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    Installing an FPC in an M40e Router

    To install an FPC (see Figure 1 and Figure 2):

    1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis. For more information about ESD, see Preventing Electrostatic Discharge Damage to an M Series, MX Series, or T Series Router.
    2. Verify that the ends of the ejector levers, which are located at each end of the FPC, are pushed outward, nearly perpendicular to the face of the FPC.
    3. Grasp the front of the FPC with one hand and place the other hand under the FPC to support it.

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

    4. Align the rear bottom corners of the FPC with the guides at the bottom of the FPC slot. Slide the FPC into the card cage until it contacts the midplane.
    5. Push the ends of the ejector levers inward until they are nearly flush with the face of the FPC.
    6. Tighten the thumbscrew at each end of the FPC to seat the FPC securely in the chassis.
    7. For each different PIC you install in the FPC:
      1. If the PIC uses fiber-optic cable, verify that there is a rubber safety cap over each transceiver on the faceplate. Install a cap if necessary.
      2. Slide the PIC into a slot in the FPC, aligning the notches in the connector at the rear of the PIC with the notches in the FPC slot and then firmly pushing the PIC into place.

        Caution: Insert the PIC straight into the FPC slot to avoid damaging the components on the bottom of the PIC.

      3. Tighten the thumbscrews at the ends of the PIC faceplate simultaneously and at about the same rate (tightening the two screws alternately or at very different rates can cause the PIC to become lodged in the FPC slot, making it difficult to turn the screws). Verify that the PIC is seated properly.
    8. If any of the PICs on the FPC connect to fiber-optic cable, remove the rubber safety cap from each transceiver and cable.

      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.

    9. Insert the appropriate cable into the cable connector ports on each PIC on the FPC. Secure the cables so that they are not supporting their own weight. Place excess cable out of the way in a neatly coiled loop, using the cable management system. Placing fasteners on a loop helps to maintain its shape.

      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.

      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.

    10. Use one of the following methods to bring the FPC online:
      • Press and hold the FPC offline button until the green OK LED next to the button lights steadily, in about 5 seconds. The LEDs and offline button for each FPC are located directly above it on the craft interface.
      • Issue the CLI command:

        user@host>request chassis fpc slot slot-number online

        For more information about the command, see the Junos OS System Basics and Services Command Reference.

      Caution: After the OK LED lights steadily, wait at least 30 seconds before removing the FPC again, removing an FPC from a different slot, or inserting an FPC in a different slot.

    You can also verify correct FPC and PIC functioning by issuing the show chassis fpc and show chassis fpc pic-status commands described inMaintaining M40e FPCs and Maintaining M40e PICs and PIC Cables.

    Figure 1: Installing an FPC in an M40e Router

    Image g001911.gif

    Figure 2: Connecting Fiber-Optic Cable to a PIC in an M40e Router

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    Published: 2010-10-28