Decabit
As Decabit is referred to in the ripple control in the remote control of electricity consumers by utility companies a datagram to be transmitted with the aid of control signals over the power lines. It was developed by the Zellweger company (now part of Ascom ) in the late 1960s .
Decabit is a so-called pulse spacing method. In contrast to the pulse interval method, which provides pauses between the pulses , here all control pulses are lined up seamlessly.
Decabit consists of a start pulse (SI) and 10 control pulses, each 600 ms long. An entire broadcast is thus 6.6 seconds long. A decabit command always consists of 5 pulses and 5 pauses, i.e. a 5-of-10 selection. The switch-off command has the inverted pulse assignment of the switch-on command.
Example of a decabit (code 11+):
A maximum of 126 double commands are possible.
literature
- Ernst-Robert Paessler: Ripple control technology . Ed .: Siemens Aktiengesellschaft. Publicis MCD Verlag, 1994, ISBN 3-89578-004-9 .
Web links
- Ripple control technology Decabit-Impusdraster ( Memento from March 12, 2016 in the Internet Archive )
- Jochen Fritz: Ripple control technology, ripple control, Ripple control, Télécommande centralisée, Telecomando centralizzato. In: rundsteuerung.de. Retrieved May 2, 2016 .
- CV2013: Toon frequency. In: toonfrequent.nl. Retrieved May 2, 2016 .