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444 Mini Input Unit


 DIGIDIM Mini Input Unit (444)

The Mini Input Unit is a DALI-compatible interface, designed to allow customer specified switches, sensors, time clocks or other on/off control devices to be incorporated into a DIGIDIM lighting control system.

The Mini Input Unit is a small, prewired, encapsulated printed circuit board and is suitable for inclusion into all standard size back boxes together with a suitable mains-rated switch

Mini Input Unit

A Mini Input Unit used with a four-gang mains switch in a single-gang back box.




 Key Features

  • Preconfigured with touch dimmer inputs for two groups.
  • Fits into all standard size back boxes and architrave style back boxes.
  • Touch dimming with a momentary push switch.
  • Can be used with momentary or latching switches.
  • Fully programmable using DIGIDIM Toolbox software.



Technical Data



4 inputs (active low)COM Input Ground

Overload protection:

± 7 V

Short-circuit current:

0.5 mA maximum

Debounce period:

50 ms

Voltage-free switched inputs:

5 V nominal with switch open, must be less than 0.3 V with switch closed.


No isolation from DALI network:switches must provide user protection.

Cable requirements


DALI Ribbon cable terminated with 1.2 mm ferrules.

Cable length

170 mmCaution: Do not increase the length of the wires. This can cause interference problems.


DALI supply output:

None (Use external DALI power supply.)

DALI consumption:

10 mA

Mechanical data


Encapsulated printed circuit board


10 g

IP code:



For installation in a suitably enclosed location only.

Operating conditions

Ambient temperature:

0 °C to +40 °C

Relative humidity:

Max. 90 %, noncondensing

Storage temperature:

−10 °C to +70 °C

Conformity and standards

EMC emission:

EN 55015

EMC immunity:

EN 61547


EN 61347-2-11


Complies with WEEE and RoHS directives.


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