George R Nemchek

US Patent:

46619712, Apr 28, 1987

Filed:

Dec 5, 1985

Appl. No.:

6/805313

Inventors:

George R. Nemchek - Norwood NJ

Assignee:

Bell Communications Research, Inc. - Livingston NJ

International Classification:

H04M 326

US Classification:

379 29

Abstract:

In a digital signal cross-connection system, the functions of the cross-connection of equipments and the access to those equipments for testing purposes are separated. The jacksets utilized for testing access are removed from the cross-connection bays and are considerably fewer in number than the terminations on the cross-connection bays. A concentrator switch is interposed between the jacksets and the cross-connection bays so that access is provided to the transmit and receive leads to the cross-connection bays only on an as needed basis, the concentrator switch also providing a control function for disconnecting the digital equipments from the cross-connection bays.