Installing an FPC

To install a replacement FPC, follow this procedure:

1. Attach an ESD wrist strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
2. Place the replacement FPC on an antistatic mat.
3. You must install or remove PICs before installing the FPC into the chassis. See the PIC and Transceiver Installation Instructions. If any PICs use fiber-optic cable, make sure that each transceiver is covered with a rubber safety cap.

   Warning: Do not look directly into a fiber-optic transceiver or into the ends of fiber-optic cables. Fiber-optic transceivers and fiber-optic cable connected to a transceiver emit laser light that can damage your eyes.

4. Grasp the front of the FPC with both hands. Orient the FPC vertically with the component side facing to the right. Be sure the FPC is right-side up.
5. Tilt the top of the FPC toward you slightly.
6. Carefully align the connector edge of the FPC with an empty slot in the chassis.
7. Gently rest the bottom edge of the FPC on the bottom edge of the slot opening. Do not rest the power connector on the slot.

   Caution: The FPC power connector is in the corner where the bottom and connector edges meet. If a power connector prong becomes bent, it no longer aligns with the female connector on the midplane, and the FPC no longer functions. Do not bend or otherwise damage the power connector prongs (see Figure 31).

   Figure 31: Avoiding Damage to Prongs on Power Connector

   

8. Tilt the top of the FPC toward the chassis until the FPC is completely vertical.
9. Slowly slide the FPC all the way into the card cage until you feel resistance. Figure 32 shows how to slide an FPC into a T320 router. The procedure is the same for the M320, T640, and T1600 routing platform.

   Figure 32: Installing a Replacement FPC in a T320 Router

   

10. Align the ejector handles on the FPC faceplate in a position close to horizontal.

    Caution: When the FPC is out of the chassis, do not hold it by the ejector handles or edge connectors. They cannot support its weight.

11. Simultaneously turn both ejector handles clockwise until you cannot turn them farther.
12. Remove the rubber safety cap from each fiber-optic PIC transceiver.
13. Insert the appropriate cable into the ports on each PIC transceiver on the FPC (see Figure 33).

    Figure 33: Connecting Fiber-Optic Cable to a PIC

    

14. Secure the cables so that they do not support their own weight. Use the cable management system to place excess cable out of the way in a neatly coiled loop,

    Caution: Do not let fiber-optic cable hang free from the connector. Do not allow fastened loops of cable to dangle, which stresses the cable at the fastening point.

15. Press and hold the FPC offline button until the green OK LED next to the button lights steadily in about 5 seconds. The LED and offline button for each FPC are directly above the FPC on the craft interface.