Arista DCS-7804 - Tools, Parts, and ESD Protection

Note: The PSU removal clearance (Front) is 62.5 cm (24.6 in.)
• 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: The Table 4: Rack Space Requirements shows the rack space
requirements for each of the modular switches.
Table 4: Rack Space Requirements
Rack or Cabinet (standard 19" EIA)Switch
2-Post 4-Post Switch Height (RU)
DCS-7804 No Yes 10
DCS-7808 No Yes 16
DCS-7812 No Yes 23
DCS-7816 No Yes 32
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, AC or DC, and for each power domain of switches with multiple power domains. Refer to
Cabling the Power Supplies for more details regarding your switch.
Important: DC cables should be protected with circuit over-current protection devices and
circuit disconnect means. To power off a unit, power must be disconnected from ALL power
cables.
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. Ensure 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.
• DC power cables can reach from the DC power distribution unit 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: Modular Switch
Specifications).
• Torque reading nut driver (for DC power supplies)
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