Calculating Power Requirements For Mx480 Routers - Juniper MX480 Hardware Manual

Table 85: FRU Power Requirements (continued)
Component
Tri-Rate Enhanced DPCor
Tri-Rate Enhanced
Ethernet Services DPC
Multiservices DPC
Flexible PIC Concentrators (FPC)
FPC Type 2
FPC Type 3
SEE ALSO
DC Power Supply Electrical Specifications for the MX480 Router | 58
AC Electrical Specifications for the MX480 Router | 49

Calculating Power Requirements for MX480 Routers

The information in this topic helps you determine which power supplies are suitable for various
configurations, as well as which power supplies are not suitable because output power is exceeded. You
determine suitability by subtracting the total power draw from the maximum output of the power supplies.
Afterward, the required input power is calculated. Finally, you calculate the thermal output. A sample
configuration is provided in
We recommend that you provision power according to the maximum input current listed in the power
supply electrical specifications (see
"DC Power Supply Electrical Specifications for the MX480 Router" on page
Use the following procedures to calculate the power requirement:
1. Calculate the power requirement.
2. Evaluate the power budget.
Part Number
DPCE-R-40GE-TX
DPCE-X-40GE-TX
MS-DPC
MX-FPC2
MX-FPC3
Table 87 on page 202.
"AC Electrical Specifications for the MX480 Router" on page
Maximum Power
Requirement
320 W
265 W
190 W (with PICs and
optics)
265 W (with PICs and
optics)
49and
58).
199