Network Card User Manual

Catalyst 6500 Series DFC3A, DFC3B, and DFC3BXL Installation Note

78-15893-06

Installing the DFC3 Daughter Card

Installing the DFC3 Daughter Card on Modules Equipped with a Stiffener

Bracket

Note Some early versions of the WS-X6748-GE-TX Ethernet modules have a stiffener bracket mounted across

the top front part of the module, which requires a modified procedure to install the DFC daughter card.

Warning

During this procedure, wear grounding wrist straps to avoid ESD damage to the card. Do not directly

touch the backplane with your hand or any metal tool, or you could shock yourself.

Statement 94

To install the DFC daughter card on a WS-X6748-GE-TX Ethernet module that is equipped with a

stiffener bracket, follow these steps:

Step 1 Attach an ESD grounding strap to your wrist and to ground. (If you are unsure about the correct way to

attach an ESD grounding strap, refer to “Attaching Your ESD Grounding Strap” section on page 40 for

instructions.)

Step 2 Remove the new DFC3 daughter card from the antistatic bag and the installation hardware from the bag.

Note 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 will be used in all installations. Visually verify

that there are standoffs beneath the mounting holes before installing the securing screws.

Step 3 Position the DFC3 daughter card over the 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 Figure 20.) Verify that the DFC

daughter card is under the two stiffener bracket tabs.

Caution You must position the DFC daughter card under the two stiffener bracket tabs. If you install the DFC

daughter card above the two stiffener bracket tabs, you can permanently damage the DFC daughter card.

Step 5 Align the mounting holes on the DFC3 daughter card with the male standoffs on the module. (See

Figure 20.) Make sure that the remaining mounting holes on the DFC3 daughter card are aligned with

the remaining standoffs.

Note You should visually verify that there are standoffs beneath the mounting holes before installing

the securing screws.

Step 6 Press down on the edge of the DFC3 daughter card (see Figure 20) to seat the DFC3 daughter card power

connector to the module power connector.