Juniper MX480, Hardware Manual

Page: 160 / 420

1.
Calculate the power requirements (usage) using the values in “Power Requirements
for an MX480 Router” on page 149 as shown in Table 83 on page 160 .
Table 83: Sample Power Requirements for an MX480 Router
Zone Power Requirement Part Number Chassis Component
Zone 0 and Zone 1 40 W MX480BASE-DC-HIGH Base system
Zone 0 and Zone 1 160 W FFANTRAY-MX480-HC High-capacity cooling system
Zone 1 440 W MPC-3D-16XGE-SFPP-R-B MPC - Slot 2
Zone 0 440 W MPC-3D-16XGE-SFPP-R-B MPC - Slot 1
Zone 0 185 W
90 W
SCBE2-MX with
RE-S-1800X2-8G
SCB 1
Zone 0 185 W
90 W
SCBE2 with
RE-S-1800X2-8G
SCB 0
Zone 1 310 W DPCE-R-4XGE-XFP DPC - Slot 3
1090 W
850 W
Zone 0 total output power
Zone 1 total output power
1010 W
770 W
Zone 0 total output power (excluding cooling system)
Zone 1 total output power (excluding cooling system)
2.
Evaluate the power budget. In the case of a DC-powered chassis, evaluate the budget
for each zone. In this step, we check the required power against the maximum output
power of available power supply options.
NOTE: The power for the cooling system comes from a different tap on
the power supply, reserved for the cooling system only. The cooling system
power requirement does not need to be deducted from the output power
budget of the power supply.
Table 84 on page 161 lists the power supplies, their maximum output power, and
unused power (or a power deficit) for MX480 AC chassis. Table 85 on page 161 lists
the power supplies, their maximum output power, and unused power (or a power
deficit) for MX480 DC chassis. See
“AC Electrical Specifications for the MX480 Router”
on page 47 and “DC Power Supply Electrical Specifications for the MX480 Router”
on page 55 for more information about the MX480 power supply electrical
specifications.
Copyright © 2019, Juniper Networks, Inc. 160
MX480 Universal Routing Platform Hardware Guide