Switch from one button - Alphatech (en)

This expansion module provides additional control equipment selected by pressing a button NUDV. Power module ensures flat wire connections, which connect the NC-mode, the condition is to have the motherboard power supply 12V. This cable is modified so that it is longer and has 3 crimping of the same design is to connect an external speaker, or IP cameras.
Faston molded end is connected to the button, which should be fitted with an external switch functions. Each button is equipped with two NUDV Faston, connect the cable for the one that allows proper function when connected to the second additional switch is permanently closed. On board the auxiliary switch, LED red light that indicates the switch.
Connector switch is labeled by convention (NC normally closed) COM (common) and NO (normally open), the changeover contact is galvanically isolated from other circuits and can therefore be used to control a wide range of devices.
The switch has a time constant of 2 seconds, which means that it will close after pressing the button immediately held closed for press and expands with 2 seconds after releasing the button.
NUDV can be equipped with one or more additional switch modules, the module switches from only one button, if you want such a feature of all the buttons, so it is possible to use Mode 4 for one of the standard switch on the motherboard NUDV.