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Replacing Flex IOCs and Port Modules

You install flex IOCs and port modules horizontally in the front of the services gateway. You install flex IOCs directly in the card cage. You install port modules into flex IOCs. Flex IOCs and port modules are hot-insertable and hot-removable. When you remove a flex IOC or port module, the services gateway continues to function, although the flex IOC or port module being removed no longer functions. Before replacing a flex IOC or port module, review the information in Handling and Storing Cards. To replace a flex IOC or port module, use the following procedures:

Removing a Flex IOC

A flex IOC weighs up to 13.1 lb (5.9 kg). Be prepared to accept the full weight of the card as you remove it.

To remove a flex IOC (see Figure 57):

  1. Have ready a replacement card or blank panel and an antistatic mat for the flex IOC.
  2. 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.
  3. Use one of the following methods to take the flex IOC offline:
  4. If you have not already done so, remove the port modules installed in the flex IOC as described in Removing a Port Module.
  5. Simultaneously turn both of the ejector handles counterclockwise to unseat the flex IOC.
  6. Grasp the handles and slide the flex IOC straight out of the card cage halfway.
  7. Place one hand around the front of the flex IOC and the other hand under it to support it. Slide the flex IOC completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag.

    Caution: The weight of the flex IOC is concentrated in the back end. Be prepared to accept the full weight—up to 13.1 lb (5.9 kg)—as you slide the flex IOC out of the chassis.

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

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

  8. If you are not reinstalling a replacement card into the empty slot within a short time, install a blank panel over the slot to maintain proper airflow in the card cage.

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

Figure 57: Removing a Flex IOC

Image g030277.gif

Installing a Flex IOC

Note: Your services gateway must be running JUNOS version 9.5R1 or later in order to recognize flex IOCs and port modules.

To install a flex IOC (see Figure 58):

  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.
  2. Place the flex IOC on an antistatic mat or remove it from its electrostatic bag.
  3. Identify the slot on the services gateway where you will install the flex IOC.
  4. If you have not already done so, remove the blank panel from the slot where you are installing the flex IOC.
  5. Orient the flex IOC so that the faceplate faces you.
  6. Lift the flex IOC into place and carefully align the sides of the card with the guides inside the card cage.
  7. Slide the flex IOC all the way into the card cage until you feel resistance.

    Figure 58: Installing a Flex IOC

    Image g030276.gif

  8. Grasp both ejector handles and rotate them clockwise simultaneously until the flex IOC is fully seated.
  9. Use one of the following methods to bring the flex IOC online:

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

Removing a Port Module

Port modules are installed in flex IOCs in the services gateway card cage. A port module weighs up to 3 lb (1.4 kg). Be prepared to accept its full weight when you remove or install a port module.

To remove a port module (see Figure 59):

  1. Have ready a replacement port module or blank panel and an antistatic mat for the port module. Also have ready rubber safety caps for each port on the port module you are removing that uses an optical interface.
  2. 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.
  3. Label the cables connected to each port on the port module so that you can later reconnect the cables to the correct ports.
  4. Use one of the following methods to take the port module offline:
  5. Disconnect the cables from the port module. If the port module 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 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. Loosen the captive screws that retain the port module in its slot in the flex IOC.
  7. Grasp the captive screws and slide the port module straight out of the flex IOC halfway.
  8. Place one hand around the front of the port module and the other hand under it to support it. Slide the port module completely out of the flex IOC, and place it on the antistatic mat or in the electrostatic bag.

    Figure 59: Removing a Port Module

    Image g030273.gif

  9. If you are not reinstalling a port module into the empty slot within a short time, install a blank panel over the slot to maintain proper airflow in the card cage.

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

Installing a Port Module

To install a port module (see Figure 60):

  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.
  2. If you have not already done so, install the flex IOC in which you are installing the port module, as described in Installing a Flex IOC.
  3. Place the port module on an antistatic mat or remove it from its electrostatic bag.
  4. Verify that each fiber-optic transceiver is covered with a rubber safety cap. If it is not, cover the transceiver with a safety cap.
  5. If necessary, remove the blank panel covering the slot in the flex IOC where you are installing the port module.
  6. Orient the port module so that the faceplate faces you.
  7. Lift the port module into place and carefully align the sides of the port module with the guides inside the flex IOC.
  8. Slide the port module all the way into the flex IOC until it is fully seated.
  9. Tighten both captive screws to secure the port module in the flex IOC.

    Figure 60: Installing a Port Module

    Image g030272.gif

  10. If the port module uses fiber-optic interfaces, 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.

  11. Insert the appropriate cables into the cable connector ports on each port module. 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.

  12. Use one of the following methods to take the port module online:

    Caution: After the OK/FAIL LED turns green, wait at least 30 seconds before removing the port module again, removing a port module from a different slot, or inserting a port module in a different slot.

You can also verify that the port module is functioning correctly by issuing the show chassis fpc and show chassis fpc pic-status commands, as described in Maintaining IOCs and SPCs and Maintaining IOC Cables.


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