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After you remove each PIC, immediately place it on an antistatic mat or in an
11.
electrostatic bag.
If you are not reinstalling a FPC into the emptied FPC slot within a short time, install
12.
a blank FPC panel over the slot to maintain proper airflow in the FPC card cage.
CAUTION: After removing an FPC from the chassis, wait at least 30
seconds before reinserting it, removing an FPC from a different slot, or
inserting an FPC into a different slot.
Figure 115: Removing a T640 FPC
Installing a T640 FPC
To install an FPC (see Figure 117 on page 225):
Chapter 17: Replacing T640 Router Hardware Components
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