4. OperatingBarco – Argus X Terminal – DOC-3265-2 – user's manual – Revision 04 – May-2004 ________________________________________________________________________ 4-164.6.2 The video channelsFor digitalization of the analog video data, a hardware module (adapter) is necessary. This video adapter offersone or several inputs (port) of which only one can be active. Accordingly, the BIG VIDEO CARD has one videoadapter with three ports and the QUAD A NALOG VIDEO CARD has 4 adapters with one port each.With a distributed system, when more than one rendering machine is equipped with video-input cards, there is a variety of possibilities to combine adapters into video channels or touse them as single adapters.The BIG VIDEO CARDS and the 4 adapters of the QUAD A NALOG VIDEO CARD can be operated »individually«. That is, onevideo channel is available per video adapter. The corresponding video window can be displayed and moved overthe projection modules, which are connected to this rendering machine.jection modules, which are connected to this rendering machine.However, the video adapters in different rendering machines can also be combined into a »logic« channel. Thecorresponding video window can then be moved freely over all projection modules connected to these renderingmachines.Channel 1Channel 2 Channel 1A RGUSA RGUS12A RGUSARGUS1Figure 4-2video input cards in different rendering machinesleft: operated separately, right: as one logical channelIn the configuration file of Argus the video channels of a distributed system can beconfigured. See section 6.2.6 Advanced Argus configuration and 3.4.3 Configuring a distributed system.
