DALI Pushbutton Coupler

GTIN: 4710901730512
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L-DALI-BM2:DALI Pushbutton Coupler

The LDALI-BM2 pushbutton coupler integrates customary light pushbuttons and switches into a DALI channel. With the CEA-709/DALI or BACnet/DALI controllers, a compact control module with 4 free programmable switching inputs is available. When the pushbutton is pressed, DALI commands are sent to a DALI group within the DALI channel or even across DALI bus limits to the corresponding building network (via L-DALI controller)2
Each input receives its own functions independent of the switching behaviour (short or long push of a button, toggle, button, or switch mode). The following functions are available: Dim up, dim down, Off, On with last dimming value, Scene recall: 1–15, Dim to a specified value in %, Color temperature warmer/colder, Active auto mode.
In the mode toggle, the function is carried out depending on the lighting status (toggle switch).
The module LDALI-BM1 is directly connected to a DALI channel and also supplied with energy by that channel.


  • Dimensions (mm) 28 x 14.2 x 41.2 (L x W x H)
  • Installation flush-mounted installation can be directly installed behind the pushbutton
  • Power supply DALI-Bus, typ. 3.1 mA at a DALI power supply of 16 V DC
  • Operating conditions 0 °C to 50 °C, 10 – 90 % RH, non condensing, degree of protection: IP20
  • Interfaces:
    1 x DALI, protected against overvoltages (power supply) and polarized (bipolar)
    4 x pushbutton inputs with a joint connection, not protected against overvoltages, pushbuttons have to be installed potential free, in case of several modules the joint port (COM) should not be connected.
  • For use with
    LDALI‑3E102-U, LDALI‑3E104-U, LDALI‑3E101‑U, LDALI‑ME204-U, LDALI‑ME201‑U
  • Resource limits
    Number of LDALI-BM2 64 per DALI channel, with sufficient dimensioned DALI bus power supply
    Connection wires profile 0.5 – 1.5 mm² [AWG 20 – 16]
    Wire stripping length 8.5 – 9.5 mm [0.32 – 0.36 in]
    Line lenght to a pushbutton < 50 cm


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