EKM-050 Technical description basic smart 3


The module variant basic smart is a compact version for use in vehicles and machinery and wherever an access authorization is required.

The basic smart unit is the smallest of the Mobile Easykey family.

Upgrading this system with Wi-Fi, Bluetooth and Crash Sensor is not possible.

The basic smart unit can be administered comfortably with the mobile Easykey software.

Simply connect the PC, the lap top or Easy Point with the programming cable to the module.


Motherboard basic smart

Motherboard assemby

Circuit diagram basic smart 3

Terminal diagram for female connectors

Relay socket Version 1


Installation instructions

  1. Define installation point (if necessary make a bracket).

    Note: The antenna cable is only about 1 meter long.

  2. Install the module and secure it with at least 2 screws.

  3. Before connecting to the mains the maximum

    switching current must be measured.

    Note: Relay contacts may only be loaded with a maximum of 60 Watt.

  4. If the power is greater than 60 watts, an additional power relay must be used.

  5. Relay contacts to be connected in series with the load.

  6. For the power supply of the module insure that an 1 A slow fuse is fitted with the plus connection

    (see diagram, page 4).

  7. If a seat switch (SEAT) is used, the seat-contact bridge on the mother board must be wired up

    (depending on the polarity).

  8. If no seat switch (Seat) is used, the yellow cable must be wired to Negative (-).

    The seat-contact bridge (Seatkont ) is also to be wired to Negative (-).

  9. If Presence Detections is used, wire the seat-contact bridge (Seatkont) to Negativ (-).

  10. Install Antenna (Antenne) at the desired location.

  11. Install Programming connector (DATA) easily accessible.


The antenna collects the data from the transponder in the reading range up to about 30 mm and forwards it to the module.

There, they are evaluated. Only if permission is detected then the clearing relay switches the connected load.

When using the Event Tool the user is alerted about an incident (damage) by a flashing blue LED.

Technical Data


102 x 82 x 62 mm

Weight without connection cable

310 g


Light grey, protection class IP54
Industrial quality


with 4 screws possible
max. diameter of screw 4 mm

Measurements of antenna

round 25 x 30 mm
Drill diameter 20 mm

Measurements of programming socket

round 28 x 40 mm
Drill diameter 22 mm

Temperature range

-10 bis +65° C


maximum load 60 Watt

Lenght connection cable

Approx. 3 m

On and off switch

Via user transponder,
Display via antenna (LEDs)

Power supply

10 – 30 V

Electricity consumption

< 100 mA

Transponder response range

Approx. 0 – 30 mm

Programming of user data

Via (RS 232) serial interface
Via Easy Point (no initial set up!)

Programming cable

Lenght approx. 1,5 m
Type: Mobile Easykey

Data retention

battery backed (approx. 5 years battery life)



Trouble shooting

Measure power supply
Unscrew module and remove cover.
At power supply connection (plug) measure voltage output on brown and pink wire.
A minimum output of 12 V must be measured.

Check seat switch
At power supply connection (plug) measure voltage output on yellow wire.
The (pre-) selected potential should apply.

Check relay contact
At power supply connection (plug) measure voltage output on grey and white wire.
After turning the transponder on the potential is transferred

Domnick+Müller GmbH+Co. KG

Max-Planck-Straße 11

D-61381 Friedrichsdorf 

Domnick+Müller GmbH+Co. KG

Max-Planck-Straße 11

D-61381 Friedrichsdorf 

Mobile Easykey GmbH
Max-Planck-Straße 11
D-61381 Friedrichsdorf