T640 Ac Power Cord Specifications - Juniper T640 Hardware Manual

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T640 AC Power Cord Specifications

Copyright © 2013, Juniper Networks, Inc.
Table 67: Typical AC Power Requirements for T640 Components
(continued)
Component
Redundant backup three-phase wye AC power
supply
Cooling system (full speed – normal speed)
Craft interface
PIC —Generalized typical value
PIC (Type 3)—Generalized maximum value
PIC (Type 4)—Generalized maximum value
Example of calculating typical power consumption for minimum configuration:
Base System + 1 FPC3 + 1 PIC =
954 W + 384 W + 35 W= 2193 W
Example of calculating typical power consumption for maximum configuration:
Base System +8 Enhanced Scaling FPC3 + 1 Host subsystem + 1 SCG + 32 PICs + fan
tray (full speed – normal speed) =
954 W + 8 (514 W) + 147 W + 11 W + 32 (68 W) + 864 W =
954 W + 4112 W + 147 W + 11 W + 2176 W + 864 W = 8264 W
Example of calculating system thermal output:
Watts DC/0.293 = BTU/hr
8264/0.293 = 28,205 BTU/hr
T640 Power System Description on page 60
T640 AC Power System Specifications on page 436
T640 Three-Phase Delta AC Power Supply Specifications on page 436
T640 Three-Phase Wye AC Power Supply Specifications on page 437
T640 AC Power Cord Specifications on page 439
Most sites distribute power through a main conduit that leads to frame-mounted power
distribution panels, one of which can be located at the top of the rack that houses the
router. An AC power cord connects each power supply to the power distribution panel.
Appendix D: T640 Power Guidelines, Requirements, and Specifications
Power
Requirement
(Watts)
Not
applicable
1056 W —
321.6 W =
734.4 W
9.6 W
30 W
57.6 W
158.4 W
Power Requirement
(Watts) with 85%
Efficiency
91 W
864 W
11 W
35 W
68 W
186 W
439