Installation Guide

Table Of Contents
Inserting a fan module
Complete the following steps to replace the fan in a chassis. Refer to the illustration provided in Figure 58 on page 110.
NOTE
The SFM LED should transit to the OK state after approximately 30 seconds if all SFMs are OK on insertion.
1. Orient the fan and slide it into the chassis, supporting the fan from beneath as you install it, and pushing rmly to ensure that it
is seated.
2. Use the screwdriver to tighten the four captive screws (two each at the top and bottom of the module).
3. Verify that the fan module power LED displays a green light.
Verifying fan module operation
To verify fan module operation, complete the following steps.
1. Check the LEDs on the fan module to verify correct operation. For information about interpreting LED patterns, refer to
Interpreting fan module LEDs on page 83.
2. Enter the show environment fan command and note any error conditions.
Air
lter replacement schedule
The air lter is only used with systems that include a NEBS kit for NEBS compliance.
You can remove and replace an air lter when it gets too clogged with dirt and dust to operate eciently. You should perform regular
physical inspections to determine how often to replace the air lter. Maintaining clean air lters ensures optimal airow through the
devices.
Based on the trac and particulate levels of the installation location, the site operator should determine the appropriate replacement
intervals for the air lter. If the air lter were to become suciently blocked, the thermal policy of the device would notify the administrator
of an environmental issue with the system.
If a site-specic interval cannot be determined by the site operator, the lter should be replaced on an interval of every 3 months.
For more information about replacing the fan lter, refer to the NEBS manual for this device.
Air lter replacement schedule
ExtremeRouting SLX 9850-8 Hardware Installation Guide
9035475-02 Rev AA 111