Juniper SRX1500, Руководство по оборудованию

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CHAPTER 4
Power Supply Description
• Understanding the SRX1500 Services Gateway Power Supply on page 13
Understanding the SRX1500 Services Gateway Power Supply
The power supplies are located on the rear of the chassis. The SRX1500 Services Gateway
uses either one AC or one DC power supply unit.
A second AC or DC power supply can be used with its matching type of power supply to
provide redundancy. Each power supply provides power to all components in the services
gateway. When two power supplies are present, they share power almost equally within
a fully populated system. The two power supplies provide power redundancy. If one
power supply fails or is removed, the remaining power supply redistributes the electrical
load without interruption. The services gateway reassesses the power required to support
its configuration and issues errors if the available power is insufficient.
Each power supply is cooled by its own internal cooling system.
NOTE: Only redundant power supplies (AC or DC) support hot-swappable
functionality.
Figure 4 on page 13 shows the AC power supply.
Figure 4: AC Power Supply for the SRX1500 Services Gateway
Figure 5 on page 14 shows the DC power supply.
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