Note: Cables are keyed so that they can be inserted in only one way. If a cable does not slide in easily,
ensure that it is correctly oriented. Do not insert any unsupported cable intended for an other type of
transceiver into a regular SFP+ transceiver. You may damage the cable as well as the transceiver.
Replacing an SFP+ transceiver
Complete the following steps to remove and then install a new SFP+ transceiver.
Note:
• Replacing an SFP+ transceiver may cause disruption in the fabric or to the attached device.
• Always use the pull tab to insert or remove the SFP+ transceivers, as the SFP might be hot.
1. Remove any cables that are inserted into the transceiver.
2. Grasp the SFP+ transceiver pull tab and pull the tab straight out.
Note: Grasp the tab near the body of the transceiver to reduce the chances of bending the pull tab. As
the SFP may be hot, avoid touching it.
3. To insert the replacement transceiver, refer “Installing an SFP+ transceiver” on page 42
Installing an SFP-DD transceiver
SFP double density (SFP-DD) transceivers are delivered with two dust caps. When inserting cables,
remove one dust cap and insert the cable, leaving the other dust cap in place. Then remove the other dust
cap and insert the next cable. If you are using only one cable in the transceiver, keep the other dust cap in
place to keep the transceiver clean.
Consider the following when installing these transceivers and cables:
Note:
• Always use the pull tab to insert or remove a transceiver, because the SFP-DD might be hot.
• You might find it easier to insert the cables into the transceiver first and then install the transceiver.
1. Use the pull tab on the SFP-DD transceiver to help push the transceiver into the port.
Transceivers are keyed so that they can be inserted only with the correct orientation. If a transceiver
does not slide in easily, ensure that it is correctly oriented. Push the correctly oriented transceiver into
the port until it is firmly seated and the latching mechanism clicks.
For the top row of ports, insert the transceiver so that the pull tab is on the bottom. For the bottom row
of ports, insert the transceiver so that the pull tab is on the top.
44 IBM Storage Networking SAN128B-7: SAN128B-7 Installation, Service, and User Guide