Datasheet

APPENDIX D
Power Guidelines, Requirements, and
Specifications for the M7i Router
•
M7i Router Power Requirements on page 167
•
M7i Router AC Power Specifications and Requirements on page 168
•
M7i Router DC Power Specifications and Requirements on page 171
•
Site Electrical Wiring Guidelines for M Series, MX Series, and T Series Routers on page 174
M7i Router Power Requirements
Table 19 on page 167 lists the power requirements for various hardware components when
the router is operating under typical voltage conditions. For PIC power requirements, see
the M7i Multiservice Edge Router PIC Guide.
Table 19: M7i Component Power Requirements
Power Requirement (Amps)@ 48
VComponent
0.6 ABase system (cooling system, power supplies, and FIC)
1.4 ACFEB/CFEB-E
1.9 ACFEB/CFEB-E with Adaptive Services Module
1.9 ACFEB-E with MultiServices Module
0.7 ARouting Engine
You can use the information in Table 19 on page 167 and the M7i Multiservice Edge Router
PIC Guide to calculate power consumption for various hardware configurations, input
current from a different source voltage, and thermal output, as shown in the following
examples. (For an added safety margin, the examples use a generalized value for PICs
of 0.625 A @ 48 V each.)
•
Power consumption for minimum configuration:
Base system + 1 CFEB + 1 RE + 1 PIC =
0.6 A + 1.4 A + 0.7 A + 0.625 A = 3.3 A @ 48 V = 159 W DC
167Copyright © 2012, Juniper Networks, Inc.