Mark and space
id:
mark-and-space-161-3999090
title:
Mark and space
text:
Mark and space are terms used in telecommunications to describe two different signal states of a communications signal, generally at the physical layer of a communications system. The terms derive from the early days of the electric telegraph system, where the marking state would cause a mark to be output on paper, and the spacing state would create no mark. The terms would continue to be used in systems such as RS-232, with similar conventions, that "mark" would be encoded by a negative voltage
brand slug:
wiki
category slug:
encyclopedia
description:
States of a communications signal
original url:
https://en.wikipedia.org/wiki/Mark_and_space
date created:
2020-07-14T12:20:48Z
date modified:
2024-08-27T03:28:28Z
main entity:
{"identifier":"Q97349450","url":"https://www.wikidata.org/entity/Q97349450"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/b/b0/Rs232_oscilloscope_trace.svg","width":722,"height":484}
fields total:
13
integrity:
16