Osram QUICKTRONIC INTELLIGENT DIM CFL Uživatelský manuál stáhnout pdf (Strana 23)

2.6 DALI data transfer

With DALI, data telegrams are produced by short-circuiting and re-

leasing the line in order to generate the corresponding "low" or "high"

logic states. This may be caused by either the ECG or by the control-

ler. In the event of a short-circuit the current is limited by the interface

supply to 250 mA. In the idle state (no data transfer) approx. 16 V

on the ECG. The following figures illustrate data transfer via DALI:

Undefined

"Low Level"

receiver range

22.5 V max.

9.5 V min.

20.5 V max.

11.5 V min.

16 V typ.

0 V typ.

Receiver unitSender unit

6.5 V max.

-6.5 V min.

4.5 V max.

-4.5 V min.

8 V typ.

Undefined

“High Level"

sender range

“Low Level"

sender range

“High Level"

receiver range

Figure 11: Voltage level on the DALI interface

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 91 92

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Osram QUICKTRONIC INTELLIGENT DIM CFL Uživatelský manuál Strana 23