Juniper T640 Hardware Manual page 437

Copyright © 2017, Juniper Networks, Inc.
Verify that the AC power cord is not touching or blocking access to router components,
16.
and that it does not drape where people could trip on it.
Remove the ESD grounding strap from the ESD points on the chassis. Connect the
17.
strap to an approved site ESD grounding point. See the instructions for your site.
Connect the AC power cord plug to the power source.
18.
Switch on the customer site circuit breakers to provide voltage to the AC power cord.
19.
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.
Chapter 29: Replacing Power System Components
position ( ) to provide power
ON |
DC OK LED
403