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Removing an IOC

An IOC weighs up to 13.1 lb (5.9 kg). Be prepared to accept its full weight.

To remove an IOC (see Figure 6):

  1. Have ready a replacement IOC or blank panel and an antistatic mat for the IOC. Also have ready rubber safety caps for each IOC 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 IOC so that you can later reconnect the cables to the correct ports.
  4. Use one of the following methods to take the IOC offline:
  5. Disconnect the cables from the IOC. If the IOC 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. Simultaneously turn both of the ejector handles counterclockwise to unseat the IOC.
  7. Grasp the handles and slide the IOC straight out of the card cage halfway.
  8. Place one hand around the front of the IOC and the other hand under it to support it. Slide the IOC completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag.

    Caution: The weight of the 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 IOC out of the chassis.

    When the 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 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.

  9. If you are not reinstalling an IOC into the emptied 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 6: Removing an IOC

Image g030243.gif


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