Arista PWR-1021-AC-RED | 1050W AC Power Supply, Hot-Swap, Front-to-Rear Airflow

Q: Which Arista switches is the PWR-1021-AC-RED compatible with?
A: The PWR-1021-AC-RED is compatible with Arista 720XP and 722XPM 1RU campus switches, including models like CCS-720XP-48ZC2, CCS-720XP-96ZC2, CCS-722XPM-48ZY8, and CCS-722XPM-48Y4. It provides 1050W of power to support high-density PoE deployments.

Q: What does the RED designation mean for this power supply?
A: The RED designation indicates front-to-rear airflow direction. This ensures proper cooling when installed in Arista switches with matching airflow configurations. Always match airflow direction across all power supplies and fans for optimal thermal management.

Q: Does this power supply support redundancy configurations?
A: Yes, the PWR-1021-AC-RED supports N+1 redundant power supply configurations. Campus switches can operate with dual power supplies for full redundancy, ensuring continuous operation if one power supply fails. Each power supply should be connected to separate circuits for maximum redundancy.

Q: What is the efficiency rating of the PWR-1021-AC-RED?
A: The power supply is 80 PLUS Platinum certified, delivering high energy efficiency that reduces power consumption, operational costs, and heat generation in the network closet. This efficiency rating is critical for sustainable, high-density campus deployments.

Q: Can I hot-swap this power supply without taking the switch offline?
A: Yes, the PWR-1021-AC-RED is a hot-swappable, field-replaceable unit. When operating with redundant power supplies, you can replace a failed or upgrade a power supply without shutting down the switch, ensuring continuous network uptime for mission-critical services.