Installing An Mx104 Dc Power Supply - Juniper MX104 Hardware Manual

Installing an MX104 DC Power Supply

Copyright © 2014, Juniper Networks, Inc.
WARNING: Before performing DC power procedures, ensure that power is
removed from the DC circuit. To ensure that all power is off, locate the circuit
breaker on the panel board that services the DC circuit, switch the circuit
breaker to the off position, and tape the switch handle of the circuit breaker
in the off position.
To install a DC power supply in the router, you need the following tools:
Phillips (+) screwdriver, number 2
ESD grounding wrist strap
Grounding ring lug with hole sized for an M5 screw
M5 nut and washer (one per DC power supply, attached)
DC power source cables, minimum 14 AWG or as required by local code (not provided)
DC power ring lugs, Panduit PV12-14HDRB-2k
M6 screws and washers (two per DC power supply, attached)
Grounding cable, minimum 14 AWG or as required by local code (not provided)
To install a DC power supply (see
Ensure that the voltage across the DC power source cable leads is 0 V and that there
1.
is no chance that the cable leads might become active during installation.
Attach an ESD grounding strap to your bare wrist and connect the strap to one of the
2.
ESD points on the chassis.
Using both hands, slide the power supply straight into the chassis until the power
3.
supply is fully seated in the chassis slot. The power supply faceplate should be flush
with any adjacent power supply faceplate or blank installed in the power supply slot.
Remove the clear plastic cover protecting the terminal on the faceplate.
4.
Ground the DC power supply (see
5.
Remove the nut and washer from the grounding point on the power supply.
Secure each grounding cable lug to the grounding point with the washer and nut.
Chapter 13: Replacing MX104 Hardware Components
Figure 40 on page 103):
Figure 39 on page 102):
101