Patent · US Active

Method and device for checking the connection of a positive supply voltage to a subscriber access line comprising a plurality of wires

US8948347B2 · kind B2 · utility

1Cited by

10References

11Claims

0Family size

Assignee

Nokia Siemens Networks GmbH & Co. KG · DE

Inventors

Heike Diegel · Iffeldorf, DE
Rudolf Dollinger · Munich, DE
Roland Krimmer · Germering, DE
Bernhard Sieben · Schwanau, DE

Key dates

Filing date	Jun 14, 2006
Grant date	Feb 3, 2015
Priority date	—
Expiry date	Jul 29, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04M3/20
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

According to the invention, a user connection cable (TAL) that is to be associated with a user connection circuit (SLIC) and is used for connecting at least one user (TN) to at least one communication network is verified regarding switching on of a positive distribution voltage in the strands (a, b). The user connection circuit (SLIC) is initially switched to the silent interval mode and a test impedance (I) is switched between the strands (a, b) of the user connection cable (TAL), whereupon the current (i) flowing across the strands (a, b) and the voltage (u) to ground of a strand (b) are measured. Advantageously, the measurements are taken via measuring devices disposed on the user connection subassembly (SLMA).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.