Table of Contents
Advertisement
SRX 3400 and SRX 3600 Services Gateway DC Power Supply Installation Instructions
DC Power Supply
In a DC power configuration, the services gateway contains one to four DC power
supplies, located at the rear of the chassis in slots PEM0 and PEM1 (SRX 3400) or
PEM0 through PEM3 (SRX 3600). Each power supply provides power to all
components in the services gateway. When multiple power supplies are present,
they share power almost equally within a fully populated system. The multiple DC
power supplies provide power redundancy. If one power supply fails or is removed,
the remaining power supplies redistributes the electrical load without interruption.
The device reassesses the power required to support its configuration and issues
errors if the available power is insufficient.
Figure 1: DC Power Supply
Table 1 on page 2 shows the power supply support for the SRX 3400 and SRX 3600
services gateways.
Table 1: Power Supply Support
Device
SRX 3400
SRX 3600
DC Power Supply Electrical Specifications
Each DC power supply has a single DC input ( 48 VDC and return) that requires a
dedicated 40 A ( 48 VDC) circuit breaker. Table 2 on page 2 lists the DC power
supply electrical specifications.
Table 2: DC Power Supply Electrical Specifications
Parameter
Maximum output power
DC input voltage
2
DC Power Supply
Power Supply Slots
PEM0 and PEM1
PEM0 through PEM4
Specification
850 W
40.5 to 72 VDC
Minimum Number of Power
Supplies
1
2
Maximum Number of Power
Supplies
2
4
Advertisement
Table of Contents
