Connecting Power To The Ptx5000 High Capacity Dc Pdus - Juniper PTX5000 Hardware Manual

20. Verify that the DC power cables do not touch or block access to the components, and that they do
not drape where people could trip on them.
Figure 132: Installing a 120-A DC Input Power Tray

Connecting Power to the PTX5000 High Capacity DC PDUs

To connect the DC source power cables to the High Capacity DC inputs:
1. Verify that a properly rated customer-site circuit breaker for each DC power cable has been
installed. See "PTX5000 DC Power Electrical Safety Guidelines" on page 695
Packet Transport Router Hardware Guide
2. Switch off the customer-site circuit breakers. Ensure that the voltage across the DC power source
cable leads is 0 V and that there is no chance that the cable leads might become active during
installation.
3. Verify that a licensed electrician has attached appropriate cable lugs to the DC power cables. See
"PTX5000 DC Power Cable and Lugs Specifications" on page 111
Router Hardware Guide
4. Attach an ESD grounding strap to your bare wrist, and connect the strap to one of the ESD points
on the chassis.
5. Move the power switch to the standby
(
) position.
6. Unfasten the screw using a number 2 Phillips (+) screwdriver and remove the terminal block safety
cover.
7. Remove the nuts from the DC power terminal studs.
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