CHAPTER 13
DC Power Requirements and
Specifications
•
DC Power Supply Electrical Specifications for the MX240 Router on page 143
•
Power Requirements for an MX240 Router on page 144
•
Calculating Power Requirements for MX240 Routers on page 153
•
DC Power Circuit Breaker Requirements for the MX240 Router on page 156
•
MX240 Chassis Grounding Specifications on page 157
•
DC Power Source Cabling for the MX240 Router on page 159
•
DC Power Cable Specifications for the MX240 Router on page 160
DC Power Supply Electrical Specifications for the MX240 Router
Table 77 on page 143 lists the DC power supply electrical specifications.
Table 78 on page 144 lists the DC power system specifications.
Table 77: DC 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
143Copyright © 2017, Juniper Networks, Inc.
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