Juniper Networks MX480 - Manual (Page 134)

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 B . This configuration provides
the commonly deployed A/B feed redundancy for the system.
8. Route the power cables along the cable restraint toward the left or right corner of the
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.
9. Replace the clear plastic cover over the terminal studs on the faceplate.
10. Verify that the power cables are connected correctly, that they are not touching or
blocking access to router components, and that they do not drape where people could
trip on them.
11. Repeat Steps 3 through 10 for the remaining power supplies.
Figure 68: Connecting DC Power to the Router
Related
Documentation
DC Power Cable Specifications for the MX480 Router on page 304 •
• Preventing Electrostatic Discharge Damage to an MX480 Router on page 248
Copyright © 2013, Juniper Networks, Inc. 110
MX480 3D Universal Edge Router Hardware Guide