This guide is intended for properly trained service personnel and technicians who need to install the following Arista Networks Cognitive Campus Switches:

CCS-720XP-48ZC2 CCS-720XP-24ZY4 CCS-720XP-48Y6 CCS-720XP-24Y6
CCS-722XPM-48ZY8 CCS-722XPM-48Y4    

Only qualified personnel should install, service, or replace this equipment.

Seul le personnel qualifié doit installer, service, ou remplacer cet équipement.

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. Part List provides a list of components included with the switch.

Installation Process

Tasks 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).

    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. 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.

    Ultimate disposal of this product should be handled in accordance with all national laws and regulations.


    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.

    Aucune pièce réparable par l'utilisateur à l'intérieur. Confiez toute réparation à un technicien qualifié.

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: 该邮件地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。. 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.


    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.


Table 1. Switch Specifications (Dimensions and Weights)
Switch Size (W x H x D) Weight
CCS-720XP-48ZC2 48.3 x 4.4 x 31.7 cm (19 x 1.75 x 12.5 inches) 7.0 kg (15.6 lbs.)
CCS-720XP-24ZY4 48.3 x 4.4 x 31.7 cm (19 x 1.75 x 12.5 inches) 6.2 kg (13.6 lbs.)
CCS-720XP-48Y6 48.3 x 4.4 x 31.7 cm (19 x 1.75 x 12.5 inches) 6.9 kg (15.3 lbs.)
CCS-720XP-24Y6 48.3 x 4.4 x 31.7 cm (19 x 1.75 x 12.5 inches) 6.0 kg (13.3 lbs.)
CCS-722XPM-48ZY8 44.5 x 4.4 x 42.0 cm (17.5 x 1.75 x 16.8 inches) 7.5 kg (16.5 lbs.)
CCS-722XPM-48Y4 44.5 x 4.4 x 36.4 cm (17.5 x 1.75 x 14.5 inches) 6.8 kg (15.0 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%



Table 3. Switch Power Supply Specifications (Power Input - AC)
Power Source PSU Models Ratings
Input (AC Power) PWR-1021-AC 100 - 240 VAC, 12 to 5.0 A, 50/60 Hz
Input (AC Power) PWR-621-AC 100 - 240 VAC, 8.0 to 3.5 A, 50/60 Hz


Table 4. Switch Power Supply (Power Input - DC)
Power Source PSU Models Ratings Over-current Protection

(Branch Circuit)

Input (DC Power) PWR-721-DC-RED -48 to -60 VDC, 25 A 30 A



The following table lists the default PSU compatibility for all switches described in this guide . Some switches could use power supplies that may no longer be available or other PSUs besides the default shown. Contact your local Arista representative for more information.

Forswitches that support both forward and reverse airflows, add -RED or -BLUE to the PSU model for the airflow desired.


Table 5. Switch Specifications (Power Draw)
Switch Power Draw (Typical /Maximum)1 Supported Power Supply PoE Power Budget Single / Dual PSU
CCS-720XP-48ZC2 141 W / 156 W PWR-1021-AC-RED 909 W / 1787 W
CCS-720XP-24ZY4 141 W / 156 W PWR-621-AC-RED 509 W / 1787 W
CCS-720XP-48Y6 68 W / 93 W PWR-1021-AC 982 W / 1850 W
CCS-720XP-24Y6 67 W / 90 W PWR-621-AC 583 W / 1853 W
CCS-722XPM-48ZY8 134 W / 160 W PWR-1021-AC-RED 890 W / 1835 W
CCS-722XPM-48Y4 83 W / 102 W PWR-1021-AC-RED 948 W / 1893 W

1 Excluding PoE Power.