Brocade 7800 Extension Switch Hardware Reference Manual - Manual (Page 42)

The following table describes the power supply/fan assembly status LED colors, behaviors, and
actions required, if any.
LED behavior, description, and required actions TABLE 6
LED color and behavior Description Action required
No light Power supply and fan assembly is
not receiving power. Verify that the power supply and fan
assembly FRU is seated correctly.
Steady green Power supply and fan assembly is
operating normally. No action required.
Flashing green (for more than five
seconds) A power supply and fan assembly
fault has occurred for one of the
following reasons:
• The power supply or fan in the
assembly has failed.
• The FRU was disabled by a user.
• The FRU power switch has been
turned off or the unit has been
unplugged.
Take one of the following actions:
• Replace the FRU.
• Verify that the power supply/fan
assembly FRU is enabled.
• Check the power switch and
plug.
Time required
Replacing a fan assembly in the switch should take less than two minutes.
Items required
You need the following items to replace a power supply and fan assembly.
• New power supply and fan assembly FRU.
• Phillips-head screwdriver #1.
Replacing the power supply/fan assembly
Complete the following steps to replace a power supply and fan assembly.
1. Unscrew the captive screw on the power supply/fan assembly you are replacing using a Phillips-
head screwdriver.
2. Remove the power supply/fan assembly from the chassis by pulling the handle out, away from the
chassis.
3. Confirm that the new power supply/fan assembly has the same part number as the removed one.
4. Install the new power supply/fan assembly in the chassis:
a) Orient the new fan assembly as shown in the following figure, with the captive screw on
the right.
Time required
42 Brocade 7800 Extension Switch Hardware Reference Manual
53-1001350-05