The transceiver consists of three sections: a FP laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements. The LS-SM5506-80C SFP transceivers are high performance, cost effective modules supporting data rate of 622Mbps and 80km transmission distance with SMF. Trusted by 260K+ Enterprise Users. An SFP (Small Form-factor Pluggable) is a compact, hot-pluggable transceiver module that allows networking equipment — including switches, routers, servers, and media converters — to support different physical media, such as optical fiber or copper, without replacing the host hardware. This modular. Smartoptics SFP modules are for running various optical data communications such as 1/2G FC, Fast Ethernet and Gigabit Ethernet.