Patent ID: 8774015
Filing Date: 2014-07-08
Classification: G06F,H04L,H04M

Abstract:
1. A method comprising: electrically coupling first and second nodes of a device to a port of a digital subscriber line access multiplexer and to a first end of a communication circuit, the communication circuit to facilitate electrical coupling of the port of the digital subscriber line access multiplexer to a central office switch at a second end of the communication circuit; and electrically coupling a signature circuit between the first and second nodes to generate a signature signal in response to a test signal injected onto the communication circuit at a second end of the communication circuit, the signature signal having a magnitude substantially proportional to the test signal, wherein first and second conductors of the communication circuit are electrically coupled to respective ones of the first and second nodes, and wherein third and fourth conductors of the port of the digital subscriber line access multiplexer are electrically coupled to respective ones of the first and second nodes.