Allied Telesis AT-8800 Series Application guide

AT-8800 Series Switch
Hardware Reference
AT-8824
AT-8848

AT-8800 Series Hardware Reference
Document Number C613-03066-00 REV F.
© 2003-2006 Allied Telesis Inc. All rights reserved. No part of this publication may be
reproduced without prior written permission from Allied Telesis Inc.
Allied Telesis Inc. reserves the right to change specifications and other information in
this document without prior written notice. The information provided herein is subject
to change without notice. In no event shall Allied Telesis Inc. be liable for any incidental,
special, indirect, or consequential damages whatsoever, including but not limited to lost
profits, arising out of or related to this manual or the information contained herein, even
if Allied Telesis Inc. has been advised of, known, or should have known, the possibility
of such damages.
All company names, logos, and product designs that are trademarks or registered
trademarks are the property of their respective owners.

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Contents
Models Covered By This Reference .................................................................... 4
Why You Should Read This Reference ............................................................... 4
Hardware Description ....................................................................................... 5
Switch Overview ......................................................................................... 5
AT-8800 Series Switch Models .................................................................... 7
AT-8824 ..................................................................................................... 7
AT-8848 ..................................................................................................... 7
Online Documentation ...................................................................................... 8
Accessing the CD-ROM and Online Documentation .................................... 8
AT-TFTP Server ................................................................................................... 8
Using Windows Terminal and Hyperterminal ................................................... 10
Switch Start-up ............................................................................................... 13
To log In ................................................................................................... 13
To access help .......................................................................................... 14
Start-up Procedures .................................................................................. 14
RS-232 Terminal Port (ASYN0) ......................................................................... 17
Useful Cables .................................................................................................. 18
RS-232 Terminal and Modem Cables ........................................................ 18
Cables for RJ-45 Ethernet LAN Interfaces .................................................. 19
Test Facility ..................................................................................................... 21
Ethernet LAN Port Tests ............................................................................ 22
Other Interface Tests ................................................................................. 23
Redundant Power Supply (RPS) ....................................................................... 23
AT-RPS8000 .............................................................................................. 24
Port, Connector, and Cable Combinations ...................................................... 26
Troubleshooting .............................................................................................. 26
LEDs and What They Mean ....................................................................... 26
Check these first ...................................................................................... 27
Some common problems and how to solve them ..................................... 28
Expansion Options .......................................................................................... 29
Gigabit Interface Converters (GBICs) ......................................................... 29
Dual In-line Memory Modules (DIMMs) ..................................................... 30
Where To Find More Information .................................................................... 31
Contacting Us ................................................................................................. 31

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Models Covered By This Reference
This Hardware Reference includes information on the following products:
■AT-8824
■AT-8848
The latest AT-8800 Series Hardware Reference can be found at
www.alliedtelesis.com/support/software
Why You Should Read This Reference
This Reference provides hardware related information for AT-8800 Series
switches.
The Reference has two primary aims:
1. To familiarise you with the hardware features of AT-8800 Series switches.
2. To assist you with setting up and maintaining your AT-8800 Series switch.
This Reference does not cover software configuration or software installation
procedures. For information on software, refer to the AT-8800 Series Software Reference.
AT-8800 Series
Printed Acrobat PDF Website
Documentation Roadmap
AT-8800 Series Safety and Statutory Information Booklet
AT-8800 Series Software Reference
AT-8800 Series Hardware Reference
General Customer Support
Visit www.alliedtelesyn.co.nz for
the latest documentation, FAQs,
and support information.
AT-8800 Series Quick Install Guide

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Hardware Description
This section provides an overview of hardware features for the AT-8800 Series,
as well as hardware descriptions of each model.
Switch Overview
Developed to meet the exceptionally high performance demands of low to
mid-range applications, AT-8800 Series switches deliver hardware-based low-
latency high-bandwidth wire speed Layer 2 and 3 switching, in a robust 1U
platform.
With GBIC and 10/100BASE RJ-45 port options bridging traditional copper/
fibre divides, and hardware expansion options such as Dual In-line Memory
Modules (DIMMs), the AT-8800 Series is a versatile and powerful switching
solution for rapidly evolving networks.
Dimensions
Mounting System
•1Urackmounting
Environmental Conditions
• Operating temperature range: 0 to 50º C (32 to 122º F)
• Storage temperature range: -20 to 60º C (-4 to 140º F)
• Relative humidity range: 5 to 95% non-condensing
Regulatory Standards
AC models
• AS/NZS3260
• CNS 13438 Class A
•BSMI
• VCCI Class A
• EMC: EN55022 class A, FCC class A, and VCCI class I
• Immunity testing to EN55024: EN61000-3 levels 2 (Harmonics), and 3
(Flicker). EN61000-4 levels 2 (ESD), 3 (susceptibility), 4 (fast transients),
5 (power surge), 6 (RF immunity), and 11 (Voltage dips and sags).
• Safety: UL60950, CAN/CSA-C22.2 NO. 60950-00, EN60950, ACA TS001
• Certification: UL, cUL, TUV
Table 1: Dimensions for AT-8824 and AT-8848.
AT-8824 and AT-8848
Height 1U - 44 mm (plus 5.5 mm if the rubber feet are used).
Width 440 mm (excluding rack-mounting brackets).
Depth 350 mm.
Weight Not more than 6 kg excluding power cord.

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LEDs
• Port and System status LEDs
• For a complete list of LEDs and their functions, see “LEDs and What
They Mean” on page 26.
Power Supply Unit
AC models
• Universal 100/240 VAC 50/60 Hz input
• Redundant DC Power connection
Maximum Current Loads
AC models
• Maximum continuous current draw, 0.7A at 240V, 1.5A at 100V
•Maximuminrushcurrent(coldstart at 25º C/77º F), 50A at 115V
Switching Cores
• Application-Specific Integrated Circuit (ASIC) switch chip
• Non-blocking L2 and L3 IP Switching
• 8 k entry forwarding address database
• 32 MByte SDRAM packet buffer
Processing Core
• 400 MHz RISC Processor
• 64, 128 or 256 MBytes Synchronous DRAM on DIMM
• 16 MBytes of fixed flash (expandable to 32 MBytes)
• 256 kBytes of SRAM (NVS)
• Battery backed real time clock (RTC)
• 32-bit/33 MHz PCI bus
• Silicon ID chip storing serial number, board ID, and MAC address
Asynchronous Serial Port
•Upto115kbps
• Hardware-flow control
•RJ-45withCiscopinout
• RJ-45 cable and RJ-45 to DB9 adapter supplied
PCI Accelerator Card (PAC) Slot
• For optional 32-bit PCI based hardware Encryption and/or
Compression Card, a PAC interface connection is provided

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AT-8800 Series Switch Models
This section provides hardware descriptions for the individual switch models.
AT-8824
(Front Panel Figure 1, Rear Panel Figure 3)
• 24-port 10BASE-T/100BASE-TX (RJ-45 connectors)
• 2-port 1000BASE-X (GBIC slots)
• Unrestricted 1000BASE-T GBIC use
• One DIMM socket for expansion of Synchronous DRAM to 256MB
• Compatible with AT-RPS8000 systems
• Auto-negotiating Layer 3 Managed Switch
Figure 1: Front panel of the AT-8824.
AT-8848
(Front Panel Figure 2, Rear Panel Figure 3)
• 48-port 10BASE-T/100BASE-TX (RJ-45 connectors)
• 2-port 1000BASE-X (GBIC slots)
• Unrestricted 1000BASE-T GBIC use
• One DIMM socket for expansion of Synchronous DRAM to 256MB
• Compatible with AT-RPS8000 systems
• Auto-negotiating Layer 3 Managed Switch
Figure 2: Front panel of the AT-8848.
Figure 3: Rear panel of the AT-8800 series switches.
25
26
25
26
LINK
ACT
L/A
L/A GBIC
ENABLED
FAULT
GBIC
GBIC
AT-8824
Intelligent Workgroup Switch
RESET
ASYN0
FAULT PW RRPS
1 3 5 7
2 4 6 8
D/CL/A
9 11 13 15
10 12 14 16
D/CL/A
17 19 21 23
18 20 22 24
D/CL/A
PORT ACTIVITY
D/C
L/A
LINK 100M ACT
LINK 10M ACT
FULL DUP
HALF DUP COL
49
50
49
50
LINK
ACT
L/A
L/A GBIC
ENABLED
FAULT
GBIC
GBIC
D/CL/A
LINK 100M ACT LINK 10M ACT
L/A
FULL DUP HALF DUP COL
PORT ACTIVITY
AT-8848
Intelligent Workgroup Switch
RESET
ASYN0
FAULT PWRRPS
33 35 37 39 41 43 45 47
34 36 38 40 42 44 46 48
1 3 5 7 9 11 13 15
2 4 6 8 10 12 14 16
17 19 21 23 25 27 29 31
18 20 22 24 26 28 30 32
D/CL/AL/A D/CL/AL/A D/CL/A

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Online Documentation
This section provides a step-by-step guide to accessing online documentation.
Adobe Acrobat Reader must be installed to view online documentation.
Accessing the CD-ROM and Online Documentation
Follow these steps to access the CD-ROM and online documentation:
1. Insert the Documentation and Tools CD-ROM in the CD-ROM drive.
2. If the CD-ROM browser does not appear.
Select "Run" from the Start Menu (Windows 95, 98, 2000 or NT 4.0).
Type d:\start.exe (where d: is the CD-ROM drive letter) and click OK.
3. To view a document.
Click on the document title.
4. To navigate around PDF documents.
Use the toolbar buttons, keyboard shortcuts, or commands from the
Document menu to page through the document.
Click on a bookmark, thumbnail or hypertext link to jump to a specific
section or topic.
Use the Search command to search for keywords or phrases.
For more information about using the Adobe Acrobat Reader, select
"Reader Guide" from the Help menu.
5. To install any of the tools included on the CD-ROM.
Click on a link in the CD browser.
AT-TFTP Server
This section provides information on how to access and use AT-TFTP Server.
AT-TFTP Server can be used to transfer configuration files as well as to
download software patches and releases.
To use AT-TFTP Server, follow these steps:
1. If AT-TFTP Server has not yet been installed.
Install it now from the AT-8800 Series Documentation and Tools CD-ROM.
Choose AT-TFTP Server from the Start > Programs > Allied Telesis >
AT-TFTP Server menu.
2. To set preferences for the AT-TFTP Server.
Select "Options" from the File menu to display the "Set Preferences" dialog
box.
The "Default file transfer directory" field specifies the directory that AT-
TFTP Server will read from or write to for file requests that do not include a
directory specification.

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To prevent unauthorised access to private directories, enter a path name in
the "Restrict to directory" field. AT-TFTP Server will use only the specified
directory, even if file requests contain references to other directories.
Select "Read only" to prevent files being written to the PC. To use the PC to
archive scripts created using the switch's CREATE CONFIG command,
select "Read Write".
Make any required changes and click "OK".
3. To load a file from AT-TFTP Server to the Switch.
On a terminal connected to the RS-232 Terminal Port (ASYN0), type the
command:
LOAD METHOD=TFTP FILE=filename SERVER=ipadd DEST=FLASH
where filename is the name of the file to download and ipadd is the IP
address of the PC running AT-TFTP Server.
4. To save a TFTP Server log.
Select "Save As" from the File menu.
TFTP requests are logged to the AT-TFTP Server main window.

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Using Windows Terminal and
Hyperterminal
You can use a PC running terminal emulation software as the manager console,
instead of a terminal. There are many terminal emulation applications
available for PCs, but the most readily available are the Terminal and
HyperTerminal applications included in Microsoft Windows 98, 2000, and
XP Professional. In standard Windows installations, HyperTerminal is
available from the Communications submenu.
The key to successful use of terminal emulation software with the switch is to
configure the software and switch with matching communications parameters.
The following procedure can be applied to most terminal emulation programs.
Dialog boxes in the procedure are from Windows 2000 and XP Professional.
To configure Windows HyperTerminal for 2000 and XP Professional
1. Start the program in Windows by doing one of the following:
• Select Programs > Accessories > Communications > HyperTerminal.
• Double-click the Hypertrm.exe icon.
2. In the Connection Description dialog box:
• Enter a name for the connection, such as Admin.
• Select an icon from the scrollable list and click the OK button.