Allied Telesis WebSmart AT-FS750/24POE User manual

Brand: Allied Telesis

Model: WebSmart AT-FS750/24POE

Category: Network switches

Type: User manual

This manual is also suitable for

AT-FS750/24POE

613-000556 Rev. D

Fast Ethernet

Smart Switch

AT-FS750/24POE

Installation Guide

Allied Telesis is a trademark of Allied Telesis, Inc. Microsoft and Internet Explorer are registered trademarks of Microsoft

Corporation. Netscape Navigator is a registered trademark of Netscape Communications Corporation. All other product names,

company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective

owners.

Allied Telesis, Inc. reserves the right to make changes in specifications and other information contained in this document without

prior written notice. The information provided herein is subject to change without notice. In no event shall Allied Telesis, Inc. be

liable for any incidental, special, indirect, or consequential damages whatsoever, including but not limited to lost profits, arising

out of or related to this manual or the information contained herein, even if Allied Telesis, Inc. has been advised of, known, or

should have known, the possibility of such damages.

Electrical Safety and Emissions Standards

This product meets the following standards.

RFI Emissions FCC Class A, EN55022 Class A, CISPR Class A, C-TICK, CE

Immunity EN55024

Electrical Safety EN60950-1 (TUV), UL 60950-1 (

)

U.S. Federal Communications Commission

Radiated Energy

Note: This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15

of 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 this 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.

Note: Modifications or changes not expressly approved of by the manufacturer or the FCC, can void your right to operate

this equipment.

Industry Canada

This Class A digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

Warning: In a domestic environment this product may cause radio interference in

which case the user may be required to take adequate measures.

Laser Safety EN60825

Translated Safety Statements

Important: The  indicates that a translation of the safety statement is available in a PDF

document titled “Translated Safety Statements” (613-000405) posted on the Allied Telesis website at

www.alliedtelesis.com.

Contents

Preface ................................................................................................................................................................................11

Safety Symbols Used in this Document................................................................................................................................12

Where to Find Web-based Guides .......................................................................................................................................13

Contacting Allied Telesis ......................................................................................................................................................14

Online Support ..............................................................................................................................................................14

Email and Telephone Support .......................................................................................................................................14

Returning Products........................................................................................................................................................14

For Sales or Corporate Information...............................................................................................................................14

Warranty........................................................................................................................................................................14

Chapter 1: Overview ..........................................................................................................................................................15

Features ...............................................................................................................................................................................16

Front and Back Panels .........................................................................................................................................................17

Ports .....................................................................................................................................................................................18

Twisted Pair Ports .........................................................................................................................................................18

Uplink Combo Ports ......................................................................................................................................................18

LEDs.....................................................................................................................................................................................20

System LEDs.................................................................................................................................................................20

10/100Base-T POE Port LEDs......................................................................................................................................20

10/100Base-T Non-POE Port LEDs ..............................................................................................................................21

Uplink Combo Port LEDs ..............................................................................................................................................22

Power Supply .......................................................................................................................................................................24

Power over Ethernet.............................................................................................................................................................25

Power Budgeting ...........................................................................................................................................................25

Implementation..............................................................................................................................................................26

Ethernet Switching Basics ....................................................................................................................................................27

MAC Address Table ......................................................................................................................................................27

Duplex Mode .................................................................................................................................................................27

Store and Forward.........................................................................................................................................................28

Back Pressure and Flow Control...................................................................................................................................28

Network Topologies..............................................................................................................................................................30

Power Workgroup Topology ..........................................................................................................................................30

Collapsed Backbone .............................................................................................................

........................................31

Chapter 2: Installation .......................................................................................................................................................33

Reviewing Safety Precautions..............................................................................................................................................34

Selecting a Site for the Switch..............................................................................................................................................36

Cabling .................................................................................................................................................................................37

Unpacking the Switch ...........................................................................................................................................................38

Installing the Switch on a Desktop........................................................................................................................................39

Installing a Switch in a Rack .................................................................................................................................................40

Installing an Optional SFP Transceiver ................................................................................................................................43

Cabling and Powering On the Switch ...................................................................................................................................45

Connecting the Twisted Pair Cables .............................................................................................................................45

Connecting the Fiber Optic Cables ...............................................................................................................................45

Powering On the Switch ................................................................................................................................................46

Starting a Management Session ..........................................................................................................................................48

Chapter 3: Troubleshooting ..............................................................................................................................................49

Appendix A: Technical Specifications .............................................................................................................................51

Contents

Physical Specifications .........................................................................................................................................................51

Environmental Specifications................................................................................................................................................51

Power Specifications.............................................................................................................................................................51

Safety and Electromagnetic Emissions Certifications...........................................................................................................52

Connectors and Port Pinouts ................................................................................................................................................52

Figure 1: RJ-45 Connector and Port Pin Layout............................................................................................................... 52 7

Figure 2: AT-FS750/24POE Front and Back Panels ........................................................................................................... 17

Figure 3: System LEDs........................................................................................................................................................ 20

Figure 4: POE Port LEDs .................................................................................................................................................... 21

Figure 5: 10/100Base-T Non-PoE Port LEDs...................................................................................................................... 22

Figure 6: Uplink Combo Port LEDs...................................................................................................................................... 22

Figure 7: Power Workgroup Topology................................................................................................................................. 30

Figure 8: Collapsed Backbone - Hub Topology................................................................................................................... 31

Figure 9: Attaching the Rubber Feet ................................................................................................................................... 39

Figure 10: Attaching the Rack-Mount Bracket ..................................................................................................................... 40

Figure 11: Mounting the Switch on the Rack ....................................................................................................................... 40

Figure 12: Removing the Dust Plug from the SFP Slot ....................................................................................................... 43

Figure 13: Inserting the SFP................................................................................................................................................ 44

Figure 14: Connecting the Twisted Pair Data Cables.......................................................................................................... 45

Figure 15: Removing the Dust Plug from the SFP............................................................................................................... 46

Figure 16: Connecting the Fiber Optic Cable ...................................................................................................................... 46

Figure 17: Plugging in the AC Power Cord.......................................................................................................................... 47

Figure 18: AT-S88 Management Software Main Page ........................................................................................................ 48

Figure 19: RJ-45 Connector and Port Pin Layout................................................................................................................ 52

Figure 1. RJ-45 Connector and Port Pin Layout 52

Figures

Tables

Table 1. Safety Symbols .....................................................................................................................................................12

Table 2. System LEDs ........................................................................................................................................................20

Table 3. 10/100Base-T POE Port LEDs .............................................................................................................................21

Table 4. 10/100Base-T Non-PoE Port LEDs ......................................................................................................................22

Table 5. Uplink Combo Port LEDs ......................................................................................................................................23

Table 6. IEEE 802.3af Class vs. Power Levels ..................................................................................................................26

Table 7. Twisted Pair Cabling and Distances .....................................................................................................................37

Table 8. MDI Pin Signals (10Base-T or 100Base-TX) ........................................................................................................52

Table 9. MDI-X Pin Signals (10Base-T or 100Base-TX) ....................................................................................................53

Tables

Preface

This guide provides the hardware installation instructions for your

AT-FS750/24POE Fast Ethernet switch. This preface contains the

following sections:

 “Safety Symbols Used in this Document” on page 12

 “Where to Find Web-based Guides” on page 13

 “Contacting Allied Telesis” on page 14

Preface

Safety Symbols Used in this Document

This document uses the safety symbols defined in Table 1.

Table 1. Safety Symbols

Symbol Meaning Description

Caution Performing or omitting a specific action may

result in equipment damage or loss of data.

Warning Performing or omitting a specific action may

result in electrical shock.

AT-FS750/24POE Fast Ethernet Smart Switch Installation Guide

Where to Find Web-based Guides

The installation and user guides for all Allied Telesis products are available

in portable document format (PDF) on our web site at

www.alliedtelesis.com. You can view the documents online or download

them onto a local workstation or server.

Preface

Contacting Allied Telesis

This section provides Allied Telesis contact information for technical

support as well as sales or corporate information.

Online Support You can request technical support online by accessing the Allied Telesis

Knowledge Base from the following web site:

www.alliedtelesis.com/support. You can use the Knowledge Base to

submit questions to our technical support staff and review answers to

previously asked questions.

Email and

Telephone

Support

For Technical Support via email or telephone, refer to the Allied Telesis

web site: www.alliedtelesis.com. Select your country from the list

displayed on the website. Then select the appropriate menu tab.

Returning

Products

Products for return or repair must first be assigned a Return Materials

Authorization (RMA) number. A product sent to Allied Telesis without a

RMA number will be returned to the sender at the sender’s expense.

To obtain an RMA number, contact the Allied Telesis Technical Support

group at our web site: www.alliedtelesis.com/support/rma. Select your

country from the list displayed on the website. Then select the appropriate

menu tab.

For Sales or

Corporate

Information

You can contact Allied Telesis for sales or corporate information at our

web site: www.alliedtelesis.com. Select your country from the list

displayed on the website. Then select the appropriate menu tab.

Warranty The AT-FS750/24POE has a Lifetime Warranty (two years fan and PSU).

Go to www.alliedtelesis.com/warranty for the specific terms and

conditions of the warranty and for warranty registration.

Chapter 1

Overview

The AT-FS750/24POE Fast Ethernet Smart switch is a Layer 2 Fast

Ethernet switch designed to simplify the task of creating or expanding an

Ethernet or Fast Ethernet network.

This chapter contains the follows sections:

 “Features” on page 16

 “Front and Back Panels” on page 17

 “Ports” on page 18

 “LEDs” on page 20

 “Power Supply” on page 24

 “Power over Ethernet” on page 25

 “Ethernet Switching Basics” on page 27

 “Network Topologies” on page 30

Chapter 1: Overview

Features

The features of the AT-FS750/24POE Fast Ethernet Smart switch include:

 LEDs for unit and port status

 24 Auto-Negotiating 10/100Base-T twisted pair ports with RJ-45

connectors

 Two uplink combo ports (combination of one 10/100/1000Base-T

twisted pair port and one Gigabit small form-factor pluggable (SFP)

port)

 Auto MDI/MDI-X on the twisted pair ports

 IEEE 802.3 and IEEE 802.3u compliant

 IEEE 802.3x flow control in full-duplex operation; back pressure in

half-duplex operation

 IEEE 802.1p based QoS support with four priority queues per port

 IEEE 802.1q based tagged up to 4K VLAN support

 IEEE 802.1x port-based and MAC-based authentication with RADIUS

client

 IEEE 802.1D/W spanning tree

 Port mirroring support

 IEEE 802.3ad link aggregation support

 Dynamic Host Configuration Protocol (DHCP) client support

 MAC address table capacity of up to 8K addresses with automatic

aging

 Broadcast storm control

 Web-based configuration using the AT-S88 management software

AT-FS750/24POE Fast Ethernet Smart Switch Installation Guide

Front and Back Panels

Figure 1 illustrates the front and back panels of the AT-FS750/24POE Fast

Ethernet Smart switch.

Figure 1. AT-FS750/24POE Front and Back Panels

1088

AT-FS750/24POE

24 Port 10/100 Mbps WebSmart Switch

with 2 Combo Uplinks + 12 POE Ports

10 12

11 13

PD ON

PD ERROR

LINK

ACT

100M

10M

1000M

100M

PORT ACTIVITY

10M

13 15 17 19 21 23

14 16 18 20 22 24

POE

PWR

SYSTEM

10/100 POE PORTS

CLASS 1

LASER PRODUCT

SFP

10/100/1000Base-T

SFP

10/100/1000Base-T

UPLINK PORTS

10/100 PORTS

10/100Base Twisted Pair Ports

Port LEDs

Uplink Combo Ports

System LEDs

1089

Chapter 1: Overview

Ports

The AT-FS750/24POE Fast Ethernet Smart switch features 24 twisted

pair ports and two uplink combo ports.

Twisted Pair

Ports

The twisted pair ports feature 8-pin RJ-45 connectors. (For the port

pinouts, refer to “Connectors and Port Pinouts” on page 52.)

The ports on the AT-FS750/24POE Fast Ethernet Smart switch are

10Base-T and 100Base-TX compliant and are capable of 10 megabits per

second (Mbps) and 100 Mbps speeds.

The ports are IEEE 802.3u Auto-Negotiation compliant. With Auto-

Negotiation, the switch automatically matches the highest possible

common speed between each switch port and each end node. For

example, if an end node is capable of only 10 Mbps, the switch sets the

port connected to the end node to 10 Mbps.

Each twisted pair port on the switch can operate in either half- or full-

duplex mode. The twisted pair ports are IEEE 802.3u-compliant and Auto-

Negotiate the duplex mode setting.

Note

In order for the switch to set the duplex mode for each port correctly,

the end nodes that you connect to the switch ports should also use

Auto-Negotiation. Otherwise, a duplex mode mismatch can occur,

affecting network performance. For further information, refer to

“Duplex Mode” on page 27.

Each twisted pair port has a maximum operating distance of 100 m

(328 feet).

For 10 Mbps operation, Category 3 or better 100 ohm shielded or

unshielded twisted pair cabling is required. For 100 or 1000 Mbps

operation, Category 5 and Enhanced Category 5 (5E) 100 ohm shielded

or unshielded twisted pair cabling is required.

The twisted pair ports are auto-MDI. They automatically configure

themselves as either MDI or MDI-X. This feature allows you to use either

straight-through or crossover twisted pair cables to connect devices to the

ports.

Uplink Combo

Ports

Because all other twisted pair ports on the AT-FS750/24POE Fast

Ethernet Smart switch are operating at 10 Mbps and 100 Mbps speeds,

the uplink combo ports (ports 25 and 26) provide fiber optic connectivity

for the 1000 Mbps speed. Each uplink combo port consists of one 10/100/

1000Base-T twisted pair port and one SFP port. If both uplink ports are

AT-FS750/24POE Fast Ethernet Smart Switch Installation Guide

connected, the SFP port takes precedent over the twisted pair port.

Chapter 1: Overview

LEDs

The AT-FS750/24POE Fast Ethernet Smart switch provides the LEDs

described in this section.

System LEDs The switch has two system-level LEDs, Power and PoE, as shown in

Figure 2 and described in Table 2.

Figure 2. System LEDs

10/100Base-T

POE Port LEDs

Ports 1 through 12 each have three LEDs as shown in Figure 3 and

described in Table 3.

POE

PWR

SYSTEM

10/100 POE PORTS

Table 2. System LEDs

LED State Description

Power Green The switch is powered up and operating normally.

Blinking Green The switch is starting up, performing a self-test, or

dowloading software.

Off The switch is powered off.

PoE Green POE is available for the POE ports.

Amber POE failed.

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Allied Telesis WebSmart AT-FS750/24POE User manual

Brand: Allied Telesis

Model: WebSmart AT-FS750/24POE

Category: Network switches

Type: User manual

This manual is also suitable for

AT-FS750/24POE

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