AT-8900 SERIES HARDWARE REFERENCE
AT-8900 Series Hardware Reference Document Number C613-03075-00 REV A. Copyright © 2003 Allied Telesyn International, Corp. 18900 North Creek Parkway, Suite 200, Bothell, WA 98011, USA. All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesyn. Allied Telesyn International, Corp. reserves the right to make changes in specifications and other information contained in this document without prior written notice.
Contents Contents .......................................................................................................... 1 Models Covered By This Reference .................................................................... 2 Why You Should Read This Reference ............................................................... 2 Where To Find More Information ...................................................................... 3 Hardware Description .......................................................
2 AT-8900 Series Switch Documentation Roadmap AT-PWR01 AT-8900 Series Safety and Statutory Information AT-8900 Series Safety and Statutory Information Booklet Quick Install Guide AT-8900 Series Quick Install Guide General Customer Support AT-8900 Series Software Reference AT-8900 Series Hardware Reference Printed Acrobat PDF Visit www.alliedtelesyn.co.nz for the latest documentation, FAQs, and support information.
Hardware Reference 3 Where To Find More Information The Documentation and Tools CD-ROM bundled with each switch contains the complete Document Set for AT-8900 Series switches and their power supply units, as well as tools for switch management. This includes the following: ■ The AT-8900 Series Statutory and Safety Information booklet, which provides safety and statutory information for the AT-8900 switch.
4 AT-8900 Series Switch Mounting System • 1U rack mounting Environmental Conditions • Operating temperature range: 0 to 50º C (32 to 122º F) • Storage temperature range: -25 to 75º C (-13 to 167º F) • Relative humidity range: 5 to 95% non-condensing • Operational altitude: 3,050 metres maximum (10,000 feet) Regulatory Standards AC models • EMC: EN55022 class A, FCC class A, and VCCI class A • EN61000-3 levels 2 (Harmonics), and 3 (Flicker) • Immunity testing to EN55024 • Safety: UL60950,
Hardware Reference 5 Switching Core • Application-Specific Integrated Circuit (ASIC) switch chip • Non-blocking L2 and L3 IP Switching • 256K IPv4 address table • 4K multicast table • 4K logical Layer 3 interfaces • Shared 32 MByte DDR-SDRAM packet buffer Processing Core • 400 MHz RISC Processor • 128 MBytes Synchronous DRAM (expandable to 256 MByte or 512 MByte with DIMM) • 32 MBytes of fixed flash • Compact flash socket for hot swappable expansion of flash memory up to 128 MBytes •
6 AT-8900 Series Switch Figure 1: Front and rear panels of the AT-8948.
Hardware Reference 7 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-8900 Series Documentation and Tools CD-ROM. Choose AT-TFTP Server from the Start > Programs > Allied Telesyn > AT-TFTP Server menu. 2.
8 AT-8900 Series Switch 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. Using Windows Terminal and Windows 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 95, 98, 2000, and Windows NT 4.
Hardware Reference 9 4. 5. In the COMn Properties dialog box, set: • Bits per second: 9600. • Data bits: 8. • Parity: None. • Stop bits: 1. • Flow control: Hardware. • Click “OK”. From the File menu, select: • “Properties” In the Connection Properties dialog box, click the Settings tab and set: C613-03075-00 REV A • “Function, arrow, and ctrl keys act as” to “Terminal keys” • “Emulation” to VT100.
10 AT-8900 Series Switch 6. Click “ASCII Setup” to display the ASCII Setup dialog box. Uncheck: • “Echo typed characters locally”. • “Append line feeds to incoming line ends”. Set other parameters as required. • 7. Click “OK” twice to close all dialog boxes. Save the current session. From the File menu, select: • “Save”. This creates a connection icon with the name you assigned in the HyperTerminal group. To use the configuration: • Double-click the connection icon in the HyperTerminal group.
Hardware Reference 11 Switch Start-up This section outlines the log in and start-up procedures for your switch. Although the switch will perform basic switching operations without being configured, you will need to go through these log in and start-up procedures if you wish to configure the switch and access its full layer 3 switching capabilities.
12 AT-8900 Series Switch See the AT-8900 Series Software Reference for more information on configuring the switch. To access help Before help is used for the first time, the help files must be defined. To define the files, enter: set help=help-filename where help-filename is the name of a help file stored in flash. To see a list of files stored in flash, enter: show file Help files have an HLP extension.
Hardware Reference 13 Table 1: Switch start-up sequence keystrokes. Pressing key... Forces the switch to... [Y] Load the EPROM release, with no patch. [S] Start with the default configuration. Any boot script is ignored. [Ctrl/D] Enter diagnostics mode. During the start-up process the switch will generate four different types of messages. All messages are preceded by one of the words INFO, PASS, FAIL, or ERROR. The significance of these words is shown in Table 2 on page 13.
14 AT-8900 Series Switch FAIL: BBR test. Error address = 12345678. The BBR size/location test failed at the given location. The test at this location failed, indicating the end of memory, but a valid location was discovered in the 255 long words following this location. The BBR system will need to be replaced. Contact your Authorised Allied Telesyn distributor or reseller. FAIL: BBR test, only 16k bytes found. The BBR size/location test completed, but only the displayed amount of memory was found.
Hardware Reference 15 RS-232 Terminal Port (ASYN0) This section introduces the switch’s RS-232 Terminal Port (ASYN0), including its pin assignment and purpose. The RS-232 ASYN0 Terminal Port is used to connect the switch to a management device for initial configuration and switch management tasks. This allows the switch’s software to be accessed from a terminal, or a PC running terminal emulation software. You can also use ASYN0 to establish a network connection from a remote site using SLIP and a modem.
16 AT-8900 Series Switch Useful Cables This section describes how to make management, test, and network cables for use with the switch’s RS-232 (ASYN0) and RJ-45 interfaces. RS-232 Terminal and Modem Cables The list of terminal and modem cables described in this section is shown in Table 4 on page 16. Table 4: Terminal and modem cable descriptions.
Hardware Reference 17 Figure 5: Pin wiring diagram for a DCE RS-232 Terminal Port (DB9 male connector) male to male modem cable.
18 AT-8900 Series Switch Pin assignments For twisted pair cables each pair is identified by two different colours. For example, one wire might be red, and the other red with a white stripe. An RJ-45 connector must be fitted to both ends of the cable. Figure 6 on page 18 illustrates the pin layout for RJ-45 connectors. Figure 6: RJ-45 Pin layout.
Hardware Reference 19 Table 7: Pin assignments, 10/100/1000BASE-T RJ-45 four pair crossover cable . End 1 End 2 Pin Pair Pin Pair 1 Pair 1+ 1 Pair 2+ 2 Pair 1- 2 Pair 2- 3 Pair 2+ 3 Pair 1+ 6 Pair 2- 6 Pair 1- 4 Pair 3+ 4 Pair 4+ 5 Pair 3- 5 Pair 4- 7 Pair 4+ 7 Pair 3+ 8 Pair 4- 8 Pair 3- Test Facility This section introduces the Test Facility. The Test Facility is built into all AT-8900 Series software.
20 AT-8900 Series Switch Figure 7: Example output from the SHOW TEST command . Board ID Bay Board Name Rev Serial number ---------------------------------------------------------------------------Base 201 AT-8948 P3-1 58364519 Duration Details Interface State Result Type (minutes) Data( %OK ) Control ---------------------------------------------------------------------------port1 no test port2 no test port3 no test port4 no test port5 complete good ALL 1 good(100.
Hardware Reference 21 Figure 7: Example output from the SHOW TEST command (Continued). port47 port48 port49 port50 port51 port52 no no no no no no test test test test test test - - - - - - asyn0 no test -------------------------------------------------------------------------------- Figure 8: Example output for the SHOW TEST COUNT command .
22 AT-8900 Series Switch Figure 8: Example output for the SHOW TEST COUNT command (Continued).
Hardware Reference 23 Power Supply Units (PSUs) At the rear of the AT-8900 Series switch chassis there are two power supply bays. AT-8900 Series switches allow for either one or two power supplies to be fitted (see Figure 9 on page 23). PSUs are hot-swappable and when two PSUs are fitted in a AT-8900 Series switch they will load share. PSUs contain fans needed to cool the AT-8900 Series switch. If only one power supply is fitted, a fan only module (FOM) must be fitted in the second power supply bay.
24 AT-8900 Series Switch Dimensions • Height: 40.9 mm • Width: 193 mm • Depth: 130 mm See the AT-PWR01 Quick Install Guide for information about Power Supply Unit and Fan Only Module installation procedures. Port, Connector, and Cable Combinations This section provides cabling guidelines for each switch model. Table 8: Cable guidelines for AT-8900 Series switches.
Hardware Reference 25 System LEDs Table 9: System LEDs found on all AT-8900 Series Switches. LED State Function PSU 1 Green PSU 1 is installed and supplying power to the switch, and voltage output is within specification. Red PSU 1 is installed in the switch and a fan has failed, or the PSU has exceeded the recommend temperature threshold of 75º C (167º F). A FOM is installed in the switch and a fan has failed. PSU 2 Not lit A FOM is installed and fan is good, or the bay is empty.
26 AT-8900 Series Switch Table 11: 10/100BASE-T Port LEDs on the AT-8948. LED State Function L/A Green A 100 Mbps link is open. Flashing green 100 Mbps activity is occurring. Amber A 10 Mbps link is open. Flashing amber 10 Mbps activity is occurring.. Green The port is operating in full duplex mode. Amber The port is operating in half duplex mode. Flashing amber Collisions are occurring.
Hardware Reference 27 Some common problems and how to solve them Link/Activity LED on any port is off This can indicate: ■ A loose data cable. ■ The device at the other end of the connection is not working properly or is turned off. ■ The data cable is not wired correctly. ■ The network administrator has manually disabled the port through the software. ■ The port’s selected transmission mode does not match that of the attached device. Perform the following steps in sequence: 1.
28 AT-8900 Series Switch Fault LED is on This can indicate: ■ There is a problem with the switch. ■ The switch or management software is malfunctioning. ■ A hardware fault is preventing switch start-up. Perform the following steps in sequence: 1. Check “LEDs and What They Mean” on page 24 for descriptions and explanations of LED flashing sequences. 2. Reset the switch by pressing the recessed RESET button on the front panel. 3.
Hardware Reference 29 Installing and removing a SFP transceiver Invisible laser radiation from disconnected fibres or connectors may be emitted. Do not look into SFP cables or transceivers.
30 AT-8900 Series Switch The following compact flash cards have been approved for use with the AT-8900 Series switch: ■ AT-CF032A-nnn 32MB CompactFlash card ■ AT-CF128A-nnn 128MB CompactFlash card Where n is the number of cards in a package, less than 1000. A package containing one card is 001. For the latest list of approved compact flash cards, visit http:// www.alliedtelesyn.co.nz/support/at8900.
Hardware Reference 31 Figure 11: Output from the SHOW CFLASH TEST command, when no test is running. Clusters available for testing Ranges: [42645--61944] Number of free clusters Number of ranges Number of used clusters = 19300 = 1 = 42645 To test a card, insert the card and enter: ENABLE CFLASH TEST START=startnumber END=endnumber where startnumber and endnumber are positive integers within a cluster range. The endnumber must be higher than the startnumber.
32 AT-8900 Series Switch Dual In-line Memory Modules (DIMMs) Synchronous DRAM for AT-8900 Series switches is provided by a single DIMM. The following DIMM have been approved for use with the AT-8900 Series switch: ■ AT-SD128A-00 128MB SDRAM (installed at factory) ■ AT-SD256A-00 256MB SDRAM (upgrade) ■ AT-SD512A-00 512MB SDRAM (upgrade) Only Allied Telesyn supplied DIMMS have been tested and approved for use with AT-8900 Series switches.
Hardware Reference 33 For AT-8900 Series switches, DIMM should only be installed by authorised service personnel. Unauthorised opening of the switch’s lid may cause danger of injury from electric shock, damage to the switch, and invalidation of the product warranty. To install DIMM in an AT-8900 series switch: 1. Avoid injury by working in a safe environment. The workspace should be free of hazards, and there should be sufficient room to lay out the switch, DIMM, and tools. 2.
34 AT-8900 Series Switch Figure 13: AT-8900 Series DIMM slot. 10/100Base-T ports SFP sockets DIMM 8948PCB 7. Align and insert the DIMM. Holding a DIMM at an angle of about 30 degrees from horizontal, align the notches on its connector strips with the notches on an empty DIMM slot (see Figure 14 on page 35). Insert the DIMM into the DIMM slot, sliding it along the two DIMM guides until the retaining latches automatically click into place. The latches should hold the DIMM firmly in place.
Hardware Reference 35 Figure 14: Installing DIMM. Retaining latch DIMM DIMM slot Retaining latch 10/100Base-T ports SFP sockets 8948DIMM Testing DIMM The switch is unlikely to boot unless the DIMM is correctly installed. If the switch does boot but you suspect the DIMM is malfunctioning, enter the command: SHOW SYSTEM to display the system information shown in Figure 15 on page 36. In the output’s memory section there should be an entry showing the size of DRAM.
36 AT-8900 Series Switch After repeating the installation, use the SHOW SYSTEM command again, and if the display is still not correct, contact your authorised Allied Telesyn distributor or reseller. If you have any difficulty with the DIMM at any time, contact your authorised Allied Telesyn distributor or reseller and quote the serial numbers of both the base card on the switch and the DIMM. The switch’s serial numbers and revision details can be read using the SHOW SYSTEM command.
Hardware Reference 37 totally dedicated to their use. A detailed knowledge of the way the switch hardware functions is necessary if diagnostics are to be used effectively. The switch will not perform switching operations if diagnostics are running. This section is not intended as a guide to the diagnostics software. Diagnostics are designed to be run by service personnel only. For more information, contact your Authorised Allied Telesyn distributor or reseller. To enable diagnostics mode: 1.
38 AT-8900 Series Switch Figure 16: AT-8900 Series diagnostics banner page. * * * Diagnostic Mode * * * version: 16-Mar-1998 Main Menu: 0. Restart 1. Full RAM test 2. ROM checksum test 5. Battery backed RAM test Enter selection ==> To run a diagnostic program, enter the corresponding letter or number (or key). There are several sub-menus to cover all the available options. Table 13 on page 38 lists the control keys for diagnostic operations. Table 13: Basic commands for running the diagnostics.
