Low-speed Bi-Di TTL Transceiver Module:F-tone Networks’sFTTR-Bxx01-20xx series of transceiver modules are the perfect solution for Low-speed communication networks.The transceiver modules supplies the TTL interface of 5.0 Voltage and provide the system designer with products to implement a range of low-speed data and fiber MODEM designs at the DC 0~2Mbps rate for fiber communications.These modules are fully compliant with the Multi-sourced 1x9 protocol.The FTTR-Bxx01-20xx series is high performance module for single fiber communications by using 1310/1550nm transmitter and 1550/1310nm receiver. The transmitter section uses a multiple quantum well laser and is a class 1 laser compliant according to International Safety Standard IEC-825. The receiver section uses an integrated 1310/1550nm detector (PD) mounted in an optical header and a limiting post-amplifier IC. A TTL logic interface simplifies interface to external circuitry.