DES-7000/DES-7100 Layer 2 Switch User
’
s Guide
Unpacking and Setup
17
Hot Swap Procedure for Fan Tray Module
CAUTION
The Fan Tray Module can be replaced with the power on. If you
cannot replace the fan tray immediately (within two minutes) the
Switch chassis should be powered off to avoid damage from
overheating before the fan tray is removed.
Changing the fan tray module for the DES-7000 and DES-7100 is a simple procedure however if you
choose to do this while the Switch is powered on, be sure to have the replacement fan tray ready at
hand so the procedure can be completed as quickly as possible. It is not necessary to initiate the hot
swap procedure, the Master CPU will be aware of fan tray removal and insertion. Removal of the fan
tray will trigger the system alert buzzer and the Fan Fail LED indicator. Be sure to use proper ESD
grounding procedures to avoid electrostatic discharge. The procedure below describes this procedure
and changes to the LED indicators that occur.
WARNING
The fans will continue rotating for several seconds after power to
the unit is cut off. Use only the handle on the front of the fan tray
when removing the device to avoid risk of injury.
Inserting the fan tray into the DES-7100 chassis
To change the fan tray:
1. Unscrew the installation screws on each side of the module and pull the module from out of
the chassis. Be careful not to drop the fan tray when removing it.
2. Replace the fan tray module immediately if the Switch is powered on; insert the new unit using
the guides built into the chassis. It should glide easily into position if it is properly lined up.
3. Push the module toward the backplane of the chassis until the front of the module is flush with
the front panel of the chassis. You will need to apply firm pressure for about the last half
centimeter to establish the contacts and firmly position the unit in the backplane.
4. The fan tray will power on and be recognized by the Master CPU. You should see the Hot
Swap & Card Status LED indicator on the Master CPU module blink for about 13 seconds
while the unit is recognized.
Tighten the installation screws on the fan tray module. Observe the Fan/Fail LED indicator on the
Master CPU module to make sure it is functioning normally: dark for normal function, blinking amber if
there is a problem. The unit is now completely installed.
Содержание DES-7000 Series
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