Installation of multi-switch for normal and central shower networks for homes, villas, and palaces, just like the commercial sector such as hotels and hospitals, requires pre-design of internal circuits and networks, and calculation of the capacities of devices and communication equipment required to meet the needs of all rooms and television points required, in a way that allows each user full control over what they watch. Central shower networks have special specifications to prevent interference and noise, and for ease of maintenance and updating over time, so they are included as an element within our designs related to low current and within the executive and indicative engineering panels and diagrams. According to the client's needs, the points are counted and all design criteria are determined.