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Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Installation Guide
OL-6256-17
Chapter 3 Installing and Removing Air Circulation Components
How to Install or Remove Air Circulation Components
Installing a Power Module Air Filter
This section describes how to install a power module air filter for the Cisco CRS 8-slot line card chassis.
For further information, see the “About Line Card Chassis Airflow” section on page 3-1. For complete
information on regulatory compliance and safety, see Regulatory Compliance and Safety Information for
the Cisco CRS Carrier Routing System.
Each power module has a serviceable air filter that is attached to the front of the power module and is
held in place by an air filter clip-on holder. The power module air filter faces outward from the front of
the chassis (see Figure 3-6).
Figure 3-6 Power Module Air Filter
Prerequisites
Before performing this task, you must first remove any front cover plates.
Caution Never operate the Cisco CRS 8-slot line card chassis without an air filter. Doing so can damage the
hardware.
Required Tools and Equipment
You need the following tools and part to perform this task:
• ESD-preventive wrist strap
• Medium flat-blade screwdriver
• Air filter (Cisco product number CRS-8-PWR-FILTER=)
1 Power module air filter 2 Air filter clip-on holder
POWER
OK
FLT
AC
FAIL
CB
TMP
LLM
OT
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