XFP transceiver
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The XFP (10 Gigabit Small Form Factor Pluggable) is a hot-swappable, protocol independent optical transceiver, typically operating at 850nm, 1310nm or 1550nm, for 10 Gigabit per second SONET/SDH, Fibre Channel, Gigabit Ethernet and other applications, including DWDM links. It includes digital diagnostics similar to SFF-8472 but more extensive, that provide a robust management tool.