Arista 7050 Quick Start Guide
Quick Start Guide
7050 Series 1 RU (Gen 3)
Data Center Switches
Arista Networks
www.arista.com
PDOC-00141-06
Headquarters
5453 Great America Parkway
Santa Clara, CA 95054
USA
+1 408 547-5500
www.arista.com
© Copyright 2020 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: 7050 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 ........................................................................... 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 ........................................................................... 12
3.2.2 Assembling the Rails onto the Equipment Rack ...................................................................... 13
3.2.3 Attaching the Switch to the Rack ............................................................................................. 15
Chapter 4 Cabling the Switch...........................................................................................17
4.1 Grounding the Switch ........................................................................................................................... 17
4.2 Grounding Adapter Assembly (DCS-7050SX3-48YC8)........................................................................ 18
4.3 Connecting Power Cables .................................................................................................................... 19
4.3.1 AC Power Supplies .................................................................................................................. 20
4.3.2 DC Power Supplies.................................................................................................................. 21
4.3.3 Connecting the DC Power Supply ........................................................................................... 22
4.3.3.1 Wire and Lug Preparation................................................................................................. 22
4.3.3.2 Connecting a DC Power Supply to Power Source............................................................ 23
4.4 Connecting Serial and Management Cables ........................................................................................ 24
Chapter 5 Configuring the Switch ...................................................................................27
Appendix A Status Indicators...........................................................................................29
Quick Start Guide: 7050 Series 1 RU-Gen 3 Data Center Switches iii
A.1 Front Indicators..................................................................................................................................... 29
A.1.1 Switch Indicators...................................................................................................................... 29
A.1.2 Port Indicators.......................................................................................................................... 30
A.2 Rear Status Indicators .......................................................................................................................... 31
Appendix B Parts List........................................................................................................35
B.1 Rack Mount Parts ................................................................................................................................. 35
B.1.1 Four-Post Rack Mount Parts....................................................................................................35
B.1.2 Two-Post Rack Mount Parts .................................................................................................... 36
B.2 Cables................................................................................................................................................... 36
B.3 Ground Extender Kit (Optional)............................................................................................................. 36
Appendix C Front Panel ....................................................................................................37
C.1 Port-Speed Groups............................................................................................................................... 37
C.2 Front Panels ......................................................................................................................................... 37
Appendix D Rear Panel .....................................................................................................47
Appendix E Maintenance and Field Replacement ..........................................................51
E.1 Considerations...................................................................................................................................... 51
E.2 Power Supplies..................................................................................................................................... 51
E.2.1 Removing a Power Supply.......................................................................................................51
E.2.2 Installing a Power Supply......................................................................................................... 52
E.3 Fan Modules ......................................................................................................................................... 52
E.3.1 Removing a Fan Module.......................................................................................................... 52
E.3.2 Installing a Fan Module............................................................................................................ 53
Appendix F Regulatory Model Numbers .........................................................................55
Appendix G Taiwan RoHS Information ............................................................................57
iv Quick Start Guide: 7050 Series 1 RU-Gen 3 Data Center Switches
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-7050QX-32S • DCS-7050TX-48 • DCS-7050QX2-32S
• DCS-7050TX-64 • DCS-7050SX-64 • DCS-7050TX-72
• DCS-7050SX-72 • DCS-7050TX-72Q • DCS-7050SX-72Q
• DCS-7050TX-96 • DCS-7050SX2-72Q • DCS-7050SX-96
• DCS-7050CX3-32S • DCS-7050SX3-48YC12 • DCS-7050SX3-48YC8
• DCS-7050CX3M-32S • DCS-7050TX3-48C8 • DCS-7050SX3-48C8
Chapter 1
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).
Quick Start Guide: 7050 Series 1 RU-Gen 3 Data Center Switches 1
Safety Information Chapter 1: Overview
Step 5 Configure the switch (Chapter 5).
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: 7050 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-7050QX-32S 48.3 x 4.4 x 40.6 cm (19 x 1.75 x 16 inches) 9.1 kg (20.1 lbs.)
DCS-7050TX-48 48.3 x 4.4 x 40.6 cm (19 x 1.75 x 16 inches) 7.7 kg (17.0 lbs.)
DCS-7050QX2-32S 48.3 x 4.4 x 40.6 cm (19 x 1.75 x 16 inches) 9.1 kg (20.1 lbs.)
DCS-7050TX-64 48.3 x 4.4 x 40.6 cm (19 x 1.75 x 16 inches) 8.6 kg (19.0 lbs.)
DCS-7050SX-64 48.3 x 4.4 x 40.6 cm (19 x 1.75 x 16 inches) 8.6 kg (19.0 lbs.)
DCS-7050TX-72 48.3 x 4.4 x 40.6 cm (19 x 1.75 x 20.6 inches) 10.0 kg (22.0 lbs.)
DCS-7050SX-72 48.3 x 4.4 x 40.6 cm (19 x 1.75 x 16 inches) 8.6 kg (19.0 lbs.)
DCS-7050TX-72Q 48.3 x 4.4 x 40.6 cm (19 x 1.75 x 20.6 inches) 10.2 kg (22.5 lbs.)
DCS-7050SX-72Q 48.3 x 4.4 x 40.6 cm (19 x 1.75 x 16 inches) 7.8 kg (17.2 lbs.)
DCS-7050TX-96 48.3 x 4.4 x 40.6 cm (19 x 1.75 x 20.6 inches) 10.5 kg (23.1 lbs.)
DCS-7050SX2-72Q 48.3 x 4.4 x 40.6 cm (19 x 1.75 x 16 inches) 10.1 kg (22.3 lbs.)
DCS-7050SX-96 48.3 x 4.4 x 40.6 cm (19 x 1.75 x 16 inches) 9.1 kg (20.1 lbs.)
DCS-7050CX3-32S 48.3 x 4.4 x 40.6 cm (19 x 1.75 x 16 inches) 8.8 kg (19.4 lbs.)
DCS-7050SX3-48YC12 48.3 x 4.4 x 44.4 cm (19 x 1.75 x 17.5 inches) 9.2 kg (20.3 lbs.)
DCS-7050SX3-48YC8 48.3 x 4.4 x 46.8 cm (19 x 1.75 x 18.43 inches)
DCS-7050CX3M-32S 48.3 x 4.4 x 55.9 cm (19 x 1.75 x 22.0 inches) 12.0 kg (26.5 lbs.)
DCS-7050TX3-48C8 48.3 x 4.4 x 46.7 cm (19 x 1.75 x 18.4 inches) 9.4 kg (20.6 lbs.)
DCS-7050SX3-48C8 48.3 x 4.4 x 46.8 cm (19 x 1.75 x 18.4 inches)
(1): Depth 50.5 cm (19.9 inches) with PSU and fans.
Table 1-2 Switch Specifications (Operational and Storage)
Operating
Switch
All 0° to 40°C
Temperature
(32° to 104°F)
Storage
Temperature
-25° to 70°C
(-13° to 158°F)
Operating Altitude Relative Humidity
0 to 3,000 meters
(0 to 10,000 feet)
(1)
9.5 kg (21.0 lbs.)
(1)
9.4 kg (20.6 lbs.)
5to90%
(non-condensing)
Table 1-3 Switch Specifications (Power Input)
Power Source PSU Models Ratings
Power Input (AC Power) PWR-500AC 100 - 240 VAC, 6.5 to 3.0 A, 50/60 Hz
Power Input (DC Power) PWR-500-DC -48 to -60 VDC, 15 A
Quick Start Guide: 7050 Series 1 RU-Gen 3 Data Center Switches 3
Specifications Chapter 1: Overview
Table 1-3 Switch Specifications (Power Input) (Continued)
Power Source PSU Models Ratings
Power Input (AC Power) PWR-511-AC 100 - 127 / 200 - 240 VAC, 7.1 / 3.4 A, 50/60 Hz
Power Input (DC Power) PWR-511-DC -48 to -60 VDC, 13 A
Power Input (AC Power) PWR-1011-AC-RED 100 - 120 / 200 - 240 VAC, 12/6A,50/60 Hz
Power Input (DC Power) PWR-1011-DC-RED -48 to -60 VDC, 30 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.
Table 1-4 Switch Specifications (Power Draw)
Power Draw (Typical /
Switch
DCS-7050QX-32S 150 W / 300 W PWR-500AC, PWR-500-DC
Maximum)
Supported Power Supply
DCS-7050TX-48 305 W / 367 W PWR-500AC, PWR-500-DC
DCS-7050QX2-32S 129 W / 283 W PWR-500AC, PWR-500-DC
DCS-7050TX-64 315 W / 387 W PWR-500AC, PWR-500-DC
DCS-7050SX-64 140 W / 220 W PWR-500AC, PWR-500-DC
DCS-7050TX-72 349 W / 440 W PWR-500AC, PWR-500-DC
DCS-7050SX-72 144 W / 276 W PWR-500AC, PWR-500-DC
DCS-7050TX-72Q 340 W / 430 W PWR-500AC, PWR-500-DC
DCS-7050SX-72Q 144 W / 261 W PWR-500AC, PWR-500-DC
DCS-7050TX-96 355 W / 455 W PWR-500AC, PWR-500-DC
DCS-7050SX2-72Q 127 W / 251 W PWR-500AC, PWR-500-DC
DCS-7050SX-96 159 W / 290 W PWR-500AC, PWR-500-DC
DCS-7050CX3-32S 206 W / 314 W PWR-500AC, PWR-500-DC
DCS-7050SX3-48YC12 170 W / 325 W PWR-500AC, PWR-500-DC
DCS-7050SX3-48YC8 165 W / 345 W PWR-511-AC, PWR-511-DC
DCS-7050CX3M-32S 398 W / 751 W PWR-1011-AC-RED, PWR-1011-DC-RED
DCS-7050TX3-48C8 212 W / 346 W PWR-511-AC, PWR-511-DC
DCS-7050SX3-48C8 133 W / 313 W PWR-511-AC, PWR-511-DC
4 Quick Start Guide: 7050 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 four fan modules and two power supply
modules on the rear panel. Fan and power supply module handles indicate airflow direction:
• Blue Handle: Air Inlet module.
• Red Handle: Air Exit module.
Figure 2-1 displays fan and power supply module locations on the rear panel. Their red handles
indicate that they are air exit modules. Verify that each module has the same airflow direction. 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.
• 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 and Table 1-4 for information regarding your specific system.
Two circuits provide redundancy protection. Section 4.1 describes power cable requirements.
Quick Start Guide: 7050 Series 1 RU-Gen 3 Data Center Switches 5
Tools and Parts Required for Installation Chapter 2: Preparation
Figure 2-1: Airflow Direction Labels and Handles
1 Power supply module
1 label
2 Fan module 1 6 Power supply module 2
3 Fan module 2 7 Fan module handle 11 Fan module 1 status LED
4 Fan module 3 8 Fan module 4 status LED 12 PSU 1 status LED
5 Fan module 4 9 Fan module 3 status LED
10 Fan module 2 status LED
label
Note Handle or label color indicates 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.
6 Quick Start Guide: 7050 Series 1 RU-Gen 3 Data Center Switches
Chapter 2: Preparation Electrostatic Discharge (ESD) Precautions
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: 7050 Series 1 RU-Gen 3 Data Center Switches 7
Electrostatic Discharge (ESD) Precautions Chapter 2: Preparation
8 Quick Start Guide: 7050 Series 1 RU-Gen 3 Data Center Switches
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.
• Section 3.1 provides instructions for mounting the switch in a two-post rack.
• Section 3.2 provides instructions for mounting the switch in a four-post rack.
After completing the instructions for your rack type, proceed to Chapter 4.
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 3-1 displays proper bracket mount configuration examples. Figure 3-2 displays improper bracket
mount configuration examples.
Quick Start Guide: 7050 Series 1 RU-Gen 3 Data Center Switches 9
Two-Post Rack Mount Chapter 3: Rack Mounting the Switch
3.1.1 Attaching Mounting Brackets to the Chassis
This procedure attaches mounting brackets to the switch chassis (Figure 3-3).
Step 1 Align the mounting brackets with the attachment pins to obtain the desired mounting position.
Step 2 Place the bracket flush on the chassis with attachment pins protruding through key-openings.
Figure 3-1: Bracket Mount Examples for Two-Post Rack Mount
Figure 3-2: Improper Bracket Mount Examples for Two-Post Rack Mount
Step 3 Slide the bracket toward the front flange until the bracket clip locks with an audible click.
Figure 3-3: 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
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).
10 Quick Start Guide: 7050 Series 1 RU-Gen 3 Data Center Switches
Chapter 3: Rack Mounting the Switch Four-Post Rack Mount
3.1.2 Inserting the Switch into the Rack
This procedure attaches the switch to the rack (Figure 3-4).
Step 1 Lift the chassis into the rack. Position the flanges against the rack posts.
Step 2 Select mounting screws that fit your equipment rack.
Step 3 Attach the bracket flanges to the rack posts.
Figure 3-4: Inserting the Switch into the Rack
After completing the two-post rack mount, proceed to Chapter 4.
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.
Figure 3-5 displays proper bracket mount configuration examples. Figure 3-6 displays an improper
bracket mount configuration example.
Quick Start Guide: 7050 Series 1 RU-Gen 3 Data Center Switches 11
Four-Post Rack Mount Chapter 3: Rack Mounting the Switch
Figure 3-5: Bracket Mount Examples for Four-Post Rack Mount
Figure 3-6: 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
Figure 3-7 displays the front bracket alignment for mounting the switch into a four-post rack.
Figure 3-7: Attaching the Mounting Brackets to the Switch Chassis
1 Attaching brackets for
front mount
This procedure attaches mounting brackets to the switch chassis as depicted by Figure 3-7.
Step 1 Align the mounting brackets with the attachment pins to obtain the desired mounting position.
Step 2 Place the bracket flush on the chassis with attachment pins protruding through key-openings.
Step 3 Slide the bracket toward the front flange until the bracket clip locks with an audible click.
12 Quick Start Guide: 7050 Series 1 RU-Gen 3 Data Center Switches
Chapter 3: Rack Mounting the Switch Four-Post Rack Mount
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).
3.2.2 Assembling the Rails onto the Equipment Rack
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 3-8). 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 3-8: 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:
Step 1 Slide a rail-rod into a rail-slide (Figure 3-9) 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 3-9: Assembling the Rails
Quick Start Guide: 7050 Series 1 RU-Gen 3 Data Center Switches 13
Four-Post Rack Mount Chapter 3: Rack Mounting the Switch
1 Rail-slide 4 Rail (assembled)
2 Rail-rod
3 Rack plugs
Step 2 Attach rail to the right rear rack post by inserting rod-end rack plugs into post slots
(Figure 3-10, Detail A). 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.
Step 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 3-10, Detail B).
Step 4 Repeat step 1 through step 3 for the left posts. Ensure the rails are on the same horizontal
level.
Figure 3-10: Attaching the Rails
1 Detail A
2 Detail B
14 Quick Start Guide: 7050 Series 1 RU-Gen 3 Data Center Switches
Chapter 3: Rack Mounting the Switch Four-Post Rack Mount
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.
Step 1 Lift the switch into the rack and insert the mounting brackets into the slide rails.
Figure 3-11: Inserting the Switch onto the Rails
Step 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.
Step 3 Attach the bracket flanges to the rack post using the quick-release thumb screws supplied with
the brackets (Figure 3-12).
Figure 3-12: Attaching the Switch to the Rack Posts
After completing the four-post rack mount, proceed to Chapter 4.
Quick Start Guide: 7050 Series 1 RU-Gen 3 Data Center Switches 15
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