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Replacing an M120 CFPC

 

The router holds up to two CFPCs, which are installed vertically in the front of the router. The CFPCs are hot-insertable and hot-removable. When you remove a CFPC, the router continues to function. Each CFPC weighs approximately 2 lbs. (0.9 kg.) To replace a CFPC, perform the following procedures:

Removing an M120 CFPC

To remove a CFPC (see Figure 1):

  1. Have ready a replacement CFPC or a blank panel and an antistatic mat for the CFPC.
  2. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  3. Use one of the following methods to take the CFPC offline:
    • Press and hold the CFPC online/offline button. The green STATUS LED next to the button begins to blink. Hold the button down until the LED goes out. The LEDs and online/offline button for each FPC are located directly above it on the craft interface.

    • Issue the following CLI command:

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

      For more information about the command, see the CLI Explorer.

  4. Remove the cable from the transceiver on the CFPC faceplate.
  5. Pull the lower end of the ejector lever away from the CFPC faceplate to unseat the CFPC.
  6. Continue to pull the lever toward you and slide the CFPC straight out of the card cage halfway.
  7. Place one hand around the front of the CFPC and the other hand under it to support it. Slide the CFPC completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag.Caution

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

    Place each individual CFPC in an individual electrostatic bag or on its own antistatic mat on a flat, stable surface.

  8. If you are not reinstalling a CFPC into the emptied CFPC slot within a short time, install a blank CFPC panel over the slot to maintain proper airflow within the router.Caution

    After removing a CFPC from the chassis, wait at least 30 seconds before reinserting it, removing a CFPC from a different slot, or inserting a CFPC into a different slot.

Figure 1: Removing an M120 CFPC
Removing an M120 CFPC

Installing an M120 CFPC

To install a CFPC (see Figure 2):

  1. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  2. Place the CFPC on the antistatic mat.
  3. Take the CFPC to be installed out of its electrostatic bag and identify the slot on the CFPC in which it will be installed.
  4. Verify that the transceiver has a rubber safety cap covering the PIC transceiver. If it does not, cover the transceiver with a safety cap.
  5. Ensure that the CFPC is right-side up, with the text on the faceplate of the CFPC facing upward.
  6. Lift the CFPC into place and carefully align first the bottom, then the top of the CFPC with the guides inside the card cage.
  7. Slide the CFPC all the way into the card cage until you feel resistance.
  8. Pull the end of the ejector lever away from the CFPC faceplate, and hold the lever out while continuing to push on the CFPC faceplate to further install it into the chassis.
  9. When the CFPC is about 0.5 in (1 cm) from being fully inserted, release the ejector level and gently push on the CFPC faceplate until you hear a click as the CFPC contacts the midplane. The ejector lever engages and closes automatically.
  10. Remove the rubber safety cap from the transceiver on the CFPC faceplate.
  11. Insert the appropriate cable into the transceiver on the CFPC faceplate.
  12. Use one of the following methods to bring the CFPC online:
    • Press and hold the CFPC online/offline button until the green STATUS LED next to the button lights steadily, in about 5 seconds. The LEDs and online/offline button for each FPC are located directly above it on the craft interface.

    • Issue the following CLI command:

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

      For more information about the command, see the CLI Explorer.

Caution

After the OK LED lights steadily, wait at least 30 seconds before removing the CFPC again or removing the CFPC from the other slot.

You can also verify correct CFPC functioning by issuing the show chassis fpc command as described in Maintaining M120 FPCs and CFPCs.

Figure 2: Installing an M120 CFPC
Installing an M120 CFPC