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Replacing a CFM Card on the SRX3400 Services Gateway

 

The most common modules for the services gateway use theCFM format:

  • IOCs

  • NP-IOCs

  • SPCs

  • NPCs

Note

For the services gateway to meet NEBS and ETSI standards, it must not have any two SPCs installed side by side in the CFM slots in the front of the chassis (CFM slots 1 through 4). You can install SPCs side by side in the CFM slots in the rear of the chassis (CFM slots 5 through 7). See SRX3400 Services Gateway NEBS and ETSI Compliance for more information.

To replace a CFM card:

  1. Place an electrostatic bag or antistatic mat on a flat, stable surface.
  2. Attach an 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 to the SRX3400 Services Gateway.
  3. If you are replacing a cold-swap-only CFM, power off the services gateway. See Field-Replaceable Units on the SRX3400 Services Gateway for a list of hot-swappable and cold-swap-only components.

    To power off the services gateway, press the Power button on the front panel of the Switch Fabric Board (SFB) for three to five seconds.

    The PWR LED blinks to show you that the services gateway is shutting down. Wait for the services gateway to shut down before you proceed to the next step.

  4. If you are replacing a hot-swappable CFM such as an NP-IOC without powering off the services gateway, toggle the CFM offline and power it off by pressing its ONLINE button for five or more seconds.Note

    You may find it easiest to use a pen, screwdriver, or other tool to press the button.

  5. For IOCs or NP-IOCs, disconnect any cables connected to the Ethernet ports, marking them so they can be reconnected in the proper location. If the IOC or NP-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. Loosen the captive screws at each end of the CFM faceplate.
  7. Grasp the CFM by its handle and slide it halfway out of the chassis.
  8. Place one hand underneath the CFM to support it and slide it completely out of the chassis.
    Figure 1: Removing a CFM (IOC Shown, Other CFMs Similar)
    Removing a CFM (IOC Shown, Other CFMs Similar)
  9. Place the CFM on the antistatic mat. If you are not reinstalling a replacement CFM into the emptied slot within 30 minutes, install a blank panel over the slot to maintain proper airflow in the card cage.

    If you need to replace IOC transceivers, see Replacing SFP, SFP+, and XFP Transceivers on the SRX3400 Services Gateway; otherwise, continue with step 10.

  10. Carefully align the sides of the replacement CFM with the guides inside the chassis.
  11. Slide the CFM into the slot until you feel resistance, and then press the CFM's faceplate until it engages the connectors.
  12. Tighten the captive screws on the left and right of the CFM.
    Figure 2: Inserting a CFM (IOC Shown, Other CFMs Similar)
    Inserting a CFM (IOC Shown, Other CFMs Similar)
  13. If the CFM is an IOC or NP-IOC that uses fiber-optic cable, 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.

  14. If the CFM is an IOC or NP-IOC, insert the appropriate cables into the cable connector ports on the CFM. 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.

  15. If you replaced a hot-swappable CFM such as an NP-IOC without powering off the services gateway, power on and bring the new CFM online by pressing its ONLINE button for five or more seconds.Note

    You may find it easiest to use a pen, screwdriver, or other tool to press the button.

  16. If you powered off the services gateway to replace the CFM, power on the services gateway, as described in Powering On the SRX3600 Services Gateway.
  17. Check the OK/FAIL LED on the new CFM. The OK/FAIL LED on the CFM faceplate should blink green, then light steadily. If it is red, remove and reinstall the CFM. If the OK/FAIL LED remains red, the CFM is not functioning properly. Contact your customer support representative.
Warning

Never lift the services gateway using the handles on the front panels of CFM cards. The handles might come off, causing the chassis to drop and inflicting possible grave injury.