Cisco Systems XR 12410 manual Air Flow Guidelines, Air Flow Path through the Router-Side View

Chapter 2 Preparing for Installation

Site Requirement Guidelines

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

Blower module

Air filter

Room air

Air exhaust

Line card and RP card cage

Switch fabric card cage

Power supplies

50396

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.

	Cisco XR 12410 Router Installation Guide
2-12	OL-13832-01