Arista 750 Series User manual

Quick Start Guide
750 Series Modular
Cognitive Campus Switches
Arista Networks
www.arista.com
DOC-04730-01

ii 15 February 2021Quick Start Guide: 750 Series Modular Switches
© Copyright 2021 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.
Headquarters
5453 Great America Parkway
Santa Clara, CA 95054
USA
[phone]
www.arista.com
Support
[phone]
[phone]
[email protected]
Sales
[phone]
[phone]
[email protected]

Quick Start Guide: 750 Series Modular Switches 15 February 2021iii
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 ............................................................................................ 6
Chapter 3 Rack Mounting the Switch ................................................................................9
3.1 Two-post Rack Mount............................................................................................................................. 9
3.1.1 Rack Mounting the CCS-755 .....................................................................................................9
3.1.2 Rack Mounting the CCS-758 ................................................................................................... 11
3.2 Four-post Rack Mount (Optional).......................................................................................................... 14
3.2.1 Rack Mounting the CCS-755 ................................................................................................... 14
3.2.2 Rack Mounting the CCS-758 ................................................................................................... 18
Chapter 4 Cabling the Modular Switch............................................................................23
4.1 Cabling the Power Supplies.................................................................................................................. 23
4.2 Cabling Chassis Ground....................................................................................................................... 23
4.3 Cabling the AC Power Supplies............................................................................................................ 25
4.4 Power Supply Specifications................................................................................................................. 26
4.5 Power Supply Configurations................................................................................................................ 26
4.5.1 Recommendations for power supply usage............................................................................. 27
4.6 Power Supply Redundancy................................................................................................................... 27
4.7 Connecting Supervisor Cables ............................................................................................................. 27
4.8 Connecting Line Card Modules and Cables ......................................................................................... 29
Chapter 5 Configuring the Modular Switch ....................................................................31
Appendix A Status Indicators...........................................................................................33

iv 15 February 2021Quick Start Guide: 750 Series Modular Switches
A.1 Supervisor Module................................................................................................................................ 33
A.1.1 System Level Status Indicator LEDs: CCS-750-SUP100 ........................................................ 33
A.1.2 Supervisor Status LEDs Behavior............................................................................................ 34
A.2 Line Card Module Indicators................................................................................................................. 36
A.2.1 Line card Module Status LEDs Behavior ................................................................................. 37
A.3 Switch Card Module Status Indicators.................................................................................................. 37
A.3.1 Switch Card Module Status LEDs Behavior............................................................................. 39
A.4 Fan Module Status Indicators ............................................................................................................... 40
A.5 Power Supply Status Indicators............................................................................................................ 41
Appendix B Parts List........................................................................................................43
B.1 Parts Used in All Rack Mount Configurations....................................................................................... 44
B.1.1 Cables...................................................................................................................................... 44
B.1.2 Getting-Started Booklet............................................................................................................ 44
B.2 Two-Post Rack Mount Parts ................................................................................................................. 44
B.3 Four-Post Rack Mount Parts (Optional)................................................................................................ 45
B.4 Four-Post (Extended Depth) Rack Mount Parts (Optional)................................................................... 45
Appendix C Front Panel ....................................................................................................47
Appendix D Rear Panel .....................................................................................................49
Appendix E Line Cards .....................................................................................................51
Appendix F Maintenance and Field Replacement ..........................................................53
F.1 Power Supplies..................................................................................................................................... 53
F.1.1 Removing AC Power Supply.................................................................................................... 54
F.1.2 Installing AC Power Supply...................................................................................................... 54
F.2 Fan Module........................................................................................................................................... 54
F.2.1 Removing Fan Module............................................................................................................. 54
F.2.2 Installing Fan Module............................................................................................................... 54
F.3 Supervisor Module................................................................................................................................ 55
F.3.1 Removing Supervisor Module.................................................................................................. 55
F.3.2 Removing Supervisor Module Blank........................................................................................ 55
F.3.3 Installing Supervisor Module.................................................................................................... 55
F.4 Linecards .............................................................................................................................................. 55
F.4.1 Removing Linecard.................................................................................................................. 56
F.4.2 Removing Linecard Blank........................................................................................................ 56
F.4.3 Installing Linecard.................................................................................................................... 57
F.5 Switchcards .......................................................................................................................................... 57
F.5.1 Removing Swichcard ............................................................................................................... 57
F.5.2 Installing Switchcard ................................................................................................................ 58
Appendix G Regulatory Model Numbers .........................................................................59

Quick Start Guide: 750 Series Modular Switches 15 February 2021v
Appendix H Taiwan RoHS Information ............................................................................61

vi 15 February 2021Quick Start Guide: 750 Series Modular Switches

Quick Start Guide: 750 Series Modular Switches 1
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:
• CCS-755
• CCS-758
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 750 Series Modular Switches 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).

2 Quick Start Guide: 750 Series Modular Switches
Safety Information Chapter 1: Overview
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 (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 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: 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: [phone] or [phone].
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.

Chapter 1: Overview Specifications
Quick Start Guide: 750 Series Modular Switches 3
1.6 Specifications
Table 1-1 lists the specifications of Arista Data Center modular switches covered by this guide.
Table 1-1 Modular switch specifications
CCS-755 CCS-758
Height 7 RU: 305 mm (12.0
inches) 10 RU: 439.4 mm (17.3 inches)
Width 441 mm (17.36 inches)
maximum 441 mm (17.36 inches) maximum
Depth 940 mm (16.5 inches) 940 mm (16.5 inches)
Weight 65.4 kg (143.9 lbs) fully
loaded 91.6 kg (201.5 lbs) fully loaded
AC Branch Circuit
Protection
20 A 20 A
Input Power Circuits 6 circuits 10 circuits
Ambient
Temperature
Storage Temperature
Relative Humidity
Altitude
0° to 40°C (32° to
104°F)
-40° to 70°C
(-40° to 158°F)
5to90%
0 to 3,000 meters
(0 to 10,000 feet)
0° to 40°C (32° to
104°F)
-40° to 70°C
(-40° to 158°F)
5to90%
0 to 3,000 meters
(0 to 10,000 feet)
Cooling See Power draw
configurations in
Table 1-2
See Power draw
configurations in
Table 1-2

4 Quick Start Guide: 750 Series Modular Switches
Specifications Chapter 1: Overview
Table 1-2.lists power specifications of modular switch components.
1. Assumes all PSUs are operating between 220 - 240 V.
2. When no AC input is applied.
Note1: Includes typical power supply conversion inefficiency. Contact your local Sales Engineer for 750
power calculator details.
Note2: Power numbers given as Typical/Maximum or Typical/Hot/Maximum where Hot is defined as
40°C Sea Level.
* Not N+N redundant power at worst case Temp/Elevation.
Table 1-2 750 Series power specifications
Module Type Part Number
Power Draw (Typical /
Maximum - non PoE)
AvailablePower
(for PoE)1
Supervisor Modules CCS-750-Sup100
CCS-750-Sup25 79W/94W 70W/80W
Line Card Modules CCS-750X-48TP-LC
CCS-750X-48ZP-LC
CCS-750X-48ZXP-LC
40W/42W
81W/85W
232 W / 232 W
Switch Card Modules CCS-755-X3-SC
CCS-758-X3-SC 82 W / 159 W 101 W / 174 W
Power Supply (AC) PWR-3351-AC-RED 52W
755 Series System Full chassis loaded with
2 CCS-750-Sup100
2 CCS-755-X3-SC
5 CCS-750X-48ZP
6 PWR-3351-AC-RED
1026 W / 1251 W 18871 W
758 Series System Full chassis loaded with
2 CCS-750-Sup100
2 CCS-755-X3-SC
8 CCS-750X-48ZP
10 PWR-3351-AC-RED
1338 W / 1566 W 31789 W

Quick Start Guide: 750 Series Modular Switches 5
Chapter 2
Preparation
2.1 Site Selection
The following criteria should be considered when selecting a site to install the switch:
•Floor Space: Install the switch in an area that provides adequate clearance for removing front and
rear components.
Figure 2-1 displays the dimensions and footprint of the switch clearance requirements for the
switches.
Figure 2-1: Clearance requirements and footprint for switches
Table 2-1 shows the dimensions for each of the modular switches.
•Temperature and Ventilation: For proper ventilation, install the switch where there is ample
airflow to the front and back of the switch. The 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).
Table 2-1 Clearance requirements and footprint dimensions
Switch Clearance Requirements Dimensions
A B C
CCS-755 24.2 cm (9.5 in.) 94.0 cm (16.5 in.) 35.1 cm (13.8 in.)
CCS-758 24.2 cm (9.5 in.) 94.0 cm (16.5 in.) 35.1 cm (13.8 in.)

6 Quick Start Guide: 750 Series Modular Switches
Tools and Parts Required for Installation Chapter 2: Preparation
•Airflow Orientation: The fans direct air from the front panel to the rear panel. Orient the front panel
toward the cool aisle.
•Rack Space Requirements: Table 2-2 shows the rack space requirements for each of the modular
switches.
Note The accessory kit provides the required mounting hardware for each switch.
•Power Requirements: Arista switches require a minimum number of operating power supplies in
all chassis, and for each power domain of switches with multiple power domains. Refer to
Chapter 4 for more details regarding your switch.
•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.
• AC power cords can reach from the AC power outlet to the input connectors.
2.2 Tools and Parts Required for Installation
The following tools are required to install a modular switch:
• Mechanical device capable of lifting chassis being installed (Table 1-1 on page 3).
• Torque reading nut driver (for DC power supplies)
• #2 Phillips head screwdriver
Rack mount: Table 2-3 shows the rack components required for each of the modular switches.
1 The accessory kit includes screws that fit many common equipment racks.
2 Rack nuts are only for racks with unthreaded, rack-post holes.
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.
Table 2-2 Rack space requirements
Switch Rack or cabinet (standard 19" EIA) Mount Kit
2-post 4-post Switch Height (RU)
CCS-755 KIT-CCS-750-2P KIT-CCS-750-4P 7
CCS-758 KIT-CCS-750-2P KIT-CCS-750-4P 10
Table 2-3 Rack component requirements
Switch Rack or cabinet (standard 19" EIA)
Rack screws(1) Rack nuts(2) Notes
CCS-755 14 14 2-post installation
4-post installation
CCS-758 18 18 2-post installation
4-post installation

Chapter 2: Preparation Electrostatic Discharge (ESD) Precautions
Quick Start Guide: 750 Series Modular Switches 7
• Use a conductive work surfaces (such as an anti-static mat) to dissipate static charge.
• Wear an ESD 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.

8 Quick Start Guide: 750 Series Modular Switches
Electrostatic Discharge (ESD) Precautions Chapter 2: Preparation

Quick Start Guide: 750 Series Modular Switches 9
Chapter 3
Rack Mounting the Switch
The switches can be installed in two-post (Section 3.1) or four-post (Section 3.2) racks. The
appropriate accessory kit provides components for installing the switch in the rack. The chassis can be
mounted in the following three positions:
• Front
• Center
• Back (rear)
Section 3.1.1.1 and Section 3.1.2.1 show examples for attaching mounting ears to the CCS-755 and
CCS-758 chassis to support each of the three mounting locations.
Note Four-post rack mount kit is optional.
Illustrations in this chapter depict the mounting of a chassis in a single orientation. After completing the
instructions for your rack type, proceed to Chapter 4.
3.1 Two-post Rack Mount
The switch can be mounted in either forward orientation (line cards and supervisors facing forward) or
backward orientation (fans and PSUs facing forward). For each of these orientations, the switch
supports a front, center or rear mount into a two-post rack.
The accessory kit includes the following two-post mounting parts:
• 2-post rack cradle
• mounting brackets
• 18 screws
Note The following illustrations highlight a front-mount.
3.1.1 Rack Mounting the CCS-755
To mount the switch to the rack, perform the following tasks:
• Attach the mounting brackets to the switch for the desired orientation and position supported
(Section 3.1.1.1).
• Insert and secure the 2-post cradle to the rack (Section 3.1.1.2).
• Insert and secure the switch into the rack (Section 3.1.1.3).

10 Quick Start Guide: 750 Series Modular Switches
Two-post Rack Mount Chapter 3: Rack Mounting the Switch
3.1.1.1 Attaching Mounting Brackets to the Chassis
Step 1 Attach the mounting brackets to both sides of the chassis using the screws provided in the kit
for the desired orientation and position. Figure 3-1 shows the 755 chassis with the mounting
brackets for Forward-Front, Forward-Center, and Backward-Front mounting.
Figure 3-1: Attaching the mounting brackets for 755
3.1.1.2 Attaching Cradle to the Racks
Step 1 Attach the 2-post cradle to the rack using the screws provided (Figure 3-2). Use rack nuts if
needed.
Figure 3-2: Attaching the cradle to the rack
3.1.1.3 Inserting and Securing Chassis into Rack
Step 1 Move the chassis to the rack using a mechanical lift.
Note If modules are inserted in the chassis, use the lift carefully to avoid damaging any components.
Step 2 Lift and slide the chassis into the rack cradle in the desired orientation (Figure 3-3).
Note Figure 3-3 shows a threaded rack example.

Chapter 3: Rack Mounting the Switch Two-post Rack Mount
Quick Start Guide: 750 Series Modular Switches 11
Figure 3-3: Inserting the switch into the two-post rack (755 Forward-Front)
Step 3 Secure the chassis to the rack (Figure 3-4) using the screws.
Figure 3-4: Securing the chassis (755 Forward-Front)
After completing the two-post Installation, proceed to Chapter 4.
3.1.2 Rack Mounting the CCS-758
To mount the switch to the rack, perform the following tasks:
• Attach the mounting brackets to the switch for the desired orientation and position supported
(Section 3.1.2.1).
• Insert and secure the 2-post cradle to the rack (Section 3.1.2.2).
• Insert and secure the switch into the rack (Section 3.1.2.3).

12 Quick Start Guide: 750 Series Modular Switches
Two-post Rack Mount Chapter 3: Rack Mounting the Switch
3.1.2.1 Attaching Mounting Brackets to the Chassis
Step 1 Attach the mounting brackets to both sides of the chassis using the screws provided in the kit
for the desired orientation and position. Figure 3-5 shows the 758 chassis with the mounting
brackets for Forward-Front, Forward-Center, and Backward-Front mounting.
Figure 3-5: Attaching the mounting brackets for 758
3.1.2.2 Attaching Cradle to the Racks
Step 1 Attach the 2-post cradle to the rack using the screws provided (Figure 3-6). Use rack nuts if
needed.
Figure 3-6: Attaching the cradle to the rack
3.1.2.3 Inserting and securing Chassis into Rack
Step 1 Move the chassis to the rack using a mechanical lift.
Note If modules are inserted in the chassis, use the lift carefully to avoid damaging any components.
Step 2 Lift and slide the chassis into the rack cradle in the desired orientation (Figure 3-3).
Note Figure 3-3 shows an unthreaded rack example with rack nuts.

Chapter 3: Rack Mounting the Switch Two-post Rack Mount
Quick Start Guide: 750 Series Modular Switches 13
Figure 3-7: Inserting the switch into the two-post rack (758 Forward-Front)
Step 3 Secure the chassis to the rack (Figure 3-4).
Figure 3-8: Securing the chassis (758 Forward-Front)
After completing the two-post Installation, proceed to Chapter 4.

14 Quick Start Guide: 750 Series Modular Switches
Four-post Rack Mount (Optional) Chapter 3: Rack Mounting the Switch
3.2 Four-post Rack Mount (Optional)
The switch can be mounted in either forward orientation (line cards and supervisors facing forward) or
backward orientation (fans and PSUs facing forward) in a four-post rack.
The accessory kit includes the following four-post mounting parts:
• 4-post rack cradle
• mounting brackets
• 18 screws
3.2.1 Rack Mounting the CCS-755
To mount the switch to the rack, perform the following tasks:
• Attach the mounting brackets to the switch for the desired orientation and position supported
(Section 3.2.1.1).
• Insert and secure the 2-post cradle to the rack (Section 3.2.1.2).
• Insert and secure the switch into the rack (Section 3.2.1.3).
3.2.1.1 Attaching Mounting Brackets to the Chassis
Step 1 Attach the mounting brackets to both sides of the chassis using the screws provided in the kit
for the desired orientation and position. Figure 3-9 shows the 755 chassis with the mounting
brackets for Forward-Front and Backward-Front mounting.
Figure 3-9: Attaching the mounting brackets for 755
Note Center and rear mount are not supported for four-post rack mounting.
3.2.1.2 Inserting and Securing the Cradle to the Racks
To insert and secure the cradle assembly to the rack use the following steps.
Step 1 Insert two screws loosely in the two front rack posts and two in the back two rack posts at the
same level (Figure 3-10).