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Cisco DFC3B Installation Note page 29

Distributed forwarding card 3 for ws-x67xx modules
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Reinstall the Ethernet module in the chassis.
Step 8
If you are unsure about the correct procedure for installing an Ethernet module in the switch chassis,
refer to the
installation instructions.
Installing the DFC3B, DFC3BXL DFC3C, and DFC3CXL Daughter Cards on
Ethernet Modules Equipped with a Stiffener Bracket
Some early versions of the WS-X6748-GE-TX Ethernet module have a stiffener bracket mounted across
the top front part of the module. This stiffener bracket requires a modified procedure to install the DFC3
daughter card.
During this procedure, wear grounding wrist straps to avoid ESD damage to the card. Do not directly
Warning
touch the backplane with your hand or any metal tool, or you could shock yourself. Statement 94
To install the DFC daughter card on an early version of the WS-X6748-GE-TX Ethernet module that is
equipped with a stiffener bracket, follow these steps:
Attach an ESD grounding strap to your wrist and to ground.
Step 1
If you are unsure about the correct way to attach an ESD grounding strap, refer to
Grounding Strap" section on page 42
Remove the new DFC3 daughter card from the antistatic bag and the installation hardware from the bag.
Step 2
Note
Step 3
Position the DFC3 daughter card over the Ethernet module, and slightly tilt the DFC3 daughter card so
that the back end will clear the module connectors.
Step 4
Carefully slide the DFC3 under the two stiffener bracket tabs. (See
daughter card is under the two stiffener bracket tabs.
You must position the DFC daughter card under the two stiffener bracket tabs. If you install the DFC
Caution
daughter card above the two stiffener bracket tabs, you can permanently damage the DFC daughter card.
Align the mounting holes on the DFC3 daughter card with the male standoffs on the module. (See
Step 5
Figure
the remaining standoffs.
Note
78-15893-08
"Removing and Installing Ethernet Modules in the Chassis" section on page 34
The DFC3 daughter card is designed to be installed on different modules; therefore, there may
be more mounting holes on the DFC3 daughter card than there are standoffs on the module. Not
all mounting holes on the DFC3 daughter card are used in all installations. Visually verify that
there are standoffs beneath the mounting holes before installing the installation hardware.
21.) Make sure that the remaining mounting holes on the DFC3 daughter card are aligned with
You should visually verify that there are standoffs beneath the mounting holes before installing
the installation hardware.
Catalyst 6500 Series Distributed Forwarding Card 3 for WS-X67xx Modules Installation Note
Installing the DFC3B and DFC3C Daughter Cards
for instructions.
for
"Attaching Your ESD
Figure
21.) Verify that the DFC
29

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