Telecommunications network test system

Details Telecommunications network test system Telecommunications network test system

1990-07-05

1991-10-22

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

379 5, 371 205, H04J 116, G06F 1100, H04M 124

Patent

active

050602268

ABSTRACT:
A telecommunications line test system wherein a digital telecommunications network is electronically sectionalized via at least one master test unit in combination with at least one remotely addressable field loopback unit whereby the defective line section is isolated by progressively looping back test data as transmitted from a master test unit. Each field loopback unit, when properly addressed, will loopback to both the near side and the far side of the line so as to enable a given loopback unit to be reset (inactivated) from either side of the line.

REFERENCES:
patent: 4551830 (1985-11-01), Huffman
patent: 4584677 (1986-04-01), Kosaka
patent: 4686668 (1987-08-01), Koseki et al.
patent: 4704714 (1987-11-01), Tomizawa et al.
patent: 4766594 (1988-08-01), Ogawa et al.
patent: 4855993 (1989-08-01), Hamada et al.
patent: 4930119 (1990-05-01), Kobayashi et al.

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