Replacing A Combined Power Supply And Fan Assembly In A Vdx 6720/6730-24 - Brocade Communications Systems VDX6720 Hardware Reference Manual

5
Replacing a combined power supply and fan assembly in a VDX 6720-24
Examples of airflow symbols:
FIGURE 10
The green E symbol indicates an exhaust FRU. This unit pulls air in from the port side of the switch
and exhausts it out the non-port side. This is called front-to-back airflow or forward airflow. This
symbol should appear on FRUs with part numbers ending with -F.
The orange I symbol indicates an intake FRU. This unit pulls air in from the non-port side of the
switch and exhausts it out the port side. This is called back-to-front airflow or reverse airflow. This
symbol should appear on FRUs with part numbers ending with -R..
The show environment fan command will indicate either "forward" or "reverse" airflow.
Replacing a combined power supply and fan assembly in a VDX
6720/6730-24
Figure 11
The Network OS identifies the FRUs from left to right as power supply and fan assembly #2 and
power supply and fan assembly #1.
1
2
3
4
FIGURE 11
CAUTION
Disassembling any part of the power supply and fan assembly voids the warranty and regulatory
certifications. There are no user-serviceable parts inside the power supply and fan assembly.
Because the cooling system relies on pressurized air, do not leave any of the fan assembly slots
30
AIRFLOW
AIRFLOW
Examples of airflow symbols:
shows the two combined power supply and fan assemblies in the Brocade VDX 6720-24.
2
1
Power supply and fan assembly #2 5
Power cord receptacle
Status LED
On/off switch
Brocade VDX 6720/6730-24 power supply and fan assemblies on the non-port side
3 4 5 6
7
Handle
6 Airflow label
7 Captive screw
8 Power supply and fan assembly #1
8
Brocade VDX 6720/6730 Hardware Reference Manual
53-1002084-01