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PICs for the M40e Router

This section describes how to install or replace a PIC on the M40e router. The procedure for replacing a PIC in an M40e router depends on the type of FPC into which it is installed:

Installing or Replacing PICs in an M40e FPC

This section describes how to install or replace a PIC in an M40e FPC.

Removing an M40e FPC

To remove an M40e FPC, follow this procedure:

  1. Place an antistatic foam mat on a flat, stable surface to receive the M40e FPC. If a foam mat is not available, use a standard flat antistatic mat but use extra care when laying the FPC on it to avoid damaging the electrical components. If any of the PICs on the FPC use 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 later reconnect the cables to the correct PICs.
  4. Take the M40e 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 located on the craft interface directly above the FPC slot.
  5. Disconnect the cables from the PICs on the M40e FPC. If a PIC uses fiber-optic cable, immediately cover each transceiver and the end of each cable with a rubber safety cap. Arrange the disconnected cables in the cable management system.
  6. Unscrew the thumbscrews at the top and bottom of the FPC.
  7. Pull the ends of the ejector levers, which are adjacent to the thumbscrews, away from the face of the M40e FPC until they are nearly perpendicular to it (see Figure 6).
  8. Grasp the M40e FPC with both hands and slide it about halfway out of the card cage.
  9. Place one hand under the M40e FPC to support it and slide it completely out of the chassis. Set the M40e FPC on the antistatic foam mat that you prepared in Step Step 1, component-side down and with the PIC faceplates facing you.   

    The weight of the M40e 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 M40e 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 the M40e FPC component-side down on the antistatic mat, particularly if the mat is not made of foam.

    Do not stack the M40e FPC on top of or under any other component.

    Figure 6: Removing an M40e FPC

    Image g001945.gif

Removing a PIC from an M40e FPC

Before removing a PIC from an M40e FPC, you must first remove the M40e FPC from the chassis (see Removing an M40e FPC). Then follow this procedure:

  1. Place an electrostatic bag or antistatic mat on a flat, stable surface to receive the PIC.
  2. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  3. With the M40e FPC lying component-side down and with the PIC faceplates facing you, use a screwdriver to loosen the two screws that secure the PIC to the FPC.
  4. Carefully turn over the M40e FPC and lay it on the mat component-side up with the PIC faceplates facing you.
  5. Arrows on the M40e FPC indicate the position of metal bars that are attached to the PIC circuit board near the front end. To remove the PIC from the slot, place a finger behind each bar and pull the PIC toward you gently but firmly.   

    Do not grasp the PIC anywhere other than at the metal bars described in the instructions. Do not touch or apply force to the PIC's heat sinks, circuit boards (even at the edges), or other electronic components.

    You might need to rock the PIC back and forth to loosen it from the connector in the M40e FPC slot. To avoid bending the pins on the connector, use the smallest and gentlest motion possible.

  6. Place the PIC in the electrostatic bag or on the antistatic mat that you prepared in Step Step 1.

Installing a PIC in an M40e FPC

To install a PIC in an M40e FPC, follow this procedure:

  1. Attach an ESD wrist strap to your bare wrist and connect the wrist strap to one of the two ESD points on the chassis.
  2. With the FPC lying on an antistatic foam mat component-side up and with the PIC faceplates facing you, push the PIC part way into the slot. Carefully align the tabs on the PIC connector with the notches in the connector at the rear of the M40e FPC slot, and push the PIC in until the connectors join.

    If the pins on the FPC connector are not aligned properly with the holes in the PIC connector, the pins might be bent or the holes damaged. Either kind of damage can prevent the PIC and FPC from functioning correctly.

  3. Carefully turn over the M40e FPC and lay it on the mat component-side down with the PIC faceplates facing you.
  4. Using a Phillips screwdriver, tighten the two screws that secure the PIC in the FPC.

Installing an M40e FPC

To install an M40e FPC, follow this procedure:

  1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  2. Verify that the ends of the ejector levers, which are located at the ends of the M40e FPC, are pushed outward, nearly perpendicular to the face of the FPC.
  3. Grasp the front of the M40e FPC with one hand and place the other hand under the FPC to support it.

    Do not hold the M40e FPC by the ejector levers, bus bars, or edge connectors. They cannot support its weight.

  4. Align the rear bottom corners of the M40e FPC with the guides at the bottom of the desired FPC slot. Slide the M40e FPC all the way into the card cage until it contacts the midplane.  

    The lettering on the faceplates of the PICs is upside down when the FPC is installed in the chassis.

  5. Push the ends of the ejector levers inward until they are nearly flush with the face of the M40e FPC (see Figure 7).
  6. If any of the PICs on the FPC connect to fiber-optic cable, remove the rubber safety cap from each transceiver and cable.
  7. Insert the appropriate cable into the 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.
  8. Press and hold the FPC offline button on the craft interface above the slot that houses the M40e FPC to bring the M40e FPC and PICs online. When the M40e FPC is online, the FPC LED labeled OK on the craft interface lights steadily and you can release the offline button.

    Figure 7: Installing an M40e FPC

    Image g001946.gif

When a PIC is functioning normally, its status LED lights green. Some PICs have a single status LED and others have one LED per port. For more information, see the M40e PIC Guide.

You can also use the following CLI command to confirm correct PIC functioning:

user@host> show chassis fpc pic-status fpc-slot

For more information, see the JUNOS Protocols, Class of Service, and System Basics Command Reference.

For a PIC to function, you must add the necessary statements for it to the router configuration. For instructions, see the JUNOS Network Interfaces and Class of Service Configuration Guide.

Installing or Replacing PICs in an M40e Type 1 FPC or M40e Type 2 FPC

This section describes how to install or replace a PIC in an M40e Type 1 FPC or M40e Type 2 FPC.

Removing a PIC from an M40e Type 1 FPC or M40e Type 2 FPC

To remove a PIC from an M40e Type 1 FPC or M40e Type 2 FPC, follow this procedure:

  1. Place an electrostatic bag or antistatic mat on a flat, stable surface to receive the PIC. If the PIC 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. If the PIC has multiple ports, label the cable connected to each port so that you can later reconnect the cables correctly.
  4. Take the PIC offline by pressing and holding its offline button until the PIC status LED lights red to indicate failure, which usually takes about 5 seconds. Some PICs have a single status LED and others have one LED per port; for more information, see the M40e PIC Guide. The offline buttons for the PICs on an M40e Type 1 FPC are on the FPC itself. The offline button for a PIC on an M40e Type 2 FPC is on the PIC faceplate.
  5. Disconnect the cables from the PIC. If the PIC uses fiber-optic cable, immediately cover each transceiver and the end of each cable with a rubber safety cap. Arrange the disconnected cables in the cable management system.
  6. Unscrew the thumbscrews at the top and bottom of the PIC faceplate simultaneously and at about the same rate (unscrewing 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).
  7. Slide the PIC out of the FPC (see Figure 8, which shows an M40e Type 1 FPC) and place it in an electrostatic bag or on an antistatic mat that you prepared in Step Step 1.

    Figure 8: Removing a PIC from an M40e Type 1 FPC

    Image g001913.gif

Installing a PIC in an M40e Type 1 FPC or M40e Type 2 FPC

To install a PIC in an M40e Type 1 FPC or M40e Type 2 FPC, follow this procedure:

  1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  2. Remove the PIC from its electrostatic bag and place it on an antistatic mat. If it connects to fiber-optic cable, verify that there is a rubber safety cap on each transceiver.
  3. Align the notches in the connector at the rear of the PIC with the notches in the PIC slot in the FPC and then slide the PIC in until it lodges firmly in the FPC (see Figure 9, which shows an M40e Type 1 FPC). 

    Be careful to insert the PIC straight into the FPC slot to avoid damaging the components on the bottom of the PIC.

  4. Tighten the thumbscrews at the top and bottom 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.
  5. If any of the PICs on the FPC connect to fiber-optic cable, remove the rubber safety cap from each transceiver and cable. 
  6. Insert the appropriate cable into the ports on the PIC. 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. 
  7. Press and hold the PIC offline button until the PIC status LED lights green to indicate normal functioning, which usually takes about 5 seconds. Some PICs have a single status LED and others have one LED per port; for more information, see the M40e PIC Guide. PICs in an M40e Type 1 FPC have their offline buttons on the FPC and PICs on an M40e Type 2 FPC have their offline buttons on the PIC faceplate.

You can also use the following CLI command to confirm correct PIC functioning:

user@host> show chassis fpc pic-status fpc-slot

For more information, see the JUNOS Protocols, Class of Service, and System Basics Command Reference.

For a PIC to function, you must add the necessary statements for it to the router configuration. For instructions, see the JUNOS Network Interfaces and Class of Service Configuration Guide.

Figure 9: Installing a PIC in an M40e Type 1 FPC

Image g001912.gif


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