Table 45: T640 Base Ac Power Requirments; Table 46: Typical Ac Power Requirements For T640 Components - Juniper T640 Hardware Manual

Copyright © 2010, Juniper Networks, Inc.
If you do not plan to provision 11,765 W per each three-phase delta AC power supply or
11,775 W per each three-phase wye AC power supply, you can use the information in Table
45 on page 357, Table 46 on page 357 and the T640 Core 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
AC-powered router.
Table 45 on page 357 lists the power requirements for various hardware components
when the router is operating under typical voltage conditions. For power requirements
for specific PICs, see the.T640 Core Router PIC Guide

Table 45: T640 Base AC Power Requirments

Component
Base system, not including FPCs and PICs
(includes five SIBs, one host subsystem (T-CB and
600, 1600, or 2000 Routing Engine ), one SCG,
cooling system at normal speed, and craft
interface), and two AC power supplies

Table 46: Typical AC Power Requirements for T640 Components

Component
SIB: Standard SIB, standard SIB version B, or
T640-SIB
Enhanced II FPC1
Enhanced Scaling FPC1
FPC2 and Enhanced II FPC2
FPC3 and Enhanced II FPC3
Enhanced Scaling FPC3
T640 Enhanced Scaling FPC4
Host subsystem (600, 1600, or 2000 Routing
Engine and T-CB)
SCG
Redundant backup three-phase delta AC power
supply
Redundant backup three-phase wye AC power
supply
Appendix D: T640 Power Guidelines, Requirements, and Specifications
Power Requirement (Watts)
954 W
Power
Requirement
(Watts)
38 W
163.2 W
340.8 W
163.2 W
326.4 W
437.28 W
393.6 W
124.8 W
9.6 W
Not
applicable
Not
applicable
Power Requirement
(Watts) with 85%
Efficiency
44 W
192 W
401 W
192 W
384 W
514 W
463 W
147 W
11 W
91 W
91 W
357