Cooling System And Airflow In A J-Ex8216 Switch - Dell PowerConnect J-EX8216 Hardware Manual

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Cooling System and Airflow in a J-EX8216 Switch

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NOTE: If the INPUT OK
cord is not installed properly or the power supply has failed.
If the
INPUT OK
supply is not installed properly or the power supply has an internal failure.
If the LED is lit, the power supply has failed and must be replaced. If the
FAIL
LED is blinking, add a power supply to balance the power demand and
FAIL
supply.
AC Power Specifications for J-EX8200 Switches on page 81
Power Requirements for J-EX8216 Switch Components on page 82
AC Power Cord Specifications for a J-EX8200 Switch on page 83
Connecting AC Power to a J-EX8200 Switch on page 131
The cooling system in a J-EX8216 switch consists of two fan trays. Each fan tray has nine
fans and two fan tray controllers. The fan trays are hot-insertable and hot-removable
field-replaceable units (FRUs).
Both fan trays install vertically on the front of the chassis, one on the top left and the
other on the bottom left. Each fan tray has a handle on the front faceplate that facilitates
handling of the fan tray. See Figure 27 on page 45.
LED and the OUTPUT OK
LED is lit and the
OUTPUT OK
LED are unlit, the AC power
LED is unlit, the AC power