Although the terms SDI cable and BNC cable are often used interchangeably, they refer to different aspects of a video transmission system. SDI (Serial Digital Interface) is a digital video transmission standard, while BNC is a type of coaxial connector commonly used to carry SDI signals.
Understanding the relationship between SDI and BNC is essential when selecting the right cable assembly for broadcast, professional AV, surveillance, and other high-definition video applications. Choosing the correct impedance, cable type, and connector ensures reliable signal transmission while minimizing loss and interference.
In this guide, we'll explain the differences between SDI and BNC, how they work together, why 75-ohm coaxial cables are the industry standard, and how to choose the right solution for your application.
👉 Learn more about SDI vs. BNC Cable: A Complete Guide