HP Switch Fan Assemblies - Manual (Page 5)

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(2) Handle (The handle is in blue, indicating that the fan tray blows
cool air into the switch from the power side to the port side.)
(3) This side up sign
(4) Air flow sign
The switch provides a LED on the power side panel for each fan tray to
indicate the fan tray operating status. When the switch is running, the
LED can have the following states:
• Green—The fan tray is operating correctly.
• Red—No fan tray is installed or the fan tray is faulty.
Back-to-front airflow fan tray specifications
Table 1 Back-to-front airflow fan tray specifications
Item Specification
Number of fans
Five 40 Ч 40 Ч 56 mm (1.57 Ч 1.57 Ч 2.20
in) fans
Air flow direction From the switch power side to the port side
Max fan speed 22100 revolutions per minute (R.P.M.)
Max air volume 105 cubic foot per minute (CFM)
Max power
consumption
130 W
Min power
consumption
18 W
Voltage 12 V