Grasp the connector body (not the cable!) of the fiber optic or copper cable. Never pull the cable itself to remove the connector. Whether you're upgrading bandwidth, replacing a faulty unit, or reconfiguring your topology, knowing. Disconnect and remove all interface cables from the ports on the transceiver module. Place the removed SFP transceiver in. Before connecting the optical module, clean the surface of the optical fiber to prevent dust and other contaminants from entering the optical module port, when there is foreign matter in the optical transceiver port, it will not work correctly. This article. Protect your SFP or SFP+ modules by inserting clean dust plugs into them after the fiber cables are removed, and be sure to clean the optic surfaces of the fiber cables before you plug them back into the optical bores of an SFP or SFP+ module. Always follow ESD prevention procedures when inserting.
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