Open System Protocol (OSP) overview

For dynamic lighting applications and beyond.  Is open for everybody (license free) and a full documentation gives full control. 

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Open System Protocol (OSP)

Open System Protocol (OSP) was developed by ams OSRAM to enable dynamic lighting applications and more. 

OSP is open for everybody and free of license. It is based on a master-slave architecture, allowing to control >1,000 devices individually in a chain. OSP is split into a base protocol, covering the lower 3 layers of ISO/OSI, and a device specific application layer.  
 

Ein Diagramm zeigt den Open System Protocol (OSP)-Stack und beschreibt die Schichten für Anwendung, Netzwerk, Datenverbindung und physische Kommunikation.
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Enable dynamic lighting applications 

The flexibility of OSP allows the implementation of Dynamic Lighting Applications for decoration, warnings, and communication, or even for the integration of interactive functions like in Smart Surfaces by the integration of sensors and actuators. 

OSP supports dynamic lighting applications with following key features: 

  • Address range: 1,024  
  • Net data: up to 64 bit per message frame 
  • Data transfer rate: 2.4 Mbit/s 
  • Self-diagnosis, self-addressing, further network layer features 


With these data, a master controller can update more than 200 devices with 3 colors (Red/Green/Blue) in 16 bit depth in less than 10 ms. 

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Enable design flexibility for Smart Surfaces

OSP enables advanced concepts for more sophisticated designs for smart surface and dynamic lighting applications, by expanding the design freedom.

OSP allows:

  • Network configurations like daisy chains, loopbacks and circles, and parallel branching  (currently up to 8 branches supported by stand-alone intelligent driver AS1163)
  • Integration in a 10BaseT1S zone architecture via gateway
  • Integration of intelligent RGB (e.g. RGBi OSIRE® E3731i), white and monochrome LEDs in the same OSP network via stand-alone intelligent driver AS1163
  • Extension of network to actuators and sensors via I2C 
  • Further extensions possible 
  • Multicasting, Broadcasting
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Downloads

OSP base documentation

Download

OSP white paper

Download

OSP ecosystem

More information

OSP News

AS1163 SAID intelligent LED driver 

The new AS1163 SAID intelligent LED driver provides a connection for any LED to an OSP automotive interior or exterior lighting network.

Ein Autoinnenarmaturenbrett mit beleuchteten LED-Leuchten und digitalen Anzeigen.

OSIRE™ E3731i intelligent RGB LED

ams OSRAM opens new era of dynamic interior automotive lighting with launch of intelligent RGB LED.

Ein weißes elektronisches Bauteil mit mehreren farbigen Elementen auf seiner Oberfläche.

ams OSRAM and DOMINANT Opto Technologies to enable smart automotive ambient lighting with intelligent RGB LEDs leveraging Open System Protocol

A car's Ein Autoinnenarmaturenbrett mit beleuchteten LED-Leuchten und digitalen Anzeigen.dashboard with illuminated LED lights and digital displays.

Car makers to use intelligent ambient lighting to create new functions - and a new feeling - inside the cabin

The increasing sophistication of a vehicle’s technology is prompting manufacturers to rethink the form and function of the cabin. 

Ein Autoinnenraum mit intelligenter Ambientebeleuchtung in verschiedenen Farben (grün, blau und rot).