Gently pull the module latch or release ring, depending on the module design. To use an SFP optical module, first confirm that the host port is SFP-type. Figure 1 SFP Optical Module Installation. However, with the right approach and careful handling, you can safely remove a transceiver stuck in a switch without causing damage to your network equipment. There are two primary reasons why an SFP module might become stuck in a port: The SFP is wedged in the cage: This can occur due to slight. To connect an optical cable to an SFP module, use the appropriate patch cord (e. Once connected, verify that the port activity indicator is on and run diagnostic commands to check the module status. After removing the fiber jumper, insert a clean dust cover over it to protect the end face of the module.