Chapter 3 Installing and Removing Air Circulation Components

How to Install or Remove Air Circulation Components

Figure 3-2 System Air Filters

158365

1

2

3

4

1

Chassis air filter

3

Power tray and power supplies

 

 

 

 

2

Air intake grille

4

Power tray air filter

 

 

 

 

Note We recommend that you check the air filters once a month. Replace a filter when you notice a significant amount of dust.

Caution To remain NEBS compliant, the chassis air filter can be replaced only when the fan trays are not running.

The Cisco CRS-1 4-slot line card chassis airflow volumes are as follows:

Chassis airflow: Up to 880 cubic feet (24,919 liters) per minute

Power system airflow: Up to 60 cubic feet (1699 liters) per minute

How to Install or Remove Air Circulation Components

This section contains the following procedures:

Installing a Fan Tray

Removing a Fan Tray

Installing the Chassis Air Filter

Removing the Chassis Air Filter

Installing a Power Tray Air Filter

Removing a Power Tray Air Filter

Cisco CRS-1 Carrier Routing System 4-Slot Line Card Chassis Installation Guide

 

OL-10971-07

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Cisco Systems Cisco CRS-1 manual How to Install or Remove Air Circulation Components, System Air Filters