VPL Infotech & Consultant offers Digital Fiber Optic Trainer with RS232C Interface. VPL Infotech & Consultant designs and manufactures merchandising device programmers, device testers, etc. Digital Fiber Optic Trainer with RS232C Interface, model VMC-DFT is used for transmitting the digital signals and recovering them. The trainer consists of onboard square wave generator using IC 555. The kit can transmit digital signal from the keyboard of one PC & receive it on the monitor of another PC. This Digital Fiber Optic Trainer with RS232C Interface is ideal to understand the communication of digital signals using fiber optics cables.