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The I/O modules of the MIX series were specially developed to expand the I/O capacity of any DDC controller or automation server, as long as they are capable of MODBUS or BACnet communication. and for cost efficiency, the MIX modules have the I/O channels most often used in building automation . (UI, DI, AO, DO on one module).

IP version modules can also be used as transparent MODBUS TCP/MODBUS RTU or ASCII gateways, and also contain 2 ethernet ports, thanks to which the device works as a switch .


As the modules support open protocols, they can be easily applied in both new and existing installations. Addressing with rotary switches simplifies and speeds up commissioning.

The built-in USB port allows you to set up the products without using an additional power supply. 


Main features:

  • 2+2 different types

  • Each digital input can also be used as a high-speed counter (up to 100Hz)

  • The universal inputs have a 16-bit resolution, which increases the accuracy of the measurement

  • Wide range of temperature sensor element support (NTC, PT1000, Ni 1000, etc..)

  • Automatic input signal recognition for universal inputs

  • Digital outputs 230 V AC max. 3 A enabling direct control without additional auxiliary relays

  • Analog output with a maximum 20 mA load, enabling control of 12VDC relays or solid-state relays with PWM function as well

  • LED feedback on the status of inputs and outputs

  • Supported open communication standards: BACnet or Modbus

  • Built-in Modbus TCP/IP/ RS485 gateway (only for the IP version)

  • 2x Fast Ethernet ports (only for the IP version)

  • Simple and fast addressing from 1 to 99



Universal Inputs (UI)
Each input is also suitable for 16-bit resolution by supporting the following types of sensors:

  • Temperature input supports the following types of sensor elements: 10K3A1, 10K4A1, Carel 10K, 20K6A1, 2.2K3A1, 3K3A1, 30K6A1, SIE1, TAC1, SAT1, Pt1000, Ni1000

For Pt1000 and Ni1000 inputs, use only 16-bit resolution!

  • Voltage input 0-10 V DC: input resistance 100 kΩ accuracy ±0.1%, measurement resolution 3 mV 12-bit resolution_cc781905-5cde-3194-cf583-bb5b for and 1 mV for 16-bit resolution

  • Current input 0-20 mA (external 200 Ω resistor required)

  • Resistance input 0-1000 kΩ: measurement resolution at 20 kΩ load 20 Ω @ 12-bit resolution and 1 Ω @ 16-bit resolution

  • Voltage-free input

Digital inputs (DI)

  • Voltage-free inputs

  • Fast counter inputs (up to 100 Hz), counter register stored in EEPROM

Analog outputs (AO)

All outputs with 12-bit ADC, thanks to 10 mV resolution and accuracy less than ±0.5%.

The following output modes are supported:

  • Output 0-10 V DC maximum load 20 mA

  • PWM: 0.01Hz, 0.1Hz, 1Hz, 10Hz, 100Hz

Digital outputs (DO)

  • Relay output (NO) max. 3 A, 230 V AC/30 V DC


  • ARM Cortex-M3


  • RS485 interface half duplex

  • 2x Fast Ethernet port - only for IP version

  • Up to 99 devices on the RS485 bus

  • Protocols: Modbus or BACnet

  • Baud rate: from 2400 to 115200 bps

Supply voltage

  • 24 V AC/DC

Device housing

  • Dimensions (WxDxD) MIX18: 88x110x62 mm

  • Dimensions (WxDxD) MIX38 : 160x110x62 mm

  • Material plastic, self-extinguishing (PC/ABS)

  • DIN rail mountable (according to DIN EN 50022 standard)

  • Cooling: internal air circulation

Environmental parameters

  • Operating temperature: -10°C to 50°C

  • Storage temperature: -40°C to 85°C

  • Relative humidity: from 5% to 95%, non-condensing

  • IP protection: IP40 - for indoor use


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