Kramer OC1N
Single Channel Optical Video Isolator


The Kramer OC-1N is a high quality optical video isolator. It is designed to provide complete isolation between video sources and receiving devices such as monitors, projectors, and VCR’s. The OC-1N can eliminate many problems related to video hum, ground loops, DC offsets and other factors which interfere with video picture quality. Rear panel controls allow fine-tuning of output video levels and frequency response. The OC-1N’s active opto-isolator circuit offers extremely linear response and wide frequency range compared to transformer-based units. Rear panel switches allow the user to select which ground will become floating - input, output, both, or none. It is rugged, dependable, and is housed in a compact enclosure which can also be rack mounted using the RK-50R kit, which holds two units in two vertical rack spaces.


  • Input:   1 composite video, 1Vpp/75ohm; on a BNC connector.   
  • Output:   1 composite video, 1Vpp/75ohm; on a BNC connector.   
  • S/N Ratio:   69 dB.   
  • Bandwidth (-3dB):   20MHz.   
  • Power Source:   230 VAC, 50/60 Hz, (115VAC, U.S.A.) 2.3 VA.   
  • Dimensions:   6.5” x 4.7” x 1.8” (16.5cm x 12cm x 4.5cm)
  • Weight:   1.6 lbs (0.72 kg) approx.   
  • Accessories:   Power cord
  • Options:   RK-50RN, 19” rack adapter
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