M-DIM-1p: Single output dimmer module

  • Document number: PO-015-EN
  • Version: 1.1.0
  • Date of publication: July 7, 2022

The image above is for illustration purpose only. The actual module may vary from the one presented here.

Technical data

Supply voltage
11 — 16V DC
Current consumption
Controlled outputs
Maximum load of a single output

Technical data cont.

Minimum dimmer voltage
48V AC
Maximum dimmer voltage
250V AC
Number of ground detecting inputs
up to 6 sensors




-40 — 50°C
≤95%RH, non-condensing

General features

Module M-DIM-1p is a component of the Ampio system. Required voltage to power the module is 11 — 16V DC. The module is controlled via CAN bus.

The module has one dimmable output, two ground detecting inputs and a 1-Wire interface.

Dimmable outputs

With the use of the module, it is possible to control the light intensity of incandescent bulbs, halogens, dimmable LED bulbs and dimmable CFL fluorescent lamps. It is also possible to control light sources powered through a transformer.

Light sources powered through a transformer

In the case of controlling light sources powered through a transformer, the device must be configured to disconnect the power supply when detecting a trailing edge.

The maximum power of a receiver connected to the dimmable output is 300W. Input voltage ranging from 48V AC to 250V AC can be smoothly regulated.

Dimmable outputs have short-circuit, overload and thermal protection. The module facilitates power measurement.

Ground detecting inputs

The module has inputs that go into the active state when they are shorted to ground. They can be used in the case of any devices with potential-free contact outputs, e.g. wall switches, reed switches, buttons, switches, etc. They can also be used for integration with devices with potential-free relay outputs or optocoupler outputs with a collector voltage greater than 12V.

Temperature sensors

The module is equipped with a 1-Wire interface connector that allows to connect up to 6 digital Dallas DS18B20 temperature sensors. The temperature measurement result is available for all devices operating within the building automation bus. It may turn out to be particularly useful for purposes related to temperature regulation, or to present the measurement result on touch panels and in a mobile application.

The total length of the 1-Wire bus cable to which the temperature sensors are connected cannot exceed 15m.

Typical application

  • Switching on the lighting;
  • smooth lighting control;
  • smooth power control of AC devices of a resistive nature and a maximum power not exceeding 300W.


The dimensions of the module enable its installation in a standard junction box. In order to start the module, it must be connected to the CAN bus. The bus of the Ampio system consists of four wires - two for power and two for communication between the modules.

In addition to the CAN bus connector, the device has a mains voltage connector and a dimmable output, as well as a connector for ground detecting inputs and a 1-Wire interface.

Device status LEDs

On the front of the module there are signalling LED indicators. The redl LED with the label CAN indicates the status of communication on the CAN bus:

  • one regular flash every 1 sec. – CAN bus communication is working properly,
  • two regular flashes every 1 sec. – the module is not receiving information from other modules,
  • three regular flashes every 1 sec. – the module cannot send information to the CAN bus;


The module is programmed with a special programmer, available for authorised technicians, and the Ampio Smart Home CAN configurator software. It allows you to modify the parameters of the module and define its behaviour in response to signals directly available to the module as well as general information coming from all devices present in the home automation bus.

Module dimensions

Dimensions expressed in millimeters.

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Connection diagram

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