GAITHERSBURG, Md.–Optelecom has released a single-fiber, 20- to 64-channel video transmission system. Based on its 10-bit digital video transmission cards, the system may be configured to support 20 to 64 video channels on one fiber. Each video channel exceeds the RS250C Short Haul SNR specification of 67 dB. Using CWDM technology with four or eight video channels on each wavelength, up to eight wavelengths may be combined on one fiber. An optional digital stereo audio, data or contact closure may be added to each video channel without reducing the number of available channels. The system will support up to eight bi-directional data, audio or contact closure channels.