SDI Routers

Professional and Broadcast SDI video matrix switchers - Avacab

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SDI Video Routers: The Heart of Your Professional Workflow
   
In the world of professional audiovisual production and broadcast, the ability to manage and distribute multiple video signals with maximum quality and reliability is fundamental. SDI video routers are the key solution for this challenge, acting as the central brain that allows any video source to be routed to any destination flexibly and instantaneously.
       

What is the SDI Signal?

SDI (Serial Digital Interface) is a digital video standard that has established itself as the backbone of broadcast and professional production infrastructure. Unlike analog signals or even other compressed digital formats, the SDI signal transmits uncompressed digital video (and often embedded audio) over a single coaxial cable. This guarantees impeccable image quality, minimal latency, and great robustness against interference, making it ideal for live and critical environments.
       
Over time, the SDI standard has evolved to support higher resolutions and bitrates:
SD-SDI: For standard definition video (e.g., 480i, 576i).
HD-SDI: For high-definition video (e.g., 720p, 1080i/p up to 30fps).
3G-SDI: For Full HD video (1080p up to 60fps).
6G-SDI and 12G-SDI: For Ultra HD video (4K up to 30fps and 60fps respectively), allowing high-resolution signal transmission with a single cable.
Emerging standards such as 24G-SDI for even higher resolutions.
       

What are SDI Video Routers and What is Their Use?

An SDI video router is an electronic device that allows you to connect multiple SDI video inputs to multiple SDI video outputs. Imagine a digital "crossroads" where you can direct the flow of a camera (input) to a specific monitor (output), a recorder, a switcher, or even multiple destinations simultaneously.
       
Their use is essential in:
     
Television and Production Studios: For quickly switching between cameras, video servers, graphics, and other sources for live broadcast or recording.
   
Outside Broadcast Vans (OB Vans): Managing complex video signals in sporting events, concerts, and outside broadcasts.
       
Control Centers and Operation Rooms: Allowing the visualization of multiple surveillance, data, or system sources on different screens.
       
Post-Production: Facilitating the routing of signals between editing equipment, color grading stations, and reference monitors.
       
Large Installations and Events: Where reliable distribution of high-quality video to numerous screens or projectors is required.
     

Types of SDI Routers: Classification for Your Project

SDI routers can be classified according to various criteria to adapt to the specific needs of each installation:
     
By Size (Number of Inputs and Outputs)
Compact: Ranging from small 4x4, 8x8, 16x16 routers, ideal for small studios, meeting rooms, or mobile productions.
   
Medium: Such as 32x32 or 64x64, suitable for medium-sized studios or control centers with a considerable number of sources.
   
Large (Modular): With configurations that can range from 128x128 up to 512x512 or more. These routers use interchangeable chassis and cards, allowing for maximum scalability and flexibility, making them the choice for large broadcast facilities.
             
By Supported SDI Standard
Some routers are designed for a single standard (e.g., HD-SDI only), while others are multi-format, supporting SD-SDI, HD-SDI, 3G-SDI, and even 6G-SDI or 12G-SDI, which makes them versatile for working with different resolutions.
               
By Architecture
Fixed: With a predefined number of ports, with no possibility of expansion. They are more economical and simpler.
     
Modular: Composed of a base chassis where input and output cards, processing cards, and control cards are inserted. They offer maximum flexibility to configure size, signal type, and functionalities.
       
By Additional Functionalities
Some SDI routers include integrated functions such as scalers (to adjust output resolution), format converters, audio embedders/de-embedders, or even videowall capabilities.
             
Whether you need a compact router for a portable studio or a scalable modular solution for a Broadcast production center, at Avacab Audiovisuales you will find the right equipment to optimize your SDI video workflow. Our team of experts is available to advise you on choosing the perfect router for your specific needs.
     
Explore our options and take your audiovisual production to the next level with the reliability and performance that only SDI routers can offer!
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