11990-190/192
Thermals
24
R1.0, October 2018
7 Thermals
The Schroff 14 slot ATCA Shelf provides airflow using two Fan Trays, one below
the card cage and one above the card cage. Each Fan Tray has 6 fans moving
air from the bottom to the top of the Shelf in a push-pull arrangement. This
arrangement provides excellent airflow as well as fault tolerance in the unlikely
event of a fan failure.
7.1 System Airflow Path 11990-190
Figure 17: System Airflow Path
Overall airflow = 2360 m³/h (1380 CFM)
Front slot airflow = 135 m³/h (80 CFM) at the lowest performing slot
Rear slot airflow = 18 m³/h (11 CFM) at the lowest performing slot
(Air flow measured with CP-TA boards)
