Connecting Power To The Ptx5000 120-A Dc Input Power Trays; Figure 101: Removing The 120-A Dc Input Power Tray - Juniper PTX5000 Hardware Manual

Connecting Power to the PTX5000 120-A DC Input Power Trays

Copyright © 2017, Juniper Networks, Inc.
To connect the DC source power cables to the 120-A DC inputs:
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.
Switch the circuit breakers on the power distribution unit (PDU) faceplate to the off
3.
( ) position.
O
Loosen the captive screw that fastens the input power tray to the PDU .
4.
Grasp the metal handle of the input power tray, and pull it out to remove the input
5.
power tray from the PDU (see
weighs 1.6 lb (0.7 kg).

Figure 101: Removing the 120-A DC Input Power Tray

Use a Phillips (+) screwdriver to loosen the screw on the metal input power tray cover.
6.
Open the metal input power tray cover.
7.
Loosen the cable restraints.
8.
Remove the nuts from the DC power terminal studs.
9.
Route the positive (+) DC source power cable lug through the left cable restraint.
10.
Secure the positive (+) DC source power cable lug to the
11.
on the left, with a nut.
Use a 10-mm nut driver to tighten the nut.
Route the negative (–) DC source power cable lug through the right cable restraint.
12.
Chapter 21: Connecting the Router to Power
Figure 101 on page 207). The 120-A DC input power tray
RTN
(return) terminal, located
207