Open System Protocol to Become ISO Standard

Lighting Technology Open System Protocol to Become ISO Standard

2026-02-18 From Stefanie Eckardt | Translated by AI 1 min Reading Time

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The Open System Protocol from ams Osram for dynamic lighting applications and intelligent vehicle networks is being established as an international standard. The ISO TC 22 Technical Committee has started work on standardizing the solution as a new work item within ISO/TC22/SC31/WG3.

The Open System Protocol from ams Osram for dynamic lighting applications and intelligent vehicle networks is to be implemented as an ISO standard in the future.(Image: ams Osram) — The Open System Protocol from ams Osram for dynamic lighting applications and intelligent vehicle networks is to be implemented as an ISO standard in the future.
(Image: ams Osram)

On the road to the software-defined vehicle (SDV), open and interoperable communication technologies such as the Open System Protocol (OSP) from ams Osram are playing an increasingly important role. With the OSP, the company is addressing a central challenge in vehicle electronics: the efficient networking and control of a growing number of intelligent end devices such as RGB LEDs, drivers, sensors and actuators on the periphery of the vehicle network.

First 10BASE-T1S-Based Implementations

OSP ensures that up to 1,000 intelligent nodes can be managed with a central control unit. In vehicle architectures, OSP acts as a "last mile network"—connecting lighting elements and other intelligent devices directly to higher-level vehicle backbones such as CAN or Ethernet. Initial practical implementations based on 10BASE-T1S show that OSP is suitable for zone- and domain-oriented E/E architectures.

The solution is already being used in series production. The company offers OSP-capable products, such as the intelligent RGB LED Osire E3731i and the Stand-Alone Intelligent Driver (SAID), which are integrated into vehicles. In addition, the first LED and IC manufacturers are also using the Open System Protocol. In addition, several microcontroller suppliers also offer their controllers or gateways with an OSP stack.

Open, License-Free Protocol

OSP was designed from the outset as an open, license-free protocol that is available free of charge. Only the basic protocol is standardized, which gives manufacturers the opportunity to implement new developments and unique selling points at the application level.

The OSP specification has been released to the public. The associated software is available free of charge on GitHub. With the transfer of OSP to the ISO, the formal standardization process now begins. The official project launch is planned for this month. (se)

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