Short answer: Usually yes, you use them in pairs, but the “pair” can be a media converter on one end and a fiber switch (or SFP in a switch) on the other, as long as both sides speak the same speed, wavelength, and optical mode. Terminate your fiber optic cabling with two LC-style connectors or purchase a pre-terminated fiber optic cable with two LC-style connectors. When connecting terminated duplex fiber optic cable between two network switches, ensure the connections are reversed between the SFP transceiver ports. Most modern fiber-enabled network switches require an SFP transceiver module featuring a duplex (two strand) multimode OM3 or duplex single mode OS2 connection with LC connectors. These terminations must be of the right style, installed in a. Fiber media converters quietly solve a big, practical problem: they bridge copper Ethernet to fiber and extend links far beyond copper's reach. Network topology refers to the way in which the links and nodes of a network are arranged in relation to each other.
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