Part 5: Perform Initial Configuration - Juniper QFX5120 Quick Start Manual

To connect power to a switch powered by DC power supply (see
Figure 8: Connecting Power to a QFX5120 Switch Powered by DC Power Supply
The DC power supply has terminals labeled V-, V–, V+, and V+ for connecting DC power source cables labeled positive (+) and
negative (–).
WARNING: Ensure that the input circuit breaker is open so that the cable leads will not become active while you are
connecting DC power.
CAUTION: Ensure that you install the power supply first and then connect DC power source cables, before closing
input breaker ON.
Remove the terminal block cover. The terminal block cover is a piece of clear plastic that snaps into place over the terminal
1.
block.
Remove the screws on the terminals by using the screwdriver. Save the screws.
2.
Connect each power supply to a power source. Secure power source cables to the power supplies by screwing the ring lugs
3.
attached to the cables to the appropriate terminals by using the screws from the terminals.
Secure the ring lug of the positive (+) DC power source cable to the V+ terminal on the DC power supply.
Secure the ring lug of the negative (–) DC power source cable to the V– terminal on the DC power supply.
Tighten the screws on the power supply terminals by using an appropriate screwdriver. Do not overtighten—apply between
5 lb-in. (0.56 Nm) and 6 lb-in. (0.68 Nm) of torque to the screws.
Replace the terminal block cover.
4.
Close the input circuit breaker.
5.
Verify that the and the
6. IN OK

Part 5: Perform Initial Configuration

You must perform the initial configuration of the switch through the console port. Before you begin, set the following parameter
values in the console server or PC.
Copyright © 2018, Juniper Networks, Inc.
LEDs on the power supply are lit green and on steadily.
OUT OK
Figure 8):
QFX5120 Switch Quick Start Guide
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