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The LED turns green when the SFP transceiver and the target device have an established
link.
The LED turns amber while STP discovers the network topology and searches for loops.
This process takes about 30 seconds, and then the LED turns green.
If the LED is off, the target device might not be turned on, there might be a cable problem, or
there might be a problem with the adapter installed in the target device. Refer to the
Troubleshooting section of your switch hardware guide for solutions to cabling problems.
Reconfigure and reboot the target device if necessary.
Remove SFP Transceiver Modules
Complete these steps in order to remove the SFP transceiver:
1. Attach an ESD-preventive wrist strap to your wrist and to the ESD ground connector or a bare
metal surface on your chassis.
2. Disconnect the network fiber-optic cable or network copper cable from the SFP Transceiver Module
connector.
For optical SFP transceivers, immediately reinstall the dust plugs in the SFP transceiver optical
bores and the fiber-optic cable LC connectors.
Tip: For reattachment of fiber-optic cables, note which connector plug is send (TX) and which is
receive (RX).
3. Release and remove the SFP Transceiver Module from the socket connector.
If the SFP transceiver has a Mylar tab latch, pull the tab gently in a slightly downward
direction until the transceiver disengages from the socket connector, and then pull the SFP
transceiver straight out. Do not twist or pull the Mylar tab because you could detach it from
the SFP transceiver.
If the SFP transceiver has an Actuator button latch, gently press the actuator button on
the front of the SFP transceiver until it clicks and the latch mechanism releases the SFP
transceiver from the socket connector. Grasp the actuator button between your thumb and
index finger, and carefully pull the SFP transceiver straight from the module slot.
If the SFP transceiver has a Bale-clasp latch, pull the bale out and down to eject the SFP
transceiver from the socket connector. If the bale-clasp latch is obstructed and you cannot
use your index finger to open it, use a small flat-blade screwdriver or another long narrow
instrument to open the bale-clasp latch. Grasp the SFP transceiver between your thumb and
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