Allied Telesis AT-8350GB User Manual
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
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