For the common case, just use the imagemap interface to bridge through those transcoders. The Web imagemap interface routes all levels. See the telect client page for details on the command-line syntax. There is a seventh level which is not in the Telect matrix. The high-bandwidth RGBS signals are routed through a manual patch panel, which is not computer controllable.
Sources are usually computers, sinks are usually high-end monitors or projectors.
This has been a big source of confusion. Currently, RGBS is deprecated and new items are added as CAV if possible. Troubleshooting There is a lot of documentation on these web pages, try reading them first. Note that most pages follow this page's format, with the commonly needed information at the top, followed by more detail, additional notes, then troubleshooting. You can also browse for information in the videolab email archives .