868 MHz antennas and interfaces

Antenna extensions and interfaces to make 868 MHz range compatible with 433 MHz or to pass the 868 MHz frequency to Bus LIN, Wiegand or Clock&Data output



  • 868 MHz multi-protocol radio interface, to be connected to any access control unit in the market.
  • Allows for the GROUPS of the LDR system (LDR-Tx and LDR-TxH) to be identified
  • Communication: C4+, Clock&Data, Wiegand 26 and Wiegand 37.
  • Allows for the use of 868 MHz transmitters with any control panel operating with Wiegand or Clock&Data protocol.
  • Allows for single or multi-channel configuration.
  • Power supply: 12Vdc.
  • Standby/Op. consumption 14mA / 36mA.
  • Anti-passback input.
  • Built-in antenna.
  • IP54 (IP65 with gland).
  • Size: 125 x 80 x 35 mm.


  • With the APS (Approaching System) transmission system, the transmitter button can be pressed outside the receiver range. The transmitter will repeatedly send the signal while the user approaches his garage door until the door opens.

  • Allows for reception points to be multiplied and system range increased.
  • Use JCM 868/433 MHz transmitters with the 433 MHz JCM range or in any station operating with Wiegand or Clock & Data protocols.
  • Allows for the GROUPS of the FREE system (FREE T and FREE TH) to be identified.
  • High security rolling code system with more keying bits.
  • The installer can personalise the transmitter using the installer code.
  • They simplify the work of the installer and reduce technical interventions and wiring work to a minimum (only 3 wires).