(Click to enlarge)

Architecture
The Indigo platform does embrace the tries and tested benefits of PC-architecture for communications and data processing, but does not utilize any of it's limiting factors, such as PCI bus infrastructure or Windows OS. The Indigo implements a dedicated high speed and reliable real-time bus architecture (xLink), that connects the DSP boards (Blades) internally and communicates with the proven and stable Linux OS. The Blades perform the actual video effects, where the Linux OS is used to provide a standard interface to the outside world. 

Frame
The Indigo has a mechanical 3U 19”housing. The systems are built to the highest broadcast standards  and contain replaceable components that are easily accessible from the front (fans, PSU, disks)

and back (Blades). A touchscreen in the front allows users to easily configure and monitor systems. 

Blade
The Blade DSP boards perform the video effects. The Indigo can be configures with up to nine Blades, which makes the Indigo easily scalable and enables high-speed, reliable performance. Each Blade generates a broadcast layer and can play out a number of media elements real-time and simultaneously: live audio and video inputs (both digital and analogue), video clips, animations, graphics, text and tickers. Effects include fading, scaling, cropping, movement and more.

with it's own independent in- and outputs. Within the cartridge, input and/or output boards can be installed, making the Blade easily customizable. 

Layering
The picture shows a configuration with three Blades. Each Blade generates a broadcast layer. In this example, layer 0 plays out a MPEG clip, layer 1 plays out a live input plus a TGA and layer 2 plays several texts. Layer 2 is on top and overlaps layers 0 and 1 layer 1 overlaps layer 0. Each Blade can play out a number of different media elements simultaneously: live audio and video inputs, video clips, animations, graphics, text and tickers.