Figure 214: Installing a Three-Phase Delta AC Power Supply
Related
Documentation
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
• Troubleshooting the T640 Power System on page 476
• T640 Preventing Electrostatic Discharge Damage on page 506
Replacing a T640 Three-Phase Delta AC Power Supply Cord
1.
Removing a T640 Three-Phase Delta AC Power Supply Cord on page 404
2.
Installing a T640 Three-Phase Delta AC Power Supply Cord on page 407
Removing a T640 Three-Phase Delta AC Power Supply Cord
To remove a three-phase delta AC power supply cord:
1. Switch off the customer site circuit breakers to the power supply being removed. Make
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.
2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
the strap to one of the ESD points on the chassis.
3. Switch the power switch on the power supply faceplate to the standby position.
NOTE: After powering off a power supply, wait at least 60 seconds before
turning it back on.
Copyright © 2017, Juniper Networks, Inc.404
T640 Core Router Hardware Guide
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