Chassis Cooling System - Cisco 6000 Series Site Planning Manual

Chassis Cooling System

Chassis Cooling System
The Cisco NCS 6008 chassis has two fan trays, with six variable-speed fans each, that cool the chassis
card cages. Cool air flows in at the bottom front of the chassis, up through the chassis card cages, through
the fans in the fan trays, and exhausts out the top rear of the chassis. In addition, each AC or DC PM at
the top of the chassis has self-contained fans that pull in cool air from the front of the chassis and exhaust
warm air out the rear
Figure 2-20
2
1
2
3
4
5
Cisco Network Convergence System 6000 Series Routers Site Planning Guide
2-16
(Figure 2-20).
Airflow Through the Cisco NCS 6008 Chassis
6
5
4
3
1
Front side of chassis
Air inlet plenum
Air filter
Front cage for LCs
Fan trays
7
8
9
10
6
Air flow through PMs
7 Exhaust air from PMs
8 Air exhaust plenum
9
Rear cage for FCs and RP cards
10 Rear side of chassis
Chapter 2 Power and Cooling
OL-29236-02