KNX Digital Input Devices

KNX Digital Input Devices

The OPT-DIx-111 and OPT-DIy-121 are panel-mounted digital input devices designed for KNX-based building automation systems. These devices detect signals from dry contacts and transmit them to the KNX bus in the appropriate data format. They provide various channel options for use in both small and large-scale projects: DC models with 6 and 12 channels, AC models with 4 and 8 channels.

Since the devices are powered directly from the KNX bus, no external power supply is needed. Their compact design saves space in panels and makes installation extremely easy.

Each input channel can be individually configured via ETS software. Input functions include Value Sending, Dimmer, and Blind/Shutter Control. Maintained or momentary type, normally open (NO) or normally closed (NC) contacts can be connected. Additionally, different data types can be sent depending on short or long activation of the contacts.

 

Product specifications

  • Available in DC (6 & 12 channels) and AC (4 & 8 channels) versions
  • Each channel configurable as an independent digital input
  • Supported functions: Send Value, Dimmer, Shutter/Blind, Counter
  • Compatible with NO/NC, momentary or maintained contact types
  • Optional contact scanning on startup or reset
  • Wide data type compatibility for system integration
  • Powered directly from the KNX bus — no external PSU required
  • Compact panel design for easy installation
  • Fully configurable via ETS software

Product Variants

4 Channel Digital Input Device AC
4 Channel Digital Input Device AC

4 Channel

4-220 VDC/VAC Input

6-Channel Digital Input Device
6-Channel Digital Input Device

6-Channel

Dry Contact

8-Channel Digital Input Device AC
8-Channel Digital Input Device AC

8 Channel

4-220 VDC/VAC Input

12-Channel Digital Input Device
12-Channel Digital Input Device

12-Channel

Dry Contact

Downloads

History Version Download
Database
OPT-DI04-121 30.04.2025 1.0 Download
OPT-DI06-111 30.04.2025 1.0 Download
OPT-DI08-121 30.04.2025 1.0 Download
OPT-DI12-111 30.04.2025 1.0 Download
OPT-DIxx-111 30.04.2025 1.0 Download
OPT-DIxx-121 30.04.2025 1.0 Download
Datasheet
OPT-DIxx-1y1 Datasheet 30.04.2025 1.0 Download
CE Certificate
OPT-DIxx-1y1 CE Certificate 30.04.2025 1.0 Download
KNX Certificate
OPT-DI04-121 KNX Certificate 30.04.2025 1.0 Download
OPT-DI06-111 KNX Certificate 30.04.2025 1.0 Download
OPT-DI08-121 KNX Certificate 30.04.2025 1.0 Download
OPT-DI12-111 KNX Certificate 30.04.2025 1.0 Download
RoHS Certificate
OPT-DIxx-1y1 RoHS Certificate 30.04.2025 1.0 Download
EAC Documents
OPT-DIxx-1y1 EAC Certificate 30.04.2025 1.0 Download
User Manual
OPT-DIxx-1y1 Product Manual_EN 30.04.2025 1.0 Download
OPT-DIxx-1y1 Product Manual_TR 30.04.2025 1.0 Download
Pictures
OPT-DIxx-1y1 - - Download
DWG
OPT-DI4-121 .DWG 9.07.2025 1.0 Download
OPT-DI6-111 .DWG 9.07.2025 1.0 Download
OPT-DI8-121 .DWG 9.07.2025 1.0 Download
OPT-DI12-111 .DWG 9.07.2025 1.0 Download