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 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 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 1 - Clearance Requirements and Footprint for Switches displays the dimensions and footprint of the switch clearance requirements for the switches.

Table 1 - Clearance Requirements and Footprint Dimensions 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).

   

   

• 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 -Rack Space Requirements shows the rack space requirements for each of the modular switches.

  Table 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

   

  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 Cabling the Modular Switch 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.

The following tools are required to install a modular switch.

• Mechanical device capable of lifting chassis being installed. (Table 3 - Rack Component Requirements.)
• Torque reading nut driver (for DC power supplies).
• #2 Phillips head screwdriver.

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 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.

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.

   

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

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 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.

   

Table 1 - Modular Switch Specifications lists the specifications of Arista Data Center modular switches covered by this guide.

The Table 2 - 750 Series Power Specifications lists the power specifications of the 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.}