What is the Difference between DALI Device Type 8 and Type 6 ?
1. DALI HistoryDigital Addressable Lighting Interface (DALI) is a protocol for digital lighting control that enables the easy installation of robust, scalable and flexible lighting networks. Today DALI is the most common used digital protocol for light. And DALI protocol is maintained by Digital Illumination Interface Alliance (DiiA), a global consortium of lighting companies that aims to grow the market for lighting-control solutions based on DALI technology. DALI was originally developed to allow digital control, configuration and querying of fluorescent ballasts, replacing the simple, one-way, broadcast-like application of 0/1-10V dimming. With DALI, the broadcast option is also available; in addition, with simple configuration, each DALI device can be assigned a separate address, allowing digital control of individual devices. DALI features with a two-way communication with the luminaire. You can determine whether the tubes are working correctly, and at what lighting intensity level they are. The DALI protocol has been expanded several times since the beginning and each new device has been given a new number (Device Type X = DTX). Latest important updates are Emergency light (DT1), LED (DT6) and RGB/Tunable white control (DT8).The figure 1 show the components of IEC 62386 standard. The components of IEC 62386 standard
2. The Difference between DALI Type 8 and Type 6For DT6 driver, single address single channel. This type driver use one address to dim the color temperature and another address to dim the intensity, supporting DALI 102, DALI 207 protocol. As for DT8 drivers, single address multipath channels. Those drivers use one address to achieve tunable white application. It's compatible with DT6 and support DALI 209 protocol. Fig.2 DALI DT6 Wire Connecting Fig.3 DALI DT8 Wire Connecting The details about supporting protocol between Type 8 and Type 6 are shown in table below.
|LED Driver Type||DALI Type 6||DALI Type 8|
|Color Temperature Control||×||√|
|Occupied Address Number||Each channels occupies 1 address||Dual channels share 1 address|