Replacing A T640 Three-Input 240-A Dc Power Supply; Figure 174: Connecting Power Cables To A Two-Input 160-A Dc Power - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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Replacing a T640 Three-Input 240-A DC Power Supply

356

Figure 174: Connecting Power Cables to a Two-Input 160-A DC Power

Supply
T640 Power System Description on page 95
Maintaining the T640 Power Supplies on page 456
T640 DC Power Supply Electrical Specifications on page 126
Site Electrical Wiring Guidelines for Juniper Networks Devices on page 538
The T640 router has either one nonredundant power supply or two redundant,
load-sharing power supplies. Each redundant power supply is hot-insertable and
hot-removable. When a redundant power supply is powered down or removed, the other
power supply automatically assumes the entire electrical load for the router. If you have
only one power supply, you must power off the system before removing the power supply.
Removing a T640 Three-Input 240-A DC Power Supply on page 357
1.
Setting the Input Mode Switch on a Three-Input 240-A DC Power Supply for a T640
2.
Router on page 360
Installing a T640 Three-Input 240-A DC Power Supply on page 361
3.
Replacing the T640 Cable Restraint on a Three-Input 240-A DC Power
4.
Supply on page 361
Connecting DC Power to a Three-Input 240-A DC Power Supply in a T640
5.
Router on page 363
Powering On a T640 Replacement Three-Input 240-A DC Power Supply on page 365
6.
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