This 1G CWDM SFP EZX transceiver module provides a 120km transmission distance over single-mode fiber. It features a highly reliable CWDM DFB transmitter and APD photo-detector into a LC Duplex optical connector. There are 18 center wavelengths available from 1270nm to 1610nm with. The LS-BL55491G-A2C SFP transceivers are high performance, cost effective modules supporting data rate of 1. The transceiver consists of three sections: a DFB laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and. Each SFP transceiver module is individually tested to be used on a series of HW switches, routers, servers, network interface card (NICs) etc.