Arista 7280CR2 30 Series User manual

Arista Networks
www .arista.com
DOC-00136-05
Quick Start Guide
7280CR2x-30 Series 1 RU
Data Center Switches

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............................................................................5
2.1 Site Selection..........................................................................................................................5
2.2 Tools and Parts Required for Installation...............................................................................6
2.3 Electrostatic Discharge (ESD) Precautions............................................................................6
Chapter 3: Rack Mounting the Switch.................................................. 9
3.1 Two-Post Rack Mount............................................................................................................9
3.1.1 Attaching Mounting Brackets to the Chassis (Two-Post)........................................10
3.1.2 Inserting the Switch into the Rack..........................................................................11
3.2 Four-Post Rack Mount......................................................................................................... 11
3.2.1 Attaching Mounting Brackets to the Chassis (Four-post)....................................... 12
3.2.2 Assembling the Rails onto the Equipment Rack.................................................... 13
3.2.3 Attaching the Switch to the Rack........................................................................... 14
Chapter 4: Cabling the Switch.............................................................17
4.1 Grounding the Switch...........................................................................................................17
4.2 Connecting Power Cables....................................................................................................17
4.2.1 AC Power Supplies.................................................................................................18
4.2.2 DC Power Supplies.................................................................................................19
4.3 Connecting Serial and Management Cables........................................................................22
Chapter 5: Configuring the Switch......................................................25
Appendix A: Status Indicators.............................................................27
A.1 Front Indicators.................................................................................................................... 27
A.1.1 Switch Indicators.................................................................................................... 27
A.1.2 Port Indicators........................................................................................................ 29
A.2 Rear Status Indicators......................................................................................................... 29
Appendix B: Parts List..........................................................................33
B.1 Rack Mount Parts................................................................................................................ 33
B.1.1 Four-Post Rack Mount Parts..................................................................................33
B.1.2 Two-Post Rack Mount Parts.................................................................................. 33
B.2 Cables...................................................................................................................................34
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Appendix C: Front Panel...................................................................... 35
Appendix D: Rear Panel....................................................................... 37
Appendix E: Maintenance and Field Replacement............................ 39
E.1 Considerations......................................................................................................................39
E.2 Power Supplies.................................................................................................................... 39
E.2.1 Removing a Power Supply.....................................................................................39
E.2.2 Installing a Power Supply.......................................................................................40
E.3 Fan Modules.........................................................................................................................41
E.3.1 Removing a Fan Module........................................................................................41
E.3.2 Installing a Fan Module..........................................................................................41
Appendix F: Regulatory Model Numbers............................................43
Appendix G: Taiwan RoHS Information..............................................45
iv

Chapter 1
Overview
The following topics are coved in this section:
•Scope
•Receiving and Inspecting the Equipment
•Installation Process
•Safety Information
•Obtaining Technical Assistance
•Specifications
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-7280CR2A-30
• DCS-7280CR2K-30
• DCS-7280CR2M-30
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. Parts List provides a list of components included with the switch.
1.3 Installation Process
The following tasks are required to install and use the switch:
1. Select and prepare the installation site (Site Selection).
2. Assemble the installation tools listed (Tools and Parts Required for Installation).
3. Attach the mounting brackets and install the switch in an equipment rack (Rack Mounting
the Switch).
4. Connect the switch to the power source and network devices (Cabling the Switch).
5. Configure the switch (Configuring the Switch).
1

Important:
Class 1 Laser Product: This product has provisions to install Class 1 laser transceivers that
provides optical coupling to the communication network. Once a Class 1 laser product is
installed, the equipment is a Class 1 Laser Product. 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 60825, 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.
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: [email protected]. 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: http://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: [phone] or [phone].
Important:
No user serviceable parts inside. Refer all servicing to qualified service personnel.
2

Overview
Aucune pièce réparable par l'utilisateur à l'intérieur. Confiez toute réparation à un
technicien qualifié.
1.6 Specifications
Table 1: Switch Specifications (Dimensions and Weights)
Switch Size (W x H x D) Weight
DCS-7280CR2A-30 48.3 x 4.4 x 67.1 cm (19 x
1.75 x 26.4 inches) 15.5 kg (34.2 lbs.)
DCS-7280CR2K-30 48.3 x 4.4 x 67.1 cm (19 x
1.75 x 26.4 inches) 15.5 kg (34.2 lbs.)
DCS-7280CR2M-30 48.3 x 4.4 x 67.1 cm (19 x
1.75 x 26.4 inches) 15.5 kg (34.2 lbs.)
Table 2: Switch Specifications (Operational and Storage)
Switch Operating
Temperature Storage Temperature Operating Altitude Relative Humidity
All 0° to 40°C (32° to
104°F) -25° to 70°C (-13° to 158°F) 0 to 3,000 meters (0 to 10,000 feet) 5 to 90% (non- condensing)
Table 3: Switch Specifications (Power Supply Units)
Power Source PSU Models Ratings 1
Power Input (AC Power) PWR-1600AC 100 to 240 VAC, 12.9 to 9.5 A,
50/60 Hz
Power Input (DC Power) PWR-1611-DC -48 to -60 VDC, 39 A
1. AC PSUs could be rated for lower maximum power at lower line voltage.
2. The AC PSU fans will not be operational if the power cord is not connected.
Note:
A power supply unit could be used in multiple Arista switches.
For power consumed by a specific model or configuration, refer to the relevant power draw
specification or contact your Arista representative.
Table 4: Switch Specifications (Power Draw)
Switch Power Draw (Typical / Maximum) Supported Power Supply
DCS-7280CR2A-30 563 W / 628 W PWR-1600AC, PWR-1611-DC
DCS-7280CR2K-30 563 W / 628 W PWR-1600AC, PWR-1611-DC
3

Switch Power Draw (Typical / Maximum) Supported Power Supply
DCS-7280CR2M-30 1300 W / 1400 W PWR-1600AC, PWR-1611-DC
4

Chapter 2
Preparation
This section covers the following topics:
•Site Selection
•Tools and Parts Required for Installation
•Electrostatic Discharge (ESD) Precautions
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: The power supply module supports forward airflow and so does the fan
module. Figure 1: Airflow Direction Labels displays fan and power supply module locations on the
rear panel. Base the switch orientation on the airflow direction of the modules to assure the air inlet
is always oriented toward the cool aisle:
•Air Exit modules: orient the rear panel toward the hot aisle.
If the airflow direction is not compatible with the installation site, contact your sales representative.
•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
3: Switch Specifications (Power Supply Units) and Table 4: Switch Specifications (Power Draw) for
information regarding your specific system.
Two circuits provide redundancy protection. Cabling the Switch describes power cable
requirements.
Figure 1: Airflow Direction Labels
1 Power Supply Module 1 4 Fan Module 2 7 Fan Module 5
5

2 Management Ports 5 Fan Module 3 8 Ground
3 Fan Module 1 6 Fan Module 4 9 Power Supply Module 2
Note: Fan module handle color and power supply module label indicate 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
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.
6

Preparation
• 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.
7

8

Chapter 3
Rack Mounting the Switch
Important:
The rack mounting procedure is identical for all switches covered by this guide. Illustrations in
this chapter depict the mounting of a DCS-7050QX-32S switch.
Les procédure de montage du bâti est identique pour tous les commutateurs visés
par ce guide. Illustrations dans ce chapitre montrent le montage d’un interrupteur de
DCS-7050QX-32S.
•Two-Post Rack Mount provides instructions for mounting the switch in a two-post rack.
•Four-Post Rack Mount provides instructions for mounting the switch in a four-post rack.
After completing the instructions for your rack type, proceed to Cabling the Switch.
Note: The switch must be installed from the front of the rack for both the two-post and four-
post installations.
3.1 Two-Post Rack Mount
To mount the switch onto a two-post rack, assemble the mounting brackets to the chassis, then attach
the brackets to the rack posts. Two-post accessory kits include the following two-post mounting parts:
2 three-hole Mounting Brackets
Each chassis side has attachment pins that align with bracket holes. Pin orientation is symmetric and
equidistant, supporting bracket placements where the flange is flush with the front switch panel, flush
with the rear panel, or not flush with either panel. Each bracket hole includes a key-opening for placing
the bracket flush with the chassis and then locking it into place.
Important:
Attachment pins must engage all three upper bracket holes.
Goupilles de fixation doivent être bloquer tous les trois trous de la bride supérieure.
Figure 2: Bracket Mount Examples for Two-Post Rack Mount displays proper bracket mount
configuration examples. Figure 5: Inserting the Switch into the Rack displays improper bracket mount
configuration examples.
9

3.1.1 Attaching Mounting Brackets to the Chassis (Two-Post)
The following figure displays the front bracket alignment for attaching the switch into a two-post rack.
Figure 2: 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 3: Improper Bracket Mount Examples for Two-Post Rack Mount
The following procedure attaches the two-post rack mount brackets to the chassis.
1. Align the mounting brackets with the attachment pins to obtain the desired mounting position.
2. Place the bracket flush on the chassis with attachment pins protruding through key-openings.
3. Slide the bracket toward the front flange until the bracket clip locks with an audible click.
The following figure shows the correct bracket attachment for a front mount.
Figure 4: Attaching the Mounting Brackets to the Switch Chassis
1 Step 1 4 Bracket clip (attached)
2 Step 2 5 Bracket clip (aligned)
3 Step 3
10

Rack Mounting the Switch
To remove the mounting bracket from the chassis, lift the front edge of the mounting bracket clip with
a flathead screwdriver and slide the bracket away from the front flange (opposite from the installation
direction).
3.1.2 Inserting the Switch into the Rack
This procedure attaches the switch to the rack (Figure 5: Inserting the Switch into 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. Attach the bracket flanges to the rack posts.
Figure 5: Inserting the Switch into the Rack
After completing the two-post rack mount, proceed to Cabling the Switch.
3.2 Four-Post Rack Mount
The switch is mounted onto a four-post rack by assembling two rails onto the rear posts, sliding the
switch onto the rails, then securing the switch to the front posts.
The installation kit provides the following four-post mounting parts:
• 2 six-hole mounting brackets
• 2 rail-rods
• 2 rail-slides
The rail-rods and rail-slides assemble into two identical slide-rails.
Each chassis side has attachment pins that align with bracket holes. Pin orientation is symmetric and
equidistant, supporting bracket placements where the flange is flush with the front switch panel, flush
with the rear panel, or not flush with either panel. Each bracket hole includes a key-opening for placing
the bracket flush with the chassis and then locking it into place.
Important:
Attachment pins must engage at least five of the six bracket holes.
Goupilles de fixation doivent être lock au moins cinq des trous du six support.
11

Figure 6: Bracket Mount Examples for Four-Post Rack Mount displays proper bracket mount
configuration examples. Figure 7: Improper Bracket Mount Example for Four-Post Rack Mount
displays an improper bracket mount configuration example.
Figure 6: Bracket Mount Examples for Four-Post Rack Mount
Figure 7: Improper Bracket Mount Example for Four-Post Rack Mount
1 Bracket not attached by at least 5 pins
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 8: Attaching the Bracket to the Four-post Switch
1 Attaching brackets for front mount
This procedure attaches mounting brackets to the switch chassis as depicted in above figure.
1. Align the mounting brackets with the attachment pins to obtain the desired mounting position.
2. Place the bracket flush on the chassis with attachment pins protruding through key-openings.
3. Slide the bracket toward the front flange until the bracket clip locks with an audible click.
12

Rack Mounting the Switch
3.2.2
To remove the mounting bracket from the chassis, lift the front edge of the mounting bracket
clip with a flathead screwdriver and slide the bracket away from the front flange (opposite from the
installation direction).
Rail-rods and rail-slides assemble into two identical rails. Each rail connects a front post to a rear post.
When the rails are installed, the switch slides on the rails into the rack. Each bracket includes a screw
that attaches the switch to the rail.
Each end of an assembled rail contains two rack plugs (Figure 9: Attaching the Mounting Brackets
to the Switch Chassis). The rails are installed into a rack by inserting the plugs into rack slots. When
installing rails into posts with threaded or rounded holes, remove all plugs located on both sides of the
assembled rails, then install the rails with bolts that fit the rack.
Figure 9: Attaching the Mounting Brackets to the Switch Chassis
1 Step 1 4 Bracket clip (attached)
2 Step 2 5 Bracket clip (aligned)
3 Step 3
This procedure attaches the rails to a four post rack:
1. Slide a rail-rod into a rail-slide (Figure 10: Assembling the Rails) until the rail clip makes an audible click.
The rail clip prevents the extension of the rail beyond the maximum supported distance between the
front and rear rack posts.
Figure 10: Assembling the Rails
1 Rail-slide 4 Rail (assembled)
2 Rail-rod
3 Rack plugs
13
Assembling the Rails onto the Equipment Rack

2. Attach rail to the right rear rack post by inserting rod-end rack plugs into post slots (Figure 11:
Attaching the Rails). The slide assembly must be inside the right posts, relative to the left
rack posts.
If the rack plugs were previously removed, use bolts to attach the rail to the rack.
3. Attach the slide end of the rail to the front post by extending the rail end past the post, then
contracting the rail while guiding the rack plugs into the post (Figure 11: Attaching the Rails).
4. Repeat Step 1 through Step 3 for the left posts. Ensure the rails are on the same horizontal level.
Figure 11: Attaching the Rails
1 Detail A
2 Detail 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. Lift the switch into the rack and insert the mounting brackets into the slide rails.
Figure 12: Inserting the Switch onto the Rails
14

Rack Mounting the Switch
2. Slide the switch on the rails, toward the rear posts, until the mounting bracket flanges are flush with
the rail flanges attached to the rack posts.
3. Attach the bracket flanges to the rack post using the quick-release thumb screws supplied with the
brackets (Figure 13: Attaching the Switch to the Rack Posts).
Figure 13: Attaching the Switch to the Rack Posts
After completing the four-post rack mount, proceed to Cabling the Switch.
15

16