Calculating Power Requirements For Mx240 Routers - Juniper MX240 Hardware Manual

MX240 5G Universal Routing Platform Hardware Guide
Table 80: 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

Calculating Power Requirements for MX240 Routers

156
Part Number
DPCE-R-40GE-TX
DPCE-X-40GE-TX
MS-DPC
MX-FPC2
MX-FPC3
Calculating Power Requirements for MX240 Routers on page 156
AC Power Supply Electrical Specifications for the MX240 Router on page 44
DC Power Supply Electrical Specifications for the MX240 Router on page 51
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 Table 81 on page 157.
We recommend that you provision power according to the maximum input current listed
in the power supply electrical specifications (see
Specifications for the MX240 Router" on page 44
Specifications for the MX240 Router" on page
Use the following procedures to calculate the power requirement:
Calculate the power requirement.
1.
Evaluate the power budget.
2.
Calculate input power.
3.
Calculate thermal output (BTUs) for cooling requirements.
4.
Maximum Power
Requirement
320 W
265 W
190 W (with PICs and optics)
265 W (with PICs and optics)
"AC Power Supply Electrical
and "DC Power Supply Electrical
51).
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