Number One Crossbar Switching System
id:
number-one-crossbar-switching-system-255-3149838
title:
Number One Crossbar Switching System
text:
The Number One Crossbar Switching System (1XB), was the primary technology for urban telephone exchanges served by the Bell System in the mid-20th century. Its switch fabric used the electromechanical crossbar switch to implement the topology of the panel switching system of the 1920s. The first No. 1 Crossbar was installed in the PResident-2 central office at Troy Avenue in Brooklyn, New York which became operational in February 1938.
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Number_One_Crossbar_Switching_System
date created:
date modified:
2021-11-28T00:00:33Z
main entity:
{"identifier":"Q7069535","url":"https://www.wikidata.org/entity/Q7069535"}
image:
fields total:
13
integrity:
13