Multimode optical SFP transceivers use multimode fiber for shorter links, with some 10Gbps modules supporting distances up to 300 meters over 850nm fiber. Single-mode transceivers use single-mode fiber for longer links, with options supporting 1Gbps or 10Gbps transmission up to 20 kilometers, commonly over 1310nm fiber.

Match the transceiver’s cage type, data rate, fiber type, wavelength, connector, and transmission distance with the switch or network device and its installed fiber cabling. Also confirm device compatibility, and use matched A and B units for bidirectional single-mode SFP links.

For optical SFP transceivers, choose the connector that matches the fiber and equipment, such as duplex LC, simplex LC for bidirectional links, or MTP/MPO for certain QSFP28 applications. Match the wavelength and link distance to the fiber type and network design, with examples including 850 nm multimode links up to 300 meters, 1310 nm single-mode links up to 20 kilometers, and 1310 nm MTP/MPO links up to 2 kilometers.

Choose bidirectional optical SFP transceivers when you want to send and receive data over a single-mode fiber strand, using one LC connection and wavelength-division technology. Choose duplex models when your installation has two fiber strands available, with separate connections for transmitting and receiving, and verify that the transceiver type matches the switch and fiber specifications.