Title :
Upstream maintenance requests for the ISDN U-interface
Author_Institution :
ADTRAN Inc., Huntsville, AL, USA
Abstract :
A method for allowing upstream maintenance requests between intermediate elements in a distributed digital subscriber line (DSL) is demonstrated. A communication control algorithm embedded in software and driving the embedded operations channel (EOC) is developed that allows bidirectional EOC communications between intermediate units in a multipoint EOC configurations. The algorithm is compliant with both ANSI T1.601-1988 and Bellcore TR-TSY-000397. Through the implementation of this algorithm one can perform front panel tests from an intermediate transmission element in both transmission directions, thus easing trouble sectionalization and installation testing of a DSL
Keywords :
ISDN; computer interfaces; electronic equipment testing; maintenance engineering; subscriber loops; telecommunications computer control; ANSI T1.601-1988; Bellcore TR-TSY-000397; ISDN U-interface; communication control algorithm; distributed digital subscriber line; embedded operations channel; front panel tests; installation testing; intermediate elements; intermediate transmission element; software; upstream maintenance requests; Bidirectional control; Communication system control; DSL; Drives; ISDN; Maintenance; Protocols; Spine; Switches; Wire;
Conference_Titel :
Southeastcon '91., IEEE Proceedings of
Conference_Location :
Williamsburg, VA
Print_ISBN :
0-7803-0033-5
DOI :
10.1109/SECON.1991.147728
