DIP Switch Configuration
Page 10
DMXtoDALI quad User Guide
A bank of DIP switches is located under the top right cover. Normal operation is achieved by
setting all switches to the off position.
Switch
Function
Operation
1
Curve
Off
DALI dimmer curve
On
Linear dimmer curve
2
Buffering
Off
A sixteen deep buffer is used per circuit
On
Buffering disabled
3
Continuous Query
Off
Two queries run at startup
On
Queries run continuously every 2 minutes
4
Query Disable
Off
Query operation is defined by switch 3
On
Query operation is disabled
5
Activate
Off
All DT8 commands end with an ACTIVATE
On
ACTIVATE is not sent
6
n/a
Off
n/a
On
n/a
The majority of DMX devices operate using a
linear dimming curve with the level selected
by a decimal value between 0 and 255. DALI
works with a non-linear (exponential) curve.
As the graph shows, each method produces
a different output.
In its default mode of operation (Switch 1
= Off), DMXtoDALI employs a one-to-one
mapping between the DMX and DALI values,
resulting in the native (exponential) dimming
curve of the DALI fixture.
However, DMXtoDALI can also produce a
linear dimming curve (Switch 1 = On). It should
be noted that in this mode of operation, the
DMX value corresponds to the percentage
power level of the fixture. Therefore, any
command value above 100 will simply result
in 100% power level.
Curve (Switch 1)
0
DMX
DALI
0
255
100%
Device
Power
Control Value
Device Power (%)
100
0
100
255
DMX Value
0
Please refer to Table 12 for the dimming curve.
Switch 1 = Off
Switch 1 = On
