Arista DCS-7804 - Power Supply Redundancy; Connecting Supervisor Cables

• All power supply slots must be filled with a powered supply, or a blank (X), or a non-powered power
supply.
• V
alid redundancy configurations for each domain are described in Power Supply Redundancy section.
4.7 Power Supply Redundancy
Important: Installation of this equipment must comply with local and national electrical codes. If
necessary, consult with the appropriate regulatory agencies and inspection authorities to
ensure compliance.
Installation de cet équipement doit être conformes aux codes électriques locaux et nationaux. Si
nécessaire, consulter les organismes de réglementation appropriés et des autorités de contrôle
pour assurer la conformité.
Important: Read all installation instructions before connecting the system to the power source.
Lire toutes les instructions d'installation avant de brancher le système à la source d'alimentation.
Most installations will have redundant, dual, independent power feeds. Each independent power feed
will be referenced as A and B.
The recommended installation is to wire input_A and input_B of each supply to independent power
feed (A or B).
Note: When powered cables are connected to both A and B inputs of the PSU, the AC PSU
will draw current from the A input. The B input is held in standby. The DC PSU will share power
based on the input voltage.
Each power supply includes a fan that maintains proper power supply temperature. The following
appendices display the location of the following component on all switches described in this guide.
The Front Panel displays the front panel location of the supervisor modules, line cards and PSUs.
The Rear Panel displays the rear panel location of fabric modules.
Important: This unit requires over-current protection.
Cet appareil nécessite de protection contre les surintensités.
Important: Unused slots must be occupied or covered with a blank to ensure proper airflow
through the chassis.
Les emplacements inutilisés doivent être occupés ou recouvert d'un blanc pour assurer la
bonne circulation d'air dans le châssis.
4.8 Connecting Supervisor Cables
Supervisor modules contain console, management, and USB ports. Figure 20: Supervisor DCS-7800-
SUP, DCS-7800-SUP1A, and DCS-7816-SUP displays port and status LED locations on the
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