Hybrid Electrical and Fiber-Optic Camera Cable for studio and broadcast use. A2 low bending loss and low water-peak fiber. SMPTE Engineering Documents are drafted in accordance with the rules given in Part XIII of its Administrative Practices. SMPTE Standard 311 was prepared by Technology Committee 32NF. At the time of publication no notice had been received by SMPTE claiming patent rights essential to the. SMPTE Standard (SMPTE ST 311) compliant cables for camera. Printing design differs from photograph. The cable is smaller in diameter and. anufactures the above cables in a wide range : Strength member in cor shield with 85% n all LEMO for mSummary: SMPTE Cable 311M hybrid cables have become the gold standard for 4K and 8K broadcasting, streamlining camera-to-CCU connections through a single line that delivers power, fiber optics, and control signals.