Cisco Systems XR 12406 manual Top view

Chapter 1 Cisco XR 12406 Router Overview

Line Cards

If the air temperature inside the route processor and line card cage rises, the system environmental monitor shuts down all internal power to prevent equipment damage from excessive heat.

If the system detects that one of three fans within a blower module has failed, it displays a warning message on the console screen. If multiple fans fail, the system shuts down to prevent equipment damage.

Figure 1-10 Internal Air Flow—Top View

Air exhaust Air exhaust

Blower module

Room air

Room air

Air filter

Top view

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	Cisco XR 12406 Router Installation Guide
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