Allied Telesis AT-3726 User Manual

INSTALLATION GUIDE

Ethernet
Centre
Fast
Ethernet
COM

AT-3714F AT-3726 Switch

Fiber
®
ATM
PN 613-10708-00 Rev. B
Copyright  1998 Allied Telesyn International, Corp. All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesyn International, Corp.
Centre Com is a registered trademark of Allied Telesyn International, Corp.
All other product names, company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective owners.
Allied Telesyn International, Corp. 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 Telesyn International, Corp. 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 Telesyn International, Corp. has been advised of, known, or should have known, the possibility of such damages.
Electrical Safety and Installation Requirements for AT-3726
STANDARDS : This product meets the following standards.
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 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 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 by the manufacturer or the FCC can void your right to operate this equipment.
Canadian Department of Communications
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
RFI Emission EN55022 Class A Immunity EN50082-1
IMPORTANT : This equipment must be operated in accordance with safety precautions. To see any safety warnings in this guide in
multiple languages, refer to Appendix A, Translated Safety Information, at the page number indicated by the icon.
WICHTIG : Für den Betrieb dieses Gerätes ist die Einhaltung von Sicherheitsvorkehrungen erforderlich. Wenn Sie
eine der Sicherheitswarnungen dieser Anleitung in mehrsprachiger Übersetzung lesen möchten, finden Sie diese in Anhang A, "Übersetzte Sicherheitsinformationen", unter der Seitennummer , auf die mit dem Symbol verwiesen wird. (German)
VIGTIGT : Dette udstyr skal bruges i overensstemmelse med sikkerhedsadvarslerne. Sikkerhedsadvarslerne i denne
flersprogede håndbog kan findes i tillæg A oversatte sikkerhedsinformationer på det sidenummer, der er angivet ved
-symbolet. (Danish)
BELANGRIJK : Dit apparaat moet in overeenstemming met de veiligheidsvoorschriften worden gebruikt. Om
veiligheidswaarschuwingen in deze handleiding in meerdere talen te zien, refereren aan Aanhangsel A, Vertaalde veiligheidsinformatie, op de door het symbool aangegeven pagina. (Dutch)
IMPORTANT : Cet équipement doit être utilisé conformément aux instructions de sécurité. Pour consulter les
avertissements en diverses langues dans ce guide, reportez-vous à l’annexe A, « Traductions des informations de sécurité », qui figure à la page signalée par l’icône . (French)
TÄRKEÄÄ : Tätä laitetta on käytettävä turvaohjeiden mukaisesti. Tässä ohjeessa olevat turvallisuusvaroitukset
löytyvät useammalla kielellä liitteen A "Käännetyt turvaohjeet" sivulta, joka on merkitty -kuvakkeella. (Finnish)
IMPORTANTE : questa apparecchiatura deve essere utilizzata rispettando le norme di sicurezza. Per le avvertenze
di sicurezza in più lingue contenute in questa guida, consultare l'Appendice A, Informazioni sulla sicurezza tradotte alla pagina indicata dall'icona . (Italian)
VIKTIG : Dette utstyret skal brukes i samsvar med sikkerhetsregler. Du kan se all sikkerhetsinformasjonen i denne
veiledningen på flere språk ved å slå opp i Tillegg A i heftet "Oversatt sikkerhetsinformasjon" på sidetallet angitt av symbolet . (Norwegian)
iii
Electrical Safety and Installation Requirements for AT-3726
IMPORTANTE : Este equipamento tem que ser operado segundo as medidas de precaução de segurança. Para ver
qualquer dos avisos contidos neste guia em vários idiomas, consultar o Anexo A, da Informação de Segurança Traduzido no número de página indicado pelo ícone . (Portuguese)
IMPORTANTE : La operación de este equipo debe llevarse a cabo cumpliendo con las precauciones de seguridad.
Para ver cualquier advertencia de seguridad de esta guía en múltiples idiomas, consulte el Apéndice A, Información traducida de seguridad en la página cuyo número indica el icono . (Spanish)
OBS ! Alla nödvändiga försiktighetsåtgärder måste vidtas när denna utrustning används. För flerspråkiga
säkerhetsvarningar i denna handledning hänvisas du till den sida som följer efter ikonen i Bilaga A, Översatt säkerhetsinformation. (Swedish)
iv
Electrical Safety and Installation Requirements for AT-3714F
STANDARDS : This product meets the following standards.
Declaration Of Conformity
Manufacturers Name: Allied Teleysn International, Corp.
Manufacturers Address: 950 Kifer Road
Manufacturers Telephone: 408-730-0950 Declares that the product: Fiber Ethernet Switch Model Number: AT-3714F
Complies with FCC Part 15B, Class B Limits: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This
device must not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment, generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with instructions, may cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encourage to try to correct the interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and the receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Changes and modifications not expressly approved by the manufacturer or registrant of this equipment can void your authority to operate this equipment under Federal Communications Commission rules.
Sunnyvale, CA 94086 USA
Canadian Department of Communications
This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
RFI Emission EN55022 Class B Immunity EN50082-1
IMPORTANT : This equipment must be operated in accordance with safety precautions. To see any safety warnings in this guide in
multiple languages, refer to Appendix A, Translated Safety Information, at the page number indicated by the icon.
WICHTIG : Für den Betrieb dieses Gerätes ist die Einhaltung von Sicherheitsvorkehrungen erforderlich. Wenn Sie
eine der Sicherheitswarnungen dieser Anleitung in mehrsprachiger Übersetzung lesen möchten, finden Sie diese in Anhang A, "Übersetzte Sicherheitsinformationen", unter der Seitennummer , auf die mit dem Symbol verwiesen wird. (German)
VIGTIGT : Dette udstyr skal bruges i overensstemmelse med sikkerhedsadvarslerne. Sikkerhedsadvarslerne i denne
flersprogede håndbog kan findes i tillæg A oversatte sikkerhedsinformationer på det sidenummer, der er angivet ved
-symbolet. (Danish)
BELANGRIJK : Dit apparaat moet in overeenstemming met de veiligheidsvoorschriften worden gebruikt. Om
veiligheidswaarschuwingen in deze handleiding in meerdere talen te zien, refereren aan Aanhangsel A, Vertaalde veiligheidsinformatie, op de door het symbool aangegeven pagina. (Dutch)
IMPORTANT : Cet équipement doit être utilisé conformément aux instructions de sécurité. Pour consulter les
avertissements en diverses langues dans ce guide, reportez-vous à l’annexe A, « Traductions des informations de sécurité », qui figure à la page signalée par l’icône . (French)
v
Electrical Safety and Installation Requirements for AT-3714F
TÄRKEÄÄ : Tätä laitetta on käytettävä turvaohjeiden mukaisesti. Tässä ohjeessa olevat turvallisuusvaroitukset
löytyvät useammalla kielellä liitteen A "Käännetyt turvaohjeet" sivulta, joka on merkitty -kuvakkeella. (Finnish)
IMPORTANTE : questa apparecchiatura deve essere utilizzata rispettando le norme di sicurezza. Per le avvertenze
di sicurezza in più lingue contenute in questa guida, consultare l'Appendice A, Informazioni sulla sicurezza tradotte alla pagina indicata dall'icona . (Italian)
VIKTIG : Dette utstyret skal brukes i samsvar med sikkerhetsregler. Du kan se all sikkerhetsinformasjonen i denne
veiledningen på flere språk ved å slå opp i Tillegg A i heftet "Oversatt sikkerhetsinformasjon" på sidetallet angitt av symbolet . (Norwegian)
IMPORTANTE
qualquer dos avisos contidos neste guia em vários idiomas, consultar o Anexo A, da Informação de Segurança Traduzido no número de página indicado pelo ícone . (Portuguese)
IMPORTANTE : La operación de este equipo debe llevarse a cabo cumpliendo con las precauciones de seguridad.
Para ver cualquier advertencia de seguridad de esta guía en múltiples idiomas, consulte el Apéndice A, Información traducida de seguridad en la página cuyo número indica el icono . (Spanish)
OBS ! Alla nödvändiga försiktighetsåtgärder måste vidtas när denna utrustning används. För flerspråkiga
säkerhetsvarningar i denna handledning hänvisas du till den sida som följer efter ikonen i Bilaga A, Översatt säkerhetsinformation. (Swedish)
: Este equipamento tem que ser operado segundo as medidas de precaução de segurança. Para ver
vi

Table of Contents

Electrical Safety and Installation Requirements for AT-3726 ....................................................... iii
Electrical Safety and Installation Requirements for AT-3714F ...................................................... v
Preface .......................................................................................................................................... Preface-i
Purpose of This Guide ...........................................................................................................................................................................Preface-i
How This Guide is Organized ..............................................................................................................................................................Preface-i
Document Conventions ......................................................................................................................................................................Preface-ii
Where to Find Related AT-3714F, AT-3726 Guides ...................................................................................................................Preface-iii
Chapter 1
AT-3714F, AT-3726 Hardware Description ..................................................................................... 1-1
Physical Description ..........................................................................................................................................................................................1-2
Hardware Features ............................................................................................................................................................................................1-2
Network Management Features ...................................................................................................................................................................1-3
MAC Addressing .................................................................................................................................................................................................1-3
Store and Forward/Cut-Through (fragment-free) Modes ..........................................................................................................1-3
Transmit Pacing ..................................................................................................................................................................................................1-4
Mirror Port ....................................................................................................................................................................................................1-4
10/100BaseTX/FX Media Dependent Adapter ...............................................................................................................................1-5
RS232 Connector .......................................................................................................................................................................................1-5
Reset Button ................................................................................................................................................................................................1-5
AC Power Connector ................................................................................................................................................................................1-5
Chapter 2
Installing the Switch ...........................................................................................................................2-1
Verifying Switch Package Contents .............................................................................................................................................................2-1
Safety Information .............................................................................................................................................................................................2-2
Preparing the Site ..............................................................................................................................................................................................2-3
Rack Mounting the Unit ...................................................................................................................................................................................2-4
Setting Up Terminal for Local Management Using Omega .......................................................................................................2-7
Switch Default Settings ...........................................................................................................................................................................2-8
Media Dependent Adapters ...........................................................................................................................................................................2-9
Verifying Package Contents ..................................................................................................................................................................2-9
Media Dependent Adapter Features .................................................................................................................................................2-9
Installing a Media Dependent Adapter ...........................................................................................................................................2-10
MDA LEDs ...................................................................................................................................................................................................2-11
vii
Table of Contents
Chapter 3
Troubleshooting .................................................................................................................................. 3-1
At the First Sign of a Problem ........................................................................................................................................................................3-1
Network Cabling Problems .............................................................................................................................................................................3-2
Calling Technical Support .......................................................................................................................................................................3-2
How the Switch Reports Problems ..............................................................................................................................................................3-3
PORT ACTIVITY LED on any Port is Off ................................................................................................................................................3-4
PORT ACTIVITY LED on any Port is OFF ..............................................................................................................................................3-4
POWER LED is Off .......................................................................................................................................................................................3-4
FAULT LED is On .........................................................................................................................................................................................3-5
Chapter 4
Switch Configurations ........................................................................................................................ 4-1
Standalone Switch Configuration ................................................................................................................................................................4-1
Workgroup Switch Configuration ................................................................................................................................................................4-3
Appendix A
Translated Safety Information ......................................................................................................... A-1
Appendix B
Technical Specifications ................................................................................................................... B-1
Media Dependent Adapter Cabling Distances ........................................................................................................................................B-2
viii

Preface

.

Purpose of This Guide

This guide is written for installers and network administrators who are responsible for installing and maintaining the switch

How This Guide is Organized

This guide consists of the following sections: Chapter 1, Hardware Description, describes the features and
functions of the switch. Chapter 2, Installing the AT-3714F and AT-3726 Switch, describes the
procedures for installing the switch. Chapter 3, Troubleshooting, describes how to troubleshoot the
switch. Chapter 4, S witch Configur ation, presents topological illustrations for
the switch. Appendix A, Tr anslated Safety Warnings, contains all of the translated
safety warnings documented throughout this guide. Appendix B, Technical Specifications, presents in tabular form the
switch specifications. At the end of this guide is an Index listing index entries according to
subject matter.
Preface-i
Preface

Document Conventions

The conventions used in this guide are as follows:
Note
A note provides additional information.
Warning
A warning indicates that performing or omitting a specific action may result in bodily injury.
Caution
A caution indicates that performing or omitting a specific action may result to equipment damage or loss of data.
ii-Preface
AT-3714F and AT-3726 Installation Guide

Where to Find Related AT-3714F, AT-3726 Guides

Allied Telesyn wants our customers to be well informed by providing the most up-to-date and most easily accessible way to find our guides and other technical information by visiting our website at:
www.alliedtelesyn.com/manuals.htm
.
AT-3726, AT-3714F Documentation
AT-3714F, AT-3726 Installation Guide, 613-10708-00
AT-3701, AT-3701F/SC Quick Install Guide, 613-10669-00 (shipped with product)
AT-3714F Quick Install Guide, 613-10707-00 (shipped with product)
AT-3714F Translated Safety Information Booklet, 613-10717-00 (shipped with product)
AT-S20 User’s Guide, 613-10716-00 AT-3726 Quick Install Guide,
613-10668-00 (shipped with product) AT-3726 Translated Safety Information Booklet,
613-10673-00 (shipped with product)
Web-
based
Printed
Preface-iii
Chapter 1

AT-3714F, AT-3726 Hardware Description

The AT-3714F switch provides 12 Ethernet 10Base-FL ports and one built-in 100Base-FX port. The AT-3726 switch is a standalone, managed Ethernet switch that provides 24 10Base-T ports and one built-in 10/100Base-TX port. Both switches include a 100Base-X slot that can be configured with an optional 10/100Base-TX or 100Base-FX port.
The switches are intended for connections to the desktop as well as workgroup applications and implement direct high-speed server and backbone connections. Full duplex capability on all ports eliminates collisions and provides up to 20 Mbps on the 10Base ports and up to 200 Mbps of bandwidth on the 100Base ports to servers, routers, and other switches. With built-in management, this switch provides seamless management capability such as SNMP.
A T-3726
CentreCOM
PORT B 100BASE-TX MIRROR PORT RS-232
3701
100BASE-TX
X
1X 3X 5X 7X 9X 11X 13X 15X 17X 19X 21X 23X
2XA4X6X8X10X 12X 14X 16X 18X 20X 22X 24X
10BASE-T PORT ACTIVITY
LINK LINK ACTIVITY
1357911131517192123
2AB 4 6 8 10 12 14 16 18 20 22 24
X
A T-3714F
10BASE-FL ETHERNET SWITCH with FAST ETHERNET 100BASE ACCESS
MDA
B
3701
100BASE-TX
X
100BASE-FX MIRROR PORT RS-232
TX RX
1357911
A
TX RX TX RX TX RX TX RX TX RX TX RX
24681012
10BASE-FL
PORT ACTIVITY
LINK LINK ACTIVITY
1357911
2AB 4 6 8 10 12
X
TERMINAL PORT
TERMINAL PORT
STATUS
FAULT
RESET
POWER
STATUS
FAULT
RESET
POWER
Figure 1-1 AT-3726 and AT-3714F Switches
1-1
AT-3714F, AT-3726 Hardware Description

Physical Description

The switches have the following major front panel components:
24 Ethernet 10Base-T RJ45 ports with one 10/100Base-TX port (Fast ethernet) (AT-3726); 12 10Base-FL ports (SC or ST) with one 100Base-FX (fiber SC) port (AT-3714F)
Optional Media Dependent Adapter (MDA)--100Base-X port can be configured either with 10/100Base-TX (RJ45) or 100Base-FX port (fiber SC)
Port Mirroring (Port M) 10Base-T RJ45 RS232 (DB9) connector (out-of-band/Local Omega) Reset button

Hardware Features

System and port status LEDs
The switches have the following major hardware features:
Full duplex capability on all ports eliminates collisions and provides up to 20 Mbps on the 10Base ports and up to 200 Mbps of bandwidth on the 100Base ports to servers, routers, and other switches
Auto-negotiation on all 10BaseT and 10/100BaseTX ports in compliance with IEEE 802.3u
Port mirroring
Non-blocking, clear-channel architecture delivers wire-speed switching and up to 880 Mbps aggregate bandwidth for exceptional performance (AT-3726); 640Mbps for AT-3714F
1-2
Shared memory architecture with 1M of packet buffers per ASIC chip (two ASICs for AT-3726; one ASIC for AT-3714F)
Store-and-forward and Cut-through (fragment-free) switching modes
Stores up to 1954 MAC addresses
In-band Telnet capability for switch management
Out-of-band capability with RS232 connector for switch management
Flash memory for convenient upgrades

Network Management Features

The following lists the switch’s major network management features.
SNMP Management Information Base (MIB) II, SNMP MIB
extensions, Bridging MIB (RFC 1493), and Telnet support deliver comprehensive in-band management
Local Omega, a menu-based management console, provides
detailed out-of-band management
AT-3714F and AT-3726 Installation Guide

MAC Addressing

Store and
Forward/
Cut-Through
(fragment-free)
Modes
IEEE 802.1d Spanning Tree Protocol support for redundant
backbone connections and loop-free networks simplifies configuration and improves fault tolerance
The switch has hardware base support with External Address Lookup Engine (EALE) for static entries and self-learning of active MAC addresses. The switch can support up to 1954 MAC addresses.
With store and forward or cut-through (fragment-free) switching modes, network administrators can optimize performance and enable full-error checking.
The store and forward mode (default), works in the following way. First, as the packet is being received, it is placed in a buffer and held there until the entire packet is received. The packet is also being checked for errors and is not forwarded unless the entire packet is error-free. This mode is automatic when data is exchanged between 10Base and 100Base ports.
1-3
AT-3714F, AT-3726 Hardware Description
With the Cut-through (fragment-free) method, the switch starts to forward the incoming packet to its destination while the packet is still being received. Cut-through (fragment-free) provides low latency for forwarding frames and also filtering fragment frames by not transmitting a frame until 64 bytes have been received by the switch. In Cut-through (fragment-free) mode, fragment frames or runts and short frames (frames less than 64 bytes) are filtered, thus preventing error frames from propagating throughout the network causing congestion.
Select the Cut-through (fragment-free) method if you are running time-sensitive applications because it provides lower latency through the switch.

Transmit Pacing

Transmit pacing is enabled on a per port basis. When transmit pacing is enabled, the switch alters its transmission routine during heavy network activity. When the switch senses heavy traffic, it alters its transmission routing by intentionally inserting additional delay between transmission attempts. This added delay reduces collision rates, thus reducing the number of transmission attempts, which helps reduce CPU utilization, lightens overall network traffic, and allows the network time to normalize before attempting transmission.
1-4
If this additional delay is not applied, the switch attempts to transmit on an overloaded network, increasing the number of unsuccessful transmission attempts.
For detailed information concerning software and management features, see the “AT- S20 User’s Guide” located on Allied Telesyn’s website at alliedtelesyn.com/manuals.htm.

Mirror Port The switch has a dedicated Mirror port. Administrators can use the

Omega software to configure the Mirror port and modes. The Mirror port can monitor traffic on any 10Mbps port, but only one port at a time. An extended LANalyzer or an RMON probe can be connected to the port mirroring connector using a standard Category 3 UTP cable.
In full duplex mode the user needs to determine if they want to monitor TX or only RX data, but in only one direction at a time. In half duplex mode, both RX/TX can be monitored simultaneously.
AT-3714F and AT-3726 Installation Guide
10/100BaseTX/
FX Media
Dependent
Adapter
The MDA’s LEDs, one for Activity and the other for Link status, are located on the switch’s front panel under Port Activity. Table 1-1 lists the features of the MDAs. For details concerning how to install an MDA, see Chapter 2, Installing a Media Dependent Adapter.
Table 1-1 Media Dependent Adapter Features
Adapter
AT-3701 UTP 10/100Base-TX RJ45
AT-3701F/SC Fiber SC 100Base-FX: multimode SC fiber
Supported
Cable
Description
Ethernet port: auto-negotiated speed and duplex mode 10/100Base-T max. segment length: 330’ (100m), Category 5 UTP
connector 100Base Ethernet port 100Base-FX: max. segment length
1.25 miles (2 km for full duplex, 412 M for half duplex)
micron multimode fiber
; 50/125 and 62.5/125
RS232
Connector
The RS232 connector provides out-of-band management via a VT-100 terminal or MS-Windows’ VTERM terminal emulation using a straight-through cable.
Reset Button This recessed button can be activated using the tip of a ball point
pen to run power-on self test.
AC Power
Connector
The switch has a single power supply, which has autoswitch AC inputs. The input voltage range is from 120-240 VAC, 50/60 Hz.
1-5
Chapter 2

Installing the Switch

The AT-3714F, AT-3726 switch is 1.5 Rack Unit (RU) high and can be positioned on a desktop as a standalone unit or rack-mounted in a standard 19-inch rack.

Verifying Switch Package Contents

Make sure the following hardware components are included in your switch package. If any of the following items are missing or damaged, contact your sales representative.
AT-3714F or AT-3726 SwitchAT-3714F or AT-3726 Switch Quick Install GuideTranslated Safety Information BookletWarranty card2 mounting brackets6 flathead Phillips screws Power cord (Americas only)
2-1
Installing the Switch

Safety Information

Warning
ELECTRIC SHOCK HAZARD
To prevent ELECTRIC shock, do not remove cover. No user-service­able parts inside. This unit contains HAZARDOUS VOLTAGES and should only be opened by a trained and qualified technician. To avoid the possibility of ELECTRIC SHOCK, disconnect electric power to the product before connecting or disconnecting the LAN cables. A-4
Laser
This is a “CLASS 1 LED PRODUCT.” A-3
LIGHTNING DANGER
DO NOT WORK on equipment or CABLES during periods of LIGHTNING ACTIVITY. A-12
Caution
POWER CORD IS USED AS A DISCONNECTION DEVICE. TO DE-ENERGISE EQUIPMENT disconnect the power cord. A-10
ELECTRICAL—A UT O V OLTA GE ADJUSTMENT This product will automatically adjust to any voltage between the ranges shown on the label. A-15
ELECTRICAL—TYPE CLASS 1 EQUIPMENT THIS EQUIPMENT MUST BE EARTHED. Power plug must be
connected to a properly wired earth ground socket outlet. An improperly wired socket outlet could place hazardous voltages on accessible metal parts. A-6
ELECTRICAL—CORD NOTICE
Use power cord, maximum 4.5 meters long, rated 6 amp minimum, 250V, made of HAR cordage molded IEC 320 connector on one end and on the other end a plug approved by the country of end use.
A-8
Caution
Air v ents m ust not be blocked and must have free access to the room ambient air for cooling. A-11
Caution
OPERATING TEMPERATURE This product is designed for a maximum ambient temperature of 40° C. A-13
2-2
Caution
ALL COUNTRIES: Install product in accordance with local and National Electrical Codes. A-14

Preparing the Site

AT-3714F and AT-3726 Installation Guide
Make sure that you follow common sense installation site requirements and observe the following:
Make sure that the switch’s power is accessible and cables can
be connected easily.
Cabling should be away from sources of electrical noise such
as radios, transmitters, broadband amplifiers, power lines, and fluorescent fixtures.
Air flow around the switch and through its vents in the side
and rear cannot be restricted.
If you are desk mounting the switch, make sure the switch is
placed on a level, secure desktop.
Do not place objects on top of the switch.Do not expose the switch to moisture or water. Make sure it is in a dust-free environment.Use dedicated power circuits or power conditioners to supply
power to the network devices.
2-3
Installing the Switch

Rack Mounting the Unit

Caution
Do not use power tools to perform this installation.

To rack mount the unit

1. Remove the snap-on plastic feet, as shown in Figure 2-1.
Figure 2-1 Removing the Feet
2. Remove all cables and power cord from the switch (if previously attached).
Caution
Air vents must not be blocked and must have free access to the room ambient air for cooling A-11.
2-4
AT-3714F and AT-3726 Installation Guide
3. Attach the rack-mounting brackets to each side of the switch, using the 6 flathead screws provided.
R PORT
K
RS-232
TERMINAL PORT
STATUS
FAULT
POWER
RESET
Figure 2-2 Attaching Rack-Mounting Brackets
4. Mount the unit in the rack.
5. Apply power to the unit as follows:
Caution
Power cord is used as a disconnection device. To de-energise equip­ment disconnect the power cord. A-10
Attach the power cord to the unit and plug it in the wall outlet. Verify that the PWR LED lights green. See Table 2-1, LEDs
2-5
Installing the Switch
As power is applied to the switch, the switch runs its own internal testing.
Table 2-1 LEDs
LED Color State Description
POWER (system)
Green ON The switch is receiving power,
voltage is within the acceptable range, and the power supply is working.
FAULT (system)
Red ON The switch or management
software is malfunctioning.
Flashing Running diagnostics.
LINK (Ethernet)
Green ON There is a physical link with a
device.
Activity Green Flashing The Ethernet port is receiving/
transmitting packets.
If the POWER LED does not light green, see Chapter 3, “Troubleshooting” for further information.
2-6
AT-3714F and AT-3726 Installation Guide
Setting Up
Terminal for
Local
Management
Using Omega
1. For local management, connect your terminal to the RS232 connector on the switch’s front panel. Use an RS232 DB9 straight-through cable.
Note
The RS232 is for Setup and Diagnostics only. The cable must be dis­connected during normal operation to maintain Emissions Compli­ance.
2. Access your terminal emulator program. Press Return several times to ensure baud configuration (autobaud).
3. Set your terminal to the following
— 8, data bits — 1, stop bits — None, parity
See also Table 2-2, Switch Default Settings.
You are now ready to access the switch’s management software, Omega.
For remote management and further details concerning the Omega management software, refer to the “AT-S20 User’s Guide” located at www.alliedtelesyn.c om/manuals .h tm.
2-7
Installing the Switch
Switch Default
Settings
IP Address 0.0.0.0 Subnet Mask 0.0.0.0 Gateway Address 0.0.0.0 Get community string Public Set community string Private Trap community string Public Port mirroring state Disabled Spanning Tree Protocol Enabled Telnet Access Enabled
Table 2-2 Switch Default Settings
Settings Default
System Name None Password (Omega) No password assigned Download Password ATS20 Port Priority 128 Port Path Cost 100 Auto-negotiate/Half Duplex/Full Duplex Auto-negotiate (AT-3726)
Half Duplex (AT-3714F) Spanning Tree Priority 32768 Active Aging Time 300 seconds Hello Time 2 seconds Transmit Pacing Disabled Bridge Identifier (STP) 32768 (bridge priority) Port Priority (STP) 128 Port Cost (STP) 100 for 10 Mbps ports
10 for 100 Mbps ports
2-8
Store and Forward or, Cut-Through Fragment-Free Store-and-Forward Domain Name None Timeout 5 min.

Media Dependent Adapters

Two types of Media Dependent Adapters (MDAs) can be installed in the AT-3714F, AT-3726 switch: either the AT-3701 (RJ45) or the AT-3701F/SC.
AT-3714F and AT-3726 Installation Guide
Verifying
Package
Contents
Media
Dependent
Adapter
Features
3701
100BASE-TX
X
3701F/SC
100BASE-FX/SC
RXTX
Figure 2-3 AT-3701 and AT-3701F/SC MDA Front Panel
Make sure that you have received the following items:
Media Dependent Adapter (MDA)Three Phillips panhead screwsAT-3701, AT-3701 F/SC Media Dependent Adapter Quick
Install Guide
Warranty card
Table 2-3 lists the MDA features.

Table 2-3 Media Dependent Adapter Features

Adapter
Supported
Cable
Description
AT-3701 UTP 10/100Base RJ45 port
Ethernet port: auto-negotiated speed and duplex mode 10/100Base-T max. segment length: 330’ (100m), Category 5 UTP
AT-3701F/SC Fiber SC 100Base: multimode SC fiber connector
100Base Ethernet port 100Base-FX: max. segment length 1.25 miles (2 km for full duplex, 412 M for half duplex); 50/125 and 62.5/125 micron multimode fiber
2-9
Installing the Switch
Installing a
Media
Dependent
Adapter
To install an MDA, do the following:
1. Disconnect the switch’s power cord.
2. Unscrew the three Phillips head screws on the blank faceplate and save the faceplate and screws for future use.
Caution
Make sure the MD A blank panel is attac hed to the unit if the MDA slot is vacant.
3. The standoff on the MDA serves as a guide to slide the MDA correctly into its slot so that the MDA’s 50-pin female connector attaches securely to the 50-pin male connector on the main board. See Figure 2-4 and Figure 2-5 when performing the next step.
4. Slide the MDA into its empty slot making sure that the standoff is aligned properly prior to connecting the 50-pin connector.
5. Attach the female 50-pin female connector to its counterpart.
3701
100BASE-TX
X
Figure 2-4 Guiding the MDA (AT-3701) Standoff into Its Slot
2-10
AT-3714F and AT-3726 Installation Guide
S
Centre
PORT B
100BASE-TX
3701
100BASE-TX
1X 3X 5X 7X 9X 11X
X
AX
2X
4X 6X
Figure 2-5 Connecting the 50-Pin Female Connector
10BA
6. Attach the three Phillips panhead screws that were shipped with the MDA.
7. Apply power to the unit as follows:
Caution
Power cord is used as a disconnection device. To de-energise equip­ment disconnect the power cord. A-10
Re-attach the power cord to the unit and plug it in the wall outlet. Verify that the PWR LED lights green. See Table 2-4.
MDA LEDs Table 2-4 lists and defines the MDA LEDs. Note that the MDA LEDs
are located on the front panel of the switch under Port Activity.
Table 2-4 Media Dependent Adapter LEDs
LED Color State Description
LINK Green ON There is a good physical
link with a device.
ACTIVITY Green Flashing
or ON
The Ethernet port is receiving/transmitting packets.
For troubleshooting techniques, see Chapter 3, “Troubleshooting.”
2-11
Chapter 3

T roubleshooting

At the First Sign of a Problem

Perform the following tasks when you first become aware of a problem with the switch:
Make sure the power cord is securely connected and the
power voltage is not fluctuating.
Check the data cables for secure connections and make sure
the device at the other end of a connection is operational.
Press the RESET button so the switch can run self- diagnostics.
Use Omega to run diagnostics and read statistics. Refer to Chapter 5,
“Diagnostics,” and Chapter 3, “Statistics: Received and Transmitted Ethernet Frames,” in the “AT-S20 User’s Guide” for
further details concerning Omega.
If the management software has failed, and the switch
continues to forward packets, when convenient power on/off or reboot the switch.
If problems still persist, for example, the Fault LED remains on,
call Allied Telesyn’s Technical Support or visit Allied Telesyn’s website at www.alliedtelesyn.com.
3-1
Troubleshooting

Network Cabling Problems

If you have 100Base-TX (Fast-Ethernet), some network problems may be related to exceeding cabling distances. Refer to the standard IEEE
802.3u, Clause 29.3.1.2 on “Worst Case Path Delay Value.” This document specifies that the collision domain diameter must be within the following limits:
Under 100 m (330 feet) for TX cablingUnder 412 m (1331.56 feet) for half duplex FX cabling
Calling
Technical
Support
Provide Technical Support with the following information:
Switch model and serial numberSoftware version numberDescription of the problem
See Allied Telesyn’s website at www.alliedtelesyn.com for a list of worldwide Allied Telesyn locations.
3-2

How the Switch Reports Problems

The switch detects and processes errors as follows:
The LEDs indicate problems with the port and power.
Table 3-1 describes the switch LEDs.
In a TCP/IP environment, if you have configured the software
correctly, the management software triggers an SNMP trap message. As a result, the software then sends traps to alert the network manager when a trigger occurs. This type of software configuring allows the network administrator/manager to pro-actively monitor their network.
Table 3-1 lists and describes the switch LEDs.
Table 3-1 LEDs
AT-3714F and AT-3726 Installation Guide
Name Color State Description
Fault Red ON
Indicates that the management software is malfunctioning, a problem exists with the serial interface, diagnostics is running, or a hardware problem.
OFF
Power Green ON
Indicates no problem. Indicates that power is being applied to the switch
Indicates the voltage has dropped below acceptable
Link OK (Ethernet)
Activity (TX/RX)
OFF
Green ON
OFF
Green Flashing Indicates the Ethernet port is receiving/transmitting
levels or the power cord is loose. Indicates that there is a good physical link with a
device. Indicates the physical link is broken.
packets.
3-3
Troubleshooting
PORT ACTIVITY
LED on any Port
is Off
PORT ACTIVITY
LED on any Port
is OFF
This may indicate:
Data cable is loose.The device at the other end of the connection has been turned
off.
The port is disabled through the software.
Perform the following steps in sequence; you need not proceed to the next step if the problem is resolved:
1. Make sure the data cables are secure.
2. Make sure the device at the end of the connection is turned on.
3. Call Allied Telesyn’s Technical Support. OFF may indicate that someone has manually disabled the port
through the software. Perform the following steps in sequence; you need not proceed to
the next step if the problem is resolved:
POWER LED
is Off
1. Log on to Omega if you can and check the port status (Port status and configuration><
port number
>).
2. Refer to the “AT-S20 User’s Guide” to check that the port is Disabled, or that someone has manually disabled the port through the software for a specific reason. Verify that the reason no longer exists before you enable this port (Port status and configuration).
3. Call Allied Telesyn’s Technical Support. If there is no power to the switch, it cannot function.
A POWER LED that is off may indicate:
The voltage has dropped below acceptable levels.The power supply has failed, is malfunctioning, or loss of
power to the power supply.
The power cord is loose.A rise in switch temperature because of fan failure.
3-4
Perform the following steps in sequence; you need not proceed to the next step if the problem is resolved:
AT-3714F and AT-3726 Installation Guide
1. Secure the power cord to the power source and check the POWER LED to see if it is on.
2. Ensure that the voltage is within the required levels in your region.
3. Log on to Omega and run Diagnostics if you can (System administration>Diagnostics) and record any failures.
4. Call Allied Telesyn’s Technical Support and report the results of the tests.
FAULT LED
is On
This might indicate problems with the network management software, such as:
Unsuccessful software downloadsLoose RS232 interface connection
Perform the following steps in sequence; you need not proceed to the next step if the problem is resolved:
1. Reset the switch either by:
— Pressing the RESET button on the front panel, or — Selecting System Administration>Reset and
restart the system from Omega, if you can.
2. Make sure the RS232 connection from the local terminal or PC to the switch is secure; change the cable if necessary.
If you cannot access Omega Local because of a faulty RS232 connection, use Omega Remote via Telnet or manage the switch using SNMP until the problem is fixed.
3. Unplug the switch from the power source, then plug it back in again.
4. Try to log on to Omega and run diagnostics (System administration>Diagnostics).
5. Call Allied Telesyn’s Technical Support.
3-5
Chapter 4
Switch Configurations

Standalone Switch Configuration

Figure 4-1 and Figure 4-2 show the AT-3726 and AT-3714F Switch respectively, used as a standalone switch for a group of heavy traffic users in a large corporate network. Switching is brought to the desktop with a single end-station per switch port. A local server is connected to the 100Mbps Fast Ethernet port.
For 100MB ports; auto-negotiate for 10MB ports (non-fiber)
100BASE-TX
PORT B
Server
Workstation
Uplink to corporate LAN using MDA
10BASE-T
Workstation
STATUS
RS-232
MIRROR PORT
TERMINAL PORT
PORT ACTIVITY
AT- 3726
Workstation
Legend
Dedicated 10Mbps link Dedicated 100Mbps link
Figure 4-1 AT- 3726 Switch in Desktop Configuration
4-1
Switch Configurations
100FX
Full duplex
10BASE-FL ETHERNET SWITCH with FAST ETHERNET 100BASE ACCESS
MDAB100BASE-FX MIRROR PORT RS-232
3701
100BASE-TX
A
TX RX
X
10BASE-FL
1357911
TX RX TX RX TX RX TX RX TX RX TX RX
24681012
AT- 3714F
Server
PORT ACTIVITY
LINK LINK ACTIVITY
1357911
2AB 4 6 8 10 12
STATUS
TERMINAL PORT
FAULT
RESET
POWER
X
Workstation
Workstation
Workstation
Uplink to corporate LAN using MDA
Legend
Dedicated 10Mbps link Dedicated 100Mbps link
Figure 4-2 AT- 3714F Switch in Desktop Configuration
4-2

Workgroup Switch Configuration

Figure 4-3 and Figure 4-4 show how cascaded AT-3726s and AT-3714Fs respectively, fit into a large corporate network with a Fast Ethernet infrastructure. A switch is located on each floor and servers are centralized in one room.
AT- 3726
100 Mbps
AT- 3726
PORT B
AT-3714F and AT-3726 Installation Guide
AT-3612TR Hub
STATUS
RS-232
MIRROR PORT
TERMINAL PORT
PORT ACTIVITY
10BASE-T
100BASE-TX
PORT B
STATUS
RS-232
MIRROR PORT
TERMINAL PORT
PORT ACTIVITY
10BASE-T
100BASE-TX
100TX
Server
100 Mbps
10BaseFL (2KM)
AT-3726
100BASE-TX
PORT B
Backbone
100TX
FORMULA 8200 TX/FX
AT-3612TR Hub
AT-3624TR Hub
10BASE-T
Server
STATUS
RS-232
MIRROR PORT
TERMINAL PORT
PORT ACTIVITY
100TX
Server
Server
Server
Legend
Shared 10Mbps link
Dedicated 10Mbps link Dedicated 100Mbps link
Figure 4-3 AT-3726 Switch in Department Configuration
4-3
Switch Configurations
AT-3606F Hub
AT-3714F
10BASE-FL ETHERNET SWITCH with FAST ETHERNET 100BASE ACCESS
MDAB100BASE-FX MIRROR PORT RS-232
3701
100BASE-TX
A
TX RX
X
10BASE-FL
1357911
TX RX TX RX TX RX TX RX TX RX TX RX
2 4 6 8 10 12
PORT ACTIVITY
LINK LINK ACTIVITY
1357911
2AB 4 6 8 1012
AT-3714F
10BASE-FL ETHERNET SWITCH with FAST ETHERNET 100BASE ACCESS
MDAB100BASE-FX MIRROR PORT RS-232
3701
100BASE-TX
A
TX RX
X
10BASE-FL
1357911
TX RX TX RX TX RX TX RX TX RX TX RX
2 4 6 8 10 12
PORT ACTIVITY
LINK LINK ACTIVITY
1357911
2AB 4 6 8 1012
Server
AT-3606F Hub
STATUS
TERMINAL PORT
FAULT
RESET
POWER
X
STATUS
TERMINAL PORT
FAULT
RESET
POWER
X
AT-3606F Hub
100FX (2KM)
10BASE-FL ETHERNET SWITCH with FAST ETHERNET 100BASE ACCESS
MDAB100BASE-FX MIRROR PORT RS-232
3701
100BASE-TX
A
TX RX
X
Collapsed
Backbone
100FX
RS-232 TERMINAL PORT
AT-3714F
10BASE-FL
1357911
TX RX TX RX TX RX TX RX TX RX TX RX
2 4 6 8 10 12
AT-8216F/SC
10/100BASE-T NETWORK PORTS
100 BASE-FX
9101112
9101112131415 16
STATUS POWER
RESET
STATUS
RESET
POWER
100 BASE-FX
10/100BASE-T NETWORK PORTS
1234
12345678
GREEN - LINK
GREEN - ACTIVITY
YELLOW - DIAG
YELLOW - COLLISION
LINK LINK ACTIVITY
10/100BASE-T NETWORK PORTS
13 14 15 16
10/100BASE-T NETWORK PORTS
5678
PORT ACTIVITY
1357911
2AB 4 6 8 1012
STATUS
TERMINAL PORT
FAULT
POWER
X
Activity
8201
Collision
Link Diag
Activity Collision
Link Diag
100FX
RESET
100FX (2KM)
100FX
Server
Server
Server
Server
100FX
4-4
Legend
Shared 10Mbps link
Dedicated 10Mbps link Dedicated 100Mbps link
Figure 4-4 AT-3714F Switch in Department Configuration
Appendix A

T ranslated Safety Information

IMPORTANT: This appendix contains multiple-language translations for each safety warning in this guide.
WICHTIG: Dieser Anhang enthält mehrsprachige Übersetzungen für alle Sicherheitswarnungen dieser Anleitung. (German)
VIGTIGT: Denne brochure indeholder oversættelser i flere sprog for alle sikkerhedsadvarslerne i denne vejledning. (Danish)
BELANGRIJK: Dit aanhangsel bevat vertalingen in meerdere talen voor elke veiligheidswaarschuwing in deze gids. (Dutch)
IMPORTANT: Cette annexe contient les traductions en diverses langues de tous les avertissements de sécurité mentionnés dans ce Guide. (French)
TÄRKEÄÄ: Tämä liite sisältää kaikki tässä oppaassa olevat turvallisuusvaroitukset usealla kielellä. (Finnish)
IMPORTANTE: questa appendice contiene la traduzione in più lingue di tutte le avvertenze di sicurezza contenute in questa guida. (Italian)
VIKTIG: Dette heftet inneholder oversettelser til flere språk av hver sikkerhetsadvarsel i denne veiledningen. (Norwegian)
IMPORTANTE: Este anexo contém traduções em vários idiomas para cada aviso de segurança neste guia. (Portuguese)
IMPORTANTE: Este apéndice contiene traducciones a múltiples idiomas para cada advertencia de seguridad en esta guía. (Spanish)
OBS! Denna bilaga innehåller flerspråkiga översättningar av varje säkerhetsvarning i denna handledning. (Swedish)
A-1
Translated Safety Information
WARNING: In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.
WARNUNG: Bei Verwendung zu Hause kann dieses Produkt Funkstörungen ervorrufen. In diesem Fall müßte der Anwender angemessene Gegenmaßnahmen ergreifen.
ADVARSEL: I et hjemligt miljø kunne dette produkt forårsage radio forstyrrelse. Bliver det tilfældet, påkræves brugeren muligvis at tage tilstrækkelige foranstaltninger.
WAARSCHUWING: Binnenshuis kan dit product radiostoring veroorzaken, in welk geval de gebruiker verplicht kan worden om gepaste maatregelen te nemen.
MISE EN GARDE : dans un environnement domestique, ce produit peut provoquer des interfér enc es radioélectriques. Auquel cas, l’utilisat eur devra prendre les mesures adéquates.
VAROITUS: Kotiolosuhteissa tämä laite voi aiheuttaa radioaaltojen häiröitä, missä tapauksessa laitteen käyttäjän on mahdollisesti ryhdyttävä tarpeellisiin toimenpiteisiin.
AVVERTENZA: in ambiente domestico questo prodotto potrebbe causare radio interferenza. In questo caso potrebbe richiedersi all’utente di prendere gli adeguati provvedimenti.
ADVARSEL: Hvis dette produktet benyttes til privat bruk, kan produktet forårsake radioforstyrrelse. Hvis dette skjer, må brukeren ta de nødvendige forholdsregler.
AVISO: Num ambiente doméstico este produto pode causar interferência na radiorrecepção e, neste caso, pode ser necessário que o utente tome as medidas adequadas.
ADVERTENCIA: en un entorno doméstico, este producto puede causar radiointerferencias, en cuyo caso, puede requerirse del usuario que tome las medidas que sean convenientes al respecto.
VARNING: Denna produkt kan ge upphov till radiostörningar i hemmet, vilket kan tvinga användaren till att vidtaga erforderliga åtgärder.
A-2
AT-3714F and AT-3726 Installation Guide
This is a "CLASS 1 LED PRODUCT"
Das ist ein “LED Produkt der Klasse 1”
Dette er et “PRODUKT UNDER KLASSE 1 LED”
Dit is een “KLASSE 1 LED-PRODUKT”
Ce matériel est un “PRODUIT À DIODE ÉLECTROLUMINESCENTE DE CLASSE 1”
Tämä on “ENSIMMÄISEN LUOKAN VALODIODITUOTE”
Questo è un “PRODOTTO CON LED DI CLASSE 1”
Dette er et “KLASSE 1 LED PRODUKT”
Este é um “PRODUTO CLASSE 1 LED”
Este es un “PRODUCTO DE DIODO LUMINISCENTE (LED) CLASE 1”
Detta är en “KLASS 1 LYSDIODPRODUKT”
A-3
Translated Safety Information
WARNING: To prevent electric shock, do not remove cover. No user­serviceable parts inside. This unit contains hazardous voltages and should only be opened by a trained and qualified technician. To avoid the possibility of electric shock, disconnect electric pow er to the product befor e connecting or disconnecting the LAN cables.
ACHTUNG: GEFÄHRLICHE SPANNUNG
Das Gehäuse nicht öffnen. Das Gerät enthält keine vom Benutzer wartbaren Teile. Das Gerät steht unter Hochspannung und darf nur von qualifiziertem technischem Personal geöffnet werden. Vor Anschluß der LAN-Kabel, Gerät vom Netz trennen.
ELEKTRISKE FORHOLDSREGLER ADVARSEL: RISIKO FOR ELEKTRISK STØD
For at forebygge ELEKTRISK stød, undlad at åbne apparatet. Der er ingen indre dele, der kan repareres af brugeren. Denne enhed indeholder LIVSFARLIGE STRØMSPÆNDINGER og bør kun åbnes af en uddannet og kvalificeret tekniker. For at undgå risiko for ELEKTRISK STØD, afbrydes den elektriske strøm til produktet, før LAN-kablerne monteres eller afmonteres.
WAARSCHUWINGEN MET BETREKKING TOT ELEKTRICITEIT WAARSCHUWING: GEVAAR VOOR ELEKTRISCHE SCHOKKEN
Verwijder het deksel niet, teneinde ELEKTRISCHE schokken te voorkomen. Binnenin bevinden zich geen onderdelen die door de gebruiker onderhouden kunnen worden. Dit toestel staat onder GEVAARLIJKE SPANNING en mag alleen worden geopend door een daartoe opgeleide en bevoegde technicus. Om het gevaar op ELEKTRISCHE SCHOKKEN te vermijden, moet u het toestel van de stroombron ontkoppelen alvorens de LAN-kabels te koppelen of ontkoppelen.
INFORMATION SUR LES RISQUES ÉLECTRIQUES AVERTISSEMENT : DANGER D’ÉLECTROCUTION
Pour éviter toute ÉLECTROCUTION, ne pas ôter le revêtement protecteur du matériel. Ce matériel ne contient aucun élément réparable par l’utilisateur. Il comprend des TENSIONS DANGEREUSES et ne doit être ouvert que par un technicien dûment qualifié. Pour éviter tout risque d’ÉLECTROCUTION, débrancher le matériel avant de connecter ou de déconnecter les câbles LAN.
SÄHKÖÖN LIITTYVIÄ HUOMAUTUKSIA VAROITUS: SÄHKÖISKUVAARA
Estääksesi SÄHKÖISKUN älä poista kantta. Sisällä ei ole käyttäjän huollettavissa olevia osia. Tämä laite sisältää VAARALLISIA JÄNNITTEITÄ ja sen voi avata vain koulutettu ja pätevä teknikko. Välttääksesi SÄHKÖISKUN mahdollisuuden katkaise sähkövirta tuotteeseen ennen kuin liität tai irrotat paikallisverkon (LAN) kaapelit.
A-4
AT-3714F and AT-3726 Installation Guide
(Continued...)
AVVERTENZE ELETTRICHE ATTENZIONE: PERICOLO DI SCOSSE ELETTRICHE
Per evitare SCOSSE ELETTRICHE non asportare il coperchio. Le componenti interne non sono riparabili dall’utente. Questa unità ha TENSIONI PERICOLOSE e va aperta solamente da un tecnico specializzat o e qualificato. Per evitare ogni possibilità di SCOSSE ELETTRICHE, interrompere l’alimentazione del dispositivo prima di collegare o staccare i cavi LAN.
ELEKTRISITET ADVARSEL: FARE FOR ELEKTRISK SJOKK
For å unngå ELEKTRISK sjokk, må dekslet ikke tas av. Det finnes ingen deler som brukeren kan reparere på innsiden. Denne enheten inneholder FARLIGE SP ENNINGER, og må kun åpnes av en faglig kvalifisert tekniker. For å unngå ELEKTRISK SJOKK må den elektriske strømmen til produktet være avslått før LAN-kablene til- eller frakobles.
AVISOS SOBRE CARACTERÍSTICAS ELÉTRICAS ATENÇÃO: PERIGO DE CHOQUE ELÉTRICO
Para evitar CHOQUE ELÉTRICO, não retire a tampa. Não contém peças que possam ser consertadas pelo usuário. Este aparelho contém VOLTAGENS PERIGOSAS e só deve ser aberto por um técnico qualificado e treinado. P ara evitar a possibilidade de CHOQUE ELÉTRICO , desconect e o aparelho da fonte de energia elétrica antes de conectar e desconectar os cabos da LAN.
AVISOS ELECTRICOS ADVERTENCIA: PELIGRO DE ELECTROCHOQUE
Para evitar un ELECTROCHOQUE, no quite la tapa. No hay ningún componente en el interior al cual puede prestar servicio el usuario. Esta unidad contiene VOLTAJES PELIGROSOS y sólo deberá abrirla un técnico entrenado y calificado. Para evitar la posibilidad de ELECTROCHOQUE desconecte la corriente eléctrica que llega al producto antes de conectar o desconectar los cables LAN.
TILLKÄNNAGIVANDEN BETRÄFFANDE ELEKTRICITETSRISK: RISK FÖR ELEKTRISK STÖTFör att undvika ELEKTRISK stöt, ta ej av locket. Det finns inga delar inuti som behöver underhållas. Denna apparat är under HÖGSPÄNNING och får endast öppnas av en utbildad kvalificerad tekniker. För att undvika ELEKTRISK STÖT, koppla ifrån produktens strömanslutning innan LAN-kablarna ansluts eller kopplas ur.
A-5
Translated Safety Information
ELECTRICAL-TYPE CLASS 1 EQUIPMENT
This equipment must be earthed. Power plug must be connected to a properly wired earth ground socket outlet. An improperly wired socket outlet could place hazardous voltages on accessible metal parts.
GERÄTE DER KLASSE 1
DIESE GERÄTE MÜSSEN GEERDET SEIN. Der Netzstecker darf nur mit einer vorschriftsmäßig geerdeten Steckdose verbunden werden. Ein unvorschriftsmäßiger Anschluß kann die Metallteile des Gehauses unter gefährliche elektrische Spannungen setzen.
ELEKTRISK—KLASSE 1-UDSTYR
DETTE UDSTYR KRÆVER JORDFORBINDELSE. Stikket skal være forbundet med en korrekt installeret jordforbunden stikkontakt. En ukorrekt installeret stikkontakt kan sætt e livsfarlig spænding til tilgængelige metaldele.
ELEKTRISCHE TOESTELLEN VAN KLASSE 1
DIT TOESTEL MOET GEAARD WORDEN. De stekker moet aangesloten zijn op een juist geaarde contactdoos. Een onjuist geaarde contactdoos kan de metalen onderdelen waarmee de gebruiker eventueel in aanraking komt onder gevaarlijke spanning stellen.
ÉQUIPEMENT DE CLASSE 1 ÉLECTRIQUE
CE MATÉRIEL DOIT ÊTRE MIS A LA TERRE. La prise de courant doit être branchée dans une prise femelle correctement mise à la terre car des tensions dangereuses risqueraient d’atteindre les pièces métalliques accessibles à l’utilisateur.
SÄHKÖ —TYYPPILUOKAN 1 LAITTEET
TÄMÄ LAITE TÄYTYY MAADOITTAA. Pist oke täytyy liittää kunnollisesti maadoitettuun pistorasiaan. Virheellisesti johdotettu pistorasia voi altistaa metalliosat vaarallisille jännitteille.
ELETTRICITÀ—DISPOSITIVI DI CLASSE 1
QUESTO DISPOSITIVO DEVE AVERE LA MESSA A TERRA. La spina deve essere inserita in una presa di corrente specificament e dotata di messa a terra. Una presa non cablata in maniera corretta rischia di scaricare una tensione pericolosa su parti metalliche accessibili.
ELEKTRISK—TYPE 1- KLASSE UTSTYR
DETTE UTSTYRET MÅ JORDES. Strømkontakten må være tilkoplet en korrekt jordet kontakt. En kontakt som ikke er korrekt jordet kan føre til farlig spenninger i lett t ilgjengelige metalldeler.
A-6
AT-3714F and AT-3726 Installation Guide
(Continued...)
ELÉTRICO—EQUIPAMENTOS DO TIPO CLASSE 1
DEVE SER FEITA LIGAÇÃO DE FIO TERRA PARA ESTE EQUIPAMENTO. O plugue de alimentação deve ser conectado a uma tomada com adequada ligação de fio terra. Tomadas sem adequada ligação de fio terra podem transmitir voltagens perigosas a peças metálicas expostas.
ELECTRICO—EQUIPO DEL TIPO CLASE 1
ESTE EQUIPO TIENE QUE TENER CONEXION A TIERRA. El cable tiene que conectarse a un enchufe a tierra debidamente instalado. Un enchufe que no está correctamente instalado podría ocasionar tensiones peligrosas en las partes metálicas que están expuestas.
ELEKTRISKT—TYP KLASS 1 UTRUSTNING
DENNA UTRUSTNING MÅSTE VARA JORDAD. Nätkabeln måste vara ansluten till ett ordentligt jordat uttag. Ett felaktigt uttag kan göra att närliggande metalldelar utsätts för högspänning. Apparaten skall anslutas till jordat uttag, när den ansluts till ett nätverk.
A-7
Translated Safety Information
ELECTRICAL—CORD NOTICE
Use power cord, maximum 4.5 meters long, rated 6 amp minimum, 250V, made of HAR cordage molded IEC 320 connector on one end and on the other end a plug approved by the country of end use.
NETZKABEL
Das Netzkabel sollte eine maximale Länge von 4,5 Metern, einen Ne nnwert von mindestens 6 A und 250 V haben, aus HAR-Material hergestellt und mit einer gepreßten, IEC 320 entsprechenden, Anschlußverbindung an einem Ende, und am anderen Ende mit einem im Land des Endverbrauchers geprüften Stecker ausgestattet sein.
ELEKTRISK—LEDNING
Anvend ledning af maksimum 4,5 meters længde, med en kapacitet på minimum 6 amp., 250 v, bestående af en IEC 320 connector med indstøbt HAR ledning i den ene ende og et stik i den anden ende, der er godkendt af myndighederne i brugerlandet.
ELEKTRISCHE SNOEREN
Gebruik een elektrisch snoer, maximum 4,5 meter lang, berekend voor ten minste 6 ampåçère, 250 V, uit HAR vervaardigd, met aan het ene uiteinde een gevormd IEC 320 aansluitstuk en aan het andere uiteinde een stekker die goedgekeurd is door het land waar het toestel gebruikt zal worden.
INFORMATION SUR LE CORDON ÉLECTRIQUE
Utiliser un cordon secteur de 4.5 mètres de long maximum, calibré à 6 ampères minimum, 250V, fabriqué en câblage HAR avec connecteur IEC 32C moulé à une extrémité, et à l’autre extrémité, une prise de courant mâle répondant aux normes du pays d’utilisation.
SÄHKÖ—JOHTOON LIITTYVÄ HUOMAUTUS
Käytä seuraavanlaista virtajohtoa: maksimipituus 4,5 metriä, minimiteho 6 ampeeria, 250 V, valmistettu HAR-johdostosta, muovattu IEC 320 -liitin toisessa päässä ja käyttömaassa hyväksytty pistoke toisessa päässä.
ELETTRICITÀ—AVVERTENZA SUL CAVO
Usare un cavo della lunghezza massima di metri 4,5, con capacità minima di 6 A, 250 V, di filo HAR, dotato di connettore stampato IEC 320 ad un’estremità e di spina approvata dal paese di destinazione all’altra.
ELEKTRISK—MEDDELELSE OM LEDNINGER
Bruk en strømledning av maksimalt 4.5 m. i lengde, godkjent for minst a v 6 amp, 250V, fremstilt av HAR ledning IEC 320 koplingsstykke i den ene enden, og i den andre enden en plugg som er blitt godkjent i brukerlandet.
ELÉTRICO—AVISO SOBRE O CABO DE ALIMENTAÇÃO
Use cabo de alimentação com comprimento máximo de 4,5 metros, com uma capacidade indicada mínima de 6 amp e 250 V, fabricado de material para cabo HAR com conector moldado IEC 320 em uma extremidade e, na outra extremidade, um plugue aprovado para uso no país em questão.
A-8
AT-3714F and AT-3726 Installation Guide
(Continued...)
ELECTRICO—ADVERTENCIA SOBRE EL CABLE
Use un cable eléctrico con un máximo de 4,5 metros de largo, con una capacidad mínima de 6 amperios, 250 V, hecho de cable HAR, con el conector moldeado IEC 320 en un extremo y con un enchufe que está aprobado por el país de uso final en el otro.
ELEKTRISKT—ANMÄRKNING BETRÄFFANDE KABELN
Använd en kabel med maximum längd 4,5 meter och minimum 6 amp nominal, 250V, av HAR kabelfabrikat med ett specialutformat IEC 320­kontaktdon i ena änden och i den andra en plugg som godkänts i landet där produkten används.
A-9
Translated Safety Information
CAUTION: POWER CORD IS USED AS A DISCONNECTION DEVICE. TO DE-ENERGISE EQUIPMENT disconnect the power cord.
VORSICHT: DAS NETZKABEL DIENT ZUM TRENNEN DER STROMVERSORGUNG. ZUR TRENNUNG VOM NETZ, KABEL AUS DER STECKDOSE ZIEHEN.
ADVARSEL: DEN STRØMFØRENDE LEDNING BRUGES TIL AT AFBRYDE STRØMMEN. SKAL STRØMMEN TIL APPARATET AFBRYDES, tages ledningen ud af stikket.
WAARSCHUWING: HET TOESTEL WORDT UITGESCHAKELD DOOR DE STROOMKABEL TE ONTKOPPELEN.OM HET TOESTEL STROOMLOOS TE MAKEN: de stroomkabel ontkoppelen.
ATTENTION : LE CORDON D’ALIMENTATION SERT DE MISE HORS CIRCUIT. POUR COUPER L’ALIMENTATION DU MATÉRIEL, débrancher le cordon.
HUOMAUTUS: VIRTAJOHTOA KÄYTETÄÄN VIRRANKATKAISULAITTEENA. VIRTA KATKAISTAAN irrottamalla virtajohto.
ATTENZIONE: IL CAVO DI ALIMENTAZIONE È USATO COME DISPOSITIVO DI DISATTIVAZIONE. PER TOGLIERE LA CORRENTE AL DISPOSITIVO staccare il cavo di alimentazione.
FORSIKTIG: STRØMLEDNINGEN BRUKES TIL Å FRAKOBLE UTSTYRET. FOR Å DEAKTIVISERE UTSTYRET, må strømforsyningen kobles fra.
CUIDADO: O CABO DE ALIMENTAÇÃO É UTILIZADO COMO UM DISPOSITIVO DE DESCONEXÃO. PARA DESELETRIFICAR O EQUIPAMENTO, desconecte o cabo de ALIMENTAÇÃO.
ATENCION: EL CABLE DE ALIMENTACION SE USA COMO UN DISPOSITIVO DE DESCONEXION. PARA DESACTIVAR EL EQUIPO, desconecte el cable de alimentación.
VARNING: NÄTKABELN ANVÄNDS SOM STRÖMBRYTARE FÖR ATT KOPPLA FRÅN STRÖMMEN, dra ur nätkabeln.
A-10
AT-3714F and AT-3726 Installation Guide
CAUTION: Air vents must not be blocked and must have free access to the room ambient air for cooling.
VORSICHT: Die Entlüftungsöffnungen dürfen nicht versperrt sein und müssen zum Kühlen freien Zugang zur Raumluft haben.
ADVARSEL: Ventilationsåbninger må ikke blokeres og skal have fri adgang til den omgivende luft i rummet for afkøling.
OPGELET: De ventilatiegaten mogen niet worden gesperd en moeten de omgevingslucht ongehinderd toelaten voor afkoeling.
ATTENTION : Ne pas bloquer les fentes d’aération, ceci empêcherait l’air ambiant de circuler librement pour le refroidissement.
HUOMAUTUS: Ilmavaihtoreikiä ei pidä tukkia ja niillä täytyy olla vapaa yhteys ympäröivään huoneilmaan, jotta ilmanvaihto tapahtuisi.
ATTENZIONE: le prese d’aria non vanno ostruite e devono consentire il libero ricircolo dell’aria ambiente per il raffreddamento.
FORSIKTIG: Lufteventilene må ikke blokkeres, og må ha fri tilgang til luft med romtemperatur for avkjøling.
CUIDADO: As aberturas de ventilação não devem ser bloqueadas e devem ter acesso livre ao ar ambiente para arrefecimento adequado do aparelho.
ATENCION: Las aberturas para ventilación no deberán bloquearse y deberán tener acceso libre al aire ambiental de la sala para su enfriamiento.
VARNING: Luftventilerna får ej blockeras och måste ha fri tillgång till omgivande rumsluft för avsvalning.
A-11
Translated Safety Information
LIGHTNING DANGER DANGER: DO NOT WORK on equipment or CABLES during periods of
LIGHTNING ACTIVITY.
GEFAHR DURCH BLITZSCHLAG GEFAHR: Keine Arbeiten am Gerät oder an den Kabeln während eines
Gewitters ausführen.
FARE UNDER UVEJR FARE: UNDLAD at arbejde på udstyr eller KABLER i perioder med
LYNAKTIVITET.
GEVAAR VOOR BLIKSEMINSLAG GEVAAR: NIET aan toestellen of KABELS WERKEN bij BLIKSEM.\
DANGER DE FOUDRE DANGER : NE PAS MANIER le matériel ou les CÂBLES lors d’activité
orageuse.
SALAMANISKUVAARA HENGENVAARA: ÄLÄ TYÖSKENTELE laitteiden tai KAAPELEIDEN
KANSSA SALAMOINNIN AIKANA.
PERICOLO DI FULMINI PERICOLO: NON LAVORARE sul dispositivo o sui CAVI durante
PRECIPITAZIONI TEMPORALESCHE.
FARE FOR LYNNEDSLAG FARE: ARBEID IKKE på utstyr eller KABLER i TORDENVÆR.
PERIGO DE CHOQUE CAUSADO POR RAIO PERIGO: NÃO TRABALHE no equipamento ou nos CABOS durante
períodos suscetíveis a QUEDAS DE RAIO.
PELIGRO DE RAYOS PELIGRO: NO REALICE NINGUN TIPO DE TRABAJO O CONEXION
en los equipos o en LOS CABLES durante TORMENTAS ELECTRICAS.
FARA FÖR BLIXTNEDSLAG FARA: ARBETA EJ på utrustningen eller kablarna vid ÅSKVÄDER.
A-12
AT-3714F and AT-3726 Installation Guide
OPERATING TEMPERATURE
This product is designed for a maximum ambient temperature of 40 degrees C.
BETRIEBSTEMPERATUR
Dieses Produkt wurde für den Betrieb in einer Umgebungstemperatur von nicht mehr als 40° C entworfen.
BETJENINGSTEMPERATUR
Dette apparat er konstrueret til en omgivende temperatur på maksimum 40 grader C.
BEDRIJFSTEMPERATUUR
De omgevingstemperatuur voor dit produkt mag niet meer bedragen dan 40 graden Celsius.
TEMPÉRATURE DE FONCTIONNEMENT
Ce matériel est capable de tolérer une température ambiante maximum de 40 degrés Celsius.
KÄYTTÖLÄMPÖTILA
Tämä tuote on suunniteltu ympäröivän ilman maksimilämpötilalle 40°C.
TEMPERATURA DI FUNZIONAMENTO
Questo prodotto è concepito per una temperatura ambientale massima di 40 gradi centigradi.
DRIFTSTEMPERATUR
Dette produktet er konstruert for bruk i maksimum romtemperatur på 40 grader celsius.
TEMPERATURA DE FUNCIONAMENTO
Este produto foi projetado para uma temperatura ambiente máxima de 40graus centígrados.
TEMPERATURA REQUERIDA PARA LA OPERACIÓN
Este producto está diseñado para una temperatura ambiental máxima de 40 grados C.
DRIFTSTEMPERATUR
Denna produkt är konstruerad för rumstemperatur ej överstigande 40 grader Celsius.
A-13
Translated Safety Information
ALL COUNTRIES: Install product in accordance with local and National Electrical Codes.
ALLE LÄNDER: Installation muß örtlichen und nationalen elektrischen Vorschriften entsprechen.
ALLE LANDE: Installation af produktet skal ske i overensstemmelse med lokal og national lovgivning for elektriske installationer.
ALLE LANDEN: het toestel installeren overeenkomstig de lokale en nationale elektrische voorschriften.
POUR TOUS PAYS : Installer le matériel conformément aux normes électriques nationales et locales.
KAIKKI MAAT: Asenna tuote paikallisten ja kansallisten sähköturvallisuusmääräysten mukaisesti.
TUTTI I P AESI: installar e il prodott o in conformità delle vigenti normative elettriche nazionali.
ALLE LAND: Produktet må installeres i samsvar med de lokale og nasjonale elektriske koder.
TODOS OS PAÍSES: Instale o produto de acordo com as normas nacionais e locais para instalações elétricas.
PARA TODOS LOS PAÍSES: Monte el producto de acuerdo con los Códigos Eléctricos locales y nacionales.
ALLA LÄNDER: Installera produkten i enlighet med lokala och statliga bestämmelser för elektrisk utrustning.
A-14
AT-3714F and AT-3726 Installation Guide
ELECTRICAL—A UT O VOL TAGE ADJUSTMENT This product will automatically adjust to any voltage between the ranges shown on the label.
AUTOMATISCHE SPANNUNGSEINSTELLUNG
Dieses Gerät stellt sich automatisch auf die auf dem Etikett aufgeführten Spannungswerte ein.
ELEKTRISK—AUTOMATISK SPÆNDINGSREGULERING
Dette apparat vil automatisk tilpasse sig enhver spænding indenfor de værdier, der er angivet på etiketten.
ELEKTRISCH: AUTOMATISCHE AANP ASSING VAN DE SPANNING
Dit toestel past zich automatisch aan elke spanning aan, tussen de op het label vermelde waarden.
RÉGLAGE DE TENSION AUTOMATIQUE ÉLECTRIQUE
Ce matériel peut s’ajuster automatiquement sur n’importe quelle tension comprise dans la plage indiquée sur l’étiquette.
SÄHKÖ—AUTOMAATTINEN JÄNNITTEENSÄÄTÖ
Tämä tuote säätää automaattisesti mihin tahansa jännitteeseen ohjetarrassa annettujen arvojen välillä.
ELETTRICITÀ—REGOLAZIONE AUTOMATICA DELLA TENSIONE
Questo prodotto regolerà automaticamente la tensione ad un valore compreso nella gamma indicata sull’etichetta.
ELEKTRISK—AUTO SPENNINGSTILPASNING
Dette produktet vil automatisk bli tilpasset hvilken som helst strømspenning i de områdene som vises på etiketten.
ELÉTRICO—AJUSTE A UTOMÁTICO DE V OLTAGEM
Este produto ajustar-se-á automaticamente a qualquer voltagem que esteja dentro dos limites indicados no rótulo.
ELECTRICO—AUTO-AJUSTE DE TENSION
Este producto se ajustará automáticamente a cualquier tensión entre los valores máximos y mínimos indicados en la etiqueta.
ELEKTRISKT—AUTOMATISK SPÄNNINGSJUSTERING
Denna produkt justeras automatiskt till alla spänningar inom omfånget som indikeras på produktens märkning.
A-15
Appendix B
Technical Specifications
Table B-1 lists the technical specifications for the AT-3714F, AT-3726 Switch.
Table B-1 AT-3714F, AT-3726 Technical Specifications
Physical Specifications
Dimensions (H x W x D) Weight
Base Unit (fully loaded) 2.593 in. x 17.33 in. x 12.60 in.
(6.59 cm x44.02 cm x 32.00 cm)
Required ventilation on all sides 7.5 in. (191 mm)
Environmental Specifications
Operating temperature 32° to 104° F (0° C to 40° C) Storage temperature -4° to 15° F (-20° C to 60° C) Operating humidity 5% to 95% non-condensing Operating altitude range up to 9,843 ft. (3,000 m)
Power Specifications
Maximum power consumption 100 W AC input voltage 100-120/200-240VAC~ +10%-6% (autoranging) Frequency 50/60 Hz +/-3 cycles of nominal input frequency
Safety and Electromagnetic Emissions Certifications
Safety: UL 1950 CSA 22.2 No. 950 EN 60950 (TUV) EMI AT-3726 FCC Class A EN55022 Class A VCCI Class A AT-3714F FCC Class B EN55022 Class B VCCI Class B
10 lbs., 13 oz. (4.9 kg)
Immunity: EN50082-1 Quality and Reliability:
MTBF > 50,000 hrs.
MTTR < 1/2 hr. DOA < 1%
B-1
Technical Specifications
Table B-2 RJ45 Pin Assignments for A T-3714F (Mirror port) and AT-3726
Pin Number Function
1 RD+ 2 RD­3 TD+ 4 Unused 5 Unused 6 TD­7 Unused 8 Unused

Media Dependent Adapter Cabling Distances

Table B-3 lists the maximum cable distances for the AT-3714F, AT-3726 Switch Media Dependent Adapter (MDA).
Table B-3 MDA Maximum Cable Distances
MDA Ethernet Type Maximum Distance
AT-3701F/SC SC (100Base) 1.25 miles (2 km for full duplex,
412 M for half duplex) 50/125 and 62.5/125 micron multimode fiber cable
AT-3701 RJ45 (10/100Base) 330 ft. (100m), twisted pair
Category 5 UTP
B-2
Index
Numerics
100Base-FX port 1-1 100Base-TX port 1-1
A
Activity LED 2-6 AT-3701 MDA 1-5, 2-9 AT-3701F/SC MDA 1-5, 2-9 auto-negotiation 1-2
B
bandwidth capability 1-1, 1-2
C
clear-channel architecture 1-2 conventions, document Preface-ii
D
DB9 straight-through cable 2-7 diagnostics 3-5 disabled port 3-4
E
External Address Lookup Engine 1-3
F
FLT LED 2-6 fragment-free cut-through modes 1-2
L
LEDs 2-6, 3-3 Link OK LED 2-6
M
MDA LEDs 2-11 mirror port 1-4 MS-Windows VTERM 1-5
O
Omega 1-3, 3-1, 3-4, 3-5 out-of-band management 1-5
P
PWR LED 2-6
R
redundant backbone connections 1-3 reset button 1-5, 3-1, 3-5 RS232 connector 1-5, 2-7, 3-5
S
shared memory architecture 1-2 SNMP 3-5 SNMP Management Information Base 1-3 SNMP trap message 3-3 Spanning Tree Protocol 1-3 standalone switch 4-1 store-and-forward mode 1-2 switch default settings 2-8
T
TCP/IP 3-3 Telnet 3-5 terminal settings 2-7
W
Worst Case Path Delay Value 3-2
Index-1
Loading...