Providing Power To The T640 Router; Tools And Parts Required To Provide Power To The T640 Router; Connecting Dc Power To A T640 Router With Two-Input 160-A Dc Power - Juniper T640 Hardware Manual

CHAPTER 13

Providing Power to the T640 Router

Tools and Parts Required to Provide Power to the T640 Router

Copyright © 2013, Juniper Networks, Inc.
Tools and Parts Required to Provide Power to the T640 Router on page 143

Connecting DC Power to a T640 Router with Two-Input 160-A DC Power

Supplies on page 144
Connecting DC Power to a T640 Router with Three-input 240-A DC Power Supplies
(2-INPUT Mode) on page 146
Connecting DC Power to a T640 Router with Four-Input 240-A DC Power
Supplies on page 148
Connecting DC Power to the T640 Router (Six 60-A Inputs to Six-Input DC Power
Supplies) on page 150
Connecting DC Power to the T640 Router (Five 60-A Inputs to Six-Input DC Power
Supplies) on page 154
Connecting DC Power to the T640 Router (Four 60-A Inputs to Six-Input DC Power
Supplies) on page 158
Powering On a DC-Powered T640 Router on page 162
Connecting AC Power to a T640 Router with Three-Phase Delta AC Power
Supplies on page 163
Connecting AC Power to a T640 Router with Three-Phase Wye AC Power
Supplies on page 165
Powering On an AC-Powered T640 Router on page 167
Powering Off the T640 Router on page 168
To provide power to the router, you need:
DC-powered routers: 7/16-in. (11 mm) hexagonal-head external drive socket wrench,
or nut driver, with a torque range between 23 lb-in. (2.6 Nm) and 25 lb-in. (2.8 Nm),
for tightening nuts to terminal studs on each power supply on a DC-powered router.
CAUTION: You must use an appropriate torque-controlled tool to tighten
the nuts. Applying excessive torque damages the terminal studs and the
power supply. The absolute maximum torque that may be applied to this
nut is 45 lb-in. (5.0 Nm).
143