Decabit

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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+):

Decabit 011.png

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 .

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