Fast Ethernet
®
Switch
AT-8350GB
Installation
Guide
PN 613-50307-00 Rev B
Copyright 2002 Allied Telesyn, Inc.
960 Stewart Drive Suite B, Sunnyvale, CA 94085 USA
All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesyn, Inc.
All other product names, company names, logos or other designations mentioned herein are trademarks or registered trademarks
of their respective owners.
Allied Telesyn, 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 Telesyn, 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 Telesyn, Inc. has been advised of, known, or
should have known, the possibility of such damages.
Electrical Safety and Emission
Statement
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 FCC Class A, EN55022 Class A, CISPR22 Class A (VCCI), AS/NZS3548 (C-
Warning: In a domestic environment this product may cause radio interference in which case the user may be required to take
adequate measures.
Immunity EN55024
Electrical Safety UL 1950 (UL/cUL)), EN60950
Laser EN60825
Important: Appendix C contains translated safety statements for installing this equipment. When you see the
C for the translated safety statement in your language.
Wichtig: Anhang C enthält übersetzte Sicherheitshinweise für die Installation dieses Geräts. Wenn Sie
Anhang C den übersetzten Sicherheitshinweis in Ihrer Sprache nach.
Vigtigt: Tillæg C indeholder oversatte sikkerhedsadvarsler, der vedrører installation af dette udstyr. Når De ser symbolet
De slå op i tillæg C og finde de oversatte sikkerhedsadvarsler i Deres eget sprog.
Belangrijk: Appendix C bevat vertaalde veiligheidsopmerkingen voor het installeren van deze apparatuur. Wanneer u de
raadpleeg Appendix C voor vertaalde veiligheidsinstructies in uw taal.
Important : L'annexe C contient les instructions de sécurité relatives à l'installation de cet équipement. Lorsque vous voyez le
symbole
Tärkeää: Liite C sisältää tämän laitteen asentamiseen liittyvät käännetyt turvaohjeet. Kun näet
turvaohjetta liitteestä C.
Importante: l’Appendice C contiene avvisi di sicurezza tradotti per l’installazione di questa apparecchiatura. Il simbolo
di consultare l’Appendice C per l’avviso di sicurezza nella propria lingua.
Viktig: Tillegg C inneholder oversatt sikkerhetsinformasjon for installering av dette utstyret. Når du ser
for å finne den oversatte sikkerhetsinformasjonen på ønsket språk.
Importante: O Anexo C contém advertências de segurança traduzidas para instalar este equipamento. Quando vir o símbolo
leia a advertência de segurança traduzida no seu idioma no Anexo C.
Importante: El Apéndice C contiene mensajes de seguridad traducidos para la instalación de este equipo. Cuando vea el símbolo
, reportez-vous à l'annexe C pour consulter la traduction de ces instructions dans votre langue.
2
TICK), EN61000-3-2, EN61000-3-3
3
5
1
4
, go to Appendix
sehen, schlagen Sie in
, skal
ziet,
-symbolin, katso käännettyä
, indica
, åpner du til Tillegg C
,
, vaya al Apéndice C para ver el mensaje de seguridad traducido a su idioma.
Obs! Bilaga C innehåller översatta säkerhetsmeddelanden avseende installationen av denna utrustning. När du ser
till Bilaga C för att läsa det översatta säkerhetsmeddelandet på ditt språk.
, skall du gå
3
4
Table of Contents
Preface ......................................................................................................................................................................................................................9
How This Guide is Organized ............................................................................................................................................................................. 9
Document Conventions ....................................................................................................................................................................................10
Where to Find Web-based Guides .................................................................................................................................................................11
Contacting Allied Telesyn Technical Support ............................................................................................................................................12
Online Support ............................................................................................................................................................................................. 12
Telephone Support..................................................................................................................................................................................... 12
Management Software Updates ....................................................................................................................................................................13
For Sales or Corporate Information ...............................................................................................................................................................14
Chapter 1
Product Description .........................................................................................................................................................................................15
Summary of Features ..........................................................................................................................................................................................15
Location of Components ...................................................................................................................................................................................16
Hardware Features ..............................................................................................................................................................................................17
Twisted Pair Ports ........................................................................................................................................................................................ 17
Gigabit Interface Converter Slots .......................................................................................................................................................... 21
Stacking Ports ............................................................................................................................................................................................... 22
Expansion Slot .............................................................................................................................................................................................. 23
System LEDs .................................................................................................................................................................................................. 24
10/100 Mbps Port LEDs ............................................................................................................................................................................. 25
Gigabit Connector LEDs ............................................................................................................................................................................ 27
Expansion Module LEDs............................................................................................................................................................................ 28
RS-232 Terminal Port.................................................................................................................................................................................. 29
AC Power Connector.................................................................................................................................................................................. 30
Redundant Power Supply Units............................................................................................................................................................. 31
Software Features ................................................................................................................................................................................................35
AT-S41 Management Software .............................................................................................................................................................. 35
Spanning Tree Protocol (STP) ................................................................................................................................................................. 38
Port-based and Tagged VLANs............................................................................................................................................................... 39
Quality of Service (QoS)............................................................................................................................................................................. 39
IGMP Snooping ............................................................................................................................................................................................ 40
Dynamic Host Configuration Protocol (DHCP) ................................................................................................................................. 41
Port Monitoring............................................................................................................................................................................................ 41
Port Trunking ................................................................................................................................................................................................ 41
Port Security .................................................................................................................................................................................................. 44
A Few Basics to Ethernet Switching ..............................................................................................................................................................45
MAC Address Table..................................................................................................................................................................................... 45
5
Table of Contents
Duplex Mode................................................................................................................................................................................................ 46
Store and Forward...................................................................................................................................................................................... 46
Backpressure and Flow Control............................................................................................................................................................. 46
Network Topologies ........................................................................................................................................................................................... 48
Power Workgroup Topology.................................................................................................................................................................. 48
Collapsed Backbone - Hub Topology.................................................................................................................................................. 49
Switch Stacking Topology....................................................................................................................................................................... 50
Chapter 2
Installation ........................................................................................................................................................................................................... 51
Installation Safety Precautions ....................................................................................................................................................................... 52
Selecting a Site for the Switch ........................................................................................................................................................................ 54
Required Cables ................................................................................................................................................................................................... 55
Unpacking the Switch ........................................................................................................................................................................................ 56
Installing the Switch on a Desktop ............................................................................................................................................................... 57
Installing the Switch in a Rack ........................................................................................................................................................................ 58
Installing an Optional GBIC Module ............................................................................................................................................................. 59
Installing an Expansion Module ..................................................................................................................................................................... 62
Creating a Switch Stack ..................................................................................................................................................................................... 65
Cabling the Switch .............................................................................................................................................................................................. 67
Powering the Switch .......................................................................................................................................................................................... 70
Installing the AT-RPS2001 Unit.............................................................................................................................................................. 71
Installing the AT-RPS2004 Unit.............................................................................................................................................................. 74
Starting a Local Management Session ......................................................................................................................................................... 78
Warranty Registration ........................................................................................................................................................................................ 81
Chapter 3
Troubleshooting ................................................................................................................................................................................................ 83
Appendix A
Technical Specifications ................................................................................................................................................................................ 89
Physical Specifications ....................................................................................................................................................................................... 89
Environmental Specifications ......................................................................................................................................................................... 89
Power Specifications .......................................................................................................................................................................................... 89
Safety and Electromagnetic Emissions Certifications ............................................................................................................................ 90
Standards ............................................................................................................................................................................................................... 90
SNMP Support ...................................................................................................................................................................................................... 90
Appendix B
Default Switch Settings .................................................................................................................................................................................. 91
Appendix C
Translated Electrical Safety and Emission Information ................................................................................................................. 93
6
List of Figures
Figure 1: AT-8350GB Front Panel ...................................................................................................................................................................16
Figure 2: AT-8350GB Back Panel .....................................................................................................................................................................16
Figure 3: Twisted Pair Ports ..............................................................................................................................................................................17
Figure 4: RJ-45 Connector and Port Pin Layout .........................................................................................................................................19
Figure 5: GBIC Slots ..............................................................................................................................................................................................21
Figure 6: Example of a GBIC Module .............................................................................................................................................................21
Figure 7: Stacking Ports .....................................................................................................................................................................................22
Figure 8: Expansion Slot ....................................................................................................................................................................................23
Figure 9: System LEDs .........................................................................................................................................................................................24
Figure 10: Port LEDs ............................................................................................................................................................................................25
Figure 11: Port Mode LEDs and Button ........................................................................................................................................................25
Figure 12: Gigabit Connector LEDs ................................................................................................................................................................27
Figure 13: Expansion Module Port LEDs ......................................................................................................................................................28
Figure 14: RS-232 Terminal Port .....................................................................................................................................................................29
Figure 15: AC Power Connector ......................................................................................................................................................................30
Figure 16: Redundant Power Supply Connector ......................................................................................................................................31
Figure 17: AT-RPS2001 Redundant Power Supply Unit .........................................................................................................................31
Figure 18: AT-RPS2004 Front & Back Panels ...............................................................................................................................................32
Figure 19: AT-RPS2004 Power Supply LEDs ................................................................................................................................................32
Figure 20: 14-pin Molex Connector Port Pin Layout ...............................................................................................................................34
Figure 21: Local Management .........................................................................................................................................................................36
Figure 22: AT-S41 Main Menu - Local Management Session ...............................................................................................................36
Figure 23: URL Field of a Web Browser .........................................................................................................................................................37
Figure 24: Web Browser Management Home Page .................................................................................................................................37
Figure 25: Port Trunk Example ........................................................................................................................................................................43
Figure 26: Power Workgroup Topology .......................................................................................................................................................48
Figure 27: Collapsed Backbone - Hub Topology ......................................................................................................................................49
Figure 28: Switch Stacking Topology ............................................................................................................................................................50
Figure 29: Attaching Rubber Feet to Switch ..............................................................................................................................................57
Figure 30: Attaching a Rack-mounting Bracket ........................................................................................................................................58
Figure 31: Installing the Switch in a Rack ....................................................................................................................................................58
Figure 32: GBIC Module .....................................................................................................................................................................................59
Figure 33: Optical Bore & Ferrule of GBIC Module ...................................................................................................................................60
Figure 34: Installing a GBIC Module ...............................................................................................................................................................61
Figure 35: Removing the Expansion Slot Faceplate ................................................................................................................................63
Figure 36: Installing a Module .........................................................................................................................................................................63
Figure 37: Stack of Three Switches ................................................................................................................................................................66
7
List of Figures
Figure 38: A Stack of Four Switches .............................................................................................................................................................. 66
Figure 39: Connecting the Twisted Pair Data Cables ............................................................................................................................. 67
Figure 40: Removing the Dust Cover from a GBIC Module .................................................................................................................. 68
Figure 41: Attaching a Fiber Optic Cable to a GBIC Module ................................................................................................................ 69
Figure 42: FAULT LED ......................................................................................................................................................................................... 70
Figure 43: AT-RPS2001 Redundant Power Supply .................................................................................................................................. 71
Figure 44: Connecting the AT-RPS2001 Unit to the Switch ................................................................................................................. 72
Figure 45: Installing the AT-RPS2001 Unit onto the Switch ................................................................................................................. 72
Figure 46: Connecting the AT-RPS2001 Unit ............................................................................................................................................. 73
Figure 47: Attaching a Rack-mounting Bracket ........................................................................................................................................ 75
Figure 48: Installing the Power Supply Unit in a Rack ............................................................................................................................ 75
Figure 49: Connecting the AC-power to the AT-RPS2004 Unit ........................................................................................................... 76
Figure 50: Connecting the RPS connector ................................................................................................................................................. 76
Figure 51: Connecting to the AT-RPS2004 unit ........................................................................................................................................ 77
Figure 52: Connecting the Null Modem Management Cable to the RS-232 Terminal Port ..................................................... 78
Figure 53: AT-S41 Login Prompt - Local Management Session .......................................................................................................... 79
Figure 54: AT-S41 Main Menu - Local Management Session ............................................................................................................... 80
8
Preface
This guide contains instructions on how to install the stackable
AT-8350GB Fast Ethernet switch.
How This Guide is Organized
This manual contains the following chapters and appendices:
Chapter 1, Hardware Description, describes the features and
components of the switch.
Chapter 2, Installation, contains the installation instructions.
Chapter 3, Troubleshooting, provides information on how to resolve
common problems that might occur with the switch.
Appendix A, Technical Specifications, contains the switch’s technical
specifications.
Appendix B, Switch Default Settings, lists the factory default settings.
Appendix C, Translated Electrical Safety and Emission Information,
contains translations of the warnings and cautions in the manual.
9
Preface
Document Conventions
This document uses the following conventions to highlight important
information.
Note
Notes provide additional information.
Warning
Warnings inform you that performing or omitting a specific action
may result in bodily injury.
Caution
Cautions inform you that performing or omitting a specific action
may result in equipment damage or loss of data.
10
Where to Find Web-based Guides
The Allied Telesyn web site at www.alliedtelesyn.com contains PDF files
of the Installation and User Guides for all Allied Telesyn products. The
documents can be viewed on-line or downloaded onto a local
workstation or server.
Once you have installed the switch, refer to following manual for
instructions on how to manage and configure the unit. The manual is
available from the Allied Telesyn web site:
AT-S41 Management Software User’s Guide for the
AT-8350GB Switch
AT-8350GB Installation Guide
11
Preface
Contacting Allied Telesyn Technical Support
You can contact Allied Telesyn technical support online or by telephone.
Online Support You can request technical support online by accessing the Knowledge
Base from our web site at http://kb.alliedtelesyn.com. You can use the
Knowledge Base to submit questions to our technical support staff and
review answers to previously asked questions.
Telephone
Support
For Technical Support by telephone, contact Allied Telesyn at one of the
following locations:
Americas
United States, Canada, Mexico, Central
America, South America
Tel: 1 (800) 428-4835
Asia
Singapore, Taiwan, Thailand, Malaysia,
Indonesia, Korea, Philippines, China,
India, Hong Kong
Tel: (+65) 3815-612
Australia
Australia, New Zealand
Tel: 1 (800) 000-880
France
France, Belgium, Luxembourg, The
Netherlands, Middle East, Africa
Tel: (+33) 1-60-92-15-25
Germany
Germany, Switzerland, Austria, Eastern
Europe
Tel: (+49) 30-435-900-126
Italy
Italy, Spain, Portugal, Greece, Turkey, Israel
Tel: (+39) 02-41-30-41
Japan
Tel: (+81) 3-3443-5640
United Kingdom
United Kingdom, Denmark, Norway,
Sweden, Finland, Iceland
Tel: (+44) 1-235-442560
12
Management Software Updates
Allied Telesyn periodically updates the management software programs
for our managed products. You can download new versions of our
management software from our web site at www.alliedtelesyn.com or
our FTP server at ftp.alliedtelesyn.com. To use the FTP server, enter
‘anonymous’ for the user name when you log in and your e-mail address
for the password.
AT-8350GB Installation Guide
13
Preface
For Sales or Corporate Information
You can contact Allied Telesyn for sales or corporate information at the
location listed below:
Allied Telesyn, Inc.
19800 North Creek Parkway, Suite 200
Bothell, WA 98011
Tel: 1 (425) 487-8880
Fax: 1 (425) 489-9191
14
Chapter 1
Product Description
The AT-8350GB is a stackable Layer 2 Fast Ethernet switch. It offers a
wide range of features and capabilities, all designed to simplify the task
of creating and maintaining a Fast Ethernet network.
Summary of Features
❑ 48 10/100Base-TX ports with RJ-45 connectors
❑ Two 10/100/1000Base-T ports with RJ-45 connectors
❑ Auto-MDI/MDI-X on all twisted pair ports
❑ Auto-Negotiation for speed and duplex mode
(IEEE 803.3u-compliant)
❑ Two slots for Gigabit Interface Converter modules
❑ One expansion slot
❑ Two stacking ports
❑ Port trunking, port monitoring, and port security
❑ Dynamic Host Configuration Protocol
❑ Internet Group Management Protocol snooping
❑ AT-S41 management software
❑ Port-based and Tagged VLANs (IEEE 802.1Q-compliant)
❑ Spanning tree protocol (IEEE 802.1d-compliant)
❑ Quality of Service (IEEE 802.1p-compliant)
15
Product Description
Location of Components
Figure 1 illustrates the front panel of the AT-8350GB Fast Ethernet
Switch.
1 1
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647
LINK
RPS
PWR
100
FAULT
FULL
MODE
10/100Base-TX Ports
Port LEDs
Slots
GBIC
S
M
S
M
48
49
50
System LEDs
Expansion Slot
Figure 1 AT-8350GB Front Panel
Figure 2 illustrates the back panel.
STACK IN STACK OUT
RS232
Terminal Port
RS232
Terminal Port
Figure 2 AT-8350GB Back Panel
10/100/1000Base-T Ports
PWR
RPS
100-240 VAC
RPS Power
AC PowerStacking Ports
Connector Connector
16
Hardware Features
The following sections describe these hardware features of the
AT-8350GB Fast Ethernet switch:
AT-8350GB Installation Guide
❑ 10/100Base-TX and 10/100/1000Base-T Ports
❑ Gigabit Interface Converter (GBIC) Slots
❑ Stacking Ports
❑ Expansion Slot
❑ System LEDs
❑ Port LEDs
❑ Gigabit Connector LEDs
❑ RS-232 Terminal Port
❑ AC Power Connector
❑ AT-RPS2001 Redundant Power Supply Unit
❑ AT-RPS2004 Redundant Power Supply Unit
Twisted Pair
Ports
10/100/1000Base-T Ports
1 1
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647
10/100Base-TX Ports
Figure 3 Twisted Pair Ports
The AT-8350GB Fast Ethernet switch features 48 10/100 Mbps twisted
pair ports and two 10/100/1000 Mbps twisted pair ports. The features of
the twisted pair ports are described below.
S
M
S
M
48
Type of Connector
All of the twisted pair ports feature 8-pin RJ-45 connectors. (For the port
pinout details, refer to RJ-45 Port Pinouts on page 19.)
17
Product Description
Speed
The 10/100Base-TX ports are capable of 10 megabits per second (Mbps)
or 100 Mbps speeds. The 10/100/1000Base-TX ports are capable of 10
Mbps, 100 Mbps, or 1000 Mbps speeds. You can set the port speed
manually or, since the ports are IEEE 802.3u Auto-Negotiation compliant,
you can allow the switch to set each port’s speed automatically. 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.
Note
Auto-Negotiation is activated as the default on all of the ports on
the switch. To deactivate Auto-Negotiation and set the speeds
manually, refer to the AT-S41 Management Software User’s
Guide for the AT-8350 Switch.
Maximum Distance
Each twisted pair port has a maximum operating distance of 100 m (328
ft).
Type of Cabling
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.
Auto-MDI
All of the twisted pair ports on the switch are auto-MDI and IEEE
802.3ab-compatible. They automatically configure themselves as either
MDI or MDI-X. This feature allows you to use either straight-through or
cross-over twisted pair cables to connect devices to the ports.
18
AT-8350GB Installation Guide
Duplex Mode
Each twisted pair port on the switch can operate in either half- or fullduplex mode. The twisted pair ports are IEEE 802.3u-compliant and will
Auto-Negotiate the duplex mode setting. If the end node connected to a
twisted pair port on the switch is capable of full-duplex operation, the
switch sets the port to full-duplex. If the end node is capable of only halfduplex, the port is set to half-duplex.
If desired, Auto-Negotiation on one or all of the twisted pair ports can be
disabled so that you can set the duplex mode manually through the
switch’s management software.
RJ-45 Port Pinouts
Figure 4 illustrates the pin layout to an RJ-45 connector and port.
8
1
8
1
Figure 4 RJ-45 Connector and Port Pin Layout
Table 1 lists the RJ-45 pin signals when a twisted pair port is operating in
the MDI configuration.
Table 1 MDI Pin Signals (10/100 Mbps)
Pin Signal
1TX+
2TX-
3RX+
6RX-
19
Product Description
Table 2 lists the RJ-45 port pin signals when a twisted pair port is
operating in the MDI-X configuration.
Table 2 MDI-X Pin Signals (10/100 Mbps)
Pin Signal
1RX+
2RX-
3TX+
6TX-
Table 3 lists the RJ-45 connector pins and their signals when a
10/100/1000 Mbps twisted pair port is operating at 1000 Mbps.
Table 3 1000 Mbps Pin Signals
Pin Pair Signal
1 1 TX and RX+
2 1 TX and RX-
3 2 TX and RX+
4 2 TX and RX+
5 3 TX and RX-
6 3 TX and RX-
7 4 TX and RX+
8 4 TX and RX-
20
Gigabit
Interface
Converter Slots
AT-8350GB Installation Guide
S
M
49
S
M
50
Figure 5 GBIC Slots
The AT-8350GB Fast Ethernet switch has two GBIC slots on the front
panel, which correspond to ports 49 and 50. Each slot can accommodate
one optional GBIC module.
A GBIC module is a gigabit (1000Base) transceiver. GBIC modules can be
used to extend the distance of your network, build a high-speed
backbone network, or connect additional nodes to the network, such as
high-speed servers. Figure 6 shows an example of a fiber optic GBIC
module.
Figure 6 Example of a GBIC Module
Note
Ports 49 and 50 can each support only one medium type (i.e.,
twisted pair or GBIC) at a time. For example, if you install a GBIC for
Port 49, you cannot use the corresponding twisted pair port.
In order to use Ports 49 or 50 with a GBIC module, you must change
the port setting in the management software to GBIC instead of
twisted pair. For instructions, refer to the AT-S41 Management
Software User’s Guide for the AT-8350GB Switch.
Contact your Allied Telesyn sales representative for a list of GBIC
modules for the AT-8350GB switch.
21
Product Description
Stacking Ports
STACK IN STACK OUT
Stacking Ports
RS232
Figure 7 Stacking Ports
There are two stacking ports on the back of the switch (Figure 7). The
ports are used to connect AT-8350GB switches to form a logical switch. A
logical switch consists of two or more individual switches that function
as one unit. This feature offers the following benefits:
❑ All of the switches in a stack can be managed through one
management session with the master switch of the stack. This
eliminates the need to initiate a separate management session for
each switch in your network.
❑ Stacking allows you to build a switch that is customized to the
needs and requirements of your network.
❑ Stacking switches reduces the number of IP addresses you need
to assign to the switches you are managing, since you can use one
IP address for all of the switches in a stack. You assign the IP
address to the master switch of the stack.
Below are guidelines to follow when creating a switch.
❑ A switch stack can consist up to three AT-8350GB switches.
❑ You can also create a mixed stack of AT-8350GB switches and
AT-8326GB switches. The maximum number of switches that you
can have in a mixed stack are as follows:
— Two AT-8350GB switches and two AT-8326GB switches
— One AT-8350GB switch and four AT-8326GB switches
A stack does not require any additional hardware other than the
switches and the stacking cable that comes with the units.
For instructions on how to create a switch stack, refer to Creating a
Switch Stack on page 65.
22
Expansion Slot
S
AT-8350GB Installation Guide
STACK IN
Expansion Slot
Figure 8 Expansion Slot
There is one expansion slot on the back panel of the switch. The slot can
accommodate one expansion module. You can use the expansion slot to
add additional twisted pair or fiber optic ports to the switch.
Contact your Allied Telesyn sales representative for a list of available
expansion modules for the AT-8350GB switch.
For instructions on how to install an expansion module, refer to
Installing an Expansion Module on page 62.
23
Product Description
System LEDs
AT-8350GB
Fast Ethernet Switch
LINK
100
FULL
MODE
The system LEDs on the left side of front panel display general status
information about the entire switch. The system LEDs are defined in
Table 4.
RPS
PWR
FAULT
System LEDs
Figure 9 System LEDs
Table 4 System LEDs
LED State Description
PWR Green System power is ON.
OFF System power is OFF.
RPS
Green Redundant power supply unit is ON.
Optional Redundant Power
Supply Unit
OFF Redundant power supply unit is OFF or
is not connected.
FAULT Green The switch or management software has
malfunctioned. (Refer to Chapter 3,
Troubleshooting on page 60 for instructions on
how to determine and repair the problem.)
Flashing Green The switch is loading its operating software,
running diagnostic tests, writing messages to
FLASH, or downloading files using XMODEM.
24
AT-8350GB Installation Guide
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
10/100 Mbps
Port LEDs
Each 10/100 Mbps port has one LED. Each LED can display a variety of
port status information, including link status, speed, and duplex mode.
Port 1
LED
Port No.
Port 2
LED
Port 3
LED
Figure 10 Port LEDs
You use the Mode select button to toggle the port LEDs to display the
different information. The port Mode LEDs above the Mode button
indicate what information the port LEDs are displaying. For example, if
the 100 mode LED is lit, then each port LED is displaying port speed.
AT-8350GB
Fast Ethernet Switch
LINK
100
FULL
Port Mode
LEDs
MODE
Figure 11 Port Mode LEDs and Button
Note
Toggling the Mode selection button does not affect the normal
operations of the switch.
RPS
PWR
FAULT
25
Product Description
Table 5 describes the 10/100Base-T port LEDs.
Table 5 10/100 Mbps Port LEDs
LED State Description
LINK Flashing Green
A link with activity.
Steady Green A link with no activity.
OFF No link has been established.
100 Green A 100 Mbps link has been established.
OFF A 10 Mbps link has been established.
FULL Green The port is in full-duplex mode.
Flashing Green The port is in half-duplex mode with collisions.
26
Gigabit
Connector LEDs
AT-8350GB Installation Guide
S
M
49
S
M
Connector LEDs
50
Figure 12 Gigabit Connector LEDs
Ports 49 and 50 each have two LEDs. The S (Selection) LED indicates
which port, the twisted pair port or a GBIC port, has been activated in the
management software. The M (Mode) LED indicates the operating
characteristics of the port, such as speed and duplex mode.
Table 6 describes the 10/100/1000 Mbps port LEDs.
Table 6 10/100/1000 Mbps Port LEDs
LED State Description
S (Selection) Steady Green The twisted pair port has been activated in the
management software as the active port.
Amber The GBIC port has been activated in the
management software as the active port.
M (Mode)
LINK Flashing Green
A link with activity.
Steady Green A link with no activity.
OFF No link has been established.
100 Amber A 1000 Mbps link has been established.
Green A 100 Mbps link has been established.
OFF A 10 Mbps link has been established.
FULL Green The port is in full-duplex mode.
Flashing Green The port is in half-duplex mode with collisions.
OFF The port is in half-duplex mode and no data colli-
sions are occurring on the port.
27
Product Description
Expansion
Module
LEDs
Table 7 10/100/1000 Mbps Expansion Module Port LEDs
The expansion module has an LED for each port. Use the Mode select
button located on the front panel of the AT-8350GB switch to toggle the
port LEDs to display port status. The LEDs can display a variety of
information, including link status, speed, and duplex mode.
2 1000 Base-T Module
51
52
LEDs
Figure 13 Expansion Module Port LEDs
Table 7 describes the 10/100/1000 Mbps expansion module port LEDs.
LED State Description
LINK Flashing Green
A link with activity.
Steady Green A link with no activity.
OFF No link has been established.
100 Amber A 1000 Mbps link has been established1.
Green A 100 Mbps link has been established.
OFF A 10 Mbps link has been established.
FULL Green The port is in full-duplex mode.
OFF The port is in half-duplex mode and no data
1
collisions are occurring on the port
1. AT-A49 expansion module only.
.
28
RS-232
Terminal Port
AT-8350GB Installation Guide
STACK OUT
RS232
Terminal Port
Terminal Port
Figure 14 RS-232 Terminal Port
The RS-232 Terminal Port located on the back panel of the switch is used
to establish a local (out-of-band) management session with the switch.
Using the port, you can access the switch’s management software and
configure the switch’s operating parameters.
You establish a local management session by connecting either a VT100
terminal or a personal computer with a terminal emulation program to
the port.
Note
You are not required to manage an AT-8350GB Fast Ethernet
switch. The default switch settings may be sufficient for your
network, in which case you can use the unit as an unmanaged
switch. For the switch’s default settings, refer to Default Switch
Settings on page 91.
The RS-232 Terminal Port has a DB-9 female connector and uses a null
modem management cable.
The settings for the RS-232 Terminal Port are:
❑ Emulation mode: VT100
❑ Data rate: 9600
❑ Data bits: 8
❑ Parity: None
❑ Stop bits: 1
❑ Flow control: None
❑ Key mode: Terminal
29
Product Description
AC Power
Connector
PWR
RPS
100-240 VAC
AC power connector
Figure 15 AC Power Connector
The switch has a single AC power supply socket on the back panel,
which has autoswitch AC inputs. Refer to the Technical Specifications
on page 89 for the input voltage range. To power ON or OFF the switch,
you connect or disconnect the power cord.
30
Redundant
Power Supply
AT-8350GB Installation Guide
PWR
Units
RPS
100-240 VAC
RPS power connector
Figure 16 Redundant Power Supply Connector
There are two external redundant power supply units available for the
AT-8350GB Fast Ethernet switch: the AT-RPS2001 and the AT-RPS2004.
The units provide external power supply to the switch should the
primary (internal) power supply unit fail.
The AT-RPS2001 redundant power supply unit can support one switch at
a time. The unit is installed directly onto the back panel of the switch. For
instructions on how to install this unit, see Installing the AT-RPS2001
Unit on page 71.
Figure 17 AT-RPS2001 Redundant Power Supply Unit
31
Product Description
1 2 3 4 FANRPS
ACTIVE
ACTIVEACTIVE
FAILURE
STANDBY
FAILURE
RPS2004
ACTIVEACTIVE
STANDBY
FAILURE
1 2 3 4 FANRPS
LEDs
The AT-RPS2004 redundant power supply unit can support up to four
switches. This unit can be installed in a standard 19-inch equipment rack.
For instructions on how to install the unit, see Installing the AT-
RPS2004 Unit on page 74.
ACTIVE
RPS2004
FAILURE
RPS4 RPS3 RPS2 RPS1
Front Panel
Back Panel
RPS 14-pin Molex Connectors
AC power
connector
Figure 18 AT-RPS2004 Front & Back Panels
LEDs
The AT-RPS20004 power supply has LEDs on the left side of front panel
that display general status information. The system LEDs are defined in
Table 8.
FAN LEDRPS LEDs
Figure 19 AT-RPS2004 Power Supply LEDs
32
Table 8 lists the AT-RPS2004 power supply LEDs.
Table 8 AT-RPS2004 Power Supply LEDs
LED State Description
Power Status
RPS Flashing Green RPS power is on standby.
Green RPS power is ON and switch is connected
to it.
Red RPS power failed.
Fan Status
FAN Green Fan power is ON.
Red Fan power failed.
AT-8350GB Installation Guide
Type of Connector
The RPS2001 and RPS2004 power supply units feature the 8-pin
connector which connects to the back panel of the AT-8350 GB switch.
The tables below list the 8-pin DIN male and female connector pins and
definitions.
Table 9 lists the 8-pin DIN male connector pins and definitions.
Table 9 Pin Definition of the 8-pin DIN Male Connector (switch side)
Male 8-pin DIN Connector Pin Definition
1GND
2RPS_Present
(4)
(5)
(3)
3 12 volts
4 12 volts
(6)
(8)
MALE
(2)
5 12 volts
(7)
(1)
6 SW_Present
7GND
8GND
33
Product Description
Table 10 lists the 8-pin DIN female connector pins and definitions.
Table 10 Pin Definition of the 8-pin DIN Female Connector
Female 8-pin DIN Connector Pin Definition
1GND
2RPS_Present
312 volts
412 volts
512 volts
(2)
(3)
(1)
(4)
(8)
FEMALE
(5)
(6)
(7)
6 SW_Present
7GND
8GND
The RPS2004 external power supply comes with the 14-pin molex cable
connector that connects to the back panel of the power supply. This
allows you to connect a AT-8350GB switch to the external power supply.
Figure 20 illustrates the pin layout to a 14-pin molex connector and port.
8
8
14
1
1
7
14
7
Figure 20 14-pin Molex Connector Port Pin Layout
See Powering the Switch on page 70 for more information about the
redundant power supplies.
34
Software Features
The following sections describe these software features:
AT-8350GB Installation Guide
❑ AT-S41 Management Software
❑ Spanning Tree Protocol (STP)
❑ Port-based and Tagged Virtual LANs (VLANs)
❑ Quality of Service
❑ IGMP Snooping
❑ Dynamic Host Configuration Protocol (DHCP)
❑ Port Monitoring
❑ Port Trunking
❑ Port Security
AT-S41
Management
Software
Note
All of the features described here are further described in the
AT-S41 Management Software User’s Guide for the AT-8350
Switch.
The AT-8350GB Fast Ethernet switch comes with the AT-S41
management software pre-installed. This management software has
default values for all the operating parameters for a switch. In some
network environments, the default settings might not need to be
changed, allowing you to use the switch as an unmanaged switch.
If you want to manage the switch and change or monitor the operating
parameters, you must access the AT-S41 management software. Some
of the functions that you can do with the management software include
assigning the switch an IP address and subnet mask, creating VLANs and
port trunks, and activating and configuring the Spanning Tree Protocol
parameters.
The management software’s interface consists of menus and prompts
that make it easy for you to configure the switch and view performance
and status information.
There are four ways to access the switch’s management software:
❑ RS-232 Terminal Port
❑ Web Browser
35
Product Description
❑ Telnet Application Protocol
❑ SNMP management program
RS-232 Terminal Port
One method for accessing the management software is by connecting a
terminal or a PC with a terminal emulation program to the RS-232
Terminal Port on the switch, as indicated in Figure 21. This is commonly
referred to as local or out-of-band management. Please refer to Starting
a Local Management Session on page 78 for instructions on how to
start a local management session.
STACK OUT
RS232
Terminal Port
Figure 21 Local Management
Once the session has been established, the management software’s
Main Menu is displayed on the terminal’s screen, as shown in Figure 15.
AT-8350GB Local Management System
Main Menu
[G]eneral Information
[B]asic Switch Configuration...
[A]dvanced Switch Configuration...
Switch [T]ools...
[S]tatistics
[Q]uit
Command>
Enter the character in square brackets to select option
Figure 22 AT-S41 Main Menu - Local Management Session
36
AT-8350GB Installation Guide
Web Browser
You can also manage the switch from a workstation on your network
using a web browser, such as Internet Explorer. This is referred to as
remote or in-band management.
To start a web browser management session, you simply enter the
switch’s IP address in the URL field of the web browser, as shown in
Figure 23. To manage an AT-8350GB switch stack, enter the IP address of
the master switch of the stack.
URL Field with Switch IP Address
Figure 23 URL Field of a Web Browser
Figure 24 shows the AT-S41 management software’s home page.
Figure 24 Web Browser Management Home Page
37
Product Description
Telnet Application Protocol
Using the Telnet application protocol is another way for you to manage
the switch remotely from a workstation on your network. Starting this
type of remote access requires that you specify the IP address of the
switch in the Telnet protocol.
SNMP Management
You can also manage a switch with an SNMP management program,
such as HP Openview. This management method requires loading the
AT-8350GB Fast Ethernet Switch MIBs into the SNMP management
program. The Allied Telesyn Enterprise MIB is available from the Allied
Telesyn web site.
The standard MIBs supported by this switch include:
❑ RFC 1213 (MIB II)
❑ RFC 1493 (Bridge MIB)
Spanning Tree
Protocol (STP)
❑ RFC 1757 (4-Group RMON)
❑ Allied Telesyn Enterprise MIB
The AT-8350GB Fast Ethernet switch is IEEE 802.1D standard-compliant
and supports the spanning tree protocol. STP can be an important part
of large networks where loops exist in the network topology.
A loop occurs when two or more nodes on your network can transmit
data to each other over more than one link. Network loops can seriously
impact network performance because packets can become caught in
repeating cycles, often referred to as broadcast storms, that needlessly
consume network bandwidth and reduce network performance.
STP addresses this problem by ensuring that there is only one path
between the end nodes. Where multiple paths exist, STP places the extra
paths in a redundant or standby mode, leaving only one main active
path. The redundant paths can be activated by STP if the main path goes
down. So not only does STP guard against multiple links between end
nodes, but it also activates backup redundant paths in case a main link
fails.
STP is disabled by default on the AT-8350GB Fast Ethernet switch.
Note
The AT-8350GB Fast Ethernet switch supports only one STP
domain. All virtual LANs that you create will be members of that
STP domain.
38
AT-8350GB Installation Guide
Port-based and
Tagged VLANs
A VLAN is a group of end nodes that form an independent subnetwork.
Each VLAN constitutes a separate broadcast domain, where the frames
of a VLAN are not allowed to cross the VLAN boundary.
VLANs can be extremely useful in improving network performance and
increasing network security. You can create VLANs to group the
workstations, servers, and other networking equipment connected to
your switches into logical workgroups. These VLAN groupings can be
based on similar data needs or security requirements. When networking
devices, such as workstations and servers, are grouped into a VLAN, data
is exchanged between only those members of the group.
Other advantages of VLANs include:
❑ You can group workstations logically or functionally, regardless of
their physical location on the network.
❑ You can change VLAN memberships anytime by software
configuration without moving the workstations physically or
having to move cables from one port to another on the switch.
❑ With VLAN tagging, network servers or other network resources
can be shared among several VLANs without loss of data isolation
or security.
Quality of
Service (QoS)
❑ A VLAN can consist of ports limited to a single switch or ports from
multiple switches. This allows you to group together network
devices that, though physically separated by large distances, will
function as if they are a part of the same physical LAN.
The AT-8350GB Fast Ethernet switch supports:
❑ Port-based VLANs
❑ Tagged VLANs
The AT-8350GB Fast Ethernet switch comes configured with a Default
VLAN. All ports on the switch are members of this Default VLAN.
The AT-8350GB Fast Ethernet switch supports the IEEE 802.1p standard
and Quality of Service. QoS can be important in network environments
where there are time-critical applications, such as voice transmission or
video conferencing, that can be adversely affected by packet transfer
delays.
Prior to QoS, network traffic was handled in a best-effort manner. File
transfer delays did occur, but were mostly transparent to network users.
But with the introduction of time-critical applications, packet transfer
delays can impact performance. For example, delays in packets carrying
voice transmission can result in poor audio quality.
39
Product Description
The QoS feature was designed to address this problem. With it, Ethernet
frames can be assigned different priorities. The switch uses the priorities
when determining which frames to forward first. Frames from endnodes running time-critical applications can be given a high priority, so
that they will be forwarded by the switch ahead of less time-critical
frames.
IGMP Snooping The Internet Group Management Protocol (IGMP) enables routers to
create lists of nodes that want to receive multicast packets from a
multicast application. The router creates a multicast membership list by
periodically sending out queries to the local area networks connected to
its ports. A node wanting to become a member of a particular multicast
group responds to a query by sending a report. Nodes that join a
multicast group are referred to as host nodes.
Once the router has received a request from a host node to join a
multicast group, it notes the multicast group that the host node wants
to join and the port on the router where the node is located. Any
multicast packets belonging to that multicast group are then forwarded
by the router out the port. If a particular port on the router has no nodes
that want to be members of multicast groups, the router does not send
multicast packets out the port. This improves network performance by
restricting multicast packets only to router ports where host nodes are
located.
The IGMP snooping feature on the AT-8350GB switch enables the unit to
monitor the flow of queries from the router and reports from the host
nodes to build its own multicast membership lists. It uses the lists to
forward multicast packets only to switch ports where there are host
nodes that are members of multicast groups. This improves switch
performance and network security by further restricting the flow of
multicast packets only to those switch ports connected to host nodes.
Without IGMP snooping, the switch would flood all multicast packets
out all of its ports, except the port on which it received the packet. Such
flooding of packets can negatively impact switch and network
performance.
Note
By default, IGMP snooping is disabled on the switch.
Note
The AT-S41 software supports both IGMP version 1 and version 2.
40
AT-8350GB Installation Guide
Dynamic Host
Configuration
Protocol
(DHCP)
This application protocol was developed to simplify network
management. It is used to automatically assign IP configuration
information to the devices on your network, such as an IP address,
subnet mask, and, in some instances, a default gateway address.
The AT-8350GB Fast Ethernet Switch supports this protocol and can
obtain its IP configuration information from a DHCP server on your
network. If you activate this feature, the switch will seek its IP address,
subnet mask, and default gateway from a DHCP server residing on your
network.
Most DHCP services allow you to specify whether the IP address
assignment from the server is to be static or dynamic. If you choose
static, the server will always assign the same IP address to the switch
when the switch is reset or powered on. If you choose dynamic, the
server will assign an unused IP address from its list of potential IP
addresses each time the switch is reset or powered on.
Note
The DHCP option is disabled by default on the switch.
Port Monitoring The port monitoring feature allows you to unobtrusively monitor the
traffic being received and transmitted on a port on the switch by having
the traffic copied to another switch port. You can connect a network
analyzer to the port functioning as the monitoring port to monitor the
traffic without impacting network performance or speed.
Port Trunking Port trunking is an economical way for you to increase the bandwidth
between Fast Ethernet switches. A port trunk is two or more data ports
that have been grouped together to increase the bandwidth between
switches by functioning as one logical path. This increase in bandwidth
can prove useful in situations where a single connection between the
devices is insufficient to handle the traffic load.
Port trunks are also useful in adding redundancy to the critical devices of
your network. If one link of a port trunk fails, the remaining links will
continue to provide a connection to the end node.
Despite the software configuration and physical connections, there are
no data loops in a port trunk because of load balancing. The port trunk
always sends packets from a particular source to a particular destination
over the same link within the trunk. A single link is designated for
flooding broadcasts and packets of unknown destination.
41
Product Description
Below are the guidelines to follow when planning a port trunk:
❑ The switch can support up to four port trunks at a time.
❑ A port trunk can consist of up to four 10/100 Mbps twisted pair
ports or two gigabit ports.
❑ The duplex mode, speed, and flow control settings must be the
same for all of the ports in a trunk.
❑ When cabling a trunk, the order of the connections should be
maintained on both nodes. The lowest numbered port in a trunk
on the switch should be connected to the lowest numbered port
of the trunk on the other device, the next lowest numbered port
on the switch should be connected to the next lowest numbered
port on the other device, and so on.
❑ The ports of a port trunk must be of the same type. For example,
they can be all twisted pair ports or all fiber optic ports.
❑ For an AT-8350GB switch, you can create a port trunk of the GBIC
modules installed in the Port 49 and Port 50 slots, provided that
the GBIC modules are of the same type.
❑ The ports on the end node must also be configured as a port
trunk.
Caution
Do not connect the cables of a port trunk to the switch until after
you have created the port trunk using the switch’s management
software. Connecting the cables before the port trunk has been
configured will create a data loop in your network topology, and
that could adversely affect network performance.
42
AT-8350GB Installation Guide
Example of a Port Trunk
You can use port trunking to increase the bandwidth between switches.
The example in Figure 25 shows a port trunk of four data links between
two AT-8350GB Fast Ethernet switches.
1 1
AT-8350GB
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647
LINK
RPS
PWR
100
FULL
FAULT
MODE
AT-8350GB
1 1
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647
LINK
RPS
PWR
100
FULL
FAULT
MODE
S
M
S
M
48
49
50
S
M
S
M
48
49
50
Figure 25 Port Trunk Example
43
Product Description
Port Security The AT-8350GB Fast Ethernet switch has three levels of port security:
Normal (default), Limited, and Secure. You can use the port security
levels to enhance the security to your network. The security levels are
briefly described below. For further information and instructions on
activating a security level, refer to the AT-S41 Management Software
User’s Guide for the AT-8350GB Switch.
Normal
This is the default port security setting and indicates that port security
has been disabled.
Limited
You use this security level to manually specify the maximum number of
dynamic MAC addresses a port on the switch can learn. Once a port has
learned its maximum limit of MAC addresses, it will discard any frames
that it receives with a source MAC address not already learned and
stored in the MAC address table.
This security level can prevent unauthorized individuals from
connecting to your network and gaining access to network resources.
For example, if an AT-8350GB port is connected to an Ethernet hub with
four workstations attached, you can configure the switch port to learn
only four MAC addresses. Once those addresses are learned, any one
else attempting to connect to the network through the Ethernet hub
would be denied access.
Secure
This security level causes the switch to immediately stop learning new
dynamic MAC addresses. The switch forwards frames based on the
dynamic MAC addresses that it has already learned and any static MAC
addresses that the network administrator has entered.
44
A Few Basics to Ethernet Switching
An Ethernet switch interconnects network devices, such as workstations,
printers, routers, and other Ethernet switches, so that they can
communicate with each other by sending and receiving Ethernet
frames.
AT-8350GB Installation Guide
MAC Address
Table
Every hardware device on your network has a unique MAC address. This
address is assigned to the device by the device’s manufacturer. For
example, when you install a network interface card (NIC) in a computer
so that you can connect it to the network, the NIC already has a MAC
address assigned to it by its manufacturer.
The AT-8350GB Fast Ethernet switch contains an 8,000 entry MAC
address table. The switch uses the table to store the MAC addresses of
the network nodes connected to its ports, along with the port number
on which each address was learned.
The switch learns the MAC addresses of the end nodes by examining the
source address of each packet received on a port. It adds the address
and port on which the packet was received to the MAC table if the
address had not already been entered in the table. The result is a table
that contains all the MAC addresses of the devices that are connected to
the switch’s ports, and the port number where each address was
learned.
When the switch receives a packet, it also examines the destination
address and, by referring to its MAC address table, determines the port
on which the destination node is connected. It then forwards the packet
to the appropriate port and on to the end node. This increases network
bandwidth by limiting each packet to the appropriate port where the
intended end node is located, freeing the other switch ports for
receiving and transmitting data.
If the switch receives a packet with a destination address that is not in
the MAC address table, it floods the packet to all the ports on the switch.
If the ports have been grouped into virtual LANs, the switch floods the
packet only to those ports which belong to the same VLAN as the port
on which the packet was received. This prevents packets from being
forwarded onto inappropriate LAN segments, increasing network
security. When the destination node responds, the switch adds its MAC
address and port number to the table.
45
Product Description
If the switch receives a packet with a destination address that is on the
same port on which the packet was received, it discards the packet
without forwarding it on to any port. Since both the source node and the
destination node for the packet are located on the same port on the
switch, there is no reason for the switch to forward the packet.
Duplex Mode Duplex mode refers to how an end node receives and transmits data. If
an end node can receive or transmit data, but not both simultaneously,
the end node is operating in what is referred to as half-duplex mode. If
an end node can both receive and transmit data simultaneously, the
node is said to be operating in full-duplex mode. Naturally, a node
capable of operating in full-duplex can handle data much faster than a
node that can only operate in half-duplex mode.
Each port on an AT-8350GB switch can operate in either half- or fullduplex mode. The ports are IEEE 802.3u-compliant and will AutoNegotiate the duplex mode setting for you. If the end node connected
to a port on the switch is capable of full-duplex operation, the switch
sets the port to full-duplex. If the end node is capable of only halfduplex, the port is set automatically to half-duplex.
Store and
Forward
Backpressure
and Flow
Control
By allowing the switch to configure the duplex mode for each port itself,
you will not need to change the setting for a port on the switch should
you replace an end node with a node that has a different duplex mode
capability. With Auto-Negotiation, the switch will automatically reset the
port to a new duplex mode setting for you.
If desired, Auto-Negotiation on the switch ports can be disabled so that
you can set the duplex mode manually through the switch’s
management software.
These Fast Ethernet switches use store and forward as the method for
receiving and transmitting frames. When a Ethernet frame is received on
a switch port, the switch does not retransmit the frame out the
destination port until it has received the entire frame and stored the
frame in a port buffer. It then examines the frame to determine if it is a
valid frame. Invalid frames, such as fragments or runts, are discarded by
the switch. This insures that only valid frames are transmitted out the
switch ports and that damaged frames are not propagated on your
network.
In order for an Ethernet switch to maintain the orderly movement of
data between the end nodes that are connected to its ports, it may
periodically need to signal an end node to stop sending data. This can
occur under several circumstances. For example, if two end nodes are
operating at different speeds, the switch, while transferring data
46
AT-8350GB Installation Guide
between the nodes, might need to instruct the faster end node to stop
transmitting data to allow the slower end node to catch up. An example
of this would be when a server operating at 100 Mbps is sending data to
a workstation operating at only 10 Mbps.
How a switch signals an end node to stop transmitting data differs
depending on the speed and duplex mode of the end node and switch
port. A twisted pair port operating at 100 Mbps port and half-duplex
mode stops an end node from transmitting data by forcing a collision. A
collision on an Ethernet network occurs when two nodes attempt to
transmit data using the same data link at the same time. A collision
causes end nodes to stop sending data. When the switch needs to stop a
100 Mbps, half-duplex end node from transmitting data, it forces a
collision on the data link, which stops the end node. Once the switch is
ready to receive data again, the switch stops forcing collisions. This is
referred to as backpressure.
A twisted pair port operating at 100 Mbps and full-duplex mode uses
PAUSE frames, as specified in the IEEE 802.3x standard, to stop the
transmission of data from an end node. Whenever the switch wants an
end node to stop transmitting data, it issues this frame. The frame
instructs the end node to cease transmission. The switch continues to
issue PAUSE frames until it is ready again to receive data from the end
node. This is referred to as flow control.
47
Product Description
Network Topologies
This section illustrates several of the network topologies you can create
with the AT-8350GB Fast Ethernet switch.
Power
Workgroup
Topology
The topology shown in Figure 26 is commonly referred to as a power
workgroup topology. Each workstation or node is connected directly to
a port on an AT-8350GB Fast Ethernet switch, giving each node a
dedicated data link to the switch for best performance and reliability.
The devices can operate at either 10 Mbps or 100 Mbps.
1
AT-8350GB
1
PS
R
LINK
R
PW
100
T
L
AU
F
L
UL
F
MODE
11
9
7
5
3
1
28
26
24
22
20
18
16
14
12
10
8
6
4
2
38
36
34
32
30
48
6
4
44
42
40
47
45
43
41
39
37
5
3
33
31
29
27
25
23
21
19
17
5
1
13
49
S
M
S
M
AT-8350GB Fast
50
Ethernet Switch
Legend
10 Mbps
100 Mbps
Figure 26 Power Workgroup Topology
48
AT-8350GB Installation Guide
Collapsed
Backbone - Hub
Topology
In the topology illustrated in Figure 27, an AT-8350GB Fast Ethernet
switch is used to connect 10/100 Mbps Ethernet hubs. This type of
topology is often referred to as a collapsed backbone topology. The
switch functions as the focal point for all workgroup hubs in your
network by acting as a bridge between the different workgroups. The
switch transfers an Ethernet frame from hub to hub only when the
destination node for the frame is on a different hub than the node that
originated the frame. This reduces the amount of unnecessary data
traffic in each workgroup, freeing up bandwidth and improving network
performance.
1
AT-8350GB
LINK
100
LL
FU
DE
MO
Ethernet
Hubs
1
1
RPS
R
PW
FAULT
2
11
9
7
5
3
8
2
6
2
24
22
20
8
1
16
14
12
10
8
6
4
38
36
34
32
30
48
46
44
42
40
47
45
3
4
41
39
37
35
3
3
31
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AT-8350GB Fast
50
Ethernet Switch
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Legend
10 Mbps
100 Mbps
Figure 27 Collapsed Backbone - Hub Topology
1
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54
6
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8
49
Product Description
Switch Stacking
Topology
Site 1:
AT-8350GB
stack
A switch stack creates a powerful logical switch by allowing two or more
individual switches to function as one unit. Switch stacks can simplify
network management because you can manage the switches as a unit,
rather than individually. The network topology in Figure 22 includes
several examples of AT-8350GB switch stacks.
Site 2:
AT-8350GB switch
9
4
0
5
9
4
0
5
9
4
0
5
9
4
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5
Technical
Support
workgroup
Site 3:
AT-8350GB stack
Site 4:
AT-8350GB stack
9
4
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5
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0
5
9
4
0
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9
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Production
workgroup
Sales
workgroup
Engineering
workgroup
Legend
10Base-T/100Base-TX link
100Base-FX link
1000Base-SX link
1000Base-LX link
Site 5:
Technical
Support
workgroup
Sales
workgroup
Figure 28 Switch Stacking Topology
50
Chapter 2
Installation
This chapter contains the installation procedures for the switch. This
chapter contains the following sections:
Installation Safety Precautions on page 52
Selecting a Site for the Switch on page 54
Required Cables on page 55
Unpacking the Switch on page 56
Installing the Switch on a Desktop on page 57
Installing the Switch in a Rack on page 58
Installing an Optional GBIC Module on page 59
Installing an Expansion Module on page 62
Creating a Switch Stack on page 65
Cabling the Switch on page 67
Powering the Switch on page 70
Starting a Local Management Session on page 78
Warranty Registration on page 81
51
Installation
Installation Safety Precautions
Please review the following safety precautions before you begin to
install the switch. Refer to Translated Electrical Safety and Emission
Information on page 93 for translated safety statements in your
language. (The laser warnings apply only if you purchased an optional
GBIC module or expansion module with a fiber optic port for the
AT-8350GB switch.)
Laser
Class 1 laser product.
Laser
Do not stare into the laser beam.
Warning
Electric Shock Hazard: To prevent electric shock, do not remove the
cover. There are no user-serviceable parts inside. The unit contains
hazardous voltages and should only be opened by a trained and
qualified technician.
6
7
8
Warning
Lightning Danger: Do not work on this equipment or cables during
periods of lightening activity.
Warning
Power cord is used as a disconnection device: To de-energize
equipment, disconnect the power cord.
Warning
Electrical-Type Class 1 Equipment: This equipment must be
earthed. The 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.
Caution
Pluggable Equipment: The socket outlet should be installed near
the equipment and should be easily accessible.
Caution
Air vents: The air vents must not be blocked on the unit and must
have free access to the room’s ambient air for cooling.
9
10
11
12
13
52
Caution
Operating Temperature: This product is designed for a maximum
ambient temperature of 40°C.
14
AT-8350GB Installation Guide
Caution
All Countries: Install this product in accordance with local and
national electric codes.
15
53
Installation
Selecting a Site for the Switch
Observe the following requirements when choosing a site for your
switch:
If you plan to install the switch in an equipment rack, check to be
sure that the rack is safely secured and that it will not tip over.
Devices in a rack should be installed starting at the bottom, with
the heavier devices near the bottom of the rack.
If you are installing the switch on a table, be sure that the table is
level and secure.
The power outlet for the switch should be located near the unit
and should be easily accessible.
The site should allow for easy access to the ports on the front of
the switch. This will make it easy for you to connect and
disconnect cables, as well as view the switch’s LEDs.
To allow proper cooling of the switch, air flow around the unit and
through its vents on the side and rear should not be restricted.
Do not place objects on top of the switch.
Do not expose the switch to moisture or water.
Make sure that the site is a dust-free environment.
You should use dedicated power circuits or power conditioners to
supply reliable electrical power to the network devices.
When stacking switches, a common power source such as a
power strip is recommended for all of the switches in the stack.
54
Required Cables
AT-8350GB Installation Guide
Table 11 contains the specifications of the cables required for the
twisted pair ports on the AT-8350GB Fast Ethernet switch.
Table 11 Media Types and Distances
Speed Category Maximum Distance
10 Mbps Category 3 or better
100-ohm shielded or
unshielded, straightthrough or crossover
twisted pair cable
100 Mbps Category 5 or
Category 5E
(Enhanced) 100-ohm
shielded or
unshielded, straightthrough or crossover
twisted pair cable
1000 Mbps Category 5 and
Category 5E
(Enhanced) 100-ohm
shielded or
unshielded, straightthrough twisted pair
cable
100 m (328 ft.)
100 m (328 ft.)
100 m (328 ft.)
Note
The ports on the AT-8350GB switch are IEEE 802.3ab-compatible
and are configured automatically by the switch as MDI or MDI-X
when connected to a 10 Mbps or 100 Mbps end node. This allows
you to use either a straight-through or cross-over cable.
Note
For cabling specifications for an optional GBIC module or
expansion module, refer to the Module Installation Guide included
with the module.
55
Installation
Unpacking the Switch
To unpack the switch, perform the following procedure:
1. Remove all components from the shipping package and store the
packaging material in a safe location.
Note
You must use the original shipping material if you need to return
the unit to Allied Telesyn.
2. Place the switch on a level, secure surface.
3. Make sure the following hardware components are included in your
switch package. If any item is missing or damaged, contact your Allied
Telesyn sales representative for assistance.
AT-8350GB
LIN
0
10
L
U
F
D
MO
1
3
1
S
P
R
K
R
W
P
T
L
U
A
F
L
E
4
2
1
9
7
5
40
38
36
34
32
30
28
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14
12
10
8
6
39
37
35
33
31
29
27
25
23
21
19
17
15
13
1
One AT-8350GB Fast Ethernet switch
Two mounting brackets
Eight Phillips-head screws
Four rubber feet
Power cord (Americas, EC, Australia, and UK only)
Null modem management cable
One stacking cable
Warranty card
41
42
M
S
M
48
46
44
1
47
45
S
43
49
50
56
Two extra serial number stickers
Two extra MAC address labels
Installing the Switch on a Desktop
Perform the following procedure to install the switch on a desktop or
table. If you would prefer to install the switch in a rack, go to the next
procedure:
1. Place the unit upside down on a level, secure surface.
2. Remove the adhesive tabs from the stick-on rubber feet and apply
one tab to each corner on the bottom of the switch.
AT-8350GB Installation Guide
50
49
48
M
46
4
4
S
M
S
1
42
40
38
36
34
32
0
47
45
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37
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1
Figure 29 Attaching Rubber Feet to Switch
3. Turn the switch over.
57
Installation
Installing the Switch in a Rack
Perform the following procedure to install the switch in a standard 19inch rack. If you are not installing the switch in a rack, go to the next
procedure:
1. Attach a rack-mounting bracket to one side of the switch using four
of the screws that came with the switch. See Figure 23.
Figure 30 Attaching a Rack-mounting Bracket
2. Install the second rack-mounting bracket on the other side of the
switch using the four remaining screws.
3. Mount the switch in a19-inch rack using standard screws (not
provided).
1
1
3
5
7
9
1
1
1
3
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1
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19
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4
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58
Figure 31 Installing the Switch in a Rack
4. Ensure that the switch is installed straight and level.
Installing an Optional GBIC Module
If you purchased an optional GBIC module, perform the following
procedure. If you did not purchase an optional module, go to the next
procedure.
1. Unpack the GBIC module from its shipping container and store the
packaging material in a safe location.
AT-8350GB Installation Guide
TransmitterReceiver
Figure 32 GBIC Module
Note
You must use the original shipping material if you need to return
the module to Allied Telesyn.
Warning
A GBIC module can be damaged by static electricity. Be sure to
observe all standard electrostatic discharge (ESD) precautions, such
as wearing an antistatic wrist strap, to avoid damaging the module.
2. Check that the GBIC package includes all the items listed below. If any
item is missing or damaged, contact your Allied Telesyn sales
representative for assistance.
One GBIC module
Installation Guide
Warranty card
59
Installation
Follow these guidelines to ensure the performance of your GBIC:
GBICs are static sensitive. To prevent electrostatic discharge
damage (ESD), follow your normal board and component
handling procedures.
GBICs are dust sensitive. When the GBIC is stored or when a fiber-
optic cable is not plugged in, always keep plugs in the GBIC
optical bores.
The most common source of contaminants in the optical bores is
debris picked up on the ferrules of the optical connectors. Use an
alcohol swab or wipe to clean the ferrules of the optical
connector.
Bore
Ferrule
Figure 33 Optical Bore & Ferrule of GBIC Module
Note
Unnecessary removal and insertion of a GBIC could lead to
premature failure.
60
AT-8350GB Installation Guide
3. Slide the GBIC module into one of the GBIC slots in the front of the
AT-8350GB switch. The GBIC module is completely seated in the slot
when it clicks into place.
Figure 34 Installing a GBIC Module
4. If you purchased two GBIC modules for the switch, repeat this
procedure to install the second module.
Note
In order to use a GBIC module in ports 49 or 50, you must configure
the port in the management software to operate as a GBIC port and
not as a twisted pair port. For instructions, refer to the AT-S41
Management Software User’s Guide for the AT-8350GB Switch.
61
Installation
Installing an Expansion Module
Caution
To avoid any damage to the switch or module, make sure that the
switch is powered OFF before attempting to install an expansion
module.
This section describes how to install an optional expansion module. The
AT-8350GB switch comes with one expansion slot which is located on
the back panel of the switch.
To install an expansion module, follow these steps:
1. Unpack the expansion module from its shipping container and store
the packaging material in a safe location.
Note
You must use the original shipping material if you need to return
the module to Allied Telesyn.
2. Check that the expansion module package includes all the items
listed below. If any item is missing or damaged, contact your Allied
Telesyn sales representative for assistance.
One Expansion Module
Installation Guide
Warranty card
3. Face the back panel of the switch and locate the expansion slot (left
side of switch).
4. To remove the expansion slot faceplate, carefully loosen the
installation screws found on the left and right sides of the faceplate,
as displayed in Figure 35.
Note
If removing an expansion module, store the module in an antistatic
bag or immediately install it in another switch.
62
Figure 35 Removing the Expansion Slot Faceplate
2 1000 Base-T Module
51
52
5. Pull the faceplate straight out of the slot.
AT-8350GB Installation Guide
STACK IN
Keep the faceplate in a safe area in case you need to replace it on
the slot again. The faceplate will keep any dust from getting into
the switch and will maintain proper airflow if the slot remains
empty.
6. Carefully slide the module into the slot until the module faceplate
makes contact with the switch, as displayed in Figure 36. Avoid
touching the module components.
STACK IN
Figure 36 Installing a Module
63
Installation
7. Tighten the installation screws found on the module faceplate.
Caution
Always use the installation screws to secure the module to the
switch. Leaving a module partially seated may cause the system to
halt and subsequently crash.
64
Creating a Switch Stack
To create a switch stack, perform the following procedure. If you are not
creating a switch stack, go to the next procedure.
Below are guidelines to follow when creating a switch:
A switch stack can consist up to three AT-8350GB switches.
You can also create a mixed stack of AT-8350GB switches and
AT-8326GB switches. The maximum number of switches that you
can have in a mixed stack are as follows:
— Two AT-8350GB switches and two AT-8326GB switches
— One AT-8350GB switch and four AT-8326GB switches
To build a stack of two or more switches, perform the following steps:
1. Select one of the Ethernet switches to be the master switch of the
stack. The other switch(es) will be slave switch(es). If the switches
have different versions of the AT-S41 management software, select
the switch that has the most recent version of the AT-S41
management software as the master switch.
AT-8350GB Installation Guide
Note
During network operations, only the master switch runs the AT-S41
management software. This occurs even if a slave switch contains a
more recent version of the AT-S41 software. For this reason, it is
important that the switch you select to be the master switch has
the most recent version of the management software.
2. Make sure the switches are powered OFF.
3. Connect a stacking cable between the STACK OUT port on the back
panel of the master switch and the STACK IN port on the back panel
of the slave switch. If stacking more than two switches, continue to
connect each subsequent slave switch in the same way to create a
daisy chain configuration.
65
Installation
Figure 26 illustrates a stack of three AT-8350GB switches.
Master switch
STACK IN STACK OUT
RS232
Terminal Port
RPS
Slave switch
STACK IN STACK OUT
RS232
Terminal Port
RPS
Slave switch
STACK IN STACK OUT
RS232
Terminal Port
RPS
Figure 37 Stack of Three Switches
Figure 38 illustrates a stack of four switches consisting of two
AT-8350GB switches and two AT-8326GB switches.
STACK IN STACK OUT
RS232
Terminal Port
RPS
PWR
100-240 VAC
PWR
100-240 VAC
PWR
100-240 VAC
PWR
100-240 VAC
STACK IN STACK OUT
STACK IN STACK OUT
STACK IN STACK OUT
RS232
Terminal Port
RPS
Figure 38 A Stack of Four Switches
Note
Never add or remove a stacking cable when the switches are
powered ON.
PWR
100-240 VAC
100-240 VAC
100-240 VAC
66
Cabling the Switch
Perform the following procedure to connect the data cables to the
switch ports. Refer to Required Cables on page 55 for cable
specifications.
1. Connect the twisted pair data cables to the RJ-45 ports on the switch,
as shown in Figure 39.
8
AT-8350GB Installation Guide
9
11
13
15
17
10
12
14
19
21
23
25
18
20
22
24
26
Figure 39 Connecting the Twisted Pair Data Cables
When connecting a twisted pair cable to a port on the switch,
observe the following guidelines:
An RJ-45 connector should fit snugly into the port on the switch.
The tab on the connector should lock the connector into place.
Do not connect a port on the switch to a phone jack. Doing so can
damage the switch.
Since the RJ-45 ports on the switch are auto-MDI/MDI-X, you can
use either straight-through or cross-over twisted pair cables to
connect the network devices.
If your network topology will contain a loop where two or more
network devices can communicate with each other over more
than one data path, do not connect the network cables forming
the loop until after you have activated the Spanning Tree Protocol
(STP) on the switch. Data loops can adversely affect network
performance. For instructions on how to activate STP, refer to the
AT-S41 Management Software User’s Guide for the AT8350GB Switch.
67
Installation
If you are creating a port trunk, do not connect the cables of the
trunk to the switch until you after have configured the trunk using
the switch’s management software. Connecting the trunk cables
to the switch before you have configured the software will result
in a data loop, which can adversely affect network performance.
For instructions on how to configure a port trunk, refer to the
AT-S41 Management Software User’s Guide for the
AT-8350GB Switch.
2. If you installed an optional GBIC module, remove the dust cover from
the GBIC port. Store the dust cover in a safe place so that you can use
it to protect the port if you disconnect the fiber cable.
47
S
46
48
M
S
M
49
50
Figure 40 Removing the Dust Cover from a GBIC Module
Caution
Do not remove the dust cover if you do not intend to connect the
GBIC cable at this time. Dust contamination can adversely impact
the operations of the port.
68
AT-8350GB Installation Guide
3. Attach the fiber optic data cable to the port on the GBIC module.
47
S
46
48
M
S
M
49
50
Figure 41 Attaching a Fiber Optic Cable to a GBIC Module
When you attach a fiber optic cable to a GBIC module, be sure to
observe the following guidelines:
You should verify that you are using the appropriate type of fiber
optic cabling. For GBIC cabling specifications, refer to the GBIC
Installation Guide.
You should verify that the operating specifications of the remote
fiber optic port are compatible with the GBIC module. For
example, you cannot connect a fiber optic GBIC module with a
maximum distance of 40 kilometers and an operating wavelength
of 1550 nanometers (nm) to a remote fiber optic port with an
maximum distance of only 10 kilometers and an operating
wavelength of 1310 nm.
Be sure that the cable connector is firmly locked into place in the
port.
If the GBIC module has a dual SC connector, be sure to connect the
receiver fiber port on the module to the transmitter port on the
remote end node, and the transmitter fiber port on the GBIC
module to the receiver port on the remote node.
4. If you have installed an optional expansion module, connect the fiber
optic or twisted pair data cable to the port.
69
Installation
Powering the Switch
1. Apply AC power to the switch by plugging the power cord into the AC
power connector on the back panel of the unit and plugging the
other end into a wall outlet.
If powering on a switch stack, power on the last slave switch in the
stack first and then each slave switch in the daisy chain hierarchy
in ascending order, ending with the master switch. To simplify the
process, you can connect all of the switches, both master and
slaves, to the same power circuit, such as a power strip, and so be
able to apply power to all of the switches at the same time.
As power is applied to the switch, the FAULT LED (shown in Figure
42) flashes briefly as the switch loads its operating software. This
process takes only a minute or two. After the switch has finished
loadings its software, the FAULT LED will stop flashing and remain
OFF.
Warning
The power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord.
10
AT-8350GB
Fast Ethernet Switch
LINK
100
FULL
MODE
Figure 42 FAULT LED
Note
Refer to the section System LEDs on page 24 for information on
the system LEDs.
The switch is ready for network operations.
Note
If you do not need to change the default parameter settings of the
switch, no further installation steps are required. For the default
settings, refer to the AT-S41 Management Software User’s Guide
for the AT-8350GB Switch.
RPS
PWR
FAULT
FAULT LED
70
AT-8350GB Installation Guide
Installing the
AT-RPS2001
Unit
Perform the following procedure to install the optional AT-RPS2001
external power supply unit onto the switch.
1. Unpack the AT-RPS2001 power supply from its shipping container
and store the packaging material in a safe location.
Figure 43 AT-RPS2001 Redundant Power Supply
Note
You must use the original shipping material if you need to return
the module to Allied Telesyn.
2. Check that the package includes all the items listed below. If any item
is missing or damaged, contact your Allied Telesyn sales
representative for assistance.
One RPS2001 Redundant Power Supply
Power cord (Americas, EC, Australia, and UK only)
Installation Guide
Warranty card
71
Installation
3. Facing the back panel of the switch, connect the power supply unit to
the labeled RPS receptacle located on the right side of the switch.
RPS Receptacle
Figure 44 Connecting the AT-RPS2001 Unit to the Switch
4. Tighten the installation screws found on the power supply unit. Make
sure the unit is securely fastened to the back panel of the switch.
Installation Screws
Switch
RPS Unit
Figure 45 Installing the AT-RPS2001 Unit onto the Switch
72
AT-8350GB Installation Guide
5. Connect the RPS power cord to the external power supply.
Power Supply Unit RPS Power Cord
Figure 46 Connecting the AT-RPS2001 Unit
6. Connect the other end of the power cord to an AC-input power
source.
73
Installation
Installing the
AT-RPS2004
Unit
Note
Make sure you install the redundant power supply close enough to
your switch so that you can connect all power cords to the switch
and to the power outlet. We recommend that you install the
redundant power supply directly above or below your AT-8350GB
switches or in a directly adjacent rack.
Perform steps 1 to 6 in the following procedure to install the optional
AT-RPS2004 redundant power supply unit in a standard 19-inch
equipment rack. If you are not installing the power supply in a rack, go to
step 7.
1. Unpack the AT-RPS2004 power supply from its shipping container
and store the packaging material in a safe location.
RPS
1
2
3
4
FAN
Note
You must use the original shipping material if you need to return
the module to Allied Telesyn.
2. Check that the package includes all the items listed below. If any item
is missing or damaged, contact your Allied Telesyn sales
representative for assistance.
One RPS2004 Redundant Power Supply
Power cord (Americas, EC, Australia, and UK only)
RPS cable
74
Installation Guide
Warranty card
AT-8350GB Installation Guide
3. Attach a rack-mounting bracket to one side of the power supply unit
using four of the screws that came with the unit, as displayed in
Figure 47.
Figure 47 Attaching a Rack-mounting Bracket
4. Install the second rack-mounting bracket on the other side of the
power supply unit using the four remaining screws.
5. Mount and secure the power supply unit in a19-inch rack by using
four standard screws (not provided).
R
P
S
1
2
3
4
F
A
N
Figure 48 Installing the Power Supply Unit in a Rack
75
Installation
6. Ensure that the power supply unit is installed straight and level.
7. Connect the AC-power cord to the AT-RPS2004 unit.
Figure 49 Connecting the AC-power to the AT-RPS2004 Unit
8. Connect the other end of the power cord to an AC power source.
9. Connect an 8-pin DIN connector to the RPS receptacle located on the
back panel of the switch, as displayed in Figure 50.
RPS receptacle
8-pin DIN connector
76
Figure 50 Connecting the RPS connector
AT-8350GB Installation Guide
10. Connect the 14-pin molex connector of the RPS cable to the
AT-RPS2004 unit, as displayed in Figure 51.
14-pin molex connector
Figure 51 Connecting to the AT-RPS2004 unit
11. Repeat steps 7 and 8 to connect additional switches to the
AT-RPS2004 unit.
77
Installation
STACK OUT
RS232
Starting a Local Management Session
The procedure in this section explains how to start a local (out-of-band)
management session using the RS-232 Terminal Port on the back panel
of the switch. You can use a local management session to configure the
switch’s operating parameters and view performance and error
statistics.
To start a local management session, perform the following procedure:
1. Connect one end of the null modem management cable to the RS232 Terminal Port on the back panel of the master switch, as shown in
Figure 32.
Terminal
Por
t
Figure 52 Connecting the Null Modem Management Cable to the
RS-232 Terminal Port
Note
You must connect the terminal to the RS-232 port on the master
switch to locally manage a switch stack. You cannot locally manage
a switch stack through a slave switch.
2. Connect the other end of the cable to an RS-232 port on a terminal or
a personal computer with a terminal emulation program.
78
AT-8350GB Installation Guide
3. Set the terminal or the terminal emulation program to the following
settings:
Emulation mode: VT100
Baud rate: 9600
Data bits: 8
Parity: None
Stop bits: 1
Flow control: None
Key mode: Terminal keys
Note
These are the default settings for the RS-232 Terminal Port. They are
for a DEC VT100 or ANSI terminal or an equivalent terminal
emulation program.
When the terminal session starts, it displays the management software’s
login prompt, shown in Figure 34. Enter the login name and password.
The default login name and default password are both “manager.” For
instructions on how to change the password, refer to the AT-S41
Management Software User’s Guide for the AT-8350GB Switch.
AT-8350GB Management System Version 1.00F
Local - Console
Allied Telesyn International Corp.
Copyright, 2001
==================================================
Login Menu
Login: manager
Password: _
Figure 53 AT-S41 Login Prompt - Local Management Session
79
Installation
The switch displays the management software’s Main Menu, shown in
Figure 54.
AT-8350GB Local Management System
Main Menu
[G]eneral Information
[B]asic Switch Configuration...
[A]dvanced Switch Configuration...
Switch [T]ools...
[S]tatistics
[Q]uit
Command>
Enter the character in square brackets to select option
Figure 54 AT-S41 Main Menu - Local Management Session
You can now manage the switch using the management
interface. For instructions, refer to the AT-S41 Management
Software User’s Guide for the AT-8350GB Switch. This guide is
available from the Allied Telesyn web site at http://
www.alliedtelesyn.com.
80
Warranty Registration
When you have finished installing the switch, register your product by
completing the enclosed warranty card and mailing it in.
AT-8350GB Installation Guide
81
Installation
82
Chapter 3
Troubleshooting
This chapter contains information on how to troubleshoot the switch
and its components in the event a problem occurs.
Note
If after following the instructions in this chapter you are unable to
resolve the problem, contact Allied Telesyn Technical Support for
assistance. Refer to Contacting Allied Telesyn Technical Support
on page 12 for information on how to contact our Technical
Support Department.
Check the PWR LED on the front of the switch. If the LED is OFF,
indicating that the unit is not receiving power, do the following:
Make sure that the power cord is securely connected to the power
source and to the AC connector on the back panel of the switch.
Verify that the power outlet has power by connecting another
device to it.
Try connecting the unit to another power source.
Try using a different power cord.
Check that the voltage from the power source is within the
required levels for your region.
Verify that the LINK LED for each twisted pair port is ON or flashing. If a
Link LED is OFF, do the following:
Verify that the end node connected to the port is powered ON and
is operating properly.
83
Troubleshooting
Check that the twisted pair cable is securely connected to the port
on the switch and to the port on the end node.
Make sure that the twisted pair cable does not exceed 100 meters
(328 feet).
Verify that you are using the appropriate category of twisted pair
cable: Category 3 or better for 10 Mbps operation, Category 5 and
Category 5E for 100/1000 Mbps operation.
Make sure that the operating parameters of the port on the switch
are compatible with the end node to which the port is connected.
This will require using the switch’s management software. For
instructions, refer to the AT-S41 Management Software User’s
Guide for the AT-8350GB Switch.
If you installed an optional GBIC module, verify that the LINK LED for the
port is ON. If the LED is OFF, do the following:
Check to make sure that the GBIC module is completely seated in
the GBIC slot. It should click into place.
Verify that the end node connected to the port is powered ON and
is operating properly.
Check that the fiber optic cable is securely connected to the port
on the switch and to the port on the end node.
Make sure that the cable connected to the fiber optic receiver port
on the GBIC module is connected to the transmitter port on the
remote end node and that the fiber optic transmitter port on the
GBIC module is connected to the receiver port on the end node.
The GBIC port LED will be illuminated when the Tx and Rx ports
are connected properly. If the LINK LED is not illuminated, reverse
the cables. Refer to Gigabit Connector LEDs on page 27 for more
information.
Make sure that the fiber optic cable does not exceed the allowed
maximum distance. For GBIC maximum distances, refer to the
GBIC Installation Guide.
84
Verify that you are using the appropriate type of fiber optic cable.
For cable specifications, refer to the GBIC Installation Guide.
Use a fiber optic tester to test the attenuation on the cable to
determine if the strength of the fiber optic signal falls below
AT-8350GB Installation Guide
acceptable limits. For specifications on the transceiver in the GBIC
module, refer to the GBIC Installation Guide.
Check that the operating specifications (for instance, wavelength
and maximum operating distance) of the fiber optic port on the
remote end node are compatible with the fiber optic port on the
GBIC module. For example, you cannot connect a GBIC module
with a maximum distance of 40 kilometers and a wavelength of
1550 nanometers (nm) to a remote fiber optic port with an
maximum distance of only 10 kilometers and a wavelength of
1310 nm.
Make sure you have configured the port in the management
software as a GBIC port and not as a twisted pair port. For
instructions on how to change this setting, refer to the AT-S41
Management Software User’s Guide. When you change the
port setting in the management software to GBIC, the GBIC S
(Selection) LED to the right of the GBIC slot will turn amber.
Verify that the remote fiber optic port is operating at 1000 Mbps
and in full-duplex mode. The 1000 Mbps operating speed of a
GBIC module is fixed and cannot be changed.
If the FAULT LED is blinking, no action is required. A blinking FAULT LED
could indicate that a new version of the management software is being
downloaded to the switch or that the switch’s configuration is being
changed, such as with the creation of a new VLAN. The LED will stop
blinking once the switch has completed the download or its
reconfiguration.
If the FAULT LED is constantly ON, a problem has occurred in the switch.
Do the following:
Power OFF the switch by disconnecting the power cord, wait a
few moments, and then reconnect the power cord.
If the FAULT LED remains ON, try downloading a new version of
the switch’s management software through the RS-232 Terminal
Port on the front panel of the switch. For instructions, refer to the
switch’s software management guide.
Note
If the FAULT LED remains steady ON, contact Allied Telesyn
Technical Support for assistance.
85
Troubleshooting
If you are unable to establish a local management session with the
switch through the RS-232 Terminal Port on the back panel, do the
following:
Check to be sure that the null modem management cable is
securely connected to the RS-232 Terminal Port on the switch and
to the RS-232 port on the terminal or personal computer.
Check to be sure that you are using the null modem management
cable included with the switch.
Check to be sure that the operating parameters on the terminal or
the terminal emulation program, if you are using a personal
computer, have been set correctly. The default settings for the
RS232 Terminal Port can be found in Starting a Local
Management Session on page 78.
If you are managing a switch stack, check to be sure that the null
modem management cable is connected to the master switch,
not a slave switch.
If you have installed an optional redundant power supply, verify that the
RPS LED on the front of the power supply unit is ON. If the LED is OFF,
indicating that the unit is not receiving power, do the following:
Make sure that the power supply unit is securely connected to the
switch.
Make sure that the power cord of the power supply is securely
connected to the power source and to the AC connector on the
back panel of the power supply.
Verify that the power outlet has power by connecting another
device to it.
Try connecting the unit to another power source.
Try using a different power cord.
Check that the voltage from the power source is within the
required levels for your region.
86
If you have installed an expansion module, verify that the LED for the
port is ON. If the LED is OFF, do the following:
Check to make sure that the module is completely seated in the
expansion slot.
AT-8350GB Installation Guide
Check that the fiber optic or twisted pair data cable is securely
connected to the port on the module and to the port on the end
node.
87
Troubleshooting
88
Appendix A
Technical Specifications
Physical Specifications
Dimensions 44 cm x 25.3 cm x 4.1 cm (W x D x H)
(17.32 in. x 9.96 in. x 1.6 in.)
Weight 4.1 kg (9.0 lbs)
Recommended Minimum Ventilation on All Sides 5.08 cm (2.0 in.)
Environmental Specifications
Operating Temperature 0° C to 40° C (32° F to 104° F)
Storage Temperature -20° C to 70° C (-4° F to 158° F)
Operating Humidity 10% to 90% non-condensing
Storage Humidity 10% to 95% non-condensing
Operating Altitude Range Up to 3,000 m (9,843 ft)
Storage Altitude Range Up to 4,570 m (15,000 ft)
Power Specifications
Maximum Power Consumption 41.76 Watts
AC Input Voltage 100-240 VAC
Frequency 50-60 Hz
89
Technical Specifications
Safety and Electromagnetic Emissions Certifications
Safety UL 1950 (UL/cUL), EN60950
EMI FCC Class A, EN55022, CE Class A,
CISPR22 Class A (VCCI), AS/NZS3548
(C-TICK), EN61000-3-2, EN61000-3-3
Immunity EN55024
Quality and Reliability MTBF > 57,000 hrs, Ground benign
environment at 30° C
Standards
IEEE 802.3 (10Base-T Ethernet)
IEEE 802.3u (100Base-TX Ethernet)
IEEE 802.3z (1000Base-X Gigabit Ethernet)
IEEE 802.3ab (1000Base-T Twisted Pair Gigabit Ethernet)
IEEE 802.1d (Spanning Tree)
IEEE 802.1p (Class of Service)
IEEE 802.1q (Virtual LAN tagging)
IEEE 802.3x (Flow Control)
RFC 1112 (IGMP Snooping Version 1.0)
RFC 2236 (IGMP Snooping Version 2.0)
SNMP Support
RFC 1213 (MIB II)
RFC 1493 (Bridge MIB)
RFC 1757 (4-Group RMON)
Allied Telesyn Enterprise MIB
90
Appendix B
Default Switch Settings
This appendix lists the factory default settings for the switch.
Setting Default
IP Address 0.0.0.0
Subnet Mask 0.0.0.0
Gateway Address 0.0.0.0
DHCP Disabled
IGMP Snooping Disabled
System Name None
MAC Aging Time 300 seconds
Spanning Tree Protocol
Status Disabled
Bridge Priority 32768
Bridge Max Age Time 20
Bridge Hello Time 2
Bridge Forwarding Delay 15
Twisted Pair Ports
Status Enabled
Duplex Mode Auto-Negotiate
Speed Auto-Negotiate
Flow Control Enabled
Broadcast Control Disabled
MDI/MDI-X Auto
Security Normal
Port Monitoring Disabled
Port Trunking Disabled
91
Default Switch Settings
Setting Default
Ports 49 and 50
Port Type (GBIC or Twisted Pair) Twisted Pair
VLANs
Port-based and Tagged VLANs Enabled
Default VLAN Name Default VLAN (all ports)
VID 1
RS-232 Terminal Port
Emulation Mode VT100
Data Bits 8
Stop Bits 1
Parity None
Flow Control None
Data Rate 9600 bps
Key Mode Terminal
Software Management Access
Login Name manager
Login Password manager
92
Appendix C
Translated Electrical Safety and Emission Information
Important: This appendix contains multiple-language translations for
the safety statements in this guide.
Wichtig: Dieser Anhang enthält Übersetzungen der in diesem
Handbuch enthaltenen Sicherheitshinweise in mehreren Sprachen.
Vigtigt: Dette tillæg indeholder oversættelser i flere sprog af
sikkerhedsadvarslerne i denne håndbog.
Belangrijk: Deze appendix bevat vertalingen in meerdere talen van de
veiligheidsopmerkingen in deze gids.
Important: Cette annexe contient la traduction en plusieurs langues des
instructions de sécurité figurant dans ce guide.
Tärkeää: Tämä liite sisältää tässä oppaassa esiintyvät turvaohjeet usealla
kielellä.
Importante: questa appendice contiene traduzioni in più lingue degli
avvisi di sicurezza di questa guida.
Viktig: Dette tillegget inneholder oversettelser til flere språk av
sikkerhetsinformasjonen i denne veiledningen.
Importante: Este anexo contém traduções em vários idiomas das
advertências de segurança neste guia.
Importante: Este apéndice contiene traducciones en múltiples idiomas
de los mensajes de seguridad incluidos en esta guía.
Obs! Denna bilaga innehåller flerspråkiga översättningar av
säkerhetsmeddelandena i denna handledning.
93
Translated Electrical Safety and Emission Information
Standards: This product meets the following safety 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.
1 RFI Emission FCC Class A, EN55022 Class A, CISPR22
Class A (VCCI), AS/NZS3548 (C-TICK),
EN61000-3-2, EN61000-3-3
2 WARNING: In a domestic environment this product may cause radio interference in
which case the user may be required to take adequate measures.
3 Immunity EN55024
4 Electrical Safety UL 1950 (UL/cUL), EN60950
5 Laser EN60825
SAFETY
6 WARNING: Class 1 Laser product.
7 WARNING: Do not stare into the laser beam.
8 ELECTRICAL NOTICES
WARNING: ELECTRIC SHOCK HAZARD
To prevent ELECTRIC shock , do not remove the 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.
9 LIGHTNING DANGER
DANGER: DO NOT WORK on equipment or CABLES during periods of LIGHTNING
ACTIVITY.
94
10 CAUTION: POWER CORD IS USED AS A DISCONNECTION DEVICE. TO DE-ENERGIZE
EQUIPMENT, disconnect the power cord.
11 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.
AT-8350 Installation Guide
12 PLUGGABLE EQUIPMENT, the socket outlet shall be installed near the equipment and
shall be easily accessible.
13 CAUTION: Air vents must not be blocked and must have free access to the room
ambient air for cooling.
14 OPERATING TEMPERATURE: This product is designed for a maximum ambient
temperature of 40° degrees C.
15 ALL COUNTRIES: Install product in accordance with local and National Electrical
Codes.
Normen: Dieses Produkt erfüllt die Anforderungen der nachfolgenden Normen.
1 Hochfrequenzstörung FCC Klasse A, EN55022 Klasse A,
CISPR22 Class A (VCCI), AS/NZS3548
(C-TICK), EN61000-3-2, EN61000-3-3
2 WARNUNG: Bei Verwendung zu Hause kann dieses Produkt Funkstörungen
hervorrufen. In diesem Fall müßte der Anwender angemessene Gegenmaßnahmen
ergreifen.
3 Störsicherheit EN55024
4 Elektrische Sicherheit UL 1950 (UL/cUL), EN60950
5 Laser EN60825
SICHERHEIT
6 WARNUNG Laserprodukt der Klasse 1.
7 WARNUNG Nicht direkt in den Strahl blicken.
8 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.
9 GEFAHR DURCH BLITZSCHLAG
GEFAHR: Keine Arbeiten am Gerät oder an den Kabeln während eines Gewitters
ausführen.
10 VORSICHT: DAS NETZKABEL DIENT ZUM TRENNEN DER STROMVERSORGUNG. ZUR
TRENNUNG VOM NETZ, KABEL AUS DER STECKDOSE ZIEHEN.
11 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.
12 STECKBARES GERÄT: Die Anschlußbuchse sollte in der Nähe der Einrichtung
angebracht werden und leicht zugänglich sein."
13 VORSICHT
Die Entlüftungsöffnungen dürfen nicht versperrt sein und müssen zum Kühlen freien
Zugang zur Raumluft haben.
14 BETRIEBSTEMPERATUR: Dieses Produkt wurde für den Betrieb in einer
Umgebungstemperatur von nicht mehr als 40° C entworfen.
15 ALLE LÄNDER: Installation muß örtlichen und nationalen elektrischen Vorschriften
entsprechen.
95
Translated Electrical Safety and Emission Information
1 Radiofrekvens forstyrrelsesemission FCC Klasse A, EN55022 Klasse A,
2 ADVARSEL: I et hjemligt miljø kunne dette produkt forårsage radio forstyrrelse.
3 Immunitet EN55024
4 Elektrisk sikkerhed UL 1950 (UL/cUL), EN60950
5 Laser EN60825
6 ADVARSEL Laserprodukt av klasse 1.
7 ADVARSEL Stirr ikke på strålen.
8 ELEKTRISKE FORHOLDSREGLER
Standarder: Dette produkt tilfredsstiller de følgende standarder.
CISPR22 Class A (VCCI), AS/NZS3548
(C-TICK), EN61000-3-2, EN61000-3-3
Bliver det tilfældet, påkræves brugeren muligvis at tage tilstrækkelige
foranstaltninger.
SIKKERHED
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.
9 FARE UNDER UVEJR
FARE: UNDLAD at arbejde på udstyr eller KABLER i perioder med LYNAKTIVITET.
10 ADVARSEL: DEN STRØMFØRENDE LEDNING BRUGES TIL AT AFBRYDE STRØMMEN.
SKAL STRØMMEN TIL APPARATET AFBRYDES, tages ledningen ud af stikket.
11 ELEKTRISK - KLASSE 1-UDSTYR
DETTE UDSTYR KRÆVER JORDFORBINDELSE. Stikket skal være forbundet med en
korrekt installeret jordforbunden stikkontakt. En ukorrekt installeret stikkontakt kan
sætte livsfarlig spænding til tilgængelige metaldele.
12 UDSTYR TIL STIKKONTAKT, stikkontakten bør installeres nær ved udstyret og skal
være lettilgængelig.
13 ADVARSEL: Ventilationsåbninger må ikke blokeres og skal have fri adgang til den
omgivende luft i rummet for afkøling.
14 BETJENINGSTEMPERATUR: Dette apparat er konstrueret til en omgivende
temperatur på maksimum 40 grader C.
15 ALLE LANDE: Installation af produktet skal ske i overensstemmelse med lokal og
national lovgivning for elektriske installationer.
96
AT-8350 Installation Guide
Eisen: Dit product voldoet aan de volgende eisen.
1 RFI Emissie FCC Klasse A, EN55022 Klasse A,
CISPR22 Class A (VCCI), AS/NZS3548
(C-TICK), EN61000-3-2, EN61000-3-3
2 WAARSCHUWING: Binnenshuis kan dit product radiostoring veroorzaken, in welk
geval de gebruiker verplicht kan worden om gepaste maatregelen te nemen.
3 Immuniteit EN55024
4 Electrische Veiligheid UL 1950 (UL/cUL), EN60950
5 Laser EN60825
VEILIGHEID
6 WAARSHUWING Klasse-1 laser produkt.
7 WAARCHUWING Neit in de straal staren.
8 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.
9 GEVAAR VOOR BLIKSEMINSLAG
GEVAAR: NIET aan toestellen of KABELS WERKEN bij BLIKSEM.
10 WAARSCHUWING: HET TOESTEL WORDT UITGESCHAKELD DOOR DE
STROOMKABEL TE ONTKOPPELEN.OM HET TOESTEL STROOMLOOS TE MAKEN: de
stroomkabel ontkoppelen.
11 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.
12 AAN TE SLUITEN APPARATUUR, de contactdoos wordt in de nabijheid van de
apparatuur geïnstalleerd en is gemakkelijk te bereiken."
13 OPGELET: De ventilatiegaten mogen niet worden gesperd en moeten de
omgevingslucht ongehinderd toelaten voor afkoeling.
14 BEDRIJFSTEMPERATUUR: De omgevingstemperatuur voor dit produkt mag niet
meer bedragen dan 40 graden Celsius.
15 ALLE LANDEN: het toestel installeren overeenkomstig de lokale en nationale
elektrische voorschriften.
97
Translated Electrical Safety and Emission Information
1 Emission d’interférences radioélectriques FCC Classe A, EN55022 Classe A,
2 MISE EN GARDE : dans un environnement domestique, ce produit peut provoquer
3 Immunité EN55024
4 Sécurité électrique UL 1950 (UL/cUL), EN60950
5 Laser EN60825
6 ATTENTION Producit laser di classe 1.
7 ATTENTION Ne pas fixer le faisceau des yeux.
8 INFORMATION SUR LES RISQUES ÉLECTRIQUES
Normes: ce produit est conforme aux normes de suivantes:
CISPR22 Class A (VCCI), AS/NZS3548
(C-TICK), EN61000-3-2, EN61000-3-3
des interférences radioélectriques. Auquel cas, l’utilisateur devra prendre les
mesures adéquates.
SÉCURITÉ
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.
9 DANGER DE FOUDRE
DANGER: NE PAS MANIER le matériel ou les CÂBLES lors d’activité orageuse.
10 ATTENTION: LE CORDON D’ALIMENTATION SERT DE MISE HORS CIRCUIT. POUR
COUPER L’ALIMENTATION DU MATÉRIEL, débrancher le cordon.
11 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.
12 EQUIPEMENT POUR BRANCHEMENT ELECTRIQUE, la prise de sortie doit être placée
près de l’équipement et facilement accessible".
13 ATTENTION: Ne pas bloquer les fentes d’aération, ceci empêcherait l’air ambiant de
circuler librement pour le refroidissement.
14 TEMPÉRATURE DE FONCTIONNEMENT: Ce matériel est capable de tolérer une
température ambiante maximum de ou 40 degrés Celsius.
15 POUR TOUS PAYS: Installer le matériel conformément aux normes électriques
nationales et locales.
98
AT-8350 Installation Guide
Standardit: Tämä tuote on seuraavien standardien mukainen.
1 Radioaaltojen häirintä FCC Luokka A, EN55022 Luokka A,
CISPR22 Class A (VCCI), AS/NZS3548
(C-TICK), EN61000-3-2, EN61000-3-3
2 VAROITUS: Kotiolosuhteissa tämä laite voi aiheuttaa radioaaltojen häiröitä, missä
tapauksessa laitteen käyttäjän on mahdollisesti ryhdyttävä tarpeellisiin
toimenpiteisiin.
3 Kestävyys EN55024
4 Sähköturvallisuus UL 1950 (UL/cUL), EN60950
5 Laser EN60825
TURVALLISUUS
6 VAROITUS Luokan 1 Lasertuote.
7 VARIOTUS Älä katso säteeseen.
8 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.
9 SALAMANISKUVAARA
HENGENVAARA: ÄLÄ TYÖSKENTELE laitteiden tai KAAPELEIDEN KANSSA
SALAMOINNIN AIKANA.
10 HUOMAUTUS: VIRTAJOHTOA KÄYTETÄÄN VIRRANKATKAISULAITTEENA. VIRTA
KATKAISTAAN irrottamalla virtajohto.
11 SÄHKÖ - TYYPPILUOKAN 1 LAITTEET
TÄMÄ LAITE TÄYTYY MAADOITTAA. Pistoke täytyy liittää kunnollisesti
maadoitettuun pistorasiaan. Virheellisesti johdotettu pistorasia voi altistaa
metalliosat vaarallisille jännitteille.
12 PISTORASIAAN KYTKETTÄVÄ LAITE; pistorasia on asennettava laitteen lähelle ja
siihen on oltava esteetön pääsy."
13 HUOMAUTUS: Ilmavaihtoreikiä ei pidä tukkia ja niillä täytyy olla vapaa yhteys
ympäröivään huoneilmaan, jotta ilmanvaihto tapahtuisi.
14 KÄYTTÖLÄMPÖTILA: Tämä tuote on suunniteltu ympäröivän ilman
maksimilämpötilalle 40°C.
15 KAIKKI MAAT: Asenna tuote paikallisten ja kansallisten
sähköturvallisuusmääräysten mukaisesti.
99
Translated Electrical Safety and Emission Information
1 Emissione RFI (interferenza di radiofrequenza) FCC Classe A, EN55022 Classe A,
2 AVVERTENZA: in ambiente domestico questo prodotto potrebbe causare radio
3 Immunità EN55024
4 Sicurezza elettrica UL 1950 (UL/cUL), EN60950
5 Laser EN60825
6 AVVERTENZA Prodotto laser di Classe 1.
7 AVERTENZA Non fissare il raggio con gli occhi.
8 AVVERTENZE ELETTRICHE
Standard: Questo prodotto è conforme ai seguenti standard.
CISPR22 Class A (VCCI), AS/
NZS3548 (C-TICK), EN61000-3-2,
EN61000-3-3
interferenza. In questo caso potrebbe richiedersi all’utente di prendere gli adeguati
provvedimenti.
NORME DI SICUREZZA
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 specializzato e qualificato. Per evitare ogni possibilità di
SCOSSE ELETTRICHE, interrompere l’alimentazione del dispositivo prima di collegare
o staccare i cavi LAN.
9 PERICOLO DI FULMINI
PERICOLO: NON LAVORARE sul dispositivo o sui CAVI durante PRECIPITAZIONI
TEMPORALESCHE.
10 ATTENZIONE: IL CAVO DI ALIMENTAZIONE È USATO COME DISPOSITIVO DI
DISATTIVAZIONE. PER TOGLIERE LA CORRENTE AL DISPOSITIVO staccare il cavo di
alimentazione.
11 ELETTRICITÀ - DISPOSITIVI DI CLASSE 1
QUESTO DISPOSITIVO DEVE AVERE LA MESSA A TERRA. La spina deve essere inserita
in una presa di corrente specificamente dotata di messa a terra. Una presa non
cablata in maniera corretta rischia di scaricare una tensione pericolosa su parti
metalliche accessibili.
12 APPARECCHIATURA COLLEGABILE, la presa va installata vicino all’apparecchio per
risultare facilmente accessibile".
13 ATTENZIONE: le prese d’aria non vanno ostruite e devono consentire il libero
ricircolo dell’aria ambiente per il raffreddamento.
14 TEMPERATURA DI FUNZIONAMENTO: Questo prodotto è concepito per una
temperatura ambientale massima di 40 gradi centigradi.
15 TUTTI I PAESI: installare il prodotto in conformità delle vigenti normative elettriche
nazionali.
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