Figure 113: Connecting Power Cables To The Dc Power Supply - Juniper MX480 Hardware Manual

MX480 3D Universal Edge Router Hardware Guide
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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.

Figure 113: Connecting Power Cables to the DC Power Supply

Route the power cable along the cable restraint toward the left or right corner of the
5.
chassis. If needed, thread plastic cable ties, which you must provide, through the
openings on the cable restraint to hold the power cable in place.
Verify that the DC power cable is connected correctly, that it does not touch or block
6.
access to router components, and that it does not drape where people could trip on
it.
Replace the clear plastic cover over the terminal studs on the faceplate.
7.
Attach the power cable to the DC power source.
8.
Turn on the dedicated customer site circuit breaker to the power supply.
9.
On each of the DC power supplies, switch the DC circuit breaker to the center position
10.
before moving it to the on (
NOTE: The circuit breaker may bounce back to the off (
move the breaker too quickly.
Observe the status LEDs on the power supply faceplate. If the power supply is correctly
installed and functioning normally, the
green steadily.
) position.
—
,
PWR OK BRKR ON
Copyright © 2011, Juniper Networks, Inc.
O ) position if you
, and LEDs light
INPUT OK