AT-8700XL Series Switch Hardware Reference AT-8724XL AT-8748XL
AT-8700XL Series Hardware Reference Document Number C613-03064-00 REV E. © 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.
Hardware Reference 3 Contents Models Covered By This Reference .................................................................... 4 Why You Should Read This Reference ............................................................... 4 Where To Find More Information ...................................................................... 5 Hardware Description ....................................................................................... 5 Switch Overview ............................................
AT-8700XL Series Documentation Roadmap Uplink Module AT-8700XL Series Uplink Module Quick Install Guide AT-8700XL Series Safety and Statutory Information Booklet Uplink Module Hardware Reference AT-8700XL Series Quick Install Guide AT-8700XL Series Software Reference General Customer Support AT-8700XL Series Hardware Reference Visit www.alliedtelesyn.co.nz for the latest documentation, FAQs, and support information.
Hardware Reference 5 Where To Find More Information The Documentation and Tools CD-ROM bundled with each AT-8700XL Series switch contains the complete Document Set for your switch and its expansion options, as well as tools for managing the switch. This includes: ■ The AT-8700XL Series Safety Booklet, which provides safety and statutory information. ■ The AT-8700XL Series Quick Install Guide, which outlines the procedure for installing switch units; and this AT-8700XL Series Hardware Reference.
AT-8700XL Series Environmental Conditions • Operating temperature range: 0 to 40º C (32 to 104º F) • Storage temperature range: -25 to 70º C (-13 to 158º F) • Relative humidity range: 5 to 95% non-condensing Regulatory Standards • EMC: CISPR22 class A, FCC class A, and VCCI class I • Immunity testing to EN50082 levels 2 (ESD), 3 (susceptibility), 4 (fast transients), 5 (power surge), and 6 (RF immunity) • Safety: UL1950, CSA22.
Hardware Reference 7 AT-8700XL Series Switch Models This section provides hardware descriptions for individual switch models. AT-8724XL (Figure 1 on page 7) • 24-port 10BASE-T/100BASE-TX (RJ-45 connectors) • Two 10/100/1000BASE uplink bays • Auto-negotiating Advanced Fast Ethernet Switch • Enhanced 5615 switching core Figure 1: Front panel of the AT-8724XL.
AT-8700XL Series 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 AT-8700XL Series Documentation and Tools CD-ROM in the CD-ROM drive. 2. If the CD browser screen does not appear. Select "Run" from the Start Menu (Windows 95, 98, 2000 or NT 4.0).
Hardware Reference 9 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 ATTFTP Server will read from or write to for file requests that do not include a directory specification. To prevent unauthorised access to private directories, enter a path name in the "Restrict to directory" field.
AT-8700XL Series 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 switching capabilities. To Log In Using the supplied RS-232 DB9 straight-through cable, connect your terminal or PC to the RS-232 Terminal Port on the switch’s front panel.
Hardware Reference 11 To see a list of files stored in flash, enter: show file Help files have an HLP extension. To display a list of help topics, enter: help To display help on a specific topic, enter: help topic Alternatively, type a question mark (?) at the end of a partially completed command to see a list of valid options.
AT-8700XL Series Table 2: Switch start-up message classes. Message Meaning INFO An action will be taken by the system. PASS A test has been completed successfully. ERROR An error message that a test has failed, but the system will continue to operate. FAIL An error message that a fatal error condition has caused the system to halt in an unrecoverable fashion. The possible messages and their meanings are: INFO: Self tests beginning. The code loader tests are about to begin.
Hardware Reference 13 ERROR: Code load retried. FAIL: Code load failed. The load of the code from ROM to RAM failed. The load is retried a number of times. Each time a failure occurs, the ERROR message is displayed. If the maximum number of attempts is reached, the FAIL message is displayed. INFO: Initial download succeeded. The start-up tests and download are complete, and the switch software is about to be started. If the default install is a compressed release, the release will now be decompressed.
AT-8700XL Series Figure 4: RS-232 Terminal Port Pin Numbers. Pin 5 Pin 9 Pin 1 Pin 6 DB9 Female Pin View Table 3: Internal DTE pin roles. Pin Role 2 TXD 3 RXD 4 CD 5 GND 6 DTR 7 CTS 8 RTS Switch RJ-45 Ports Caution. Do not plug a phone jack into any RJ-45 port. Doing so could damage the switch. Use only twisted pair cables with RJ-45 connectors. For 10BASE-T/100BASE-TX connections, a twisted pair cable must be used. Each pair is identified by two different colours.
Hardware Reference 15 Table 4: RJ-45 Pin assignments. Pin Number Assignment1 1 TX+ 2 TX- 3 RX+ 6 RX- 1. The “+” and “-” signs represent the polarity of the wires that make up each wire pair. If a twisted pair cable is to join two ports and only one of the ports has an internal crossover, the two pairs must be straight through, as listed in Table 5 on page 15. Table 5: RJ-45 Pin assignments, straight through cable.
AT-8700XL Series Redundant Power Supply AC models of AT-8700XL Series switches have a Redundant Power Supply (RPS) connector on their rear panel. Table 7 on page 16 lists the connector’s pin numbers and pin functions. Table 7: RPS Connector Pin Numbers and Functions. Pin Number Function 1 +12 VDC 2 Remote Sense (RS) +5 VDC 3 Remote Sense (RS) Ground 4 Remote Sense (RS) +3.3 VDC 5 Redundant Power Supply (RPS) Present 6 Ground (+3.
Hardware Reference 17 Switch Cables and Loopback Plugs This section describes how to make cables for connecting the switch’s interfaces to networks, terminals, and printers. How to make loopback plugs for testing switch interfaces is also described. Terminal and Modem Cables Figure 6 on page 17 shows how to wire cables to connect a standard VT100 compatible terminal, or a modem, to the switch’s RS-232 Terminal Port. Figure 6: Pin wiring diagram for a standard DB9 male to female terminal cable.
AT-8700XL Series Figure 7: Pin wiring diagram for a DCE RS-232 Terminal Port (DB9 female connector) male to male modem cable.
Hardware Reference 19 Loopback Plugs for Testing Switch Interfaces Loopback plugs are used in conjunction with the Test Facility software to test the physical interfaces on the switch (see the “Test Facility” section beginning on page 22 of this Reference, and the Test Facility chapter of the AT-8700XL Series Software Reference).
AT-8700XL Series Figure 9: Example output from the SHOW TEST command.
Hardware Reference 21 Performing the following tasks will eliminate the most common faults. 1. Make sure the power cord is securely connected. 2. Check that the power supply voltage is stable. 3. Check that the correct data cables are being used and that their connections are secure. 4. Make sure that other network devices are working properly. 5. Use the SHOW INSTALL command to check that the latest software release is loaded.
AT-8700XL Series Table 11: Switch Port LEDs (AT-8724XL and AT-8748XL).
Hardware Reference 23 Table: 14 AT-A40/SC, AT-A40/MT, AT-A41/SC and AT-A41/MT LEDs.
AT-8700XL Series 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.
Hardware Reference 25 Perform the following steps in sequence: 1. Check Table 10 on page 21 for descriptions and explanations of LED flashing sequences. 2. Reset the switch by pressing the recessed RESET button on the front panel. 3. If you were attempting to download software or manage the switch via the RS-232 terminal Port, check that connections between the Terminal Port and local terminal or PC are secure.
AT-8700XL Series Port, Connector, and Cable Combinations This section provides cabling guidelines for each switch model. Table 16: Cable guidelines. Model Port Type(s) Connector Type(s) Cable Type1 Maximum Cable Length AT-8724XL 10BASE-T/ 100BASE-TX RJ-45 10BASE-T Category 3 or better 100m (328ft) 100BASE-TX Category 5 or better 100m (328ft) AT-8748XL 1. Refer to the IEEE 802.
Hardware Reference 27 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 98, 2000, and XP Professional. In standard Windows installations, HyperTerminal is available from the Communications submenu.
AT-8700XL Series 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 port parameters as follows, and click the OK button.
Hardware Reference 29 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.
AT-8700XL Series 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. Restricted Procedures This section contains procedures that should only be performed by authorised service personnel.
Hardware Reference 31 3. Enable diagnostics mode during start-up. During the switch start-up process, at the prompt: Force EPROM download (Y)? press [Ctrl/D] on the terminal to enter diagnostics mode. A banner page will be displayed on the terminal (Figure 10 on page 31). This can be used to check that the terminal is correctly connected. Figure 10: AT-8700XL Series diagnostics banner page. * * * Diagnostic Mode * * * version 25-Jul-02 Main Menu: 0. Restart 1. Full RAM test 2. ROM checksum test 3.
AT-8700XL Series To change the boot EPROMs: 1. Check that you have the correct tools and equipment available. You will need a medium-sized posidrive screwdriver and an EPROM extraction tool (or a small flat-bladed screwdriver). In addition, adequate antistatic precautions must be used. EPROMs, like most electronic equipment, are highly sensitive to electrostatic damage. This can be particularly acute in the dry atmosphere normally associated with computer rooms and typical offices.
Hardware Reference 33 Figure 11: EPROM locations. Boot EPROMs Fan 8700eprom 7. Insert the new boot EPROMs. Insert the new boot EPROMs one at a time, using as a reference the location number printed on the CPU board (e.g., “0” and “1”) and Figure 11 on page 33. Check that the boot EPROMs are firmly seated. Install the boot EPROMs the correct way up! Failure to do so will almost certainly destroy them. The ‘top’ end of the EPROM has a notch.
AT-8700XL Series Figure 12: Example output from the SHOW INSTALL command. Install Release Patch -----------------------------------------------------------Temporary Preferred flash:load\86s-210.rez Default EPROM (86s-2.1.0) -----------------------------------------------------------Current install -----------------------------------------------------------Preferred flash:load\86s-210.
