Kramer OC-1N: 1-Channel Video/Sync Optical Isolator

The Kramer OC-1N is a high-performance optical isolator designed for video and sync signals, delivering complete galvanic isolation between equipment to prevent the kinds of interference that degrade image quality. In professional AV environments—from busy control rooms to broadcast carts and on-set rigs—ground loops, DC offsets, and video hum can silently erode picture clarity and timing. The OC-1N provides a robust solution by transferring signals optically rather than electrically, effectively breaking ground paths and eliminating noise coupling that sneaks in through shared power or frame grounding. With a bandwidth of 20 MHz (-3 dB) and a single channel, this device is engineered for high-fidelity video transmission and precise sync operation, ensuring your signal remains clean, stable, and true to the source. The optical isolator circuitry is described as having an extremely linear response, which translates to faithful amplitude and timing characteristics across the signal path—an essential attribute when color fidelity and frame accuracy are critical. Whether you’re integrating cameras, switchers, processing gear, or displays in a demanding environment, the OC-1N helps you preserve the integrity of every frame while safeguarding your equipment from electrical noise, spikes, and misgrounding issues. By combining ease of installation with robust performance, Kramer provides a reliable tool for engineers and operators who demand consistent, professional-grade video and sync delivery across complex systems.

• Complete electrical isolation dramatically reduces ground loops and video hum by isolating the source and destination devices, preventing cross-ground contamination and protecting delicate electronics in busy AV networks. This isolation translates into a clearer image with fewer artifacts, better color accuracy, and more reliable timing across devices that share common equipment racks or power sources.
• 20 MHz (-3 dB) bandwidth supports high‑definition video signals and precise synchronization without noticeable attenuation or distortion. This bandwidth range ensures that typical consumer and professional video signals, including non-linear or high-frequency components, pass through with minimal tilt, preserving edge detail, jitter performance, and timing relationships essential for sync-critical applications such as genlocked systems or multi-camera color timing.
• 1-channel design offers a compact, straightforward solution for single-signal paths in dense AV setups. The streamlined channel count reduces complexity in rack or desk installations, simplifies cabling, and lowers the risk of miswiring in environments where multiple devices must be isolated without creating isolated signal chains for every path.
• Opto isolator circuitry with extremely linear response preserves signal integrity across the transfer path, minimizing DC offset and ensuring consistent amplitude and phase characteristics. An ultra-linear transfer characteristic means predictable performance even when your input signal experiences subtle variations, which is particularly important for precision video processing and when signals traverse various devices with differing input/output impedance.
• Rugged, reliable performance for professional environments ideal for broadcast carts, studios, command centers, and installations where dependable signal isolation is critical. The OC-1N is built to withstand the rigors of daily use, with stable operation across a range of temperatures and electrical environments, providing peace of mind in mission-critical workflows where even a momentary degradation can impact a live production.

Technical Details of Kramer 1-Channel Video/Sync Optical Isolator

• Bandwidth: 20 MHz (-3 dB)
• Channels: 1
• Isolation Type: Optical isolator circuitry
• Response: Extremely linear
• Applications: Video and sync signal isolation in professional AV and broadcast environments

How to install Kramer 1-Channel Video/Sync Optical Isolator

• Plan and prepare: Before connecting anything, review your system’s signal path and determine the input and output directions for the OC-1N. Choose appropriate high-quality cables and ensure the operating environment is free from excessive heat, moisture, or vibration. If your setup involves multiple devices sharing a common chassis or power supply, identify the devices you want isolated to maximize the benefits of galvanic separation.
• Place the device: Position the OC-1N in a secure, stable location where cables can be routed cleanly. If you’re installing it in a rack, ensure adequate airflow and avoid tight bends that could stress connectors. Proper labeling on the front and rear panels helps reduce misconfiguration during maintenance or system upgrades.
• Connect the input signal: Attach the source signal to the isolator’s input connector using a shielded cable appropriate to the signal type. Confirm that the connector is fully seated and aligned with the guidance in the product manual. A solid, right-angle or straight connection—depending on your layout—helps minimize mechanical stress on the connector and reduces the risk of intermittent contact.
• Connect the isolated output: Link the OC-1N’s output to the destination device using the corresponding output connector and cable. Ensure the path preserves the intended signal polarity and timing, and avoid mixing incompatible cable types that may introduce impedance mismatch or unexpected reflections at high frequencies.
• Cable management and testing: Route cables away from power lines, fans, or other sources of electromagnetic interference. Use ties or Velcro straps to secure them without over-tightening, which can damage connectors. Power on the system and perform a visual and functional check—verify that the video signal is clean, free from hum or ground-loop artifacts, and that synchronization remains stable across the receiving gear.

Frequently asked questions

• Q: What is the bandwidth of the OC-1N? A: 20 MHz (-3 dB). This ensures adequate headroom for common video and sync signals while preserving image detail and timing fidelity.
• Q: How many channels does the OC-1N provide? A: It provides 1 channel, making it a compact, focused solution for a single signal path that requires solid isolation without adding unnecessary complexity.
• Q: What problem does optical isolation solve? A: Optical isolation prevents galvanic coupling between devices, effectively eliminating ground loops, DC offsets, and related hum that can distort video and disrupt timing, which is especially important in mixed-power environments or setups with long interconnect runs.
• Q: Is the OC-1N suitable for video and sync signals? A: Yes. The product is specifically designed for video and synchronization paths, delivering reliable performance in professional AV configurations where signal integrity is paramount.
• Q: Do I need external power to operate the OC-1N? A: The available information does not specify external power requirements. For exact power details and any mounting considerations, refer to the official product data sheet or user manual provided by Kramer.