PosiTouch DALI - Lighting Controller
User Manual
7.0 - 23 November 2020
Page 6 of 6
+617 3899 1267
Appendix B. DALI Networking Basics
DALI is very flexible in its network configuration, to the point that DALI control lines and mains voltage
supply lines can be wired together.
The DALI control line input to a ballast is polarity insensitive, meaning there is no + or -.
A DALI network can consist of up to 64 ballasts.
Wiring of the DALI network can be almost any fashion, be it a daisy chain, star or branch, as per the below
figure
Figure 2 DALI Network Topologies
Cable sizes should follow the guide given in the table below.
L e a d L e n g t h
M i n i m u m L e a d D i a m e t e r
Up to 100m
0.5mm
2
100
–
150m
0.75mm
2
150
–
300m
1.5mm
2
Appendix C. Wiring Diagram
DALI Power Supply
PosiTouch
DALI Driver
