Juniper Core Router T Series Hardware Manual page 281

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Copyright © 2018, Juniper Networks, Inc.
Attach the negative (–) DC source power cable lugs to the
b.
Secure the cable lugs to the terminal studs, first with the washers, then with the nuts.
Apply between 23 lb-in. (2.6 Nm) and 25 lb-in. (2.8 Nm) of torque to each nut.
Verify that the power cables are not touching or in the way of any other components.
10.
Loosen the captive screws on the cable restraint on the right edge of the power supply
11.
faceplate.
Route the positive and negative DC power cables through the top and bottom of each
12.
cable restraint.
Tighten the cable restraint captive screws to hold the power cables in place.
13.
Verify that the ground and power cabling are correct, that they are not touching or
14.
blocking access to router components, and that they do not drape where people could
trip on them.
Replace the clear plastic cover over the terminal studs on the faceplate.
15.
Switch on the external circuit breakers to provide voltage to the DC power source
16.
cable leads.
Switch the circuit breaker on the power supply to the on position (
17.
LEDs on the power supply faceplate. If the power supply is correctly installed and is
functioning properly, the
momentarily, then lights steadily.
NOTE:
After powering off a power supply, wait at least 60 seconds before
turning it back on. After powering on a power supply, wait at least 60
seconds before turning it off.
If the system is completely powered off when you power on the power
supply, the Routing Engine boots as the power supply completes its startup
sequence. If the Routing Engine finishes booting and you need to power
off the system again, see
After a power supply is powered on, it can take up to 60 seconds for status
indicators—such as the output status LEDs on the power supply, the
command display output, and messages on the LCD on the craft
interface—to indicate that the power supply is functioning normally. Ignore
error indicators that appear during the first 60 seconds.
Chapter 28: Replacing Power System Components
LED lights steadily, and the
DC OK
"Powering Off the T320 Router" on page
(input) terminals.
–48V
|
) and observe the
LED blinks
CB ON
165.
253

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