Cisco 12416 Installation And Configuration Manual page 71

Chapter 1 Product Overview
Figure 1-23 Cooling Air Flow
Bottom blower module
To ensure that there is adequate air flow to prevent overheating inside the card
cages keep the front and back of the router unobstructed. We recommend at least
6 inches (15.24 cm) of clearance.
Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
OL-11495-01
Top blower module
Air filter
Room air
Front
Power supply shelf
(Plenum)
Upper card cage
Middle card cage
Lower card cage
(Plenum)
Rear
Blower Module
Air exhaust
Air exhaust
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