Replacing Fan Trays - Juniper E120 - RELEASE 11.1.X HARDWARE GUIDE 3-25-2010 Hardware Manual

Failure to do this can result in file corruption in one or both cards. See JUNOSe System
Basics Configuration Guide, Chapter 6, Managing Modules for information about the
halt command.
1.
2.
3.
4.
Figure 29: NVS Card Slots and Eject Buttons
5.
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7.

Replacing Fan Trays

A tray of cooling fans provides forced air cooling for components in the router. The
fan tray is hot-swappable; you can replace it without powering down the system.
Obtain an antistatic container for the NVS card you plan to remove. (See "Storing
Modules and Components" on page 69.)
Be sure you have halted the SRP module using the halt command. See "Upgrading
a System That Contains One SRP Module" on page 71.
With a small flathead screwdriver, remove the faceplate from the NVS card slot
on the SRP module.
Eject the NVS card. (See Figure 29 on page 73.)
Slot 0 Insert a paperclip or similar device in the hole beneath slot 0 to eject
the NVS card.
Slot 1 Use a screwdriver or similar device to depress the button beneath
slot 1 and eject the card.
Remove the NVS card and place it in the antistatic container.
Insert the new NVS card into the slot and push it until it clicks into place.
Replace the faceplate on the NVS card slot.
Chapter 8: Maintaining the Router
73

Replacing Fan Trays