Figure 72: Connecting Power Cables To The Dc Power Supply - Juniper MX240 Hardware Manual

Copyright © 2019, Juniper Networks, Inc.
is properly threaded onto the terminal stud. The nut should be able to spin
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.

Figure 72: Connecting Power Cables to the DC Power Supply

Verify that the DC power cable is connected correctly, that it does not touch or block
5.
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.
6.
Attach the power cable to the DC power source.
7.
Turn on the dedicated customer site circuit breaker to the power supply.
8.
Verify that the
INPUT OK
9.
On each of the DC power supplies, switch the DC circuit breaker to the center position
10.
before moving it to the on (
Chapter 3: Initial Installation and Configuration
LED on the power supply is lit steadily.
— ) position.
205