Analog Wall Switch 2 Button On Off

Description

Datasheet

The NS211 2 Button On Off Wall Switch is a versatile low voltage analog wall control designed for easy integration into existing building control systems. Connect the wall switch output signal to an analog input of a controller, gateway, or data acquisition unit. The analog voltage level indicates which button is pressed.

Key Features:

• 2 Tactile On/Off Buttons: Each button drives the analog output voltage to a specific level, which can be measured to determine which button is pressed. The effect is momentary, and the voltage drops to 0V or high impedance when the button is released. A pull-down resistance of 10-100kOhm at the acquisition unit input is recommended to detect the released state.
• Green LED Indicator: The LED lights up when a button is pressed and turns off when released, providing clear user feedback.
• 0-10V Analog Output: Ensures compatibility with various building control systems, making integration straightforward.
• Electro-Mechanical Switches: Debounce time of 50ms is recommended to prevent false readings. A low pass filter is suggested to counteract impedance-caused ringing.
• Reliable Detection Levels: Button detection levels are separated by 1V with a tolerance of +/-0.5V. Releasing the button will open the circuit, and with adequate pull-down termination, the open circuit level drops to 0V, indicating no button is pressed.

Technical Specifications:

• Power Supply: 12-24V DC, 10mA
• Connections: 3 Wire Screw Terminal

The NS211 is designed to provide precise and reliable control in various applications, ensuring a seamless user experience and efficient building management. Ideal for environments requiring precise on/off control, the NS211 is a robust solution for modern building control systems.