Disconnect the cable connector from the transceiver module. Never look directly into an optical module or the ends of optical fibers. Non-certified optical or copper modules. Small Form-factor Pluggable modules (SFP module) are the workhorses of modern network connectivity, enabling flexible fiber optic or copper links between switches, routers, firewalls, and servers. Whether you're upgrading bandwidth, replacing a faulty unit, or reconfiguring your topology, knowing. Integrated circuits and reference designs help you create a smaller and faster optical module design used in high-bandwidth data communication applications. It's essential to understand how to properly install and configure an SFP.