Figure 95: Dc Power Supply Faceplate - Juniper QFabric QFX3000-G Hardware Documentation

Copyright © 2018, Juniper Networks, Inc.

Figure 95: DC Power Supply Faceplate

2
8 7
1— Shunt positive input terminals
2— Shunt negative input terminals
3— Terminal block
4— 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.
To supply sufficient power, terminate the DC input wiring on a facility DC source that is
capable of supplying a minimum of 7 A at –48 VDC for QFX3500 and 8 A a5 –48 VDC
for QFX3600..
The power supply provides FRU-to-port or port-to-FRU airflow depending on the SKU
you purchase. The power supplies have labels and arrows on the handles that depict the
direction of airflow (see Figure 77 on page
denotes port-to FRU airflow.
AFO
1
3
4
6 5
5— ESD grounding point
6— Fault LED
7— Output LED
8— Input LED
114). The label
AFI
Chapter 6: QFX3500 Overview
denotes FRU-to-port airflow.
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