Arista 7280 Series Quick Start Manual
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Arista 7280 Series Quick Start Manual

Data center switches
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Quick Start Guide
7280 Series 1 RU (Gen 3)
Data Center Switches
Arista Networks
www.arista.com
PDOC-00144-05

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  • Page 1 Quick Start Guide 7280 Series 1 RU (Gen 3) Data Center Switches Arista Networks www.arista.com PDOC-00144-05...
  • Page 2 © Copyright 2022 Arista Networks, Inc. The information contained herein is subject to change without notice. Arista Networks and the Arista logo are trademarks of Arista Networks, Inc in the United States and other countries. Other product or service names may be trademarks or service marks of others.

  • Page 3: Table Of Contents

    Contents Contents Chapter 1: Overview................1 1.1 Scope............................1 1.2 Receiving and Inspecting the Equipment................1 1.3 Installation Process.........................1 1.4 Safety Information........................2 1.5 Obtaining Technical Assistance..................... 2 1.6 Specifications.......................... 3 Chapter 2: Preparation................7 2.1 Site Selection..........................7 2.2 Tools and Parts Required for Installation................9 2.3 Electrostatic Discharge (ESD) Precautions................
  • Page 4 B.3 Ground Extender Kit (Optional)....................36 Appendix C: Front Panel..............37 Appendix D: Rear Panel............... 45 Appendix E: Maintenance and Field Replacement......47 E.1 Considerations........................47 E.2 Power Supplies........................47 E.2.1 Removing a Power Supply..................47 E.2.2 Installing a Power Supply..................48 E.3 Fan Modules.........................48 E.3.1 Removing a Fan Module..................

  • Page 5: Chapter 1: Overview

    Chapter 1 Overview This guide is intended for properly trained service personnel and technicians who need to install selected Arista Networks Data Center Switches. The following topics are covered in this section: • Scope • Receiving and Inspecting the Equipment •...

  • Page 6: Safety Information

    Refer to the Arista Networks document Safety Information and Translated Safety Warnings available at: https://www.arista.com/en/support/product-documentation. Obtaining Technical Assistance Any customer, partner, reseller or distributor holding a valid Arista Service Contract can obtain technical support in any of the following ways. •...

  • Page 7: Specifications

    Aucune pièce réparable par l'utilisateur à l'intérieur. Confiez toute réparation à un technicien qualifié. Specifications List of specifications of Arista data center modular switches and components covered by this guide. Table 1: Switch Specifications (Dimensions and Weights) Switch Size (W x H x D)
  • Page 8 DCS-7280DR3-24 48.3 x 4.4 x 57.4 cm (19 x 1.75 13.1 kg (29.0 lbs.) x 22.6 inches) DCS-7280PR3-24 48.3 x 4.4 x 58.2 cm (19 x 1.75 12.7 kg (28.0 lbs.) x 23.6 inches) DCS-7280SR3-48YC8 48.3 x 4.4 x 46.7 cm (19 x 1.75 9.2 kg (20.2 lbs.) x 18.4 inches) DCS-7280SR3K-48YC8...
  • Page 9 39.5 A -48 to -60 VDC 52 A Note: All PSU models are not supported by all switches. Some switches described in this guide could use power supplies that may no longer be available. Contact your local Arista representative for more information.
  • Page 10 DCS-7280CR3-36S 254 W / 423 W PWR-1011-AC, PWR-1011-DC DCS-7280CR3K-36S 254 W / 423 W PWR-1011-AC, PWR-1011-DC...

  • Page 11: Chapter 2: Preparation

    Airflow Orientation: The fans and PSUs determine the airflow direction through the switch. The color of the visible handles or labels indicate the airflow direction. Note: The figures shown use representative Arista switches to illustrate airflow directions. Refer to Rear Panel to determine the airflow for your switch.
  • Page 12 Figure 2: Air Exit Module Orient the switch such that the airflow through the switch is from the cooler to the hotter aisle. If the airflow direction is not compatible with the installation site, reorient the fan modules to circulate air in the opposite direction.

  • Page 13: Tools And Parts Required For Installation

    Preparation Fan module 1 Power supply module 2 10 Fan module 2 status LED label Fan module 2 Fan module handl 11 Fan module 1 status LED Fan module 3 Fan module 4 status LED 12 PSU 1 status LED Note: Handle or label color indicates airflow direction.
  • Page 14 • Keep replacement parts in their original static-free packaging. • Remove all plastic, foam, vinyl, paper, and other static-generating materials from the work area. • Use tools that do not create ESD.

  • Page 15: Chapter 3: Rack Mounting The Switch

    Chapter 3 Rack Mounting the Switch The following topics are covered in this section: • Two-Post Rack Mount Note: Use the rack-mount parts included with your switch for mounting. For heavier switches, only four-post mount is supported. • Attaching Mounting Brackets to the Chassis (Two-Post) •...
  • Page 16 Figure 4: Bracket Mount Examples for Two-Post Rack Mount Note: Center mount is recommended, especially for heavier switches. The following figure displays improper bracket mounts for two-post rack mount. Figure 5: Improper Bracket Mount Examples for Two-Post Rack Mount The following procedure attaches the two-post rack mount brackets to the chassis. 1.

  • Page 17: Inserting The Switch Into The Rack (Two-Post)

    Rack Mounting the Switch 3.1.2 Inserting the Switch into the Rack (Two-Post) This procedure attaches the switch to the rack. 1. Lift the chassis into the rack. Position the flanges against the rack posts. 2. Select mounting screws that fit your equipment rack. 3.

  • Page 18: Attaching Mounting Brackets To The Chassis (Four-Post)

    The following figure displays an improper bracket mount configuration example. Figure 9: Improper Bracket Mount Example for Four-Post Rack Mount 3.2.1 Attaching Mounting Brackets to the Chassis (Four-Post) The following figure displays the front bracket alignment for mounting the switch into a four-post rack. Figure 10: Attaching the Mounting Brackets to the Switch Chassis This procedure attaches mounting brackets to the switch chassis as depicted by the preceding figure.
  • Page 19 Rack Mounting the Switch Figure 11: Attaching the Four-Post Mounting Brackets to the Switch Chassis Step 1 Bracket clip (attached) Step 2 Bracket clip (aligned) Step 3 This procedure attaches the rails to a four post rack: 1. Slide a rail-rod into a rail-slide (Figure 12: Assembling the Rails) until the rail clip makes an audible click.

  • Page 20: Attaching The Switch To The Rack

    Figure 13: Attaching the Rails Inset A Inset B 3.2.3 Attaching the Switch to the Rack After the rails are installed, the switch slides on the rails into the rack. Each bracket includes a thumb screw that attaches the switch to the rail. 1.
  • Page 21 Rack Mounting the Switch Figure 15: Attaching the Switch to the Rack Posts After completing the four-post rack mount, proceed to Cabling the Switch.

  • Page 23: Chapter 4: Cabling The Switch

    DC Power Supplies • Connecting Serial and Management Cables Note: Arista fixed switches take approximately 5 to 10 minutes to boot completely. Grounding the Switch After mounting the switch into the rack, connect the switch to the data center ground.

  • Page 24: Grounding Adapter Assembly (Kit-Gnd-Ext-1Ru)

    Figure 17: Earth Grounding Pad Sockets for Models with Management Ports on the Rear Panel Earth grounding pads Figure 18: Earth Grounding Adapter for DCS-7280CR3-32P4 Grounding Adapter Assembly (KIT-GND-EXT-1RU) The following steps assemble and attach a grounding assembly to the chassis before mounting it into the rack.

  • Page 25: Connecting Power Cables

    Power cords are optional and must be ordered separately. You must use an approved power cord compliant with local and national electrical codes or order one from Arista for use with the device. Important: Installation of this equipment must comply with local and national electrical codes.

  • Page 26: Ac Power Supplies

    Cet équipement doit être mis à la terre. Ne jamais modifier le conducteur de terre. Important: This unit requires overcurrent protection. Cet appareil requiert une protection contre les surintensités. 4.3.1 AC Power Supplies The following AC power supplies are supported. PWR-500AC PWR-745AC PWR-1011-AC...
  • Page 27 Cabling the Switch Important: A disconnect device must be provided as part of the installation . Un dispositif de sectionnement doit être fourni dans le cadre de l'installation. Important: Ensure power is removed from DC circuits before performing any installation actions.

  • Page 28: Connecting Serial And Management Cables

    7. Shrink the tubing with a heat gun. Figure 22: Lug Preparation Insulated wire 1/2” Heat-shrink tubing 1/4” 5/8” Note: Dimension B is the width of the lug (not visible on the right angle lug). 4.3.2.2 Connecting a DC Power Supply to Power Source Figure 23: DC PSU Connection Example displays an example of connecting a PSU.
  • Page 29 Cabling the Switch Table 7: RJ-45 to DB-9 Connections RJ-45 DB-9 RJ-45 DB-9 Note: RJ-45 to DB-9 connections: For models with a console management port on the rear panel, RJ-45 pin 1 (RTS) is connected to RJ-45 pin 8 (CTS); RJ-45 pin 2 (DTR) and RJ-45 pin 7 (DSR) are not electrically connected to any signal.
  • Page 30 2 Ethernet management port 4 Console serial port 6 Link status LED Connect the front or rear panel ports as follows: • Console (Serial) Port: Connect to a PC with the RJ-45 to DB-9 serial adapter cable. The switch uses the following default settings: •...

  • Page 31: Chapter 5: Configuring The Switch

    Chapter 5 Configuring the Switch Arista switches ship from the factory in Zero Touch Provisioning (ZTP) mode. ZTP configures the switch without user intervention by downloading a startup configuration file or a boot script from a location specified by a DHCP server.
  • Page 32 When the management port IP address is configured, use this command to access the switch from a host, using the address configured in step 9. ssh admin@192.0.2.8 Refer to the Arista Networks User Manual for complete switch configuration information.

  • Page 33: Appendix A: Status Indicators

    Appendix A Status Indicators The following topics are covered in this section: • Front Indicators • Switch Indicators • Port Indicators • Rear Status Indicators Front Indicators Reviews the Switch and Port Indicators of the device. A.1.1 Switch Indicators Front panel LEDs are located on the right side of the chassis and display system, fan, and power supply status.

  • Page 34: Port Indicators

    Table 8: Switch Indicators LED States (Front) LED Name LED State Device Status System Status LED Blinking Green System is powering up. Green Normal operations. Due to power supply and fan redundancy, this LED will remain green if a single fan or power supply is missing or in a failed state.

  • Page 35: Rear Status Indicators

    Status Indicators Table 9: Port LED States (Front) LED State Status Port link is down. Green Port link is up. Yellow Port is software disabled. Flashing Yellow Port failed diagnostics. Rear Status Indicators Fan and power supply modules are accessed from the rear panel. Each fan and power supply module contains an LED that reports the module status.
  • Page 36 Figure 30: AC Power Supply Status LED Power supply status Table 11: AC Power Supply Status LED States (Rear) provides status conditions that correspond to the AC power supply status LED states. Table 11: AC Power Supply Status LED States (Rear) Power Supply State PWR-500AC-F PWR-745AC-F...
  • Page 37 Note: You can narrow down the error condition by logging in to the switch to view the specific device state. Refer to the Arista User Manual’s Switch Environment Control chapter, under the topic Viewing Environment Status, for further information on the show environment...

  • Page 39: Appendix B: Parts List

    Appendix B Parts List This appendix lists the installation parts contained in the switch accessory kit. Each switch provides an accessory kit that contains parts that are required to install the switch. The following topics are covered in this section: •...

  • Page 40: Cables

    Power cables: IEC-320/C13-C14, 13 A, 250 V RJ-45 Patch Panel Cable RJ-45 to DB9 Adapter Cable Warning: All provided power cables are for use only with Arista products. Ground Extender Kit (Optional) Lists the cables required for installation of the device.

  • Page 41: Appendix C: Front Panel

    Appendix C Front Panel This appendix displays the front panel of all switches covered by this guide. Note: All devices are designed to fit into a 19” rack. The appearance may be different than those shown based on PSU and fan modules used. Figure 34: DCS-7280SE-64 Console port (serial) Power supply 1 status...
  • Page 42 Figure 36: DCS-7280SE-72 Console port (serial) Power supply 1 status Ethernet Management port System status LED Power supply 2 status Port numbers Fan status LED USB port Figure 37: DCS-7280QR-C36 Console port (serial) Power supply 1 status Ethernet Management port System status LED Power supply 2 status Port numbers...
  • Page 43 Front Panel Fan status LED Power supply 2 status Port numbers Figure 39: DCS-7280SR2A-48YC6 System status LED Power supply 1 status USB port Fan status LED Power supply 2 status Port numbers Figure 40: DCS-7280TRA-48C6 System status LED Power supply 1 status USB port Fan status LED Power supply 2 status...
  • Page 44 Figure 42: DCS-7280SRAM-48C6 System status LED Power supply 1 status USB port Fan status LED Power supply 2 status Port numbers Figure 43: DCS-7280SR-48C6 System status LED Power supply 1 status USB port Fan status LED Power supply 2 status Port numbers Figure 44: DCS-7280SR2-48YC6 System status LED...
  • Page 45 Front Panel Figure 45: DCS-7280SRA-48C6 System status LED Power supply 1 status USB port Fan status LED Power supply 2 status Port numbers Figure 46: DCS-7280SR2K-48C6 System status LED Power supply 1 status Port numbers Fan status LED Power supply 2 status Figure 47: DCS-7280SRM-40CX2 1 Ethernet Management port 4 Power supply 1 status 7 Console port (serial)
  • Page 46 Figure 48: DCS-7280CR3-32D4 and DCS-7280CR3K-32D4 System status LED Power supply 1 status Port numbers Fan status LED Power supply 2 status Port-speed group Figure 49: DCS-7280CR3-32P4 and DCS-7280CR3K-32P4 System status LED Power supply 1 status Port numbers Fan status LED Power supply 2 status Port-speed group Figure 50: DCS-7280DR3-24 and DCS-7280DR3K-24...
  • Page 47 Front Panel Figure 51: DCS-7280PR3-24 and DCS-7280PR3K-24 System status LED Power supply 1 status Port numbers Fan status LED Power supply 2 status Port-speed group Figure 52: DCS-7280SR3-48YC8 and DCS-7280SR3K-48YC8 Port numbers Fan status LED Power supply 2 status System status LED Power supply 1 status Port status LED (port 25)

  • Page 49: Appendix D: Rear Panel

    Appendix D Rear Panel All switches covered by this guide use one of the rear panels shown below. Depending on the installed power supply module, the appearance could be different from those shown. Note: All devices are designed to fit into a 19” rack. The appearance may be different than those shown based on PSU and the modules used.
  • Page 50 Figure 55: Rear Panel for Models with Management Ports in the Rear and Dual-fan Modules 1 Power supply module 1 5 Fan module 1 status LED 9 Fan module 3 status LED 2 Power supply module 1 6 Fan module 2 release 10 Power supply module 2 status LED 3 Management ports...

  • Page 51: Appendix E: Maintenance And Field Replacement

    All slots must be filled or covered with a blank for operation (even though power supply or fans may not be functional). • Before you begin, refer to the Arista Networks document Safety Information and Translated Safety Warnings available at: https://www.arista.com/en/support/product-documentation. Note: Descriptions for the removal and replacement of power supplies and fans are for a representative power supply or fan.

  • Page 52: Installing A Power Supply

    Figure 56: Removing and Installing Power Supply Release lever Remove PSU E.2.2 Installing a Power Supply You must make space for installing the power supply by removing an existing one Removing a Power Supply. 1. Remove the replacement power supply from its packaging. 2.

  • Page 53: Installing A Fan Module

    Maintenance and Field Replacement Figure 57: Removing Fan Module Release lever E.3.2 Installing a Fan Module You must make space for installing the fan module by removing an existing one. 1. Remove the replacement fan from its packaging. 2. Slide the new fan module into the switch until the module is fully seated and the release lever snaps into place (Figure 58: Inserting Fan Module).

  • Page 55: Appendix F: Regulatory Model Numbers

    Appendix F Regulatory Model Numbers This appendix lists the Regulatory Model Numbers (RMNs), where applicable, for the product models for the switches described in this document. Table 13: Regulatory Model Numbers and Product Numbers Regulatory Model Number (RMN) Product Number(s) AN1504 DCS-7280SR-48C6 AN1506...

  • Page 57: Appendix G: Taiwan Rohs Information

    Appendix G Taiwan RoHS Information This appendix provides Taiwan RoHS information for switches covered by this guide. For Taiwan BSMI RoHS Table, go to https://www.arista.com/assets/data/pdf/AristaBSMIRoHS.pdf.

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