SFP module is the key components to convert the signal. If the PoE switch has SFP slot built-in, what you need is the SFP module installed in the slot. Next Take off dust protection cap on the SFP module and. In order to extend long distance network, it's common practical operation to use fiber optical cable to link two PoE switch. Classified as Power Sourcing Equipment (PSE), OmniConverter compact PoE switches. Connect two pre terminated fiber optic cable together easily What are SFP+, SFP28, SFP56 Creation Tips Many people get confused “SFP” when they search information about PoE Switch. more Many. Multi-User is a capability of a KVM switch that permits more than one user to control different network devices simultaneously but not concurrently. Dual Input Cords provide connection to separate primary and secondary power sources for PDUs with Automatic Transfer Switching (ATS) functionality. The Perle media converters function as a PoE switch, and support a variety of port configurations, including single or dual UTP and fiber ports.