Features: 1. single fiber bi-directional operation 2. Integrated WDM (wave division multiplex) coupler 3. Single +3.3V or +5V power supply 4. MSA compliant 2*5/2*10 SFF package with single SC receptacle 5. Isolation>35dB and Cross talk <-45dB, full-duplex sensitivity -31dBm 6. complies with Telcordia GR-468-CORE 7. Very low EMI and Certified ESD protection