Table 60: T640 Component Dc Power Requirements - Juniper T640 Hardware Manual

Table 60: T640 Component DC Power Requirements

Component
Base system, not including FPCs and PICs (includes five SIBs, one host subsystem, one SCG,
cooling system, and craft interface), and two DC power supplies
SIB: Standard SIB, standard SIB version B, or T640-SIB
Enhanced FPC1 and Enhanced II FPC1
Enhanced Scaling FPC1
FPC2, Enhanced FPC2, and Enhanced II FPC2
Enhanced Scaling FPC2
FPC3, Enhanced FPC3, and Enhanced II FPC3
Enhanced Scaling FPC3
Type 4 FPC
T640 Enhanced Scaling FPC4-1P
Host subsystem (Routing Engine and control board)
SCG
Power supply
Cooling system (normal speed)
Cooling system (full speed)
Craft interface
PIC—Generalized typical value
PIC (Type 3)—Generalized maximum value
PIC (Type 4)—Generalized maximum value
Copyright © 2013, Juniper Networks, Inc.
These examples use generalized values for PICs. For PIC power requirements, see the
T640 Interface Module Reference
Example of calculating power consumption for a minimum configuration under typical
voltage conditions:
Base System + 1 FPC3 + 1 PIC =
16.9 A + 6.8 A + 0.625 A = 24.3 A @ –48 VDC = 1,166 W
Appendix D: T640 Power Guidelines, Requirements, and Specifications
.
Current Requirement
(Amps @ –48 VDC)
16.9 A
0.8 A
3.4 A
7.1 A
3.4 A
7.5 A
6.8 A
9.1 A
8.2 A
7.0 A
2.6 A
0.2 A
1.7 A
6.7 A
22 A
0.2 A
0.625 A
1.2 A
3.3 A
431