Figure 90: Management Board For A Qfx3500 Device - Juniper QFabric QFX3000-G Hardware Documentation

QFX3000-G QFabric System Hardware Documentation
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Management Board for a QFX3500 Device
128
The chassis includes a fan speed-control system. Under normal operating conditions,
fans operate at reduced speed to reduce noise and power consumption.
Temperature sensors in the chassis monitor the temperature within the chassis. The
system raises an alarm if a fan fails or if the temperature inside the chassis rises above
permitted levels. If the temperature inside the chassis rises above the threshold, the
device shuts down automatically. You can see the status of fans and the temperature
remotely through the CLI by issuing the operational mode command
.
environment
You cannot replace a single fan module. If one or more fan modules fail, you must replace
the entire fan tray or management board.
Field-Replaceable Units in a QFX3500 Device on page 119
Installing a Fan Tray in a QFX3500 Device on page 649
Removing a Fan Tray from a QFX3500 Device on page 651
Installing a Management Board in a QFX3500 Device on page 652
Removing a Management Board from a QFX3500 Device on page 654
The management board for a QFX3500 device (see
field-replaceable unit (FRU) that you install on the front panel.
CAUTION: You must power off the QFX3500 device before replacing the
management board.
Figure 90 on page 128 shows the management board.

Figure 90: Management Board for a QFX3500 Device

Chassis
status LEDs
LCD display
Q FX 35 00 -4
8S 4Q
USB
Management
port
ports
The management board contains the following components on the faceplate:
Figure 90 on page
Fan modules
Console
port
Copyright © 2018, Juniper Networks, Inc.
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