CHAPTER 6
Power System Description
IN THIS CHAPTER
SRX3600 Services Gateway AC Power Supply Overview | 55
SRX3600 Services Gateway DC Power Supply Overview | 56
SRX3600 Services Gateway AC Power Supply Overview
In an AC power configuration, the services gateway contains two to four AC power supplies, located at
the rear of the chassis in slots PEM0 through PEM3. Each power supply provides power to all components
in the services gateway. The power supplies share power almost equally within a fully populated system.
Two power supplies are required to meet the services gateway power requirements. Installing a third or
fourth AC power supply provides full power redundancy. If one power supply fails or is removed, the
remaining power supplies redistribute 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.
Figure 32: AC Power Supply
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SRX3600 Services Gateway Chassis | 21
55