Replacing A T640 Three-Phase Delta Ac Power Supply; Removing A T640 Three-Phase Delta Ac Power Supply; Figure 208: Installing The Side Power Supply Filter - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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Documentation

Replacing a T640 Three-Phase Delta AC Power Supply

Removing a T640 Three-Phase Delta AC Power Supply

396

Figure 208: Installing the Side Power Supply Filter

Air filter bracket
T640 Three-Phase Delta and Wye AC Power Supply Description on page 106
T640 Three-Phase Delta and Wye AC Power Supply LEDs on page 109
Powering Off the T640 Router on page 248
Maintaining the T640 Power Supplies on page 456
T640 Preventing Electrostatic Discharge Damage on page 506
General Safety Guidelines for Juniper Networks Devices on page 503
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-Phase Delta AC Power Supply on page 396
1.
Installing a T640 Three-Phase Delta AC Power Supply on page 400
2.
To remove a three-phase delta AC power supply:
Switch off the customer site circuit breakers to the power supply being removed. Make
1.
sure that the voltage across the AC power source cord is 0 V and that there is no
chance that the cord might become active during the removal process.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
2.
the strap to one of the ESD points on the chassis.
Air filter
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