CHAPTER 13
DC Power Requirements, Specifications,
and Guidelines
•
DC Power Supply Electrical Specifications for the MX480 Router on page 157
•
Power Requirements for an MX480 Router on page 158
•
Calculating Power Requirements for MX480 Routers on page 167
•
DC Power Circuit Breaker Requirements for the MX480 Router on page 171
•
DC Power Source Cabling for the MX480 Router on page 172
•
DC Power Cable Specifications for the MX480 Router on page 173
DC Power Supply Electrical Specifications for the MX480 Router
Table 87 on page 157 lists the DC power supply electrical specifications.
Table 88 on page 158 lists the DC power system specifications.
Table 87: Power Supply Electrical Specifications
SpecificationItem
Normal-Capacity Power Supplies
1600 WMaximum output power
33.3 A @ –48 V nominal operating voltageDC input current rating
40 AMaximum Input Current
Operating Range: –40.5 VDC to –72 VDC
Nominal: –48 VDC
DC input voltage
~98%Efficiency
NOTE: This value is at full
load and nominal voltage.
40 AInternal Circuit Breaker
High-Capacity Power Supplies
157Copyright © 2017, Juniper Networks, Inc.
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