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SRX3400 Services Gateway DC Power Supply Overview

 

In a DC power configuration, the SRX3400 Services Gateway contains one or two DC power supplies, located at the rear of the chassis in slots PEM0 and PEM1. 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.

One DC power supply can meet the services gateway power requirements. Installing a second DC power supply provides full power redundancy. If one power supply fails or is removed, the remaining power supply assumes 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.

Two types of DC power supply are available. The standard DC power supply has a maximum power output of 850 W. The enhanced DC power supply has a maximum power output of 1200 W, and also has additional filters required to meet NEBS and ETSI requirements. The two types of DC power supply are identical in all other respects.

Note

Mixing standard and enhanced DC power supplies within the same chassis is not supported. All installed DC power supplies must be either of standard or enhanced types.

Figure 1: DC Power Supply
DC Power Supply