Replacing A T640 Three-Phase Delta Ac Power Supply Cord; Figure 160: Installing A Three-Phase Delta Ac Power Supply - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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Replacing a T640 Three-Phase Delta AC Power Supply Cord

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Remove the ESD grounding strap from the approved site ESD grounding point. See
20.
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
21.
the AC terminal block is receiving power.
Switch the power switch on the power supply to the
22.
to the router components.
Verify that the LED on the power supply faceplate is lit steadily, indicating that
DC OK
23.
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.

Figure 160: Installing a Three-Phase Delta AC Power Supply

T640 Three-Phase Delta and Wye AC Power Supply Overview on page 57
T640 Three-Phase Delta and Wye AC Power Supply LEDs on page 60
Troubleshooting the T640 Power System on page 171
T640 Preventing Electrostatic Discharge Damage on page 306
Removing a T640 Three-Phase Delta AC Power Supply Cord on page 281
1.
Installing a T640 Three-Phase Delta AC Power Supply Cord on page 283
2.
position ( ) to provide power
ON |
DC OK LED
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