The OM-100 transceiver attaches to any IEEE 802.3u Ethernet 100BASE-TX card on a computer. This allows the computer to connect to a 100BASE-FX fiber optic Local Area Network over a pair of optical fibers.
Two OM-100s can also be connected back-to-back for a dedicated link. A switch flips the TX RX pairs which eliminates the need for crossover cables. The OM-100 is available with ST or SC connectors for singlemode or multimode fiber.
A low cost fiber optic hub can be implemented by connecting an OM-100 to each port of an inexpensive electrical hub.