Cisco ASR 903 Hardware Installation Guide

prevents dust from entering the unit and avoids possible damage to the components. The fan tray is IEC60950-1
compliant.
Figure 7: Cisco ASR 903 Fan Tray with Dust Filter and Dummy Cover (A903-FAN-E)
Dummy cover4LEDs1
Pull tab5Alarm2
—
Dust filter3
Dust Filter (A903-FAN-F)
The dust filter (see Figure 1-7 ) on the fan tray is a quadrafoam 45PPI filter which is 85 percent dust resistant.
A dummy cover (A903-FAN-F-B) secures the dust filter in the chassis. For installing the fan filter, see Installing
the Dust Filter .
Use the pull tab provided to easily access the filter.Note
Cisco ASR 903 Aggregation Services Router Hardware Installation Guide
11
Cisco ASR 903 Router Overview
Fan Tray

Cisco ASR 903 Specifications

General

Brand	Cisco
Model	ASR 903
Category	Network Router
Language	English