Multiplex communications – Diagnostic testing – Path check
Reexamination Certificate
2005-12-12
2010-02-02
Kumar, Pankaj (Department: 2467)
Multiplex communications
Diagnostic testing
Path check
C370S249000, C379S026010
Reexamination Certificate
active
07656811
ABSTRACT:
A test system detects proper connection wiring in a connection frame between a customer's lines and a DSL Access Multiplexer (DSLAM). A multi-loop tester at a central office generates a test signal on low frequency lines to a customer's connection in a connection frame. A signature circuit is electrically connected between the customer's connection in the connection frame for the low frequency lines and the DSLAM. The signature circuit responds to the test signal and generates a signature signal. The multi-loop tester senses the signature signal to verify that the DSLAM is properly connected to the customer's lines.
REFERENCES:
patent: 4042887 (1977-08-01), Mead et al.
patent: 4611320 (1986-09-01), Southard
patent: 5913036 (1999-06-01), Brownmiller et al.
patent: 6584148 (2003-06-01), Zitting et al.
patent: 6798866 (2004-09-01), Tennyson et al.
patent: 6885730 (2005-04-01), Bremer
patent: 7027405 (2006-04-01), Khadavi
patent: 7116637 (2006-10-01), Pines et al.
patent: 7502327 (2009-03-01), Burns et al.
patent: 7518847 (2009-04-01), Sharpe
patent: 2002/0021676 (2002-02-01), Richardson
patent: 2002/0064150 (2002-05-01), Pines et al.
AT&T Intellectual Property I L.P.
Duong Duc T
Hanley Flight & Zimmerman LLC
Kumar Pankaj
LandOfFree
Digital subscriber line access multiplexer wiring validation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital subscriber line access multiplexer wiring validation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital subscriber line access multiplexer wiring validation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4176691