Removing an M40e FPC

The FPCs on an M40e router are installed into the front of the chassis below the craft interface. Each FPC weighs up to 15 lb (6.8 kg).

Figure 10: Removing an FPC from an M40e Router

To remove an FPC, follow this procedure:

1. Place an antistatic mat on a flat, stable surface to receive the FPC. If you are removing an M40e-FPC from an M40e router, use a foam mat; if a foam mat is not available, use a standard flat antistatic mat, but use extra care when laying the M40e-FPC on it to avoid damaging the electrical components. If any of the PICs on the FPC uses fiber-optic cable, also have ready a rubber safety cap for each transceiver and cable.
2. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
3. Label the cables connected to each PIC on the FPC, so that you can reconnect each cable to the correct PIC later.
4. Take the FPC offline by pressing and holding down its offline button for about 5 seconds or until the red FAIL LED next to the button lights. The offline button for each FPC is on the craft interface directly above the FPC slot.
5. Disconnect the cables from the PICs on the FPC. If a PIC uses fiber-optic cable, immediately cover each transceiver and the end of each cable with a rubber safety cap. Carefully arrange the disconnected cables in the cable management system directly below the FPC card cage to prevent the cables from developing stress points.   

   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.

   Caution: Do not leave a fiber-optic transceiver uncovered except when inserting or removing cable. The safety cap keeps the port clean and prevents accidental exposure to laser light.

   Caution: Avoid bending fiber-optic cable beyond its minimum bend radius. An arc smaller than a few inches in diameter can damage the cable and cause problems that are difficult to diagnose.

6. If you must remove or replace PICs in an M40e FPC1 or M40e FPC2, do so now, before removing the FPC from the chassis. For instructions, see the PIC and Transceiver Installation Instructions. If you are removing or replacing PICs in an M40e-FPC, wait until Step  12.
7. Unscrew the thumbscrews at the top and bottom of the FPC.
8. Pull the ends of the ejector levers, which are adjacent to the thumbscrews, away from the face of the FPC until they are nearly perpendicular to it (see Figure 10).
9. Grasp the FPC with both hands and slide it about halfway out of the chassis.
10. Place one hand under the FPC to support it, and slide it completely out of the chassis.
11. Set the FPC on the antistatic foam mat that you prepared in Step  1.   

    Caution: The weight of the FPC is concentrated in the back end. Be prepared to accept the full weight—up to 15 lb (6.8 kg)—as you slide the FPC out of the chassis. Do not hold the FPC by the ejector levers, bus bars, or edge connectors. They cannot support its weight. To avoid damaging any components, use extra care when laying an M40e-FPC component-side up on the antistatic mat, particularly if the mat is not made of foam. Do not stack the FPC on top of or under any other component.

12. If you are removing or replacing PICs on an M40e-FPC, see the PIC and Transceiver Installation Instructions.