Arista 750 Series, Быстрый старт

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26 Quick Start Guide: 750 Series Modular Switches
Power Supply Specifications Chapter 4: Cabling the Modular Switch
Figure 4-3: AC power supply (PWR-3351-AC-RED)
Appendix D displays the rear panel location of the power supplies.
Note After disconnection from main power, LED(s) on the PSU remain on for a short period of time. The
actual duration varies for each PSU model, but the LED(s) will eventually turn off. The PSU fan will ramp
up and run at maximum speed for a few seconds before shutting down.
4.4 Power Supply Specifications
Table 4-1 shows the power supply specifications for each of the PSUs supported.
Important! Each power supply requires input branch circuit protection in compliance with AHJ requirements.
Chaque alimentation nécessite une protection du circuit de la branche d’entrée conformément aux
exigences de l’AHJ.
4.5 Power Supply Configurations
Table 4-2 shows the power supply configurations for the modular switches.
Note PSU input voltage for all PSUs in the system must be the same.
Table 4-1 Power supply specifications (each PSU)
Power Supply
Maximum output
power rating (DC) Input voltage and
frequency Maximum input
current Input branch
circuit protection
PWR-3351-AC-RED 1400 W
3000 W
3300 W 100 to 127 VAC
200 to 220 VAC
220 to 240 VAC
50/60 Hz 16 A 20 A
Table 4-2 Power supply configurations
Modular switch
Recommended number of
PSUs (for redundancy) Minimum number of
PSUs required Maximum number of PSUs
supported
CCS-755 3 1 6
CCS-758 5 1 10