Chapter 19: Monitoring the Cooling System
Figure 119 shows the T640 routing node airflow.
Figure 119: T640 Routing Node Cooling System and Airflow
Front view
Air flow (front boards)
Rear view
Air flow (back boards)
Side view
Air flow (front boards)
Fan tray
Card cage Left Right Front Rear
Card cage
Fan tray
Air intake cover
Understanding the Cooling System !
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JUNOS Internet Software Network Operations Guide: Hardware
Figure 120 shows the T640 routing node cooling system components.
Figure 120: T640 Routing Node Cooling System Components
T640 front T640 rear
Rear fan tray
Air exhaust
Front top fan tray
Rear air filter
Front air filter
Front bottom fan tray
Air intake
See Also “Monitoring Power Supplies” on page 217
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Understanding the Cooling System
