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Lenovo ThinkSystem NE2572 Installation Manual

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Lenovo ThinkSystem NE2572 RackSwitch

Installation Guide

For Lenovo Cloud Network Operating System

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  Summary of Contents for Lenovo ThinkSystem NE2572

  • Page 1: Installation Guide

    Lenovo ThinkSystem NE2572 RackSwitch Installation Guide For Lenovo Cloud Network Operating System...
  • Page 2 LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925. Lenovo and the Lenovo logo are trademarks of Lenovo in the United States, other countries, or both.
  • Page 3: Table Of Contents

    Other Important Safety Notices ..... ThinkSystem NE2572 ..... . 15 Port Configuration .
  • Page 4 Installing the NE2572 in a Lenovo System x or Power Rack ..40 Installing the NE2572 in a Lenovo iDataPlex Rack ... 44 Installing the Air-Duct Option ....47 Installing a QSFP28 Optical Transceiver .
  • Page 5 Power Specifications ......102 Switching Performance ......103 © Copyright Lenovo 2018 Contents...
  • Page 6 Lenovo NE2572 Installation Guide...
  • Page 7: Safety Information

    Les sikkerhetsinformasjonen (Safety Information) før du installerer dette produktet. Przed zainstalowaniem tego produktu, należy zapoznać się z książką “Informacje dotyczace bezpieczeństwa” (Safety Information). Antes de instalar este produto, leia as Informações sobre Segurança. Перед установкой продукта прочтитe инcтрyкции по тexникe безопасности. © Copyright Lenovo 2018 Safety Information...
  • Page 8 Pred inštaláciou tohto zariadenia si prečítajte Bezpečnostné predpisy. Pred namestitvijo tega proizvoda preberite Varnostne informacije. Antes de instalar este producto, lea la información de seguridad. Läs säkerhetsinformationen innan du installerar den här produkten. Bu ürünü kurmadan önce güvenlik bilgilerini okuyun. Youq mwngz yungh canjbinj neix gaxgonq, itdingh aeu doeg aen canjbinj soengq cungj vahgangj ancien suisik.
  • Page 9: Safety Statements

    Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam. Class 1 Laser Product Laser Klasse 1 Laser Klass 1 Luokan 1 Laserlaite Appareil À Laser de Classe 1 © Copyright Lenovo 2018 Safety Information...
  • Page 10 Statement 5 CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
  • Page 11 Connect and disconnect cables as described in the following table when  you install, move, or open covers on this product or attached devices. © Copyright Lenovo 2018 Safety Information...
  • Page 12 Multiple devices extended into the service position can cause your rack cabinet to tip. If you are not using the Lenovo 9308 rack cabinet, securely anchor the rack  cabinet to ensure its stability.
  • Page 13: Other Important Safety Notices

    This product is also designed for IT power distribution systems with phase-to-phase voltage of 230V. This product is not intended for use in the direct field of view at visual display workplaces. Machinenlärminformations-Verordnung—3. GPSGV, der höchste Shalldruckpegel beträgt 70 dB (A) oder weniger. © Copyright Lenovo 2018 Safety Information...
  • Page 14 NE2572 Installation Guide...
  • Page 15: Thinksystem Ne2572

    This Installation Guide provides information about the Lenovo RackSwitch Lenovo ThinkSystem NE2572 RackSwitch (referred to as NE2572 throughout this document). This Installation Guide provides information about the Lenovo ThinkSystem NE2572 RackSwitch (referred to as NE2572 throughout this document). The NE2572 uses a wire-speed, non-blocking switching fabric that provides simultaneous wire-speed transport of multiple packets at low latency on all ports.
  • Page 16: Ne2572 Documentation

    The console output described or referenced in this document might differ slightly from that displayed by your system. Output varies according to the type of Lenovo chassis and the firmware versions and options that are installed. Notices and Statements in this Document The following notices and statements are used in this document: ...
  • Page 17 Command Reference guide for your specific switch and its installed firmware. For a list of compatible switch components and options (such as rack-mounting kits, modules, cords, and cables), see the Lenovo Networking Catalog. © Copyright Lenovo 2018 Chapter 1: ThinkSystem NE2572...
  • Page 18 NE2572 Installation Guide...
  • Page 19: Switch Components

    Chapter 2. Switch Components This chapter describes the NE2572 hardware components. © Copyright Lenovo 2018...
  • Page 20: Switch Unit

    The following illustrations show the features on the front and rear of the switch. Figure 1. ThinkSystem NE2572 front panel 25 GbE SFP28 Ports Management Panel 100 GbE QSPF28 Ports Figure 2. ThinkSystem NE2572 management panel detail Status Micro-USB LEDs Type A Port...
  • Page 21: Management Panel

    Console cable RJ45 port connector pin assignments Pin Number Function RTS (Request To Send) DTR (Data Terminal Ready) TxD (Transmit Data) GND (Ground) GND (Ground) RxD (Receive Data) DSR (Data Set Ready) CTS (Clear To Send) © Copyright Lenovo 2018 Chapter 2: Switch Components...
  • Page 22: Rj45 Management Port

    RJ45 Management Port The RJ45 management port on the front panel supports 10/100/1000BASE-T, in-line switch management. To attach an RJ45 connector to the switch, push the RJ45 cable connector into the port connector until it clicks into place. To disconnect the RJ45 cable, squeeze the release tab and gently pull the cable connector out of the switch connector.
  • Page 23: System Status Leds

    Files can be copied from the USB drive to the switch, but copying files to the NTFS formatted USB drive results in failure. For more information about using the USB drive, see the Lenovo ThinkSystem NE2572 RackSwitch Release Notes.
  • Page 24: Switching Ports

    NE2572# configure [device] NE2572(config)# hardware profile portmode custom 4x10G ethernet 1/21-24 For a list of compatible transceivers and DACs, see the Lenovo Networking Catalog. The switching ports are described in the following sections. For information about ports on the management panel, see “Management Panel”...
  • Page 25: Sfp28 Leds

    Secure 25 Gbps connection or link Flashing amber Packet transmitting or receiving Solid green Secure 10/25 Gbps connection or link Flashing green Packet transmitting or receiving Light off Link down or port disabled © Copyright Lenovo 2018 Chapter 2: Switch Components...
  • Page 26: Rear Panel

    Compatible fan options are listed in the Lenovo Networking Catalog. Fan operation and internal temperatures are monitored. If the air temperature exceeds a desired threshold, the environmental monitor displays warnings.
  • Page 27: Power Supply

    Connect and disconnect cables as described in the following table when  you install, move, or open covers on this product or attached devices. © Copyright Lenovo 2018 Chapter 2: Switch Components...
  • Page 28 To Connect: To Disconnect: 1.Turn OFF all power sources and 1.Turn OFF all power sources and equipment that is to be attached to equipment that is to be attached to this product. this product. For ac systems, remove all power ...
  • Page 29: Power Leds

    Power supply warning event (continuing operation): high temperature, high power, high current, or slow power supply fan. Solid Amber Power supply shutdown from critical event: power supply failure, over-voltage, over-current, over-temperature, power supply fan failure, AC cord unplugged. © Copyright Lenovo 2018 Chapter 2: Switch Components...
  • Page 30 NE2572 Installation Guide...
  • Page 31: Installing Ne2572 Hardware And Options

    Installing the switch in one of the supported rack types “Installing the NE2572 in a Standard Equipment Rack” on page 37  “Installing the NE2572 in a Lenovo System x or Power Rack” on page 40   “Installing the Air-Duct Option” on page 47 Note: For information on removing or replacing installed NE2572 components, see Chapter 4, “Removing and Replacing...
  • Page 32: Before Installing The Ne2572

    Print this page and record product information below. Keep the information in a safe place for future reference. You will need this information when you register the switch or open a service call with Lenovo. Table 8. Important product information...
  • Page 33: Required Tools

    Electrostatic discharge wrist strap  Package Contents The basic NE2572 package contains the following items:  One ThinkSystem NE2572 unit with front-to-rear or rear-to-front airflow  One two-post mounting kit for standard 19” equipment racks: Two mounting brackets  Screws to attach brackets to the switch unit ...
  • Page 34: Preventing Electric Shock

    Preventing Electric Shock This product does not contain any user-serviceable parts. Do not remove the cover of this device. The NE2572 AC power module is designed to work with single-phase power systems that have a grounded neutral conductor. For your safety, a power cord with a ground attachment plug is available to order for use with this product.
  • Page 35 3. Remove all cables from the 4. Attach signal cables to other devices. devices. 5. Connect power cords to their sources. 6. Turn ON all the power sources. © Copyright Lenovo 2018 Chapter 3: Installing NE2572 Hardware and Options...
  • Page 36: Handling Static-Sensitive Devices

    Handling Static-Sensitive Devices Attention: Static electricity can damage the switch and other electronic devices. To avoid damage, keep static-sensitive devices in their static-protective packages until you are ready to install them. To reduce the possibility of electrostatic discharge, observe the following precautions: Limit your movement.
  • Page 37: Installing The Ne2572 In A Rack

    For a standard 19-inch equipment rack, use the 2-post rack mounting brackets and screws included with the switch. Installation instructions begin on page For a Lenovo System x or Power 4-post rack, use the Lenovo Adjustable 19”  4-Post Rail Kit. This kit must be purchased separately. Installation instructions...
  • Page 38 Statement 26 CAUTION: Do not place any object on top of rack-mounted devices. To install the NE2572 in a standard equipment rack, complete the following steps: 1. Locate, record, and retain the product switch information in order to configure and register your product.
  • Page 39 6. Initialize the switch. See Chapter 5, “Initializing the NE2572“, on page 7. If the switch is a replacement unit, set Vital Product Data (see “Configuring Vital Product Data” on page 66). © Copyright Lenovo 2018 Chapter 3: Installing NE2572 Hardware and Options...
  • Page 40: Installing The Ne2572 In A Lenovo System X Or Power Rack

    Installing the NE2572 in a Lenovo System x or Power Rack This section describes how to install the NE2572 in a Lenovo System x or Power 4-post rack, using the Lenovo Adjustable 19” 4-Post Rail Kit. This kit must be purchased separately. It includes the following parts: Table 10.
  • Page 41 2. Attach the front mounting brackets (Item 1) to each side of the switch with M4 screws (Item 2). Torque the screws to approximately 2.0 newton-meters (Nm) ± 0.1 Nm (17.7 inch-pounds). © Copyright Lenovo 2018 Chapter 3: Installing NE2572 Hardware and Options...
  • Page 42 3. From the front, slide the switch into the rack at the desired height. 4. Secure the switch to the front rack posts with M6 screws (Item 3) and either clip nuts (Item 4) or cage nuts (Item 5). Torque the screws to approximately 5.7 Nm ± 0.1 Nm (50 inch-pounds).
  • Page 43 10. Initialize the switch. See Chapter 5, “Initializing the NE2572“. 11. If the switch is a replacement unit, set Vital Product Data (see “Configuring Vital Product Data” on page 66). © Copyright Lenovo 2018 Chapter 3: Installing NE2572 Hardware and Options...
  • Page 44: Installing The Ne2572 In A Lenovo Idataplex Rack

    Installing the NE2572 in a Lenovo iDataPlex Rack This section describes how to install the NE2572 in a Lenovo iDataPlex rack. The iDataPlex mounting kit allows the switch to be mounted either horizontally or vertically. The kit must be purchased separately. It includes the following parts: Table 11.
  • Page 45 4. Secure the switch to the front rack posts with M6 screws (Item 3), and clip nuts (Item 4). Torque the screws to approximately 5.7 Nm +/- 0.1 Nm (50 inch-pounds). © Copyright Lenovo 2018 Chapter 3: Installing NE2572 Hardware and Options...
  • Page 46 5. Attach the rear alignment plate (Item 6) to the rear rack posts with M6 screws (Item 3), and clip nuts (Item 4). Torque the screws to approximately 5.7 Nm +/- 0.1 Nm (50 inch-pounds). 6. If installing the 1U air-duct option, see the instruction on page 7.
  • Page 47: Installing The Air-Duct Option

    If the switch has an undesirable amount of sag, it is recommended to use a 4-post mounting kit. Attention: For earthquake stability, mount the switch in a 4-post rack. © Copyright Lenovo 2018 Chapter 3: Installing NE2572 Hardware and Options...
  • Page 48 Statement 26 CAUTION: Do not place any object on top of rack-mounted devices. To install the 1U air-duct option in a 19” rack, complete the following steps: 1. Loosen and remove the mounting screws from both sides of the mounting rail and set them aside to reuse for securing the foam carrier in the next step.
  • Page 49 5. Plug the power cords into their respective NE2572 power connectors and using tie wraps, secure the power cords to the mounting rails. Power connection Tie wraps Tie wraps Power connection © Copyright Lenovo 2018 Chapter 3: Installing NE2572 Hardware and Options...
  • Page 50 6. Gently slide the air-duct unit side flanges into the card guides until the unit is seated firmly. Make sure that the foam strip is oriented on top. Foam Card guides thumbscrews Side flanges 7. Secure the air-duct unit to the air-duct brackets with the two M4 thumbscrews. NE2572 Installation Guide...
  • Page 51: Installing A Qsfp28 Optical Transceiver

    Class 1 Laser Product Laser Klasse 1 Laser Klass 1 Luokan 1 Laserlaite Appareil À Laser de Classe 1 © Copyright Lenovo 2018 Chapter 3: Installing NE2572 Hardware and Options...
  • Page 52 To install a QSFP28 optical transceiver in a QSFP28 port, complete the following steps. Note: To avoid damage to the cable or the QSFP28 transceiver, do not connect the cable before you install the transceiver. 1. Remove the safety cap and pull the locking lever into the down (unlocked) position.
  • Page 53: Removing And Replacing Components

    Removing the switch from one of the supported rack types  “Removing the NE2572 from a Standard Equipment Rack” on page 60  “Removing the NE2572 from a Lenovo System x or Power Rack” on page 61   “Removing the Air-Duct Option” on page 65 ...
  • Page 54: Removing And Replacing A Power Supply Module

    Removing and Replacing a Power Supply Module The rear panel of the NE2572 has two bays for hot-swap power supply modules. Two active power supply modules are required for load-sharing and redundancy. If one power supply module fails, you can replace it without powering off the switch or disrupting switch functions.
  • Page 55: Removing The Power Supply Module

    “Getting Help and Technical Assistance“ to help you gather all the required information that is necessary to return a component. After you remove the component, securely pack the component for shipping. © Copyright Lenovo 2018 Chapter 4: Removing and Replacing Components...
  • Page 56: Replacing The Power Supply Module

    Replacing the Power Supply Module Statement 31 DANGER Electrical current from power, telephone, and communication cables is hazardous. To avoid a shock hazard:  Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm. ...
  • Page 57 3. Connect the power cord to the power supply module and to an appropriate universal grounded AC power source. 4. Make sure that the power supply module’s LEDs are green. © Copyright Lenovo 2018 Chapter 4: Removing and Replacing Components...
  • Page 58: Removing And Replacing A Fan Module

    Removing and Replacing a Fan Module The rear panel of the NE2572 has Six bays for hot-swap fan modules. Six active fan modules are required for redundancy. With active fan modules in all fan bays, if one fan fails, the switch will send an error message and continue operation.
  • Page 59: Replacing The Fan Module

    4. Tighten the retaining screw on the fan module. Torque the screw to approximately 0.25 Nm +/- 0.1 Nm (2 inch-pounds). 5. Make sure that the fan module’s LED is lit. © Copyright Lenovo 2018 Chapter 4: Removing and Replacing Components...
  • Page 60: Removing The Ne2572 From A Standard Equipment Rack

    Removing the NE2572 from a Standard Equipment Rack This section describes how to remove the NE2572 from a standard 19-inch equipment rack. For information about removing the switch from other supported racks, see the appropriate section in this chapter. To remove the NE2572 from a standard rack, complete the following steps: 1.
  • Page 61: Removing The Ne2572 From A Lenovo System X Or Power Rack

    Removing the NE2572 from a Lenovo System x or Power Rack This section describes how to remove the NE2572 from a Lenovo System x or Power 4-post rack. To remove the NE2572 from a System x or Power rack, complete the following steps: 1.
  • Page 62 6. Loosen and remove the M6 screws and clip nuts (or cage nuts) connecting the front mounting brackets to the front rack posts. 7. Slide the NE2572 unit out of the rack. 8. Loosen and remove the M4 screws that attach the front mounting brackets to each side of the switch.
  • Page 63: Removing The Ne2572 From A Lenovo Idataplex Rack

    Removing the NE2572 from a Lenovo iDataPlex Rack This section describes how to remove the NE2572 from a Lenovo iDataPlex rack. To remove the NE2572 from an iDataPlex rack, complete the following steps: 1. Disconnect all external cables. 2. If the 1U air-duct option has been installed, remove it as described in “Removing...
  • Page 64 5. Slide the switch out of the rack. 6. Loosen and remove the M4 screws that attach front and rear mounting brackets to each side of the switch. 7. If replacing the unit with another NE2572, see “Replacing the NE2572” on page NE2572 Installation Guide...
  • Page 65: Removing The Air-Duct Option

    Removing the Air-Duct Option The NE2572 supports an optional 1U air duct to maximize air flow conditions in a Lenovo Power Systems Group rack. To remove an installed 1U air-duct option from a 19” rack, complete the following steps. 1. Loosen the M4 thumbscrews securing the air-duct unit to the mounting brackets.
  • Page 66: Replacing The Ne2572

    Replacing the NE2572 Preparing and Returning the NE2572 If replacing the NE2572, remove all associated components and options according to the instructions in this chapter. Remove and retain clips, cords, cables, modules, caps or blanks, air-duct option (if installed), and any mounting hardware. These items can then be reinstalled on the replacement unit.
  • Page 67 System Serial Number: XX01234567 For more information about using the switch interface, see the Application Guide and Command Reference for the NE2572 and its corresponding Lenovo Network Operating System and firmware version. © Copyright Lenovo 2018 Chapter 4: Removing and Replacing Components...
  • Page 68 NE2572 Installation Guide...
  • Page 69: Initializing The Ne2572

    The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. © Copyright Lenovo 2018...
  • Page 70: System Status Leds

    System Status LEDs The following LEDs on the switch front panel indicate the overall system status:  Power - Steady green if the both power cords are connected, or flashing green if the only one power cord is connected. Service - Off if the system is OK, or flashing if service is required.
  • Page 71: Connecting To The Switch

    If the switch is connected to a network that employs DHCP, you can also access the switch CLI through the RJ45 management port. This port uses Ethernet communications and can be accessed using Telnet or SNMP via the IP address provided by the network’s DHCP server. © Copyright Lenovo 2018 Chapter 5: Initializing the NE2572...
  • Page 72: Logging Into The Switch

    Note: If the switch has already started prior to your connection, you may need to press Enter to display the password prompt. After successfully logging into the switch, the following CLI prompt will be displayed: NOS version 10.4.2.0 LENOVO NE2572, Thu Feb 9 16:09:11 PST 2017 NE2572> NE2572 Installation Guide...
  • Page 73: Default Configuration Files

    Enter y at the prompt to confirm the erasing process and then reload the switch: NE2572# reload  Using Rescue Mode available from the GRUB Menu. For more details, see “The GRUB Menu” on page © Copyright Lenovo 2018 Chapter 5: Initializing the NE2572...
  • Page 74: Configuring The Management Interface For Remote Access

    Configuring the Management Interface for Remote Access To manage the switch remotely using Telnet or SNMP you must first configure the management interface. You can use DHCP to automatically configure the interface (enabled by default), or you can manually configure the following IP parameters: IP address and subnet mask ...
  • Page 75: Out-Of-Band Management Interface Configuration

    NE2572# configure [device] NE2572(config)# 3. Configure the in-band management IP address: NE2572(config)# interface vlan 1 NE2572(config-if)# ip address 10.254.87.6/24 NE2572(config-if)# exit NE2572(config)# 4. Configure the in-band default gateway: NE2572(config)# ip route 0.0.0.0/0 205.21.17.1 © Copyright Lenovo 2018 Chapter 5: Initializing the NE2572...
  • Page 76: Updating Firmware

    Updating Firmware If firmware updates are available, you can download them from the Lenovo website. The switch might have features that are not described in the documentation that comes with the switch, and the documentation might be updated occasionally to include information about those features, or technical updates might be available to provide additional information that is not included in the switch documentation.
  • Page 77: The Grub Menu

    The GRUB Menu The Lenovo ThinkSystem NE2572 RackSwitch does not use a Boot Management menu. Instead, all images are preloaded, and all booting options, such as switching boot images, are included in the GNU GRUB bootloader. To boot CNOS or switch images on the NE2572: 1.
  • Page 78: Rescue Mode

    Rescue Mode The Rescue Mode option allows you to recover from a failed firmware or boot image upgrade using TFTP or a USB drive. To enter Rescue Mode, select Recovery Mode in the GRUB menu. The following menu appears. Entering Rescue Mode. Please select one of the following options: T) Configure networking and tftp download an image U) Install image from USB stick...
  • Page 79: Troubleshooting

    If you have problems accessing the switch or working with the firmware, see the NE2572 Application Guide and/or the Command Reference. For information about calling Lenovo for service, see Appendix A, “Getting Help and Technical Assistance“.
  • Page 80: System Led Is Not Lit

    System LED Is Not Lit Symptom: The power supply LED is not lit. Solution: Check the power supply to make sure that there is a proper connection to the power source. Make sure that power is available from the power source. NE2572 Installation Guide...
  • Page 81: Port Link Led Is Not Lit

    Solution 2: Check the cables that connect the port to the other device. Make sure that they are connected correctly. Make sure that you are using the correct cable type. © Copyright Lenovo 2018 Chapter 6: Troubleshooting...
  • Page 82: Temperature Sensor Warning

    Make sure that all cooling fans inside the switch are running. A fan module LED (rear panel) flashes if there is a failure of the fan. The following CLI command displays fan status: Lenovo Cloud Network Operating System (CNOS):  NE2572> display sys-info If any fan stops during switch operation, contact Customer Support.
  • Page 83: Switch Does Not Initialize (Boot)

    Symptom: All the switch LEDs stay on, and the command prompt is not displayed on the console. Solution: The operating system might be damaged. Use the console port to perform a serial upgrade of the switch firmware. See the Command Reference. © Copyright Lenovo 2018 Chapter 6: Troubleshooting...
  • Page 84 NE2572 Installation Guide...
  • Page 85: Getting Help And Technical Assistance

    Lenovo to assist you. Use this information to obtain additional information about Lenovo and Lenovo products, and determine what to do if you experience a problem with your Lenovo system or optional device. Note: This section includes references to IBM web sites and information about obtaining service.
  • Page 86 You can solve many problems without outside assistance by following the troubleshooting procedures that Lenovo provides in the online help or in the Lenovo product documentation. The Lenovo product documentation also describes the diagnostic tests that you can perform. The documentation for most systems, operating systems, and programs contains troubleshooting procedures and explanations of error messages and error codes.
  • Page 87: Notices

    Web sites. The materials at those Web sites are not part of the materials for this Lenovo product, and use of those Web sites is at your own risk.
  • Page 88 Any performance data contained herein was determined in a controlled environment. Therefore, the result obtained in other operating environments may vary significantly. Some measurements may have been made on development-level systems and there is no guarantee that these measurements will be the same on generally available systems.
  • Page 89: Trademarks

    Trademarks Lenovo, the Lenovo logo, Flex System, System x, NeXtScale System, and X-Architecture are trademarks of Lenovo in the United States, other countries, or both. Intel and Intel Xeon are trademarks of Intel Corporation in the United States, other countries, or both.
  • Page 90: Important Notes

    (TBW). A device that has exceeded this limit might fail to respond to system-generated commands or might be incapable of being written to. Lenovo is not responsible for replacement of a device that has exceeded its maximum guaranteed number of program/erase cycles, as documented in the Official Published Specifications for the device.
  • Page 91: Recycling Information

    Recycling Information Lenovo encourages owners of information technology (IT) equipment to responsibly recycle their equipment when it is no longer needed. Lenovo offers a variety of programs and services to assist equipment owners in recycling their IT products. For information on recycling Lenovo products, go to: http://www.lenovo.com/recycling...
  • Page 92: Particulate Contamination

    If Lenovo determines that the levels of particulates or gases in your environment have caused damage to the device, Lenovo may condition provision of repair or replacement of devices or parts on implementation of appropriate remedial measures to mitigate such environmental contamination.
  • Page 93: Telecommunication Regulatory Statement

    This product may not be certified in your country for connection by any means whatsoever to interfaces of public telecommunications networks. Further certification may be required by law prior to making any such connection. Contact a Lenovo representative or reseller for any questions. © Copyright Lenovo 2018 Appendix B: Notices...
  • Page 94: Electronic Emission Notices

    Properly shielded and grounded cables and connectors must be used to meet FCC emission limits. Lenovo is not responsible for any radio or television interference caused by using other than recommended cables and connectors or by unauthorized changes or modifications to this equipment.
  • Page 95: European Union - Compliance To The Electromagnetic Compatibility Directive

    Grenzwerte der Klasse A der Norm gemäß Richtlinie. Um dieses sicherzustellen, sind die Geräte wie in den Handbüchern beschrieben zu installieren und zu betreiben. Des Weiteren dürfen auch nur von der Lenovo empfohlene Kabel angeschlossen werden. Lenovo übernimmt keine Verantwortung für die Einhaltung der Schutzanforderungen, wenn das Produkt ohne Zustimmung...
  • Page 96: Japan Vcci Class A Statement

    Dieses Gerät ist berechtigt, in Übereinstimmung mit dem Deutschen EMVG das EG-Konformitätszeichen - CE - zu führen. Verantwortlich für die Konformitätserklärung nach Paragraf 5 des EMVG ist die Lenovo (Deutschland) GmbH, Meitnerstr. 9, D-70563 Stuttgart. Informationen in Hinsicht EMVG Paragraf 4 Abs. (1) 4: Das Gerät erfüllt die Schutzanforderungen nach EN 55024 und EN 55022 Klasse A.
  • Page 97: Korea Communications Commission (Kcc) Statement

    This is for any areas other than home. Russia Electromagnetic Interference (EMI) Class A statement People’s Republic of China Class A electronic emission statement Taiwan Class A compliance statement © Copyright Lenovo 2018 Appendix B: Notices...
  • Page 98: Taiwan Bsmi Rohs Declaration

    Taiwan BSMI RoHS declaration 設備名稱:三層交換器 ,型號 (型式) :NE2572 Equipment Name , Type Designation (Type) 單元 限用物質及其化學符號 Unit Restricted Substances and their Chemical Symbols 鉛 汞 鎘 六價鉻 多溴聯苯 多溴二苯醚 Mercury Cadmium Hexavalent  Polybrominated  Polybrominated  Lead (Pb) (Hg) (Cd) chromium biphenyls diphenyl ethers (PBDE) (PBB)
  • Page 99: Technical Specifications

    Appendix C. Technical Specifications The NE2572 technical specifications are described in the following sections. © Copyright Lenovo 2018...
  • Page 100: Physical Characteristics

    Physical Characteristics The physical characteristics of the NE2572 are listed in the following table. Table 13. Physical characteristics Specification Physical characteristics Dimensions (H x W x D) 4.4 x 43.9 x 48.7cm (1.73 x 17.3 x 19.2 in) Weight 11.5 kg (25 lb) maximum Airflow Available options for rear to front, or front to rear airflow...
  • Page 101: Environmental Specifications

    Relative humidity (non-condensing), 5 to 95% storage Altitude, operating -60 m to +2000 m (-196.85 to +6561.7 ft) Altitude, storage Acoustic noise Less than 90dB Heat dissipation 728 BTU/h (typical) 1267 BTU/h (maximum) © Copyright Lenovo 2018 Appendix C: Technical Specifications...
  • Page 102: Power Specifications

    Power Specifications The power specifications for the NE2572 are listed in the following table. Table 15. NE2572 AC power specifications Specification Measurement Number of power supplies 2 (1+1 load sharing/redundant) AC-input frequency (universal) 50–60 Hz AC-input voltage (universal) 100–240 VAC AC inrush current 8.34 A @ 120VAC (typical) 17.9 A @ 230VAC (typical)
  • Page 103: Switching Performance

    Note: The specific features supported on your switch, as well as some capacity and performance characteristics, depend on the specific firmware installed. For more information, see the Application Guide and Command Reference for your specific switch and its installed firmware. © Copyright Lenovo 2018 Appendix C: Technical Specifications...
  • Page 104 NE2572 Installation Guide...