Ground start
id:
ground-start-235-11872515
title:
Ground start
text:
In telephony, ground start is a method of signaling from a terminal of a subscriber local loop to a telephone exchange, where one side of a cable pair is temporarily grounded to request dial tone. Most middle 20th-century American payphones used coin-first ground start lines, with the starting ground connection provided by the coin itself, bridging a set of contacts as it passed through the coin chute.
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Ground_start
date created:
date modified:
2024-02-21T10:32:37Z
main entity:
{"identifier":"Q17019456","url":"https://www.wikidata.org/entity/Q17019456"}
image:
fields total:
13
integrity:
13