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Removing and Installing MX10008 MPC Components

 

An MX10008 Modular Port Concentrator (MPC) is a field-replaceable unit (FRU) that you can install in any of the line card slots on the front of the chassis. An MPC is hot-insertable and hot-removable; you can remove and replace them without powering off the router or disrupting router functions.

How to Handle and Store an MX10008 MPC

  1. Handling MPCs

  2. Storing MPCs

Handling MPCs

Pay proper attention to how you are handling MPCs. Because MPCs are installed horizontally, we recommend that you hold them by the sides of the units when they are not in the chassis. A running MPC can be hot, use heat protective gloves, and allow the unit to cool half way out of the chassis before removing.

To handle e an MPC properly:

  1. Orient the MPC so that the faceplate of the unit is toward you.
  2. Grasp each side of the unit firmly as you slide the unit out of the chassis.
  3. Take care not to strike the unit against any object as you carry it.Caution

    Never hold an MPC by the connector edge. The connectors are fragile. You cannot seat an MPC properly if the connectors are damaged (see Figure 1).

    Figure 1: Connector Edge of an MPC
    Connector Edge of an
MPC
      1
    Connectors
     
  4. If you must rest an MPC on an edge, place a cushion between the connector edge and the surface.Caution

    Do not stack MPCs on top of one another or on top of any other component.

  5. Place each MPC in an individual antistatic bag or separately on an antistatic mat that is placed on a flat, stable surface.

Storing MPCs

You must store MPCs either in the chassis or in a spare shipping container, horizontally and sheet-metal side down. Do not stack these units on top of one another or on top of any other component. Place each unit in an individual antistatic bag or separately on an antistatic mat placed on a flat, stable surface.

Note

Because these MPCs are heavy, and because electrotatic bags are fragile, inserting an MPC into the bag is best done by two people.

To insert an MPC into an antistatic bag with the help of another person:

  1. Hold the unit horizontally with the faceplate toward you.
  2. Have the second person slide the opening of the antistatic bag over the connector edge and then pull the bag to cover the unit.

To insert an into a bag by yourself:

  1. Lay the unit horizontally on an antistatic mat that is on a flat, stable surface, with the sheet-metal side of the unit facing down.
  2. Orient the unit with the faceplate toward you.
  3. Carefully insert the connector edge into the opening of the bag, and then pull the bag toward you to cover the unit.

Install an MPC in an MX10008

Before you install a line card in the router chassis:

  • Ensure that you have taken the necessary precautions to prevent antistatic discharge (ESD) damage. See Prevention of Electrostatic Discharge Damage.

  • Inspect the connector edge of the MPC for physical damage. Installing a damaged MPC might damage the router.

  • Ensure that you know how to handle and store the line card (see

  • Ensure that the router has sufficient power to power the line card while maintaining its n+1 power redundancy. To determine whether the router has enough power available for the line card, use the show chassis power-budget-statistics command.

  • In addition to the MPC, ensure that you have the following parts and tools available to install an MPC in the router:

    • ESD grounding strap

    • An antistatic bag or an antistatic mat

To install an MPC in the router chassis:

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist and connect the other end of the strap to one of the ESD points on the chassis. An ESD point is located above the status LED panel on the front of the router chassis. See Figure 2.
    Figure 2: ESD Point for MX10008 Chassis Front
    ESD Point for MX10008
Chassis Front
      1
    ESD point
     
  2. Remove the MPC cover by grasping the handles and pulling straight out to expose the slot for the MPC. See Figure 3.
    Figure 3: Remove the MPC Cover
    Remove the MPC Cover
  3. Remove the MPC from the antistatic bag and place on the antistatic mat. Inspect it for any damage before installing it into the chassis.Caution

    Do not lift the MPC by holding the edge connectors or the handles on the faceplate. Neither the handles nor the edge connectors can support the weight of the line card. Lifting the line card by the handles or edge connectors might bend them, which would prevent the line cards from being properly seated in the chassis. See Figure 4.

    Figure 4: MPC Connectors
    MPC Connectors
      1
    Connectors
     
  4. With the faceplate towards you, grasp and lift the MPC by the sides. An MPC can weigh up to 31.57 lb (14.32 kg). Be prepared to accept the full weight of the MPC as you lift the MPC.
  5. Align the sides of the MPC with the guides inside the chassis slot. Slide the MPC all the way into the slot until the handle holes align and you feel resistance. See Figure 5.
    Figure 5: Installing an MPC
    Installing an MPC
  6. Grasp both ejector handles, and simultaneously rotate them clockwise until the MPC is fully seated and the handles are vertical.
  7. Insert the appropriate cable into the cable connector ports on the MPC. Secure the cables so that they do not support their own weight.

    Place any excess cable out of the way in a neatly coiled loop, using the cable management system. Placing fasteners on a loop helps to maintain the shape of the loop.

    Caution

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

    Caution

    Avoid bending a 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.

Verify that the MPC is functioning correctly by using the show chassis fpc and show chassis fpc pic-status commands.

You can install the optional cable management kit after the card is installed.

Remove an MPC

If you have the optional cable management system, it is not necessary to remove the cable management system before removing the MPC. However, we recommend that you take the MPCs offline before removing them.

Before you remove an MPC from the router chassis:

  • Ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).

  • Ensure that you know how to handle and store the MPC (see How to Handle and Store an MX10008 MPC).

  • Ensure you have the following parts and tools available to remove an MPC from an MX10008 chassis:

    • ESD grounding strap

    • An antistatic bag or an antistatic mat

      Note

      Placing an MPC in an antistatic bag might require a second person to assist with sliding the MPC into the bag.

    • Replacement MPC or a cover for the empty slot

    • Heat resistant gloves

When you remove an MPC, the router continues to function, although the interfaces that are installed on the MPC that is being removed no longer function.

To remove an MPC from an MX10008 router chassis:

  1. Place the antistatic bag or antistatic mat on a flat, stable surface.
  2. Wrap and fasten one end of the ESD grounding strap around your bare wrist and connect the other end of the strap to one of the ESD points on the chassis. An ESD point is located above the status LED panel on the front of the router chassis. See Figure 6.
    Figure 6: ESD Point for MX10008 Chassis Front
    ESD Point for MX10008
Chassis Front
      1
    ESD point
     
  3. Label the cables connected to each port on the MPC so that you can reconnect the cables to the correct ports later.
  4. Use one of the following methods to take the MPC offline:
    • Press and hold the offline button on the MPC. The green OK/FAIL LED next to the button begins to blink. Hold the button down until the LED goes off.

    • Issue the following CLI command:

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

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

  5. Disconnect the cables from the ports that are installed in the MPC. Warning

    Do not look directly into a fiber-optic transceiver or into the ends of fiber-optic cables. Fiber-optic transceivers and fiber-optic cables 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 a cable. The safety cap keeps the port clean and prevents accidental exposure to laser light.

    Caution

    Avoid bending a 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. Arrange the disconnected cables in the cable manager to prevent the cables from developing stress points.
  7. Simultaneously turn both the ejector handles of the MPC counterclockwise to unseat the MPC.
    Figure 7: Removing an MPC
    Removing an MPC
  8. Put on the heat resistant gloves.
  9. Grasp the handles, and holding the MPC straight, slide it halfway out of the card cage.Caution

    The MPC and the handles may be hot. Allow a few minutes for the MPC and handles to cool by pulling out the MPC halfway out of the chassis.

  10. Grasp both sides of the MPC at the midpoint, and remove the MPC from the chassis. Slide the MPC completely out of the chassis, and place the MPC on the antistatic mat or in the antistatic bag.Caution

    The weight of the MPC is concentrated in the back end. Be prepared to accept the full weight of the MPC—up to 31.57 lb. (14.32 kg)—as you slide the MPC out of the chassis.

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

    Do not stack MPCs on top of one another after removal. Place each MPC individually in an antistatic bag or on its own antistatic mat on a flat, stable surface.

  11. If you are not installing another MPC into the empty card slot within a short time, install an MPC cover over the slot to maintain proper airflow in the card cage.Caution

    After removing an MPC from the chassis, wait at least 30 seconds before replacing it with another MPC, or inserting an MPC into a different slot.

Install the Cable Management System

The cable management system is an optional kit that can be ordered to organize and protect optical cabling attached to the line cards. After a card is installed, you can still remove the line card without needing to remove the cable management system.

Ensure that you have the following parts and tools available to install the cable management system on a line card:

  • Phillips (+) screwdriver, number 2

  • The cable management system

To install the cable management system (see Figure 8):

  1. Open the shipping carton of the cable management system and check that you have:
    • Two handle extensions

    • One cable tray

    Figure 8: Cable Management System Components
    Cable Management System
Components
      1
    Handle extensions
      2
    Cable tray
  2. Use the Phillips screwdriver to loosen and remove the screws on the two line card handles (see Figure 9).
    Figure 9: Removing the Screws on the Line Card Handles
    Removing the Screws
on the Line Card  Handles
  3. Replace the blue cap on each line card handle with the two handle extensions (see Figure 10).
    Figure 10: Adding Handle Extensions
    Adding Handle Extensions
  4. Tighten the screws into the handle extensions.
  5. Snap open the blue clips on the ends of the cable tray with your hands.
  6. Place the cable tray across the front of the line card so that the two ends of the cable tray are under the handle extensions.
  7. Snap close the blue clips of the cable tray around the handle extensions (see Figure 11).
    Figure 11: Adding the Cable Tray
    Adding the Cable Tray
  8. Drape the optical cables using one of the following methods:

    • Drape and tie the optical cables to the side (see Figure 12).

    • Drape some of the cables under the handle extension and some cables over the handle extension.

    Figure 12: Completed Cable Management System
    Completed Cable Management
System