16 digital inputs primarily used to connect the KNX eco system to binary conventional switches. It then allows control of lights, dimming, fans, shutters, etc., over binary switches provided the control points are on KNX.

FEATURES

• 16 Individual inputs (non-isolated)
• LED indicator for individual input channels
• Suitable for switching, dimming, shutter, fan and scene control
• Programming button with LED indicator
• Dimension : 71.3 (L) X 90.5 (H) X 61 (D) mm (4 DIN units)
  
  https://ourican.com/products/knx/system-devices/mes-di-16/