.Mini 8U 2019-02-07T10:07:16+00:00



The module has  8xUI (Universal inputs). UI can work as one of the 5 types: temperature, voltage, current, resistance, digital. 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)

All universal inputs are equipped with 16-bit converters, which support the following types of inputs:

  • Temperature inputs work with the following types of sensors: 10K3A1, 10K4A1, Carel 10K 20K6A1, 2.2K3A1, 3K3A1, 30K6A1, SIE1, TAC1, SAT1, Pt1000, Ni1000 For Pt1000 and Ni1000 used only resolution 16bit
  • Input voltage 0-10 V DC input resistance of 100 kW ± 0.1%, resolution 3 mV @ 12bit and 16bit 1 mV @
  • 0-20 mA current inputs
  • Inputs resistive 0-1000 kohm: resolution at 20 kohm 20 Ω @ 12bit and 16bit 1 Ω @
  • Inputs potential-free (dry contact)


  • 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