CWDM X2 transceiver series is designed for CWDM optical data communications such as 10G Ethernet 10GBASE-ER/EW/ZR and 10G Fibre Channel 1200-SM-LL-L applications. There are 18 center wavelengths available from 1270 nm to 1610 nm, with each step 20 nm. Maximum optical budget is 23dB .

The transceiver consists of two sections: The transmitter section consists of a directly modulated uncooled CWDM DFB/EML laser, driver and signal conditioner. The receiver section incorporates a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and signal conditioner or APD. 

CWDM XENPAK are available on XENPAK to SFP+ converter and CWDM SFP+. More and more customers prefer CWDM X2 based on X2 to SFP+ converter and CWDM SFP+. Can be used with single fiber CWDM system or dual fiber CWDM system。