Patent · US Expired

Synchronous transmission system with fault location function and monitoring device therefor

US6545980B1 · kind B1 · utility

5Cited by

7References

7Claims

0Family size

Assignee

ALCATEL · FR

Inventors

Geoffrey Dive · Aspach, DE
Werner Beisel · Ludwigsburg, DE

Key dates

Filing date	Dec 15, 1998
Grant date	Apr 8, 2003
Priority date	—
Expiry date	Dec 15, 2018

Classification

Technology area (CPC H)Electricity
CPC primaryH04J2203/0057
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A synchronous transmission system is disclosed in which the transmission paths (leased lines) extend over several individual transmission systems (Sx). Monitoring devices (NIM) with access to at least one byte of the control data area are provided in synchronous transmission systems to write data into or read data out of the control data area. The monitoring devices (NIM) may thus be controlled and monitored by a signal source (S1).

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