Removing and replacing an SFP transceiver

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When a failure occurs on an optical link in a control enclosure, the SFP transceiver in the port that provides the link might need to be removed and replaced.

About this task

No tools are required to complete this task. Do not remove or loosen any screws.

Although many components are hot-swappable, they are intended to be used only when your system is not active (no I/O operations). If your system is powered on and processing I/O operations, go to the management GUI and follow the fix procedures. Initiating the replacement actions without the assistance of the fix procedures can result in loss of data or loss of access to data.

Be careful when you are replacing the hardware components that are located in the back of the system. Do not inadvertently disturb or remove any cables that you are not instructed to remove.

CAUTION:
Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following information: laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam. (C030)

Electrostatic discharge precaution symbol When you replace this part, you must follow recommended procedures for handling electrostatic discharge (ESD)-sensitive devices

Procedure

  1. Carefully determine the failing physical port connection. In the Event Log, its location is identified by the following information.
    • Enclosure (MTM and serial number):
    • Canister (serial number):
    • Adapter (slot number):
    • Port (port number)
    Important:
    • For correct operation, use the correct replacement SFP transceivers with each adapter. See Replaceable units for the applicable information for your system.
      • Use only the appropriate 25 Gbps SFP transceiver in the 25 Gbps Ethernet adapters.
    • Removing the wrong SFP transceiver might result in loss of data access.

Replacing the SFP

  1. Locate the faulty SFP device.
  2. Record or mark the cable that is to be removed.
  3. Unlatch and remove the cable from the faulty SFP device.
    As Table 1 shows, the SFP transceiver and latching mechanism can vary per each type of host interface adapter.
    Table 1. SFP transceiver example
    Host interface adapter SFP transceiver example
    25 Gbps Ethernet (RoCe)
    Photograph of an SFP connector 25 Gbps adapter (RoCe)
    25 Gbps Ethernet (iWarp)
    Photograph of an SFP connector 25 Gbps adapter (iWARP)
    100 Gbps Ethernet
    Photograph of a 100G adapter
  4. Remove the faulty SFP transceiver from its aperture.
    1. Unclip the handle of the SFP transceiver.
    2. Pull on the handle of the SFP transceiver to slide it out of the slot.

Replacing the SFP

  1. Install the replacement SFP transceiver into the aperture that is vacated in step 5.
    1. Open the latch on the replacement SFP transceiver.
    2. Push the new SFP transceiver into the aperture until it stops.
    3. Close the release latch.
    4. Gently pull the SFP transceiver. If it is installed correctly, it does not move from its aperture.
  2. Reconnect the optical cable.
  3. Check the Event Log to confirm that the error is cleared. Mark the error as fixed or restart the node, depending on the failure indication originally noted.