Juniper CBL-PWR-10AC-STR-UK Manuel D’Utilisation

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
V

Component

0.6 A

Base system (cooling system, power supplies, and FIC)

1.4 A

CFEB/CFEB-E

1.9 A

CFEB/CFEB-E with Adaptive Services Module

1.9 A

CFEB-E with MultiServices Module

0.7 A

Routing 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

167