Table 69: Typical Dc Power Requirements For Mx2020 Router - Juniper MX2020 Hardware Manual

MX2020 3D Universal Edge Router Hardware Guide
182
Four fan trays
Calculate the power requirements (usage) using the values in
1.
Requirements" on page 171

Table 69: Typical DC Power Requirements for MX2020 Router

Component
Base chassis
Fan trays (upper and lower)
MPC
ADC
CB-RE
SFB—slots 0 through 7
MX2020 DC power subsystem (upper and lower half of chassis,
60 A feeds to each PDM input)
MX2020 DC power subsystem (upper and lower half of chassis,
80 A feeds to each PDM input)
NOTE: The power reservation for the critical FRUs was 7360 W. With
power droop-sharing between the two zones, the power reservation for
critical FRUs is reduced to 5662 W. This number is considering 70/30%
load on the power zones when droop sharing is enabled.
Evaluate the power budget, including the budget for each configuration if applicable,
2.
and check the required power against the maximum output power of available PDM
options.
as shown in Table 69 on page
Model Number
CHAS-BP-MX2020
MX2000-FANTRAY
MPC-3D-16XGE-SFPP
ADC
RE-MX2000-1800X4
MX2000-SFB
Copyright © 2015, Juniper Networks, Inc.
"MX2020 DC Power
182.
Power Requirement (Watts)
with 91% Efficiency
1700 W * 4 = 6800 W
440 W * 20 = 8800 W
150 W * 20 = 3000 W
250 W * 2 = 500 W
220 W * 8 = 1760 W
2100 W * 8 PSMs=16,800 W
(+ 1 PSM@2100 W redundant
capacity)
2500 W * 8 PSMs=20,000 W
(+ 1 PSM@2500 W redundant
capacity)