Figure 181: Typical Dc Source Cabling From Pem0 To Feed A; Figure 182: Typical Dc Source Cabling From Pem1 To Feed B - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
PEM 0
PEM1
Chassis
grounding
points
Related
Documentation
354

Figure 181: Typical DC Source Cabling from PEM0 to Feed A

Figure 182: Typical DC Source Cabling from PEM1 to Feed B

CO ground
T640 Power System Description on page 49
T640 DC Power System Electrical Specifications on page 347
T640 DC Power Supply Electrical Specifications on page 348
General Electrical Safety Guidelines and Electrical Codes for M Series, MX Series, and
T Series Routers on page 324
Central office
Primary &
secondary
DC power
distribution
Ground
window Batteries
Battery plant
Central
office ground
Central office
Primary &
secondary
DC power
distribution
Ground
Batteries
window
Battery plant
Central
office ground
Feed A
AC
Rectifiers
Plant
controls
Feed B
AC
Rectifiers
Plant
controls
Copyright © 2010, Juniper Networks, Inc.