FREMGANGSMAATE TIL AA INNLEMME EN DATASTROEM I LYSLEDER-OVERFOERINGSSTREKNINGER.

摘要

1. A method of integrating a binary clock-pulse-driven or non-clock-pulse-driven data flow (B) of low bit rate (e.g. a service conductor data flow), which preferably serves for the transmission of data commands and control commands and measured values, into a main data flow (H) of high bit rate with two radiation power levels, which is conducted via a light waveguide transmission link without metallic auxiliary wires, where the data flow (D) of low bit rate is combined with the main data flow (H) in a drive electronic unit (5) at the transmitting end to form a transmission data flow (U) with three radiation power levels, where at the receiving end a decision device - which responds to the first two levels - for the main data flow (H) and a second decision device - which responds only to the third level - for the data flow (D) having the low bit rate are driven in parallel, characterised in that the combination of main data flow (H) and low rate data flow (D) is carried out in the drive electronic unit (5) for the transmitter (1) by changing the supply voltage of the drive electronic unit (5) in the timing of the low bit rate data flow (D) and that here the main data flow does not contain long zero sequences.