Control module with integrated digital decoder (MM, DCC) for two Viessmann signals with multiplex technology e.g. Ks signals (404x) and standard light signals (4720 - 4730). The module controls two independent main signals (also Hp/Vr combinations) and recognizes the connected signals automatically. This module is the ideal control for the signal bridge 4750 - all mounted signals are reliably controlled by the module. The module has pushbutton control panels 5545, 5546 and 5547, track contacts and by digital switching commands. SpeedBus allows convenient connection to the Commander with automatic login. The module corresponds to 5229, but without signal bus. The signal connection is made via a single plug-in connection. Smooth light change between the signal images. Button for address setting and DIP switch for configuration, LED for status indication.