Replacing A T1600 Three-Phase Wye Ac Power Supply; Removing A T1600 Three-Phase Wye Ac Power Supply - Juniper T1600 Hardware Manual

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Replacing a T1600 Three-Phase Wye AC Power Supply

Copyright © 2010, Juniper Networks, Inc.
Remove the ESD grounding strap from the approved site ESD grounding point. See
17.
the instructions for your site. Reconnect the strap to one of the ESD points on the
chassis.
Verify that the LED on the power supply faceplate is lit steadily, indicating that
AC OK
18.
the AC terminal block is receiving power.
Switch the power switch on the power supply to the
19.
to the router components.
Verify that the LED on the power supply faceplate is lit steadily, indicating that
DC OK
20.
the power supply is correctly installed and is functioning properly. The
blinks momentarily, then lights steadily.
NOTE: After a power supply is powered on, it can take up to 60 seconds
for status indicators—such as the LEDs on the power supply, the command
output displays, and messages on the LED display on the craft interface—to
indicate that the power supply is functioning normally. Ignore error
indicators that appear during the first 60 seconds.
T1600 Three-Phase Delta and Wye AC Power Supply Overview on page 65
T1600 Three-Phase Delta and Wye AC Power Supply LEDs on page 68
Troubleshooting the T1600 Power System on page 185
T1600 Preventing Electrostatic Discharge Damage on page 312
T1600 AC Power Cord Specifications on page 360
The T1600 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 T1600 Three-Phase Wye AC Power Supply on page 291
1.
Installing a T1600 Three-Phase Wye AC Power Supply on page 294
2.

Removing a T1600 Three-Phase Wye AC Power Supply

To remove a three-phase wye 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 power 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.
Switch the power switch on the power supply faceplate to the standby position.
3.
Chapter 17: Replacing T1600 Router Hardware Components
position (
ON
) to provide power
|
DC OK LED
291