Mx2020 Ac Power Requirements; Table 58: Base Ac Power Requirements; Table 59: Typical Ac Power Requirements For Mx2020 Router - Juniper MX2020 Hardware Manual

MX2020 AC Power Requirements

Copyright © 2013, Juniper Networks, Inc.
Appendix D: Power Guidelines, Requirements, and Specifications for the MX2020 Router
To allow for future growth so that you can operate the router in any hardware configuration
without upgrading the power infrastructure, we recommend that you provision 2800 W
for each AC PDM (delta or wye).
If you do not plan to provision 2800 W for each AC PSM, you can use the information in
Table 58 on page 373 and Table 59 on page 373
hardware configurations, input current from a different source voltage, and thermal
output, as shown in the following examples for an AC-powered router.
Table 60 on page 374 lists the power requirements for various hardware components
when the router is operating under typical voltage conditions.

Table 58: Base AC Power Requirements

Component
Base system, (not including MPCs, ADCs, and
MICs) includes seven SFBs, one host
subsystem [Control Board and Routing Engine
(CB-RE)], four Fan trays, and craft interface,
eight PSMs, and two PDMs

Table 59: Typical AC Power Requirements for MX2020 Router

Component
Base chassis
Fan trays (upper and lower)
MPC
ADC
CB-RE
SFB—slots 0 through 7
MX2020 three-phase delta AC power subsystem (PDM and
PSM) @ 50A/25A
MX2020 three-phase wye power subsystem (PDM and
PSM) @ 30A/15A
If you do not plan to provision as recommended above, you can use the information in
Table 60 on page 374 to calculate the power consumption for your hardware configuration.
to calculate power consumption for various
Power Requirement (Watts)
9.439 W
Power Requirement (Watts)
Model Number with 91% Efficiency
CHAS-BP-MX2020-BB
MX2000-FANTRAY-BB 1700 W * 4 = 6800 W
MPC-3D-16XGE-SFPP 440 W * 20 = 8800 W
ADC 150 W * 20 = 3000 W
RE-MX2000-1800X4-S 250 W
MX2000-SFB-S 220 W * 8 = 1760 W
2800 W
2800 W
373