OSRAM OPTOTRONIC Constant current LED power supplies with 3DIM - Manual (Page 6)

DESCRIPTION
1.1. DALI ® – digital addressable lighting interface
DALI ® is an international standard communication proto col
for electronic control gears. It is defi ned by the standard
IEC 62386. In street lighting applications, DALI
® is used for
bi-directional communication between the ECG and tele-
management systems, which allow for fully customized
lighting and monitoring of individual light points.
1.2. StepDIM – midnight step-down/
half-night switch
StepDIM is used in installations where a dedicated control
line (switched phase) is available in addition to the power
line. The switched phase is connected to the SD terminal
of the 3DIM ECG and an external actuator is used to start
and end dimming. The dimming parameters (e.g. dim lev-
els and fade times) are preset by OSRAM and can be
modifi ed via the 3DIM Tool.
Figure 3: DALI ® operation – light output over time (example).
Figure 5: StepDIM operation (one dim level) – light output over time
(example).
Figure 4: DALI ® installation.
Figure 6: Installation with external control line for StepDIM operation.
6
Time
Time
Control
center
IP connection
(e.g. GPRS)
DALI ® control line
Power line
Wireless
Control line
DALI ®
controller
Lumen
Lumen