The Transition Networks TN-SFP-xxx series Small Form Factor Pluggable (SFP) transceiver modules are designed to install in any SFP port, connect single mode 1000Base-LX fiber-optic cable to the network through the SFP connector. The TN-SFP-xxx transceivers are designed for bi-directional serial-optical data communications such as Gigabit Ethernet or fiber channel. back Order