Consider the following criteria 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 and for air circulation.

   

Figure 1 displays the dimensions and footprint of the switch clearance requirements.

1	Front mounting location

Table 1 show the dimensions for each modular switch.

• Temperature and Ventilation: For proper ventilation, install the switch with ample airflow to the front and back of the switch. The temperature should not go below 0°C 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 fans direct air from the front panel to the rear panel. Orient the front panel toward the cool aisle.
• Rack Space Requirements: Table 2 shows the rack space requirements for each modular switch.

   

  Table 2. Rack Space Requirements

  Switch	Rack or Cabinet (standard 19" EIA)
  	2-post	4-post	Switch Height (RU)
  DCS-7504N	Yes	Yes	7
  DCS-7508N	Yes	Yes	13
  DCS-7512N	No	Yes	18
  DCS-7516N	No	Yes	29

   

  Note: The accessory kit provides each switch's required mounting brackets or shelf.

   

   

• Power Requirements: Arista switches require a minimum number of operating power supplies in the top section of all chassis, AC, or DC and for each power domain of switches with multiple power domains. Refer to Power Supply Specifications for more details regarding your switch.

   

  Important:

  DC cables should be protected with circuit overcurrent protection devices and circuit disconnect means. Power must be disconnected from ALL power cables to turn off a unit.

   

  DC câbles doivent être protégés avec dispositifs de protection de surintensité circuit et moyens de déconnexion du circuit. Pour éteindre une unité, l'alimentation doit être débranchée de TOUS les câbles d'alimentation.

   

   

• 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 the input connectors from the AC power outlet.
  • DC power cables can reach the input connectors from the DC power distribution unit.

     

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 you do not discard any accessories 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 of the 7500N Series Modular Switches order. The Parts List provides a list of components included with the switch.

Refer to the Arista Networks Document Safety Information and Translated Safety Warnings at: https://www.arista.com/en/support/product-documentation.

Any customer, partner, reseller, or distributor holding a valid Arista Service Contract can obtain technical support in any of the following ways:

• Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. This is the easiest way to create a new service request.

  Include a detailed description of the problem and the “show tech-support” output.

   

• Web: https://www.arista.com/en/support.

  You can create a support ticket through the support portal on our website. You may also download the most current software and documentation and view FAQs, Knowledge Base articles, Security Advisories, and Field Notices.

   

• Phone:+1 866-476-0000 or +1 408-547-5502.

The Modular Switch Specifications table lists the specifications of Arista Data Center modular switches covered by this guide.

The Table 2 table lists the power specifications of modular switch components.

_{* Not N+N redundant power at worst case Temp/Elevation.}