Cisco SFS 7008 - Manual (Page 36)

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In most cases, vital information can be recovered from the failed module. If you have the appropriate
support agreement, you may want to return the unit for diagnosis. Refer to
“Vital Product Data Storage”
on page 20 .
Locating the Power Supply Module
Both power supply units are located on the front of the chassis. When facing the front of the switch with
the bezel cover removed, the power modules are located in the top center bays of the Topspin 270
chassis. Refer to
Figure 1-1 for a diagram of the chassis.
Removing a Power Supply Module
Caution: Do not remove a Power Supply module without first loosening the screws with a phillips
screw driver.
1. Ground yourself appropriately.
2. Verify that you have a means of covering the slot before removing the module. Do not remove a
failed power supply unless you have a replacement or a blanking panel to install in its place, as
overheating may occur.
3. Make sure you have a #1 phillips screwdriver to disengage the fasteners.
Never place your hand inside an empty card or module bay. You should never have cause to place a
hand anywhere inside the Topspin 270 chassis.
4. Remove the bezel cover from the front of the switch.
5. Locate the power supply that you want to remove. Refer to
“Power Supply LEDs” on page 67 .
If you have two power supply modules installed, you can remove one of them without removing
power from the chassis. However, before removing a power supply, make sure that the redundant
power supply has the corresponding power cord installed. Each power supply is supported by a the
power cord that is directly behind it on the chassis.
6. Determine the power cord that is linked to the power supply module you want to remove. The
power cord and its corresponding power supply are situated in tandem, on the same half of the
chassis.
CAUTION: Make sure you do not remove the power cord of the functioning power supply.