Juniper QFX3000-G QFabric, Руководство по развертыванию, Страница: 234 / 652

power supply on the other side of the chassis. This configuration provides
the commonly deployed A/B feed redundancy for the system.
a.
Secure the ring lug of the positive (+) DC power source cable to the V+ terminal
on the DC power supply.
b.
Secure the ring lug of the negative (–) DC power source cable to the V– terminal
on the DC power supply.
c.
Tighten the screws on the power supply terminals until snug using the screwdriver.
Do not overtighten—apply between 5 in-lb (0.56 Nm) and 6 in-lb (0.68 Nm) of
torque to the screws.
Figure 46: DC Power Supply Faceplate for a QFX3500, QFX3600 or
QFX3600-I Device
g050211
1
6 7 8 5
2
3
4
5— 1— ESD grounding point Shunt positive input terminals
6— 2— Fault LED Shunt negative input terminals
7— 3— Output LED Terminal block
8— 4— Input LED Ejector lever
CAUTION: The V+ terminals are shunted internally together, as are the
V- terminals. The same polarity terminal can be wired together from the
same source to provide an additional current path in a higher power
chassis. Do not connect the terminals to different sources.
Copyright © 2015, Juniper Networks, Inc. 208
QFX3000-G QFabric System Deployment Guide