General
Colour	White
Number of keys	12
Number of LEDs	12
Bargraph

The LCN-GT12W glass keypad from Issendorff is a white control panel for home automation, consisting of 12 buttons, 12 integrated LEDs, and a bargraph. It features an integrated button lock (TS) that can prevent unintended operation. The device is designed for flush installation in switchboards or distribution boxes and serves for visual and tactile control of electrical loads, lighting systems, or other automated functions in buildings. The glass surface provides a robust and clean appearance, which integrates well into modern interior concepts.

Applications
This keypad is suitable for use in residential and commercial spaces as well as in technical rooms such as distribution boxes. It is used in building automation systems where clear, organized control of multiple functions is required. The combination of buttons, LEDs, and bargraph enables visual feedback on the status of individual functions, such as the brightness of lighting or the operating state of a heating system. The integrated button lock offers additional safety, especially in areas where unintended operation should be avoided.

Functions and Equipment in Detail
The device includes 12 buttons, each combined with an LED. The LEDs serve as status indicators and can, for example, display the on or operating status of connected devices. The integrated bargraph allows the representation of a continuous value, such as the current brightness setting or the temperature in a room. The integrated button lock (TS) can be activated to disable button functions and thus prevent unintentional operation. The buttons are designed for mechanical operation and provide clear feedback when pressed.

Technology Explained Simply
The technology of the LCN-GT12W is based on a combination of mechanical buttons and electronic displays. The 12 buttons are connected to an electrical switch that closes a contact when activated. The associated LEDs are controlled by the control unit (e.g., an LCN module) and indicate the respective status. The bargraph consists of a series of LEDs that are switched on sequentially depending on a continuous signal (e.g., from a dimmer or temperature sensor) to form a visual bar. The integrated button lock (TS) is an electronic component that blocks the signals from the buttons when activated. The device is designed for installation in standard switchboards and requires appropriate mounting in a suitable housing.

Compatibility and Accessories
The keypad is designed for use in LCN systems and is connected to LCN modules that handle the control of buttons and displays. It is compatible with the corresponding LCN control units and modules, which receive the button signals and control the LEDs and bargraph. The connection is made via the electrical terminals in the device, which are connected to the LCN control system.

Installation and Mounting
Mounting is carried out in a suitable switchboard or distribution box. The keypad is installed into a corresponding cutout, with the housing dimensions meeting the requirements of the LCN-GT12W. The electrical connections are linked to the LCN control system, with polarity and signal assignment following the technical documentation. Installation requires basic knowledge of electrical installation and compliance with applicable regulations for electrical systems.

Operational Advantages
The LCN-GT12W offers clear, organized operation with 12 buttons and visual feedback via LEDs and bargraph. The integrated button lock increases safety, especially in public or shared spaces. The glass surface is robust, easy to clean, and visually appealing. Use in LCN systems enables flexible and expandable building automation, where the keypad can serve as a central control unit. The mechanical operation of the buttons ensures reliable and precise control of connected functions.