x900 Series Switch and SwitchBlade® x908 Hardware Reference AT-8948 x900-48FE x900-48FE-N x900-48FS AT-9924T AT-9924SP AT-9924Ts x900-12XT/S x900-24XT x900-24XT-N x900-24XS SwitchBlade® x908
x900 Series Switch and SwitchBlade® x908 Hardware Reference AT-8948 x900-48FE x900-48FE-N x900-48FS AT-9924T AT-9924SP AT-9924Ts x900-12XT/S x900-24XT x900-24XT-N x900-24XS SwitchBlade® x908 Download the complete document set from www.alliedtelesis.
x900 Series Switch and SwitchBlade® x908 Hardware Reference Document Number C613-03092-00 REV J © 2009 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.
Hardware Reference 3 Contents Devices Covered by this Document ................................................................... 5 48-Port Fast Ethernet Switches .......................................................................... 6 Dimensions ................................................................................................ 6 Mounting system ....................................................................................... 6 Asynchronous serial port ............................
4 x900 Series Switch and SwitchBlade® x908 Cables ............................................................................................................ RS-232 Terminal and Modem Cables ........................................................ Cables for RJ-45 Ethernet LAN Interfaces .................................................. Cables for Stacking .................................................................................. Cable Guidelines .................................................
Hardware Reference 5 Devices Covered by this Document This Hardware Reference contains information on the following devices: ■ AT-8948 switch ■ x900-48FE switch ■ x900-48FE-N switch ■ x900-48FS switch ■ AT-9924T switch ■ AT-9924SP switch ■ AT-9924Ts switch ■ x900-12XT/S switch ■ x900-24XT switch ■ x900-24XT-N switch ■ x900-24XS switch ■ SwitchBlade® x908 switch ■ AT-PWR01 AC and DC power supply units ■ AT-PWR02 AC power supply unit ■ AT-PWR05 AC and DC power supply unit ■ AT
x900 Series Switch and SwitchBlade® x908 6 48-Port Fast Ethernet Switches These Fast Ethernet switches meet the exceptionally high performance demands of high-end applications: Dimensions Mounting system Asynchronous serial port Environmental conditions Regulatory standards Switching core ■ AT-8948 ■ x900-48FE ■ x900-48FE-N (NEBS compliant model) ■ x900-48FS ■ Height: 44.5 mm, plus 5.
Hardware Reference 7 Processing core IPv6 accelerator card ■ 350 MHz RISC Processor ■ 32 MBytes of on-board flash ■ 256 MBytes of Synchronous DRAM, expandable to 512 MBytes with DIMM ■ CompactFlash slot for hot-swappable expansion of flash memory ■ 512 kBytes of SRAM ■ 32/66 PCI bus for 32-bit/33 MHz ■ Silicon ID chip stores serial number, board ID, and MAC address AT-8948 switches have a slot for an optional AT-ACC01 network processor accelerator card to provide accelerated unicast and mu
x900 Series Switch and SwitchBlade® x908 8 Gigabit Switches The AT-9900 series switch provides advanced Gigabit Ethernet multi-layer switches that are perfect for the high-density rack environment where space is at a premium: Dimensions Mounting system Asynchronous serial port Environmental conditions Regulatory standards Switching core Processing core ■ AT-9924T ■ AT-9924SP ■ Height: 44.5 mm, plus 5.
Hardware Reference AT-9924T switch 9 Key features are: ■ Autonegotiating, multi-layer gigabit switch ■ 24 x 10BASE-T/100BASE-TX/1000BASE-T ports (RJ-45 connectors) ■ 4 x SFP ports (see “Network Ports” on page 20 for speeds) ■ Hot-swappable, load sharing PSUs AT-9924T front panel There can be 24 ports operational at one time. The RJ-45 ports 1 to 4 use the same physical interface as the SFP ports 1 to 4. When an SFP is inserted into an SFP port, the corresponding RJ-45 port is disabled.
x900 Series Switch and SwitchBlade® x908 10 Expandable Gigabit Switches These gigabit link aggregation switches operate with other switches that have 10 Mb/100 Mb/1 Gb/10 Gb Ethernet ports. These switches can act as a gigabit server backbone or pass aggregated traffic over their gigabit ports. They can also aggregate gigabit desktop user connections and pass traffic to other 10 Gigabit Ethernet equipment.
Hardware Reference Asynchronous serial port Environmental conditions Regulatory standards Switching core Processing core 11 ■ Up to 115 kbps ■ Universal Asynchronous Receiver Transmitter (UART) ■ Standard RJ-45 connector ■ Hardware flow control on switches running the AlliedWare operating system ■ Operating temperature range: 0º C to 40º C (32º F to 104º F) derated by 1° C per 305 Meters (1000 ft) ■ Storage temperature range: -25º C to 70º C (-13º F to 158º F) ■ Relative humidity range f
x900 Series Switch and SwitchBlade® x908 12 AT-9924Ts switch Key features are: ■ Autonegotiating, multi-layer gigabit switch ■ 24 x 10/100/1000BASE-TX ports (RJ-45 connectors) ■ Out-of-band 10/100/1000BASE-T Ethernet management port ■ Optional Secure Digital memory card ■ Supports dual, hot-swappable, load sharing PSUs—a second PSU is optional ■ Two high-speed bays to support a combination of expansion modules: • AT-A60, 1 x 10 GbE XFP port • AT-A61, 12 x SFP ports • AT-A62, 12 x RJ-45 po
Hardware Reference x900-24XT switch 13 Key features are: ■ Autonegotiating, multi-layer gigabit switch ■ 24 x 10/100/1000BASE-TX ports (RJ-45 connectors) ■ Out-of-band 10/100/1000BASE-T Ethernet management port ■ Optional Secure Digital memory card ■ Supports dual, hot-swappable, load sharing PSUs—a second PSU is optional ■ NEBS compliant model available, x900-24XT-N ■ Two high-speed bays to support a combination of expansion modules: • XEM-1XP, 1 x 10 GbE XFP port • XEM-2XP, 2 x 10GbE XF
x900 Series Switch and SwitchBlade® x908 14 SwitchBlade x908 Key features are: ■ Autonegotiating, multi-layer gigabit switch ■ Out-of-band 10/100/1000BASE-T Ethernet management port ■ Optional Secure Digital memory card ■ Supports dual, hot-swappable, load sharing PSUs ■ Dual, hot-swappable chassis fans ■ Two fixed stacking connectors on the rear of the chassis ■ RoHS compliant ■ Eight high-speed bays to support a combination of expansion modules: • XEM-1XP, 1 x 10 GbE XFP port • XEM-2X
Hardware Reference 15 Switch LEDs The following LEDs report operations and faults on the x900 series switch and SwitchBlade x908: Fast Ethernet RJ-45 port LEDs ■ Fast Ethernet RJ-45 port LEDs ■ Gigabit RJ-45 port LEDs ■ XFP port LEDs ■ SFP port LEDs ■ System LEDs ■ Stacking LEDs The following LEDs report operations and faults on Fast Ethernet RJ-45 ports. LED State Description L/A (Link Activity) Green A 100 Mbps link has been established.
x900 Series Switch and SwitchBlade® x908 16 SFP port LEDs The following LEDs report operations and faults on SFP ports.
Hardware Reference System LEDs 17 The following LEDs report operations and faults on the switch. LED State Description PSU 1 Green The PSU is installed and supplying power to the switch. The voltage output is within specification. Red One of the following: and PSU 2 • The PSU is installed in the switch, and a fan has failed or the PSU has exceeded its recommended temperature threshold. • A FOM is installed in the switch and a fan has failed.
x900 Series Switch and SwitchBlade® x908 18 Stacking LEDs LED State Description (cont) SD Green flashing The Secure Digital memory card is active and should not be ejected. The card can be safely ejected when the LED remains off. Valid for the AT-9924Ts, x900-12XT/S, x900-24XT, x900-24XT-N, x900-24XS, and SwitchBlade x908 switches. The following LEDs report stacking operations and faults on the SwitchBlade x908 switch and the XEM-STK expansion module.
Hardware Reference 19 Management Ports The following management ports let you configure, monitor, and upgrade the switch: ■ RS-232 Terminal Port ■ Out-of-Band Ethernet Management Port RS-232 Terminal Port The RS-232 ASYN0/CONSOLE port is standard for the x900 series switches and SwitchBlade x908, and connects them to a management device for initial configuration. This port allows the software on the switch to be accessed from a terminal or a PC running terminal emulation software.
x900 Series Switch and SwitchBlade® x908 20 Network Ports The following ports are on the switches and XEMs: ■ SFP Ports ■ XFP Ports ■ RJ-45 Ports ■ Stacking Ports SFP Ports SFP transceivers are compact, hot-swappable, and high speed. Different fibre and copper SFP transceivers are supported so that you can interchange port types to meet changing network requirements. SFP transceivers must be purchased separately.
Hardware Reference 21 Port Type (cont) Copper (cont) Fibre (cont) x900-48FS switch ports n/a no autonegotiation 100 Mbps half/full duplex AT-9924T switch ports autonegotiate 10 Mbps half/full duplex 100 Mbps half/full duplex 1000 Mbps half/full duplex autonegotiate 1000 Mbps full duplex AT-9924SP switch ports autonegotiate 10 Mbps half/full duplex 100 Mbps half/full duplex 1000 Mbps half/full duplex no autonegotiation 100 Mbps half/full duplex x900-12XT/S combo ports autonegotiate 1000 Mbps h
x900 Series Switch and SwitchBlade® x908 22 SFP Transceiver Release Lever Slide the transceiver into the SFP socket, and firmly press it until it engages. To remove it, first release it by gently pulling the release lever, and then pull the transceiver out of the socket. Never force a transceiver into or out of a socket. Note that the above illustration does not show the correct orientation for an SFP transceiver for insertion into an SFP socket in the top row of SFP sockets shown.
Hardware Reference 23 XFP Ports XFPs are approved for use with the AT-A60 and XEM-1XP and XEM-2XP expansion modules. XEM-2XP is only supported on Allied Telesis switches running the AlliedWare Plus operating system. XFPs must be purchased separately. For the latest list of approved XFPs, contact your authorised Allied Telesis distributor or reseller. The AT-A60 is supported on the AT-9924Ts switch.
x900 Series Switch and SwitchBlade® x908 24 Expansion Options Optional expansion modules make the AT-9924Ts, x900-12XT/S, x900-24XT, x900-24XT-N, x900-24XS, and SwitchBlade x908 switches some of the most flexible units available. They provide economical combinations of speed and port density.
Hardware Reference 25 Memory Options The following memory expansion options are available: ■ CompactFlash Card ■ Secure Digital (SD) Card ■ Dual In-line Memory Module (DIMM) CompactFlash Card CompactFlash (CFlash) cards are a memory expansion option for the following switches running the AlliedWare operating system: ■ AT-8948 ■ x900-48FE ■ x900-48FS ■ AT-9924T ■ AT-9924SP Data such as releases, patches, and configurations can be stored on these cards, and files can be manipulated with the
x900 Series Switch and SwitchBlade® x908 26 The following figure is an example of 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 Testing a CFlash card = 19300 = 1 = 42645 It is important to fully test the hardware interface of the switch to the CFlash card. This test consists of reading vendor information and reading and writing to every part of the card.
Hardware Reference 27 Secure Digital (SD) Card Secure Digital cards are a memory expansion option for the following switches: ■ AT-9924Ts ■ x900-12XT/S ■ x900-24XT ■ x900-24XT-N ■ x900-24XS ■ SwitchBlade x908 Data such as releases and configurations can be stored on SD cards, and files can be manipulated with the command line interface (CLI). On switches running the AlliedWare Plus operating system, you can boot from an SD card using the Bootloader menu.
x900 Series Switch and SwitchBlade® x908 28 Managing the File System chapter in the AlliedWare® Operating System Software Reference.
Hardware Reference 29 Dual In-line Memory Module (DIMM) Synchronous DRAM (SDRAM) is provided by a single DIMM. Only DIMMs supplied by Allied Telesis have been tested and approved for use. Using unapproved DIMMs may cause unreliable operation and will invalidate the warranty for the switch. The following SDRAM options are supported: ■ AT-8948, x900-48FE, x900-48FS, AT-9924T, and AT-9924SP switches ship with 256 MBytes of SDRAM, expandable to 512 MBytes with a DIMM.
x900 Series Switch and SwitchBlade® x908 30 Cables This section describes the following: ■ RS-232 Terminal and Modem Cables ■ Cables for RJ-45 Ethernet LAN Interfaces ■ Cables for Stacking ■ Cable Guidelines ■ Troubleshooting Cables RS-232 Terminal and Modem Cables The terminal and modem cables described in this section are: ■ RS-232 RJ-45 to DB9 female terminal cable ■ DCE RS-232 terminal port RJ-45 to DB9 male modem cable Figures in this section show pin wiring diagrams to connect a standa
Hardware Reference 31 RJ-45 to DB9 male modem cable RJ-45 (to switch) DB9 Male (to modem) 7 1 6 3 2 3 2 5 4 not connected 1 4 5 6 not connected 7 8 8 9 not connected Note Cable version 1.0 RJ45DB9M_x900 For more information on pin assignments for the RS-232 port, see “RS-232 Terminal Port” on page 19. Cables for RJ-45 Ethernet LAN Interfaces A twisted pair cable with four pairs and RJ-45 connectors must be used for 10BASE-T/100BASE-TX/1000BASE-T connections.
x900 Series Switch and SwitchBlade® x908 32 1000BASE straight-through cable For 1000BASE network connections, all four pairs are used and the cable is wired in a straight-through configuration. You can use this cable with the software test facility to test 1000BASE network ports. The following table lists pin assignments for a 10/100/1000BASE-T RJ-45 four pair straight-through cable.
Hardware Reference 33 Cable Guidelines The following table lists port, connector, and cable combinations for switches and expansion modules.
x900 Series Switch and SwitchBlade® x908 34 Troubleshooting Cables Cable test The virtual cable test facility diagnoses cable faults and the approximate distance to them on Gigabit Ethernet RJ-45 ports for the following switches running the AlliedWare operating system: ■ AT-9924T ■ x900-24XT ■ x900-24XT-N ■ x900-24XS See “Test Facility” on page 57 for more information or the Test Facility chapter in the AlliedWare® Operating System Software Reference.
Hardware Reference 35 Power Supply Units (PSUs) and Fans Depending on the model, single or dual PSUs can be fitted on the rear of the switch, as either AC or DC. Some models also have fan-only modules (FOM) and chassis fans. Model Description AT-8948 x900-48FE x900-48FS AT-9924T AT-9924SP Supports 1 PSU and 1 FOM, or 2 PSUs. x900-12XT/S Supports 1 fixed PSU. AT-9924Ts x900-24XT x900-24XS Supports 1 PSU and 1 FOM, or 2 PSUs. SwitchBlade x908 Supports 2 System PSUs and 2 chassis fan modules.
x900 Series Switch and SwitchBlade® x908 36 Approved PSUs and fans The following table shows which models of PSUs and fans are appropriate for individual switches. Switch PWR01 PWR02 AT-8948 9 9 x900-48FE 9 9 9 x900-48FS FAN01 FAN03 9 AT-9924T 9 9 AT-9924SP 9 9 AT-9924Ts 9 9 x900-24XT 9 9 x900-24XS 9 9 9 SwitchBlade x908 PWR01 AC and DC PSUs PWR05 9 Key features are: ■ Hot-swappable and load sharing ■ Physical dimensions • Height: 40.
Hardware Reference PWR02 AC PSU 37 LED State Description Fault Red There is either a fan failure, or the temperature has exceeded its limit of 70º C (158º F). Key features are: ■ Hot-swappable and load sharing ■ Physical dimensions • Height: 40.9 mm • Width: 193 mm • Depth: 130 mm ■ Do not combine PWR01 and PWR02 PSUs in the same switch. ■ Universal 100–240 VAC 47/63 Hz input ■ Maximum continuous current draw: 2.2 A at 100 V, 1.
x900 Series Switch and SwitchBlade® x908 38 The following LEDs report operations and faults on the PWR05 PSU The following table describes LEDs on the PWR05 AC power supply unit. LED ~ IN OUT FAULT State Description Green AC input voltage is within 90-264 VAC, 47-63Hz. Off AC input voltage is outside the acceptable range. Green DC output voltage is within 12V +/- 10%. Off DC output voltage is outside the acceptable range, or the Standby switch is Off.
Hardware Reference 39 No configuration is necessary for the accelerator card to function; the card is enabled at installation. If you disable the card (using software), the switch handles IPv6 routing in the software. Use the hardware filter and QoS commands to enable Quality of Service (QoS) functionality on the accelerator card. For information about QoS functionality and hardware filters, see the Quality of Service and Switching chapters in the Software Reference.
x900 Series Switch and SwitchBlade® x908 40 Verifying installation To confirm that the network processor accelerator card is installed and operating correctly, check that the switch has recognised it. Turn on the switch and enter the show system command to display system information. The following figure is an example of output from the show system command for the AT-8948 model.
Hardware Reference 41 processor accelerator card at any time, contact your authorised Allied Telesis distributor or reseller and supply the serial numbers for them. If there is no entry for the accelerator card, then the switch’s boot process has not detected the card. The most likely cause is that the card is incorrectly plugged into the slot on the switch’s base board.
x900 Series Switch and SwitchBlade® x908 42 Using AT-TFTP Server This section explains how to access and use the AT-TFTP Server. You can transfer configuration files as well as download software upgrades with AT-TFTP Server. 1. If AT-TFTP Server has not been installed, install it now. You can download it from www.alliedtelesis.com/support/software/. Select AT-TFTP Server from the Start > Programs > Allied Telesis > AT-TFTP Server menu. 2.
Hardware Reference 43 3. • Diagnostic Messages: Check “Diagnostics Messages” to display additional diagnostic messages in the AT-TFTP Server window when debugging file transfers. • IPv4 and IPv6: Choose whether AT-TFTP Server should respond to TFTP requests received via IPv4 only, IPv6 only, or both IPv4 and IPv6.
x900 Series Switch and SwitchBlade® x908 44 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.
Hardware Reference 45 3. In the “Connect using” field on the Connect To dialog box, select the COM port on the PC used to connect to the switch. and click the OK button. 4. In the COMn Properties dialog box, set the port to 9600 bits per second, 8 data bits, no parity, and 1 stop bit. • For switches running the AlliedWare® operating system, set the flow control to Hardware. • For switches running the AlliedWare Plus™ operating system, set the flow control to None. Click the OK button.
x900 Series Switch and SwitchBlade® x908 46 5. From the main HyperTerminal window, select Properties from the File menu. Click the Settings tab, and set the Properties dialog box as follows. 6. Click ASCII Setup to display the ASCII Setup dialog box, and ensure the following options are not selected: • Echo typed characters locally • Append line feeds to incoming line ends Set other parameters as necessary and click the OK buttons on both dialog boxes to close them.
Hardware Reference 47 7. Save the current session by selecting Save from the File menu on the main HyperTerminal window. This creates a connection icon with the name you assigned in the HyperTerminal group. To use the configuration, double-click the connection icon. When the HyperTerminal window appears, press the Enter key several times; the switch’s login prompt is then displayed.
x900 Series Switch and SwitchBlade® x908 48 How the Switch Starts Up When the switch starts up following a power cycle or an operator-initiated reboot (using the reset button or restart command), it performs a series of tests and sends messages to the terminal or PC connected to the ASYN0/CONSOLE port. After the switch successfully starts, a prompt is displayed for you to log in. Refer to the x900 Series Switch and SwitchBlade® x908 Installation and Safety Guide for basic login instructions.
Hardware Reference Overrides 49 Stage This happens... Done by... 4 Hardware boards and software components are initialised. Base or Fallback 5 The startup configuration script that the user specified is executed. Base or Fallback 6 Startup is complete and the switch starts switching traffic if devices connected to it are sending traffic.
x900 Series Switch and SwitchBlade® x908 50 Fallback output Fallback software is a subset of the base package and runs when the base package is unavailable. When the switch runs fallback software, a series of messages similar to those in the following figure are displayed. . . (bootloader messages) . Booting fallback software Installing system.img (1219098 bytes) ............ done Initiating system software ...................... done . . .
Hardware Reference 51 Message Description (cont) Booting install-type filename.pkg. Name of the software package to be installed: preferred base package, temporary base package, or fallback. For information about types of install, see “Install Process” in the Managing Configuration Files and Software Versions chapter in the Software Reference. Installing system.img ...done or Installing system.img ...
x900 Series Switch and SwitchBlade® x908 52 AlliedWare operating system messages Message Description (cont) ERROR: System image has no section headers The system image file is corrupt or invalid because it has no section header information. Contact your authorised distributor or reseller. ERROR: No memory available for storing ELF element A serious problem exists with memory allocation software or memory on the switch. Contact your authorised distributor or reseller.
Hardware Reference 53 Message Description (cont) WARNING: Bad board of type in Expansion Bay Board personality of the given type in the given bay could not be read. Possible causes include: • unprogrammed personality PROM on the board • faulty hardware on expansion or host board For information about boards, see the show system boards command in the Configuring and Monitoring the System chapter in the Software Reference.
x900 Series Switch and SwitchBlade® x908 54 AlliedWare Operating System Startup on AT-8948, x900-48FE, x900-48FS, and AT-9900 Switches Process flow Overrides When the AT-8948, x900-48FE, x900-48FS, or AT-9900 switches start, they perform the following operations. Stage This happens... Done by... 1 Self-tests run that check basic operations. Boot ROM 2 A prompt is displayed briefly to allow a user-override. Users can change the startup process by pressing special keys (see Overrides).
Hardware Reference Types of messages AlliedWare operating system messages 55 The following table explains the types of messages that the AT-8948, x900-48FE, x900-48FS, and AT-9900 series switches generate during initial startup. Type Description INFO An action has been taken by the system. PASS A test has been completed successfully. ERROR An error message that a test has failed but the system continues to operate.
x900 Series Switch and SwitchBlade® x908 56 Message Description (cont) INFO: Initial download succeeded Startup tests and download are complete, and the switch software is about to be started.The release is now decompressed. This may take a few seconds. INFO: Downloading compressed release. This may take up to 1 minute... The main switch software is decompressed before being loaded into RAM. INFO: Loading software into memory. This may take up to 1 minute...
Hardware Reference 57 Test Facility The test facility is a hardware test tool in the AlliedWare operating system. Its primary function is to validate that there are no hardware problems after installation of the switch or expansion options. You can also use it as a troubleshooting tool, but it is just one of many such tools. You could consider the test facility to be a specialised interface module, such as PPP or Frame Relay, where the interfaces under test are dedicated to the test facility.
x900 Series Switch and SwitchBlade® x908 58 Diagnostics The AlliedWare and AlliedWare Plus operating systems include a set of diagnostic programs that perform basic checks of all system components. These diagnostics do not run with normal operating code and require that the system be totally dedicated to their use. The switch does not perform switching operations when diagnostics are running. This section describes the diagnostics available in the AlliedWare operating system.
Hardware Reference 59 One of the following menus is displayed depending on the switch model. When you see the menu, you know that the terminal is connected. Menu for AT-8948, x900-48FE, x900-48FS, and AT-9900 series switches. * * * Diagnostic Mode * * * version: Nov 10 2005 11:08:34 Main Menu: 0. Restart 1. Full RAM test 2. ROM checksum test 5. Battery backed RAM test 7. Display PCI devices (not shown for x900-48FE switches) 8.
x900 Series Switch and SwitchBlade® x908 60 Troubleshooting This section provides information on how to troubleshoot the x900 series switch and SwitchBlade x908 to resolve the following basic problems: What to check first ■ L/A LED on a port is off ■ Power LED is off ■ Fault LED is on ■ Check power cord connections. ■ Check that the power supply voltage is stable. ■ Check that the correct data cables are used and that their connections are secure.
Hardware Reference Power LED is off 61 5. If the port is enabled, make sure the transmission speed matches that of the connected device (autonegotiating, full or half-duplex). 6. If the port is disabled, someone disabled it with the software. Find out why before you enable it. If the power LED is off, it may indicate the following: ■ a loose power cord ■ a power supply failure ■ a FOM is installed in that bay Follow these suggestions to resolve the problem: Fault LED is on 1.
x900 Series Switch and SwitchBlade® x908 62 Obtaining Documentation and Resources The complete document set for x900 Series switches and SwitchBlade x908 includes: ■ this Hardware Reference, which contains detailed information on the switch and its hardware features ■ the x900 Series Switch and SwitchBlade® x908 Installation and Safety Guide, which describes how to install the switch and includes important safety and statutory information ■ the Removable Power Supply and Fan Installation Guide, which
Hardware Reference 63 ■ Contacting us C613-03092-00 REV J Tryouts of networking software With locations covering all of the established markets in North America, Latin America, Europe, Asia, and the Pacific, Allied Telesis provides localized sales and technical support worldwide. To find the representative nearest you, visit us on the Web at www.alliedtelesis.com.
64 x900 Series Switch and SwitchBlade® x908 C613-03092-00 REV J
