• General Safety Guidelines and Warnings on page 169
• General Electrical Safety Guidelines and Warnings on page 197
• Prevention of Electrostatic Discharge Damage on page 198
• AC Power Supply for a QFX5100 Device
• QFX10002 AC Power Specifications
• QFX5200 AC Power Specifications
• QFX5110 AC Power Specifications
DC Power Specifications for a QFX3500 Device
Table 25 on page 57 describes the DC power specifications for a QFX3500 device.
Table 25: DC Power Specifications for a QFX3500 Device
SpecificationsItem
•
Minimum operating voltage: –40 VDC
•
Nominal operating voltage: –48 VDC
•
Operating voltage range: –40 VDC through –72 VDC
DC input voltage
7 A maximum at nominal operating voltage (–48 VDC)DC input current rating
250 WTypical power consumption
385 WMaximum power consumption
Related
Documentation
DC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device on page 37•
• DC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I Device on page 40
Grounding Cable and Lug Specifications for a QFX3500 Device
For installations that require a separate grounding conductor to the chassis, the device
must be adequately grounded before power is connected to ensure proper operation
and to meet safety and electromagnetic interference (EMI) requirements. To ground a
QFX3500 device, connect a grounding cable to earth ground and then attach it to the
chassis grounding points.
WARNING: The device is pluggable type A equipment installed in a
restricted-access location. It has a separate protective earthing terminal
provided on the chassis in addition to the grounding pin of the power supply
cord. This separate protective earthing terminal must be permanently
connected to earth ground for installations that require a separate grounding
conductor to the chassis.
57Copyright © 2017, Juniper Networks, Inc.
Chapter 6: Power Specifications and Requirements
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