m (7-1641 ft)

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

Table 4-3 Maximum 1000BASE-LX Fiber Optic Cable Length

Fiber Size Fiber Bandwidth Maximum Cable Length

9/125 micron N/A 2 m - 5 km (7 - 16404 ft)

4

100 Mbps Fast Ethernet Collision Domain

Table 4-4 Maximum Fast Ethernet Cable Lengths

Type Cable Type Max. Cable Length

100BASE-TX Category 5 100-ohm UTP or STP 100 m (328 ft)

100BASE-FX 9/125 micron core single-mode fiber (SMF) for

single-fiber downlink connections

10 Mbps Ethernet Collision Domain

Table 4-5 Maximum Ethernet Cable Length

Cable Type Maximum Length

Categories 3, 4, 5 100-ohm UTP or STP 100 m (328 ft)

15 km (9.3 miles)

4-5

Making Network Connections

4

4-6

Appendix A: Troubleshooting

Diagnosing Switch Indicators

Table A-1 Troubleshooting Chart

Symptom Cause Action
Power indicator is

off

Power indicator is
on amber

Diag indicator is on
amber

Link/Act port
indicator is off

Remote Error

indicator is on amber

Remote Error

indicator is flashing
green

AC power is
disconnected or
internal power supply
may have failed

The internal power
supply has a fault

The system diagnostic
test has detected a
fault

There is no valid link
on the port

The CPE media
converter’s fiber port is
disconnected

The CPE media
converter’s power is
off or has failed

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

• The internal power supply may have failed.
Contact your local dealer for assistance.

• Contact your local dealer for assistance.

• Try restarting the switch to clear the condition.

• If the condition persists, contact your local dealer
for assistance.

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

• Be sure the cable is correctly 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 port on the attached device and cable
connections for possible defects. Replace the
defective device or cable if necessary.

• Be sure the fiber cable is correctly connected to
the media converter device.

• Check the cable connections for possible defects.
Replace the defective device or cable if
necessary.

• Check AC power adapter connections between
the CPE and the wall outlet.

• The AC power adapter may have failed. Replace
the power adapter.

• The CPE’s internal power supply may have failed.
Replace the defective CPE.

A-1

Troubleshooting

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, then the internal power supply may be defective. Contact your local dealer
for assistance.

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.

In-Band Access

You can access the management agent in the switch from anywhere within the
network attached to the management port using Telnet, a Web browser, or other
network management software. 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 can accept 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-2

Appendix B: Cables

Twisted-Pair Cable and Pin Assignments

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

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

orientation.

Caution: 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.

The 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

B

Cables

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).

The RJ-45 management port is fixed at MDI-X operation.

Table B-1 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

6

4,5,7,8

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

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

Not used Not used

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.

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

B-2

End A

EIA/TIA 568B RJ-45 WiringStandard

10/100BASE-TX Straight-through 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

Figure B-2 Straight-through Wiring

1
2
3
4
5
6
7
8

End B

Twisted-Pair Cable and Pin Assignments

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.

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

EIA/TIA 568B RJ-45 Wiring Standard

10/100BASE-TX Crossover Cable

White/Orange Stripe

Orange

End A

1
2
3
4
5
6
7
8

White/Green Stripe

Blue

White/Blue Stripe

Green

White/Brown Stripe

Brown

1
2
3
4
5
6
7
8

End B

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

that the length

.

B

B-3

B

Cables

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

Pin MDI Signal Name MDI-X Signal Name

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

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

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

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

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

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

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

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

Cable Testing for Existing Category 5 Cable

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

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

Adjusting Existing Category 5 Cabling to Run 1000BASE-T

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

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

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

3. Reconnect some of the connectors in the link.

B-4

Appendix C: Specifications

Physical Characteristics

Ports

24 100BASE-FX single-fiber single-mode SC
Two 10/100/1000BASE-T RJ-45 shared with two slots for optional SFP

transceivers
One 10/100BASE-TX RJ-45 (management port)

Network Interface

Ports 1-24: single fiber SC connector

100BASE-FX: 9/125 micron single-mode fiber cable

Ports 25, 26: RJ-45 connectors, auto MDI-X

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

Fiber Transceiver Specifications

Fiber Cable: ITU-T G.652 single-fiber single-mode (WDM)
Wavelengths: 1550 nm transmit, 1130 nm receive
Data Rate: 100 Mbps full duplex
Transmit Power: -14 to -8 dBm
Receive Power: -30 to -8 dBm
Optical Power Budget: 16 dB
Range: Up to 15 km

Aggregate Bandwidth

8.8 Gbps

Buffer Architecture

32 Mbyte per system

Switching Database

8K MAC address entries

LEDs

System: Power, Diag, RPU

Link/Act, Remote Error

Ports:

Weight

4.5 kg (9.92 lb)

C-1

C

Specifications

Size

44 x 32.4 x 4.3 cm (17.32 x 12.8 x 1.69 in.)

Temperature

Operating: 0 to 45 °C (32 to 113 °F)
Storage: -40 to 70 °C (-40 to 158 °F)

Humidity

Operating: 5% to 95%

Power Supply

Internal, auto-ranging transformer: 100 to 240 VAC, 50 to 60 Hz

Power Consumption

100 Watts maximum

Heat Dissipation

340 BTU/hr maximum

Maximum Current

0.9A @ 110 VAC

0.4A @ 240 VAC

Compliances

CE Mark

Emissions

FCC Class A

Safety

CSA (CSA C22.2 NO60950-1 & UL60950-1)
TUV/GS (EN60950-1)
CB (IEC60950-1)

Switch Features

Forwarding Mode

Store-and-forward

C-2

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-232C DTE DB-9 console port

Software Loading

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

Standards

IEEE Std 802.3-2002
IEEE 802.1D (Bridging)
IEEE 802.3-2002
Ethernet
Fast Ethernet
Gigabit Ethernet
Full-duplex flow control
Link Aggregation Protocol
ISO/IEC 8802-3

Management Features

C

C-3

C

Specifications

C-4

Appendix D: German Instructions

Eine Site Auswählen (Selecting a Site - German)

Die Schalter können in ein Standard-19-Zoll-Ausrüstungsgestell oder auf eine flache
Ebene montiert werden.

Zum Auswählen eines Standortes beachten Sie bitte die nachstehenden Richtlinien.

• Die Site sollte:

- Sich in der Mitte aller anzuschließenden Geräte sowie in der Nähe einer
Netzsteckdose befinden;

- Imstande sein, eine Temperatur zwischen 0 und 45 °C (32 und 113 °FF) und
eine Feuchtigkeit innerhalb von 5% bis 95% (nichtkondensierend)
beizubehalten;

- In einem genügend weiten Abstand (ungefähr 5 cm oder zwei Zoll) von allen
Seiten fur eine ausreichende Beluftung aufgestellt werden;

- Für das Installieren, die Kabelverlegung und für Wartungen und Reparaturen
leicht zugänglich sein.

- Die LED-Statusanzeigedioden mussen stets klar und leicht sichtbar sein.

• Sicherstellen, dass das verdrehte Kabel stets weg von anderen Stromkabeln,
Neonleuchteinrihtungen und anderen Quellen von moglichen elektrischen
Storungen verlegt wird, wie z. B. von Radios und Transmittern.

• Sicherstellen, dass das Gerat an eine separate Stromquelle mit Erdanschlus mit
einer Netzspannung von 100 bis 240 V AC (Wechselstromspannung), 50 bis 60
Hz, und innerhalb in einem Abstand von 2,44 m (8 Fus) zu jedem Gerat installiert
wird und on einem separaten Trennschalter bzw. Leistungsschalter mit Strom
versorgt wird. Fur alle Gerate wird empfohlen, einen Filter oder einen
Überspannungsschutz zu verwenden.

D-1

D

German Instructions

Montage (Rack Mounting Instructions - German)

Switch-Einheiten können an ein standardmäßiges 19-Zoll Einrichtungsrack, einen
Arbeitstisch oder ein Regal montiert werden. Folgend finden Sie die

Montageanweisungen für jeden Positionstyp

Rack-Montage

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

• Temperatur: Da die Temperatur innerhalb einer Rackeinheit höher als die
Raumumgebungstemperatur sein kann, stellen Sie bitte sicher, dass die
Rackumgebungstemperatur innerhalb des angegebenen
Betriebstemperaturbereichs liegt. (Siehe "Temperatur" auf Seite C-2.)

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

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

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

So montieren Sie Geräte an ein Rack:

1. Befestigen Sie die Metallwinkel mit den im Metallwinkel-Montageset

erhältlichen Schrauben an dem Gerät.

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

dem Rack.

.

3. Wenn Sie nur einen Switch installieren, dann springen Sie bitte über zu

"Verbinden mit einer Stromquelle" auf Seite 3-5 am Ende dieses Kapitels.

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

untereinander in einer beliebigen Reihenfolge.

D-2

Glossary

10BASE-T

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

100BASE-FX

IEEE 802.3u specification for 100 Mbps Fast Ethernet over two strands of 50/125 or

62.5/125 micron core fiber cable.

100BASE-TX

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

1000BASE-LH

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 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 two pairs of Category 5, 5e, or
better 100-ohm UTP cable.

Auto-Negotiation

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

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 with each other.
Their interference makes both signals unintelligible.

Glossary-1

Glossary

Collision Domain

Single CSMA/CD LAN segment.

CSMA/CD

Carrier Sense Multiple Access/Collision Detect is the communication method
employed by Ethernet and Fast Ethernet.

Customer Premises Equipment (CPE)

Terminating equipment, such as terminals, phones, routers and routers, supplied by
the service provider, installed at customer sites, and connected to the service
provider’s network.

End Station

A workstation, server, or other device that does not act as a network interconnection.

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.

Fast Ethernet Switch

Device that provides a full 100 Mbps bandwidth (or either 10 or 100 Mbps bandwidth
with Auto-Negotiation) to each port (LAN segment).

FTTH

Fibre To The Home: a network where optical fibre runs from a service provider’s
switch to the subscriber's premises or home.

Full Duplex

Transmission method that allows switch and network card 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.

Glossary-2

Glossary

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.

IEEE 802.3u

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

Layer 2

Data Link layer in the ISO 7-Layer Data Communications Protocol. This is related
directly to the hardware interface for network devices and passes on traffic based on
MAC addresses.

Layer 3

Network layer in the ISO 7-Layer Data Communications Protocol. This layer handles
the routing functions for data moving from one open system to another.

LED

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

Link Aggregation

See Port Trunk.

Local Area Network (LAN)

A group of interconnected computer and support devices.

Glossary-3

Glossary

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.

Multicast Switching

A process whereby the switch filters incoming multicast frames for services for
which no attached host has registered, or forwards them to all ports contained within
the designated multicast VLAN group.

Network Diameter

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

Out-of-Band Management

Management of the network from a station not attached to the network.

Port Mirroring

A method whereby data on a target port is mirrored to a monitor port for
troubleshooting with a logic analyzer or RMON probe. This allows data on the target
port to be studied unobstructively.

Port Trunk

Defines a network link aggregation and trunking method which specifies how to
create a single high-speed logical link that combines several lower-speed physical
links.

Remote Monitoring (RMON)

RMON provides comprehensive network monitoring capabilities. It eliminates the
polling required in standard SNMP, and can set alarms on a variety of traffic
conditions, including specific error types.

RJ-45 Connector

A connector for twisted-pair wiring.

Glossary-4

Glossary

Simple Network Management Protocol (SNMP)

The application protocol in the Internet suite of protocols which offers network
management services.

Spanning Tree Protocol (STP)

A technology that checks your network for any loops. A loop can often occur in
complicated or backup linked network systems. Spanning Tree detects and directs
data along the shortest available path, maximizing the performance and efficiency of
the network.

Switched Ports

Ports that are on separate collision domains or LAN segments.

Telnet

Defines a remote communication facility for interfacing to a terminal device over
TCP/IP.

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.

Trivial File Transfer Protocol (TFTP)

A TCP/IP protocol commonly used for software downloads.

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.

XModem

A protocol used to transfer files between devices. Data is grouped in 128-byte
blocks and error-corrected.

Glossary-5

Glossary

Glossary-6

Index

Numerics

1000BASE-LX

cable lengths 4-5
connections 1-3
ports 1-3

1000BASE-SX

cable length 4-5
connections 1-3
ports 1-3

1000BASE-T

cable length 4-5
connections 1-3
ports 1-3

100BASE-FX

cable length 4-5
connections 1-3
ports 1-3

10BASE-T

cable length 4-5
connections 4-5
ports 1-3

A

address table size C-1
adhesive feet, attaching 3-3
air flow requirements 3-1
applications

downlink fiber connections 2-2
Private VLAN connections 2-5
uplink UTP connections 2-3

B

brackets, attaching 3-2
buffer size C-1

pin assignments 3-6
console port, pin assignments 3-6
contents of package 3-1
cooling problems A-2
cord sets, international 3-5

D

desktop mounting 3-3
device connections 4-1

E

electrical interference, avoiding 3-1
equipment checklist 3-1
examples, connections 2-1

F

features C-3

management 1-7

switch 1-6
fiber cables 4-3

G

grounding for racks 3-2

I

indicators, LED 1-4
installation

connecting devices to the switch 4-2

desktop or shelf mounting 3-3

installing an SFP transceiver 3-4

power requirements 3-1

problems A-2

rack mounting 3-2

site requirements 3-1, B-1

C

cable

fiber standards B-1
cleaning fiber terminators 4-3
compliances

safety C-2
connection examples 2-1
console port

L

laser safety 3-4, 4-3
LED indicators

Diag 1-6
Link/Act 1-5
Power 1-5
problems A-1
Remote Error 1-5

Index-1

Index

RPU 1-5
Stacking 1-6

location requirements 3-1, B-1

M

management

agent 1-2
features 1-7, C-3
out-of-band 1-2
SNMP 1-2
Web-based 1-2

mounting the switch

in a rack 3-2
on a desktop or shelf 3-3

multimode fiber optic cables 4-3

N

network

examples 2-1

O

out-of-band management 1-2

P

package contents 3-1
pin assignments B-1

console port 3-6
DB-9 3-6

port saturation 1-2
power, connecting to 3-5
problems, troubleshooting A-1

single-mode fiber optic cables 4-3
site selelction 3-1
SNMP agent 1-2
specifications

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

standards

compliance C-2

IEEE C-3
status LEDs 1-4
surge suppressor, using 3-1
switch architecture 1-2
switching, introduction to 2-1

T

temperature within a rack 3-2
troubleshooting

in-band access A-2

power and cooling problems A-2

switch indicators A-1

V

VLANs 1-2, 1-3

W

Web-based management 1-2

Q

QoS 1-2

R

rack mounting 3-2
rear panel receptacles 1-6
RJ-45 port

connections 4-1
pinouts B-4

rubber foot pads, attaching 3-3

S

screws for rack mounting 3-2

Index-2

ES3526S
E082005-R01
150200052900A