.Mini 8I 2019-02-07T10:06:47+00:00



The module has  8xDI (digital inputs). DI can also be used as high-speed counter pulses up to 100 Hz writing to the EEPROM. The module is equipped with two of the most popular communication protocols: Modbus  ASCII / RTU and  BACnet MSTP , the choice of which is done using DIP switches.


Addressing the modules is done via rotary switches, which simplifies and speeds up the boot process.

The built-in mini USB interface for initial configuration of the device without power.


  • Interface RS485 half duplex
  • Up to 99 devices on the bus
  • Protocols: Modbus or BACnet
  • Baud rate: 2400 to 115200 bps

8 x Digital Inputs (4DI)

  • Inputs potential-free (dry contact)
  • Fast pulse counter up to 100 Hz writing to the EEPROM


  • Dimension: 35x110x62 mm
  • Construction: plastic, self-extinguishing (PC/ABS)
  • DIN rail mounting (DIN EN 50022 norm)
  • Cooling: internal air circulation


  • Operating temperature: -10°C to 50°C
  • Storage temperature: -40°C to 85°C
  • Relative humidity: 5 to 95%, no condensation
  • Ingress Protection Rating: IP40 – for indoor installation


  • ARM Cortex-M3

Power supply

  • 24 C AC/DC

The datasheet for this product can be downloaded here in PDF format:

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Holler Box