Replacing The Fan On A Junos Space Appliance; Removing The Fan; Figure 20: Ja2500 Appliance Front Panel Status Leds - Juniper JA2500 Hardware Manual

Replacing the Fan on a Junos Space Appliance

Removing the Fan

Copyright © 2018, Juniper Networks, Inc.
The Junos Space appliance ships with two field-replaceable fans that are hot-swappable.
You can remove and replace a fan without powering off the appliance or disrupting any
functions.
When a fan fails, the full cooling load switches to the remaining fan and the red Hardware
Fault LED on the front panel of the appliance blinks and an alarm sounds.
NOTE: The LEDs on the front panel of the JA2500 are arranged vertically, as
shown in Figure 20 on page

Figure 20: JA2500 Appliance Front Panel Status LEDs

1— Power LED
2—Hard Disk Activity LED
CAUTION: The Junos Space appliance should not run on one fan for an
extended period of time. Failed fans should be replaced as soon as possible.
Ensure that you have the following parts and tools available to remove the fan from the
appliance chassis:
(Optional) Electrostatic discharge (ESD) grounding strap
(Optional) An antistatic bag or an antistatic mat
Removing the Fan on page 161
Installing the Fan on page 162
To remove a fan from a Junos Space appliance, do the following:
(Optional) Place the antistatic bag or antistatic mat on a flat, stable surface.
1.
(Optional) Attach an ESD grounding strap to your bare wrist, and connect the strap
2.
to an external ESD point.
Press the latch at the side of the fan, as shown
3.
fan.
Chapter 15: Replacing Components
161.
3— Hardware Fault LED
Figure 21 on page 162 to release the
161