Control module with integrated digital decoder (Märklin-Motorola, NMRA-DCC) for two Viessmann signals with multiplex technology, such as Ks signals (404x) and standard light signals (4720 - 4730). The module automatically detects the connected signals.

It features Viessmann Signalbus, Viessmann SpeedBus, and can be controlled via push-button control panels 5545, 5546, and 5547, through track contacts, and by digital switching commands. The Viessmann SpeedBus allows for convenient connection to the Commander with automatic registration.

The module 5229 is equipped and configurable to the same extent as module 5224. With the plug-in train control relay 5228, the module can automatically stop trains. This can be done either by cutting off the power supply before the signal or, in digital systems, more prototypically by switching to the brake module 5232 (for Märklin-Motorola) or a brake generator (for NMRA-DCC).

Whether controlled via push-button panels or contact tracks, the logic in the signal module ensures that when multiple buttons are pressed simultaneously, the red button always takes precedence. The signal connection is made via a single plug connection. Smooth light transition between signal aspects. Button for address setting and DIP switch for configuration, LED for status indication.