Arista 7020SR-32C2 User Manual
Quick Start Guide
7020SR-32C2 Series 1 RU (Gen 3)
Data Center Switches
Arista Networks
www.arista.com
DOC-00152-01
Headquarters
5453 Great America Parkway
Santa Clara, CA 95054
USA
+1 408 547-5500
www.arista.com
© Copyright 2019 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.
ii Quick Start Guide: 7020SR-32C2 Series 1 RU-Gen 3 Data Center Switches
Support
+1 408 547-5502
+1 866 476-0000
support@arista.com
Sales
+1 408 547-5501
+1 866 497-0000
sales@arista.com
Table of 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.........................................................................................................5
2.1 Site Selection.......................................................................................................................................... 5
2.2 Tools and Parts Required for Installation................................................................................................ 6
2.3 Electrostatic Discharge (ESD) Precautions ............................................................................................ 7
Chapter 3 Rack Mounting the Switch ................................................................................9
3.1 Two-Post Rack Mount............................................................................................................................. 9
3.1.1 Attaching Mounting Brackets to the Chassis ............................................................................. 9
3.1.2 Inserting the Switch into the Rack............................................................................................ 10
3.2 Four-Post Rack Mount .......................................................................................................................... 11
3.2.1 Attaching Mounting Brackets to the Chassis ........................................................................... 11
3.2.2 Assembling the Rails onto the Equipment Rack ...................................................................... 11
3.2.3 Attaching the Switch to the Rack ............................................................................................. 13
Chapter 4 Cabling the Switch...........................................................................................15
4.1 Grounding the Switch ........................................................................................................................... 15
4.2 Connecting Power Cables .................................................................................................................... 15
4.2.1 AC Power Supplies .................................................................................................................. 16
4.3 Connecting Serial and Management Cables ........................................................................................ 17
Chapter 5 Configuring the Switch ...................................................................................19
Appendix A Status Indicator LEDs...................................................................................21
A.1 System-level Status Indicator LEDs...................................................................................................... 21
A.1.1 System Status Indicator LED ...................................................................................................21
A.1.2 Fan Status Indicator LED......................................................................................................... 21
A.1.3 Port Status Indicator LEDs....................................................................................................... 22
A.2 Component Status Indicators................................................................................................................ 22
Quick Start Guide: 7020SR-32C2 Series 1 RU-Gen 3 Data Center Switches iii
A.2.1 Fan Module Status LED........................................................................................................... 22
A.2.2 PSU Module Status LED.......................................................................................................... 23
Appendix B Parts List........................................................................................................25
B.1 Rack Mount Parts ................................................................................................................................. 25
B.1.1 Four-Post Rack Mount Parts....................................................................................................25
B.1.2 Two-Post Rack Mount Parts .................................................................................................... 26
B.2 Cables................................................................................................................................................... 26
Appendix C Front Panel ....................................................................................................27
Appendix D Rear Panel .....................................................................................................29
Appendix E Maintenance and Field Replacement ..........................................................31
E.1 Considerations...................................................................................................................................... 31
E.2 Power Supplies..................................................................................................................................... 31
E.2.1 Removing a Power Supply.......................................................................................................31
E.2.2 Installing a Power Supply......................................................................................................... 31
E.3 Fan Modules ......................................................................................................................................... 32
E.3.1 Removing a Fan Module.......................................................................................................... 32
E.3.2 Installing a Fan Module............................................................................................................ 32
Appendix F Regulatory Model Numbers .........................................................................33
Appendix G Taiwan RoHS Information ............................................................................35
iv Quick Start Guide: 7020SR-32C2 Series 1 RU-Gen 3 Data Center Switches
Chapter 1
Overview
1.1 Scope
This guide is intended for properly trained service personnel and technicians who need to install the
following Arista Networks Data Center Switches:
DCS-7020SR-32C2
Important! Only qualified personnel should install, service, or replace this equipment.
Seul le personnel qualifié doit installer, service, ou remplacer cet équipement.
1.2 Receiving and Inspecting the Equipment
Upon receiving the switch, inspect the shipping boxes and record any external damage. Retain packing
materials if you suspect that part of the shipment is damaged; the carrier may need to inspect them.
If the boxes were not damaged in transit, unpack them carefully. Ensure that you do not discard any
accessories that may be packaged in the same box as the main unit.
Inspect the packing list and confirm that you received all listed items. Compare the packing list with
your purchase order. Appendix B provides a list of components included with the switch.
1.3 Installation Process
The following tasks are required to install and use the switch:
Step 1 Select and prepare the installation site (Section 2.1).
Step 2 Assemble the installation tools listed (Section 2.2).
Step 3 Attach the mounting brackets and install the switch in an equipment rack (Chapter 3).
Step 4 Connect the switch to the power source and network devices (Chapter 4).
Step 5 Configure the switch (Chapter 5).
Quick Start Guide: 7020SR-32C2 Series 1 RU-Gen 3 Data Center Switches 1
Safety Information Chapter 1: Overview
Important! Class 1 Laser Product: This product has provisions to install Class 1 laser transceivers which provide
optical coupling to the communication network. Once a Class 1 laser product is installed, the
equipment is a Class 1 Laser Product (Appareil à Laser de Classe 1). The customer is responsible for
selecting and installing the Class 1 laser transceiver and for insuring that the Class 1 AEL (Allowable
Emission Limit) per EN/IEC 60825, CSA E60825-1, and Code of Federal Regulations 21 CFR 1040 is
not exceeded after the laser transceiver have been installed. Do not install laser products whose class
rating is greater than 1. Refer to all safety instructions that accompanied the transceiver prior to
installation. Only Class 1 laser devices, certified for use in the country of installation by the cognizant
agency are to be utilized in this product.
Produit Laser de classe 1: Ce produit a des dispositions pour installer des émetteurs-récepteurs de
laser de classe 1 qui offre de couplage au réseau de communication optique.Une fois un produit laser
de classe 1 est installé, l'équipement est un produit Laser de classe 1 (Appareil à Laser de Classe 1).Le
client est responsable pour sélectionner et installer l'émetteur/récepteur de laser de classe 1 et pour
assurer que la classe 1 AEL (limite d'émission admissible) par EN/IEC 6-825, CSA E60825-1, et Code
des règlements fédéraux 21 CFR 1040 ne soit pas dépassée après avoir installé l'émetteur/récepteur
de laser. Ne pas installer des appareils à laser dont la cote de classe est supérieure à 1.Voir toutes les
consignes de sécurité qui ont accompagné l'émetteur-récepteur avant l'installation. Seuls appareils
laser de classe 1 certifiés pour une utilisation dans le pays d’installation par l’organisme compétent
doivent être utilisées dans ce produit.Ultimate disposal of this product should be in accordance with all
applicable laws and regulations.
Important! Ultimate disposal of this product should be handled in accordance with all national laws and
regulations.
Aucune pièce réparable par l'utilisateur à l'intérieur. Confiez toute réparation à un technicien qualifié.
1.4 Safety Information
Refer to the Arista Networks document Safety Information and Translated Safety Warnings available at:
https://www.arista.com/en/support/product-documentation
1.5 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:
• Email: support@arista.com. This is the easiest way to create a new service request.
Include a detailed description of the problem and the output of “show tech-support”.
• Web: https://www.arista.com/en/support.
A support case may be created through the support portal on our website. You may also download
the most current software and documentation, as well as view FAQs, Knowledge Base articles,
Security Advisories, and Field Notices.
• Phone: +1 866-476-0000 or +1 408-547-5502.
Important! No user serviceable parts inside. Refer all servicing to qualified service personnel.
Aucune pièce réparable par l'utilisateur à l'intérieur. Confiez toute réparation à un technicien qualifié.
2 Quick Start Guide: 7020SR-32C2 Series 1 RU-Gen 3 Data Center Switches
Chapter 1: Overview Specifications
1.6 Specifications
Table 1-1 Switch Specifications (Dimensions and Weights)
Switch Size (WxHxD) Weight
DCS-7020SR-32C2 48.3 x 4.4 x 34.7 cm (19 x 1.75 x 13.6 inches) 6.4 kg (14.4 lbs.)
Table 1-2 Switch Specifications (Operational and Storage)
Operating
Switch
All 0° to 40°C
Table 1-3 Switch Specifications (Power Input)
Power Source PSU Models Ratings
Power Input (AC Power) PWR-400AC 100 - 240 VAC, 4.5 A (max), 50/60 Hz
Temperature
(32° to 104°F)
Storage
Temperature
-25° to 70°C
(-13° to 158°F)
Operating
Altitude
0 to 3,000 meters
(0 to 10,000 feet)
Relative
Humidity
5to90%
(non-condensing)
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.
Table 1-4 Switch Specifications (Power Draw)
Switch Power Draw (Typical / Maximum) Supported Power Supply
DCS-7020SR-32C2 160 W / 189 W PWR-400AC
Quick Start Guide: 7020SR-32C2 Series 1 RU-Gen 3 Data Center Switches 3
Specifications Chapter 1: Overview
4 Quick Start Guide: 7020SR-32C2 Series 1 RU-Gen 3 Data Center Switches
Chapter 2
Preparation
2.1 Site Selection
The following criteria should be considered when selecting a site to install the switch:
• Temperature and Ventilation: For proper ventilation, install the switch where there is ample
airflow to the front and back of the switch. The ambient temperature should not go below 0° or
exceed 40°C.
Important! To prevent the switch from overheating, do not operate it in an area where the ambient temperature
exceeds 40°C (104°F).
Pour empêcher l’interrupteur de surchauffe, ne pas utiliser il dans une zone où la température ambiante
est supérieure à 40°C (104°F).
• Airflow Orientation: Determine airflow direction of the fan modules on the rear panel and the
power supply modules on the front panel. Fan and power supply module handles indicate airflow
direction:
• Blue Handle: Air Inlet module.
• Red Handle: Air Exit module.
Figure 2-1 on page 6 displays fan and power supply module locations on the device. Base the
switch orientation on the airflow direction of the modules to assure the air inlet is always oriented
toward the cool aisle. For DCS-7020SR-32C2, ensure that the fan module and the power supply
module have opposite airflow orientations.
• Air Exit modules: orient the rear panel toward the hot aisle.
• Air Inlet modules: orient the rear panel toward the cool aisle.
If the airflow direction is not compatible with the installation site, contact your sales representative
to obtain modules that circulate air in the opposite direction.
• Rack Space: Install the switch in a 19" rack or cabinet. The switch height is 1 RU. The accessory
kit provides mounting brackets for two-post and four-post racks.
When mounting the switch in a partially filled rack, load the rack from bottom to top, with the
heaviest equipment at the bottom. Load the switch at the bottom if it is the only item in the rack.
• Power Requirements: Power requirements vary by switch and power supply model. Refer to
Table 1-3 on page 3 and Table 1-4 on page 3 for information regarding your specific system.
Two circuits provide redundancy protection. Section 4.1 describes power cable requirements.
Quick Start Guide: 7020SR-32C2 Series 1 RU-Gen 3 Data Center Switches 5
Tools and Parts Required for Installation Chapter 2: Preparation
Figure 2-1: Airflow Direction
Important! The power input plug-socket combination must be accessible at all times; it provides the primary
method of disconnecting power from the system.
La combinaison de la puissance-prise d’entrée doit être accessible en tout temps ; Il fournit le principal
moyen de coupure d’alimentation du système.
• Other Requirements: Select a site where liquids or objects cannot fall onto the equipment and
foreign objects are not drawn into the ventilation holes. Verify these guidelines are met:
• Clearance areas to the front and rear panels allow for unrestricted cabling.
• All front and rear panel indicators can be easily read.
• Power cords can reach from the power outlet to the connector on the rear panel.
Important! All power connections must be removed to de-energize the unit.
Toutes les connexions d’alimentation doivent être enlevées pour hors tension l’appareil.
2.2 Tools and Parts Required for Installation
Each switch provides an accessory kit that contains parts that are required to install the switch. In
addition to the accessory kit, the following tools and equipment are required to install the switch:
Two-Post Rack
• Screws or rack mounting nuts and bolts.
• Screwdriver
6 Quick Start Guide: 7020SR-32C2 Series 1 RU-Gen 3 Data Center Switches
Chapter 2: Preparation Electrostatic Discharge (ESD) Precautions
Note For DCS-7020SR-32C2, four-post rack kits are optional and sold separately.
Four-Post Rack (Tool-less)
No additional equipment required.
Four-Post Rack (Conventional)
• Screws or rack mounting nuts and bolts.
• Screwdriver
Accessory kit does not include screws for attaching the switch to the equipment rack. When installing
the switch into an equipment rack with unthreaded post holes, nuts are also required to secure the
switch to the rack posts.
2.3 Electrostatic Discharge (ESD) Precautions
Observe these guidelines to avoid ESD damage when installing or servicing the switch.
• Assemble or disassemble equipment only in a static-free work area.
• Use a conductive work surface (such as an anti-static mat) to dissipate static charge.
• Wear a conductive wrist strap to dissipate static charge accumulation.
• Minimize handling of assemblies and components.
• 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.
Quick Start Guide: 7020SR-32C2 Series 1 RU-Gen 3 Data Center Switches 7
Electrostatic Discharge (ESD) Precautions Chapter 2: Preparation
8 Quick Start Guide: 7020SR-32C2 Series 1 RU-Gen 3 Data Center Switches
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