Install the Line Cards

---

Caution - Installing the line card is a methodical task and cannot be rushed. To prevent damage to the line card or the midplane XBOW connectors, pay close attention to the procedure and work slowly.

---

1. Identify the prerequisite and subsequent tasks you must perform in conjunction with this procedure, to install the switch.

   See the table in Installation Sequence.

2. Lift the line card from the work surface and orient it horizontally, with the link LEDs across the bottom.
3. Insert the line card into the chassis at slot 0.

   Ensure that the line card is square to the chassis and not skewed.

   
   

   ---

   Note - Once the line card is about halfway into the slot, it is no longer necessary to bear the weight of the line card.

   ---

4. Continue to slide the line card in, maintaining a squared orientation.

   When you feel resistance, stop.

5. While pressing the line card in with one hand, rotate the retainer bolts clockwise by hand so that they engage.

   When you feel resistance in the retainer bolts, stop.

6. Using a 20 mm socket and ratchet, turn the left retainer bolt 1/4 turn clockwise.
   
7. Turn the right retainer bolt 1/4 turn clockwise.

   ---

   Caution - Do not turn the retainer bolts more than 1/4 revolution each time. Turning more than 1/4 turn damages the line card and midplane XBOW connectors.

   ---

8. Repeat Step 6 and Step 7 about 12 times until you feel resistance to turning and the line card is flush to the front of the chassis.
9. Give each retainer bolt a torque of 2.0 ft-lb (0.27 kg-m).
10. Turn the left retainer bolt 1/4 turn counter-clockwise.
11. Turn the right retainer bolt 1/4 turn counter-clockwise.
12. Repeat Step 10 and Step 11 twice to relieve board deflection.
13. Verify that the line card is properly seated in the slot.
14. Repeat Step 2 through Step 13 for each line card to be installed.

    Install the cards into the following slots in the following sequence:

    0, 1, 2, 3, 4, 5, 6, 7, 8

15. Install the line card fillers into the vacant slots.
    1. Grasp the handles at each end of the line card filler and lift the filler to the vacant slot.
    2. Slide the filler into the chassis until it stops.
    3. While pressing the filler in with one hand, rotate the retainer bolts clockwise by hand so that they engage.

       When you feel resistance in the retainer bolts, stop.

    4. Repeat Step a through Step c for all remaining vacant slots.
16. Power on the CMCs.

    See Powering On the CMCs.

Related Information

• Switch Service, servicing line cards

• Line Card Distribution

• Remove the Midplane Stiffener

• Suggested Tools for Installation