Table 77: DC Power Supply Electrical Specifications (continued)
SpecificationItem
High-Capacity Power Supplies
70 A (DIP=1)60 A (DIP=0)Maximum Input Current
2440 W2240 WMaximum output power
54.2 A @ -48 VDC normal operating
voltage
50 A @ -48 VDC normal operating
voltage
DC input current rating
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.
Table 78: DC Power System Specifications
High-Capacity
Normal-CapacityItem
1+11+1Redundancy
70 A (DIP=1)60 A (DIP=0)1600 WOutput power
(maximum) per
supply
2440 W2240 W
2440 W2240 W1600 WOutput power
(maximum) per
system
Related
Documentation
Connecting Power to a DC-Powered MX240 Router with Normal-Capacity Power
Supplies on page 201
•
• Installing an MX240 DC Normal Capacity Power Supply on page 258
• Disconnecting an MX240 DC Power Supply Cable on page 343
• Calculating Power Requirements for MX240 Routers on page 137
Power Requirements for an MX240 Router
The following tables list the MX240component powerrequirements. Table 70 on page 129
lists the MX240 base system power requirement. Table71 on page 129 lists the FRU power
requirements for Switch Control Boards (SCBs), Routing Engines, Modular Port
Concentrators (MPCs), Modular Interface Cards (MICs), and Dense Port Concentrators
Copyright © 2017, Juniper Networks, Inc.144
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