The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 1986
Filed:
Sep. 19, 1985
Franklin Hargrave, Newtown, CT (US);
Edward J Linke, Jr, Southbury, CT (US);
Francisco A Middleton, Newtown, CT (US);
ITT Corporation, New York, NY (US);
Abstract
A system for accessing telephone lines at a main distribution frame includes an access block positioned between a vertical input terminal block and protector modules of the distribution frame. The access block has a set of terminals which make direct connection between the corresponding terminals of the input and protector modules and, in addition, includes a printed circuit with individual conductors coupled to respective ones of the access block terminals. Multiplexing circuitry connects with the printed circuit for sequential coupling of messages among the various telephone lines passing through the access block. Additional multiplexing circuitry is located on the distribution frame at a site remote from the input blocks and is coupled to the multiplexers associated with each of the input blocks to scan through the output signals of each of the multiplexers. The scanning operation also includes the operation of providing control and command signals to the multiplexers for sequencing through all of the telephone lines.