720D datasheet(13/52 Pages) ARISTA

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Chapter

Preparation

This section describes the initial set up and preparation for installing the switch.

The following topics are covered in this section:

•

Site Selection

•

Tools and Parts Required for Installation

•

Electrostatic Discharge (ESD) Precautions

2.1

Site Selection

The following criteria should be considered when selecting a site to install the switch:

•

Temperature and Ventilation: For proper ventilation, install the switch with ample airflow to the front and

back of the switch.

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 and PSUs determine the airflow direction through the switch. The color of

the visible handles or labels indicates the airflow direction.

Orient the switch so that airflow flows from the cooler to the hotter aisle. If the airflow direction is not

compatible with the installation site, reorient the fan modules to circulate air in the opposite direction.

•

Rack Space: Install the switch in a 19" rack or cabinet. The switch height is 1 RU. The accessory kit

provides mounting brackets for two-post racks.

When mounting the switch in a partially filled rack, load the rack from bottom to top, with the heaviest

equipment at the bottom. Load the switch at the bottom if it is the only item in the rack.

•

Power Requirements: Power requirements vary by switch and power supply model. Refer to

Specifications for information regarding your specific device.

Important: The power input plug-socket combination must be always accessible; it provides the

primary method of disconnecting power from the system.

La combinaison de la puissance-prise d'entrée doit être accessible en tout temps; Il fournit le

principal moyen de coupure d'alimentation du système.

Important: All power connections must be removed to de-energize the unit.

Toutes les connexions d'alimentation doivent être enlevées pour hors tension l'appareil.

•

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 that the following guidelines are met:

•

Clearance areas to the front and rear panels allow for unrestricted cabling.

•

All front and rear panel indicators are visualizable.

•

Power cords can reach from the power outlet to the connector on the rear panel.

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