Juniper MX480 Hardware Manual page 209

Copyright © 2019, Juniper Networks, Inc.
freely with your fingers when it is first placed onto the terminal stud.
Applying installation torque to the nut when improperly threaded may
result in damage to the terminal stud.
CAUTION: The maximum torque rating of the terminal studs on the DC
power supply is 36 lb-in. (4.0 Nm). The terminal studs may be damaged
if excessive torque is applied. Use only a torque-controlled driver or socket
wrench to tighten nuts on the DC power supply terminal studs.
The DC power supplies in slots PEM0 and PEM1 must be powered by dedicated power
feeds derived from feed A, and the DC power supplies in slots PEM2 and PEM3 must
be powered by dedicated power feeds derived from feed
the commonly deployed
Route the power cables along the cable restraint toward the left or right corner of the
8.
chassis. If needed, thread plastic cable ties, which you must provide, through the
openings on the cable restraint to hold the power cables in place.
Replace the clear plastic cover over the terminal studs on the faceplate.
9.
Verify that the power cables are connected correctly, that they are not touching or
10.
blocking access to router components, and that they do not drape where people could
trip on them.
Repeat Steps 3 through
11.
Chapter 3: Initial Installation and Configuration
feed redundancy for the system.
A/B
10 for the remaining power supplies.
. This configuration provides
B
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