The DALI-2 standard is codified as IEC 62386, split into several parts: 62386-101 (general requirements / system), 62386-102 (control gear), 62386-103 (control devices), 62386-2xx (lamps and device types) and 62386-3xx (input devices).
True
IEC 62386 is organised in layers: Part 101 defines the overall system requirements, Part 102 covers the general behaviour of control gear (the ballasts and LED drivers), and Part 103 specifies the control devices such as application controllers. The 2xx series defines device types for control gear, including DT1 for emergency lighting, DT6 for LED modules and DT8 for colour control, while the 3xx series covers input device types such as DT301 push buttons and DT303 occupancy / light sensors. This is the official reference document; the full set is published by IEC and is a paid acquisition (around 600 EUR for the complete bundle).
When a datasheet quotes only "DALI-2 compliant" without naming a part and device type, ask for the certified Device Type list; that is what determines which features (colour, emergency, sensors) you can actually use.
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Related questions
- DALI-2 (IEC 62386 Edition 2, 2014+) is the major evolution of DALI v1, adding native support for input devices (sensors, push-buttons) directly on the DALI bus itself, together with a product certification programme administered by the DALI Alliance (DiiA).1. Architecture · DALI vs DALI-2
- The DALI bus uses a polarity-free twisted pair (no + / - orientation), with Manchester coding at 1 200 baud over a nominal 22.5 V DC supply, and is allowed to share the same multi-core cable as the 230 V mains feeding the luminaires.1. Architecture · Physikalische Schicht
- Self-contained emergency luminaires (DT1) under DALI-2 support standardised commands for the monthly function tests and annual duration tests required by EN 50172, and these tests can be automated from a central DALI-2 controller.2. Devices · Typ 1 Notbeleuchtung
- DALI-2 supports several application controllers active on the same bus (multi-master), with an arbitration mechanism that prevents conflicts when two controllers try to command the same control gear at the same time.4. Application Controllers · Multi-Master
- DALI bus power supplies are typically available at 100, 120, 150 or 250 mA depending on the vendor (ABB BCO/S, Tridonic DALI-PS, Lunatone PS5), and should be sized for the cumulative current of control gear plus input devices, with a 30 percent margin.7. Best practices · Bus-Netzteil