The series is high performance module for optical fiber communications by using 1310 nm transmitter and 1310 nm receiver. The transceiver is provided with the ST receptacle that is compatible with the industry standard ST connector. Also, it is a class 1 eye safety product according to International Safety Standard IEC-825. A LVPECL logic interface simplifies interface to external circuitry. Operating temperature is from 0℃ to 70 ℃.