Performance assessment of digital subscriber loop transmission systems

Author

Cox, S.A. ; Hill, C.D. ; Titus, C.

Author_Institution

Local Network Exploitation Section, British Telecom, Ipswich, UK

fYear

1989

fDate

32849

Firstpage

42491

Lastpage

42495

Abstract

To meet the need for system characterisation the Local Network Test Facility has been set up at British Telecom Research Laboratories. This facility contains samples of a wide range of the cable types and installation practices used in the BTUK network. These cables, signal generation and measurement equipment and transmission performance testers are interconnected under computer control to establish a flexible automated test environment with which to simulate the whole range of practical network conditions in a controlled laboratory environment. Switch matrices are used to reconfigure the measurement equipment between calibration, self-testing and measurement modes of operation. Relay units are used to control cable lengths and to configure alternative loop constitutions

Keywords

automatic test equipment; cable testing; computerised control; digital communication systems; subscriber loops; telecommunication cables; telecommunication networks; telecommunications computing; British Telecom Research Laboratories; Local Network Test Facility; UK network; automated test environment; cables; calibration; computer control; digital subscriber loop transmission systems; measurement equipment; relay units; self-testing; signal generation equipment; switch matrices; telecommunication networks; transmission performance testers;

fLanguage

English

Publisher

iet

Conference_Titel

New Techniques in Providing Customer Services with Copper, IEE Colloquium on

Conference_Location

London

Type

conf

Filename

199154