The SMART-TxRx symmetrical system frees your pixel LED installations from distance constraints, transforming the standard 5 meters into 50 meters per floor, extendable at will.

Architectural lighting, retail, hospitality, commercial: as soon as the installation of SMART pixel LED ribbons extends over long distances or requires the controller to be offset, the inherent limitation of the SPI signal (less than 5 meters) becomes a real headache. The SMART-TxRx definitively solves this equation by symmetrizing the signal to reach 50 meters between each transmitter/receiver pair. By daisy-chaining several kits, no distance remains unreachable, allowing installations to be designed without compromising on layout.

Transparent, automatic symmetrization.
The system works in pairs: the transmitter (Tx) picks up the SPI signal (TTL) from the controller or a previous ribbon, automatically converts it into a symmetrical signal capable of traversing 50 meters of cable without degradation, then the receiver (Rx) reconverts it into its own SPI signal to power the rest of the installation. This symmetrization eliminates electromagnetic interference and preserves the integrity of the signal pixel by pixel, guaranteeing smooth animation even over very long distances. No adjustment is required: conversion takes place automatically on power-up (5-24 V DC).

Freedom of controller location.
In addition to ribbon-to ribbon extension, the SMART-TxRx allows the controller to be physically remote from the lighting installation. No need to install the control console in the immediate vicinity of the ribbons: place it in a technical room, false ceiling or any other convenient location, and the transmitter will send the signal over 50 meters to the first receiver, which will transmit the data to the rest of the installation. This flexibility drastically simplifies complex projects where access to the ribbons is difficult or aesthetics dictate masking the control electronics.

Compact design for unobtrusive integration.
At just 31 × 10 × 5 mm and 2 grams, each module is easily concealed in aluminum profiles, behind cornices or within luminaires. Large soldering points make connection easy, even for technicians with little experience of micro-soldering. Three tracks on the SPI side (data, power, ground), two tracks on the symmetrical side: installation remains intuitive despite the technical nature of the system. The extended temperature range (-20°C to +55°C) enables use in demanding environments, from the cold of refrigerated display cases to the heat of certain technical areas.

Professional kit for multiple installations.
This kit of 5 transmitters and 5 receivers is ideal for installers managing multiple sites or a single installation requiring several extensions. Each pair remains independent, allowing modules to be distributed according to the topology of your project: a large linear installation with several symmetrical stages, or five separate installations each benefiting from a 50-meter extension. This versatility makes it an indispensable tool for any SMART range that needs to go beyond the 5-meter regulation.

Technical specifications :

• Electrical data
  • Input voltage: 5~24 V DC
  • Input signal: Tx: SPI (TTL) / Rx: Balanced signal
  • Output signal: Tx: Balanced signal / Rx: SPI (TTL)
  • Input connection (Tx): 3 solder tracks
  • Output connection (Tx): 2 solder tracks
  • Input connection (Rx): 2 solder tracks
  • Output connection (Rx): 3 solder tracks
  • Kit of 5 Tx / 5 Rx
• Operating environment
  • Ambient temperature: -20 °C to +55 °C
  • IP rating: 20
• Physical characteristics
  • Dimensions: 31 x 10 x 5 mm
  • Weight: 2 g