Cisco Systems XR 12410 Manual de instalación descargar pdf (Pagina 56)

Chapter 2 Preparing for Installation

Site Requirement Guidelines

2-12

Cisco XR 12410 Router Installation Guide

OL-13832-01

Air Flow Guidelines

Cool air is circulated through the router by the blower module located at the top

of the chassis. The blower module maintains acceptable operating temperatures

for the internal components by drawing in cool air through the air filter in front of

the switch fabric and alarm card cage, and circulating the air through both card

cages (

Figure 2-6). Each power supply is also equipped with a fan that draws

cooler air into the front of the power supply and forces warmer air out of the back

of the chassis.

Figure 2-6 Air Flow Path through the Router—Side View

When selecting a site to install the router, observe the following guidelines:

• Dust free area—The site should be as dust free as possible. Dusty

environments can clog the air filter or power supply intake vents, reducing the

cooling air flow through the router. Clogged filters and vents can cause an

overtemperature condition in the router.

Air exhaust

Line card and RP card cage

Room air

Air filter

Switch fabric card cage

Blower module

Power supplies

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Cisco Systems XR 12410 Manual de instalación Pagina 56