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Dell PowerConnect 5224 System User's Manual

Gigabit ethernet managed switch
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Dell™ PowerConnect™ 5224 Systems User's Guide
Caution: Safety Instructions
Introduction
Installation
Management Interface
VLANs
Appendix
Notes, Notices, and Cautions
NOTE:
A NOTE indicates important information that helps you make better use of your computer.
NOTICE:
A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
CAUTION:
A CAUTION indicates a potential for property damage, personal injury, or death.
Information in this document is subject to change without notice.
© 2002 Dell Computer Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, PowerConnect, Dimension, Inspiron, Dell Precision, OptiPlex, Latitude, and DellNet are trademarks of Dell Computer Corporation;
Microsoft and Windows are registered trademarks of Microsoft Corporation.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Computer Corporation
disclaims any proprietary interest in trademarks and trade names other than its own.
August 2002    P/N 5P788     Rev. A01

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  • Page 1 Microsoft and Windows are registered trademarks of Microsoft Corporation. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own.

  • Page 2: Management Features

    Management information base (MIB) II (RFC 1213) Interfaces Evolution MIB (RFC 2863) Ethernet-like MIB (RFC 2665) Bridge MIB (RFC 1493) Extended Bridge MIB (RFC 2674) RMON MIB (RFC 2819) Entity MIB (RFC 2737) RADIUS authentication client MIB (RFC 2618) Dell PowerConnect 5224 Private MIB...

  • Page 3: Front Panel Components

    Front-Panel Components The front panel of the switch contains the console port, all of the Ethernet ports, and LEDs. As shown in the following figure, the switch has three system LEDs and one LED for each port. The following sections describe the front panel in more detail. PWR LED The PWR (power) LED shows the general operating status of the system.

  • Page 4: Back Panel Descriptions

    The switch supports the Dell PowerConnect RPS-600 external redundant power system. NOTE: See the RPS-600 documentation for more information. CAUTION: Do not use this switch with any redundant power system other than the Dell PowerConnect RPS-600. Management The following sections describe options for managing the switch. Web-Based Interface NOTE: To access the switch through a web browser, the computer running the web browser must have IP-based network access to the switch.

  • Page 5: Installation

    The switch supports the Dell PowerConnect RPS-600 external redundant power system. NOTE: See the RPS-600 documentation for more information. CAUTION: Do not use the switch with any redundant power system other than the Dell PowerConnect RPS-600. Connecting the Console Port...

  • Page 6: Password Protection

    The switch provides an RS-232 serial port that enables a connection to a computer or terminal for monitoring and configuring the switch. This port is a male DB-9 connector, implemented as a data terminal equipment (DTE) connection. To use the console port, you need the following equipment: A terminal or a computer with both a serial port and the ability to emulate a terminal A null modem or crossover RS-232 cable with a female DB-9 connector for the console port on the switch To connect a terminal to the console port:...

  • Page 7: Snmp Settings

    NOTICE: CLI configuration commands only modify the running configuration file and are not saved when the switch is rebooted. To save all your configuration changes in nonvolatile storage, you must use the copy command to copy the running configuration file to the startup configuration. SNMP Settings Simple Network Management Protocol (SNMP) is a protocol designed specifically for managing devices on a network.

  • Page 8: Connecting Devices To The Switch

    Before you can assign a static IP address to the switch, you must obtain the following information from your network administrator: IP address for the switch Default gateway for the network Network mask for the network To assign a static IP address to the switch: 1.

  • Page 9: Management Interface

    Back to Contents Page Management Interface Dell™ PowerConnect™ 5224 Systems User's Guide   Web Pages   VLAN   System   Class of Service   Switch   Link Aggregation   Ports   SNMP   Address Table   Multicast Support   Spanning Tree   Statistics With web-based management, you can configure the PowerConnect 5224 Gigabit Ethernet Managed Switch and monitor the system using a web browser. Most pages for the switch include the following buttons: Refresh — Displays the current values for the system related to the page that is open.

  • Page 10: General Information

    Switch The Switch page contains all system operations and general information. It includes links to the following options: General — Allows you to view general system information and perform general administration. IP Address — Allows you to view or edit Internet Protocol (IP) parameters. Security —...
  • Page 11 CLI Commands The following table summarizes the equivalent CLI commands for items in the Switch/General/Asset page. Command Usage show system Displays system information hostname name Specifies or modifies the system name for this device snmp-server contact string Sets the system contact (sysContact) string snmp-server location text Sets the system location string Example...
  • Page 12 ------------------- DONE -------------------- Console# Health The Health page contains the following information: Internal Power Status Redundant Power Status The power status is indicated by the following icons: Green check — Power is connected and operating. Red cross — Power is connected but has failed. Not present —...
  • Page 13 Hardware Version Microcode Version Loader Version Boot-ROM Version Operation Code Version Total Port Number Role Service Tag Serial Number CLI Commands The following table summarizes the equivalent CLI command for items in the Switch/General/Versions page. Command Usage show Displays hardware and software version information for the system, as well as the unit's version power status Example...
  • Page 14 CLI Commands The following table summarizes the equivalent CLI commands for items in the Switch/General/Logs page. Command Usage show logging {flash | ram} Displays the logging configuration for system and event messages flash — event history stored in flash memory (permanent memory) ram —...

  • Page 15: Cli Commands

    CLI Commands The following table summarizes the equivalent CLI commands for items in the Switch/IP Address page. Command Usage ip address {ip-address Sets the primary IP address for this device. Use the no form command to netmask | bootp | dhcp} remove the IP address, or to disable IP address assignment through BOOTP or DHCP.

  • Page 16: Radius Settings

    Passwords RADIUS Settings Passwords You should change the default passwords to be sure that your system is secure: NOTE: The default user names are admin and guest, and the corresponding passwords are admin and guest. If you log in as guest (Normal Exec level), you can only view page information and change the guest password.

  • Page 17: Jumbo Frame

    Local, Radius — The switch attempts to authenticate the user first, and then a RADIUS server attempts to authenticate the user. ¡ Server IP Address — Identifies the IP address of the RADIUS server. Server Port Number — Identifies the User Datagram Protocol (UDP) port number used by the RADIUS server. Secret Text String —...

  • Page 18: Firmware Upgrade

    To save any changes you make in this page, click Apply Changes. If you don't want to save the changes, click Refresh. CLI Commands The following table summarizes the equivalent CLI command for items in the Switch/Jumbo Frame page. Command Usage jumbo Use this command to enable jumbo frames to be forwarded through the switch.
  • Page 19 Selecting the Operation Code Start-up File 1.  In the Start-Up Operation Code Image File field, select the start-up code file from the drop-down menu. 2.  Click Apply Changes. The following table summarizes the equivalent CLI commands for items in the Switch/Firmware page. Command Usage copy tftp file...

  • Page 20: Selecting The Start-Up Configuration File

    2.  In the Source File Name field, select the configuration file to upload from the drop-down menu. 3.  For the Destination File Name, type a filename to identify the configuration file on the TFTP server. 4.  Click Transfer to Server. Transferring a Configuration File from a Server 1.

  • Page 21: Port Configuration

    boot system {boot-rom| config | Specifies the file or image used to start up the system opcode}: filename Example Console#copy tftp startup-config TFTP server ip address: 10.1.0.99 Source configuration file name: startup.01 Startup configuration file name [startup]: Console# Reset Click Reset to reboot the switch. When prompted, confirm that you want to reset the switch. CLI Commands The following table summarizes the equivalent CLI command for items in the Switch/Reset page.
  • Page 22 Flow Control — Allows automatic or manual selection of support for flow control and indicates the type of flow control currently in use. Autonegotiation/Port Capabilities — Allows autonegotiation to be enabled/disabled and indicates the capabilities of the port that are advertised during autonegotiation: 10h —...

  • Page 23: Trunk Configuration

    Console(config-if)# Console(config-if)#description RD SW#3 Console(config-if)#no negotiation Console(config-if)#speed-duplex 100half Console(config-if)#flowcontrol Trunk Configuration On the Trunk Configuration page, you can enable and disable the aggregate port links that have been created on the switch. To set up trunks and select port members, use the Link Aggregation page. For each trunk number listed in the Trunk column, you can change the following parameters listed by column name on the screen: Name/Type —...

  • Page 24: Broadcast Control

    Console(config-if)#no negotiation Console(config-if)#speed-duplex 100half Console(config-if)#flowcontrol Broadcast Control In the Broadcast Control page, you can enable and disable broadcast control for all ports on the switch. The Broadcast Control page contains the following information: Port Number Port Type: 1000Base-TX — 10/100/1000Base-T RJ-45 port ¡...

  • Page 25: Address Table

    Source Port — Specifies the port from which all traffic will be mirrored to the destination port Type — Allows you to select which traffic to mirror to the destination port: Rx, Tx, or Both Destination Port — Specifies the port that receives a copy of all traffic that the source port receives or transmits NOTE: The source port and destination port speeds must match.

  • Page 26: Dynamic Addresses

    CLI Commands The following table summarizes the equivalent CLI commands for items in the Address Table/Static Addresses page. Command Usage bridge bridge-group address mac-address vlan vlan-id forward Maps a static address to a port in a VLAN interface [action] The action parameters are: delete-on-reset: Assignment lasts until switch is reset permanent: Assignment is permanent...

  • Page 27: Address Aging

    The following table summarizes the equivalent CLI command for items in the Address Table/Dynamic Addresses page. Command Usage show bridge bridge-group [interface] [address [mask]] [vlan Allows you to view classes of entries in the vlan-id] [sort {address | vlan | interface}] bridge-forwarding database Example Console#show bridge 1...

  • Page 28: Port Settings

    Forward Delay — Specifies the maximum time (in seconds) the root device waits before changing states (from listening to learning to forwarding). Designated Root — Identifies the priority and MAC address of the device in the Spanning Tree that the switch has accepted as the root device. Root Port —...

  • Page 29: Trunk Settings

    Type — Specifies the type of port, indicates one of the following: 1000Base-TX — 10/100/1000Base-T RJ-45 port ¡ 1000Base-SFP — gigabit SFP transceiver port ¡ State — Displays the current state of the port within the Spanning Tree: No Link — No valid link on the port. ¡...

  • Page 30: Vlan Membership

    NOTE: Use Fast Link if a device is connected to a trunk that requires network access immediately when the link comes up and cannot wait for a Spanning Tree resolution. Fast Link — Immediately enables the trunk in forwarding state when a link comes up. The trunk is not part of the Spanning Tree at that time, but will participate in future Spanning Tree resolutions.
  • Page 31 'F': Port is forbidden from automatically joining the VLAN through GVRP. For more information, see "GVRP." ¡ 'BLANK': Port is not a member of the VLAN. Packets associated with this VLAN will not be transmitted by the port. ¡ The VLAN tagging option is a standard set by the IEEE to facilitate the spanning of VLANs across multiple switches. For more information, see "VLANs" and the IEEE Std 802.1Q-1998 Virtual Bridged Local Area Networks.
  • Page 32 use a hyphen to designate a range of IDs. switchport forbidden vlan {add Configures forbidden VLANs for a port. vlan-list | remove vlan-list} show vlan [id vlan-id | name vlan- Shows VLAN information. name] Example Console(config)#vlan database Console(config-vlan)#vlan 105 name RD5 media ethernet Console(config-vlan)#exit Console(config)#interface ethernet 1/1 Console(config-if)#switchport allowed vlan add 105,7,9 tagged...
  • Page 33 The following table summarizes the equivalent CLI commands for items in the VLAN/Port Settings page. Command Usage switchport native vlan vlan-id Configures the PVID (default VLAN ID) for a port switchport acceptable-frame-types {all | Configures the acceptable frame types for a port tagged} switchport ingress-filtering Enables ingress filtering for a port...

  • Page 34: Class Of Service

    forwards advertisements from other ports on the switch but does not join the advertised VLAN. To implement GVRP in a network, you must first configure the static VLANs required on switches that are connected to computers, servers, and other devices, so that these VLANs can be propagated across the network.

  • Page 35: Traffic Classes

    ports is 0. CLI Commands The following table summarizes the equivalent CLI command for items in the Class of Service/Port Settings page. Command Usage switchport priority default Sets a priority for the incoming untagged frames or the priority of frames default-priority-id received by the device connected to the specified interface Example...

  • Page 36: Queue Scheduling

    CLI Commands The following table summarizes the equivalent CLI commands for items in the Class of Service/Traffic Classes page. Command Usage queue cos-map queue_id [cos1 ... cosn] Assigns traffic class values to the CoS priority queues. Use the no form command to set the CoS map to the default values. show queue cos-map [interface] Shows the CoS priority map.
  • Page 37 CLI Commands The following table summarizes the equivalent CLI commands for items in the Class of Service/Queue Scheduling page. Command Usage queue bandwidth weight1...weight4 Assigns WRR weights to the four CoS priority queues. Use the no form command to restore the default weights. show queue bandwidth Displays the WRR bandwidth allocation for the four CoS priority queues.
  • Page 38 NOTE: The switch allows you to choose between IP Precedence or DSCP priority. Select one of the methods or disable this feature. IP Precedence From the IP Precedence section, you can map IP Precedence values to traffic class values. These settings apply to all ports on the switch. The following options are available: IP Precedence Priority Table —...

  • Page 39: Dscp Priority

    DSCP Priority In the IP DSCP Priority section, you can map DSCP values to traffic class values. These settings apply to all ports on the switch. The following options are available: DSCP Priority Table — Displays a list of DSCP values mapped to CoS values. Class of Service Value —...

  • Page 40: Link Aggregation

    map ip precedence ip-precedence-value Sets IP precedence priority (IP ToS priority) for a port or trunk cos cos-value interface (applies to all ports) show map ip precedence [interface] Shows the IP precedence priority map map ip dscp Enables IP DSCP mapping for the switch map ip dscp dscp-value cos cos-value Sets IP DSCP priority for a port or trunk interface (applies to all ports)
  • Page 41 If the target switch has also enabled LACP on the connected ports, the trunk will automatically activate. If more than four ports attached to the same target switch have LACP enabled, the additional ports enter standby mode and will only be enabled if one of the active links fails.
  • Page 42 The following options are available: SNMP Community Capability — Indicates that the switch supports up to five community strings. Community List — Displays a list of the community strings currently configured. Default strings are public (read-only access) and private (read/write access).

  • Page 43: Multicast Support

    CLI Commands The following table summarizes the equivalent CLI commands for items in the SNMP/Traps page. Command Usage snmp-server host host-addr community-string Specifies the recipient of a SNMP notification operation snmp-server enable traps [authentication | link-up- Enables the device to send SNMP traps down] Example Console(config)#snmp-server host 10.1.19.23...
  • Page 44 Act as IGMP Querier — Enables the switch as Querier. When Querier is enabled, the switch can serve as the Querier, which is responsible for asking hosts if they are supposed to receive multicast traffic. IGMP Query Count (2–10) — Sets the maximum number of queries issued for which there has been no response before the switch takes action to solicit reports.

  • Page 45: Igmp Member Port Table

      Query time-out: 300 sec   IGMP snooping version: Version 1  Console# IGMP Member Port Table You can use the IGMP Member Port Table page to assign ports that are attached to hosts that are supposed to receive a specific multicast service. The following options are available: VLAN ID —...
  • Page 46 VLAN ID. The following options are available: VLAN ID — Specifies the VLAN ID Port/Trunk Toggle Buttons — Allows you to select ports or trunks that are attached to a neighboring multicast router/switch by toggling the value of the port/trunk button: 'S' —...
  • Page 47 The Chart page compares one type of statistic across all ports or trunks. You must define the following variables: Statistics — Specifies the type of system data to monitor Refresh Rate — Specifies the time interval between automatic refreshes Table The Table page lists, in table format, all statistics counters for a specific port or trunk.
  • Page 48     Multi-cast input: 0, Multi-cast output: 1854     Broadcast input: 138, Broadcast output: 165    Ether-like stats:     Alignment errors: 0, FCS errors: 0      Single Collision frames: 0, Multiple collision frames: 0      SQE Test errors: 0, Deferred transmissions: 0      Late collisions: 0, Excessive collisions: 0      Internal mac transmit errors: 0, Internal mac receive errors: 0      Frame too longs: 0, Carrier sense errors: 0    RMON stats:      Drop events: 0, Octets: 435135, Packets: 3430      Broadcast pkts: 303, Multi-cast pkts: 1854     Undersize pkts: 0, Oversize pkts: 0      Fragments: 0, Jabbers: 0      CRC align errors: 0, Collisions: 997976404      Packet size <= 64 octets: 2584, Packet size 65 to 127 octets: 211      Packet size 128 to 255 octets: 198, Packet size 256 to 511 octets: 317      Packet size 512 to 1023 octets: 95, Packet size 1024 to 1518 octets: 25  Console# Console#configure Console(config)#clear counters ethernet 1/17   Back to Contents Page  ...

  • Page 49: Vlans And Frame Tagging

    Back to Contents Page VLANs Dell™ PowerConnect™ 5224 Systems User's Guide   VLANs and Frame Tagging   VLAN Configuration   Automatic VLAN Registration   VLAN Examples VLANs and Frame Tagging The PowerConnect 5224 switch supports IEEE 802.1Q-compliant virtual LANs (VLANs). This capability provides a highly efficient architecture for establishing VLANs within a network and for controlling broadcast/ multicast traffic between workgroups.

  • Page 50: Port Overlapping

    belongs. Port Overlapping Port overlapping can be used to allow access to commonly shared network resources among different VLAN groups, such as file servers or printers. If you implement VLANs that do not overlap but still need to communicate, you must connect them using a router or Layer 3 switch. Forwarding Tagged/Untagged Frames Ports can be assigned to multiple tagged or untagged VLANs.

  • Page 51: Vlan Examples

    VLAN Examples The following four examples demonstrate typical web-interface VLAN configurations for the switch. Example 1 demonstrates a simple two-group VLAN setup. Example 2 demonstrates a more elaborate setup, illustrating all possible scenarios for a comprehensive understanding of tagged VLANs. Examples 3 and 4 show how GVRP can be used to automatically propagate VLANs across a network.
  • Page 52 Example 2 Example 2 illustrates a more complicated setup and demonstrates several scenarios for configuring VLANs. 1.  Set up four VLANs, as shown in following table. All switch ports remain as members of the default VLAN (VLAN ID 1). VLAN ID Name Port Members (Tagged/Untagged) Admin 1 (U), 2 (U), 10 (U)
  • Page 53 Port 01: 2 Port 05: 5 Port 09: 1 Port 13: 1 Port 02: 2 Port 06: 1 Port 10: 2 Port 14: 15 Port 03: 1 Port 07: 1 Port 11: 10 Port 15: 1 Port 04: 5 Port 08: 1 Port 12: 10 Port 16: 1 The PVID of a port must be set to a VLAN ID of which the port is an untagged member.
  • Page 54 2.  From the core switch web interface, go to the VLAN/GVRP page and ensure that GVRP Status is set to enabled. 3.  For the other three switches, ensure that GVRP is enabled globally in the VLAN/GVRP page, as well as on ports connecting to the core switch in the VLAN/Port Settings page.
  • Page 55 4.  For each of the three wiring-closet switches, ensure that GVRP is enabled globally in the VLAN/GVRP page. 5.  For each of the three wiring-closet switches, ensure that GVRP is disabled for each port in the VLAN/Port Settings page. 6.  For the core switch, ensure that GVRP is enabled globally in the VLAN/GVRP page, as well as on ports connecting to the wiring-closet switches in the VLAN/Port Settings page.

  • Page 56: Troubleshooting

      Technical Specifications   Getting Help   Regulatory Notices Troubleshooting This section explains how to isolate and diagnose problems with the switch. If you have a problem that is not listed here and you cannot solve it, contact Dell (see "Getting Help"). LEDs All light-emitting diode (LEDs) are off.
  • Page 57 The switch is powered up. ¡ You have a valid network connection to the switch and the port you are using has not been disabled. ¡ Simple Network Management Protocol (SNMP) management software cannot access the switch. Ensure that: You have configured the switch's management VLAN with a valid IP address, subnet mask, and default gateway. ¡...
  • Page 58 In the preceding figure, the management VLAN is different on each switch, with the Layer 3 switch interconnecting the VLANs. The ports that interconnect the switches are configured as tagged ports. The ports on the Layer 3 switch that connect to the other switches must be configured as members of the management VLAN for each switch.

  • Page 59: Technical Specifications

    The Xmodem file send window displays the progress of the download procedure. NOTICE: The download file must be a PowerConnect 5224 binary software file from Dell. 10.  After the file has been downloaded, press <r> for runtime code or <d> for diagnostic code when Update Image File: appears.

  • Page 60: Getting Help

    Online Services You can access Dell Support at support.dell.com. Select your region on the WELCOME TO DELL SUPPORT page, and fill in the requested details to access help tools and information. You can contact Dell electronically using the following addresses: World Wide Web www.dell.com/...

  • Page 61: Autotech Service

    Automated Order-Status Service To check on the status of any Dell products that you have ordered, you can go to support.dell.com, or you can call the automated order-status service. A recording prompts you for the information needed to locate and report on your order. For the telephone number to call, see the...
  • Page 62 Toll-free numbers are for use within the country for which they are listed. When you need to contact Dell, use the electronic addresses, telephone numbers, and codes provided in the following table. If you need assistance in determining which codes to use, contact a local or an international operator.
  • Page 63 TechFax 02 22 83 27 28 Switchboard 02 22 83 27 11 Denmark (Copenhagen) Website: support.euro.dell.com     E-mail Support (portable computers): den_nbk_support@dell.com    International Access Code: 00 E-mail Support (desktop computers): den_support@dell.com    Country Code: 45 E-mail Support (servers): Nordic_server_support@dell.com    ...
  • Page 64 El Salvador General Support 01-899-753-0777 Finland (Helsinki) Website: support.euro.dell.com    E-mail: fin_support@dell.com   International Access Code: 990 E-mail Support (servers): Nordic_support@dell.com    Country Code: 358 Technical Support 09 253 313 60 Technical Support Fax 09 253 313 81 City Code: 9 Relational Customer Care 09 253 313 38 Home/Small Business Customer Care 09 693 791 94...
  • Page 65 Technical Support outside of Japan (Dimension and Inspiron) 81-44-520-1435 City Code: 44 Technical Support (Dell Precision™, OptiPlex™, and Latitude™) toll-free: 0120-1984-33 Technical Support outside of Japan (Dell Precision, OptiPlex, and Latitude) 81-44-556-3894 24-Hour Automated Order Service 044 556-3801 Customer Care 044 556-4240 Business Sales Division (up to 400 employees) 044 556-1465...
  • Page 66 Home/Small and Medium Business Customer Care 020 674 42 00 Corporate 020 674 50 00 Corporate Fax 020 674 47 79 Corporate Customer Care 020 674 43 25 New Zealand E-mail (New Zealand): nz_tech_support@dell.com    E-mail (Australia): au_tech_support@dell.com    International Access Code: 00 Home and Small Business 0800 446 255 Country Code: 64 Government and Business 0800 444 617...
  • Page 67   E-mail: swe_support@dell.com   International Access Code: 00 E-mail Support for Latitude and Inspiron:   Swe-nbk_kats@dell.com Country Code: 46 E-mail Support for OptiPlex: Swe_kats@dell.com   City Code: 8 E-mail Support for Servers: Nordic_server_support@dell.com   Technical Support 08 590 05 199 Relational Customer Care 08 590 05 642...

  • Page 68: Regulatory Notices

    Dell Outlet Store (Dell refurbished computers) toll-free: 1-888-798-7561 Software and Peripherals Sales toll-free: 1-800-671-3355 Spare Parts Sales toll-free: 1-800-357-3355 Extended Service and Warranty Sales toll-free: 1-800-247-4618 toll-free: 1-800-727-8320 Dell Services for the Deaf, Hard-of-Hearing, or Speech-Impaired toll-free: 1-877-DELLTTY (1-877-335-5889) U.S. Virgin Islands General Support 1-877-673-3355 Venezuela General Support 8001-3605...

  • Page 69: Fcc Notices (U.s. Only)

    Most Dell computer systems (and other Dell digital apparatus) are classified by the Industry Canada (IC) Interference-Causing Equipment Standard #3 (ICES- 003) as Class B digital devices. To determine which classification (Class A or B) applies to your computer system (or other Dell digital apparatus), examine all registration labels located on the bottom or the back panel of your computer (or other digital apparatus).

  • Page 70: Vcci Notice (Japan Only)

    RF INTERFERENCE WARNING: This is a Class A product. In a domestic environment this product may cause radio frequency (RF) interference, in which case the user may be required to take adequate measures. A "Declaration of Conformity" in accordance with the preceding directives and standards has been made and is on file at Dell Computer Corporation Products Europe BV, Limerick, Ireland.

  • Page 71: Rack Mounting Of Systems

    Back to Contents Page Caution: Safety Instructions Dell™ PowerConnect™ 5224 Systems User's Guide Use the following safety guidelines to ensure your own personal safety and to help protect your system from potential damage. General Observe and follow service markings. Do not service any product except as explained in your system documentation. Opening or removing covers that are marked with the triangular symbol with a lightning bolt may expose you to electrical shock.

  • Page 72: Modems, Telecommunications, Or Local Area Network Options

    NOTE: Your system is safety-certified as a free-standing unit and as a component for use in a Dell rack cabinet using the customer rack kit. The installation of your system and rack kit in any other rack cabinet has not been approved by any safety agencies. It is your responsibility to have the final combination of system and rack kit in a rack cabinet evaluated for suitability by a certified safety agency.
  • Page 73 site. For information about such batteries, refer to the documentation for the specific card or component. Back to Contents Page  ...

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