Telect, Inc.

Paul D Johnson

Donald R Skinfill

Timothy L Hill

Douglas E Prussack

Duane B Kutsch

Glen M Larson

Lloyd W Lohf

A low frequency (1-3 Mbps) telecommunication network cross-connect panel 10 is described for cross-connecting eighty-four fiber multiplex circuit elements 12 and eighty-four digital loop carrier circuits 14. The panel 10 has a housing 16 for supporting twenty-one modules 30 in which each module 30 has an upper patch access section 34 and a lower cross-connection field section 36. The upper section 34 includes two sets of front access wire-wrap pins 50 and 56 for providing front patch access capability utilizing a female patch plug 130. The lower cross-connection section 36 includes two sets of cross-connect pins 62 and 68 providing eighty-four columns of eight pins each defining a cross-connect field. Each module 30 includes a printed circuit board 40 for physically electrically interconnecting the pins through electrical circuits 100, 102, 104, and 106 as illustrated in FIG. 5. The printed circuit board includes an electrical switch means 108 that is a make-before-break arrangement in which front access contact is made prior to interrupting the circuit 100, 102, 104 and 106.

Low frequency digital network cross-connect panel

A low frequency telecommunication digital network interface patch panel 10 is described having the capability of terminating and providing front access to one-hundred-sixty-eight low frequency network elements 12 and 14 that generate low frequency signals between 1 and 3 Mbps. The panel has a housing with twenty-one adjacent modules; each module being one inch in width and having an upper set of wire-wrap pins 38 and a lower set of wire-wrap pins 40 that are spaced at one-quarter inch on center from each other. The pins 38, 40 are arranged in upper columns and lower columns that are vertically aligned with each other. The pins 38, 40 extend forward from a printed circuit board 60 through front module members 62 to ends 54 and rearward through rear module member 64 to wire-wrap terminal ends 56. The ends 56 are adapted for permanent termination with twisted wire pairs of the network elements. The forward front ends 64 are adapted to receive a female access plug 120 having four wire-wrap pin cavities 126. The printed circuit board 60 has a switch means 78 for operatively interconnecting a column 40 with a corresponding lower set of four pins 44. The female patch plug 120 includes a projecting switch actuating member 134 that serves to interrupt the normally closed condition of the switch means 78 when the female patch plug 120 is inserted over a selected column of pins 40, 44.

Low frequency telecommunication digital network interface patch panel

A telecommunication fiber optic distribution apparatus 10 is illustrated in the drawings and includes a plurality of vertically spaced tray housings or shelves 18 that are mounted between vertical frame columns 16. Each of the tray housings slidably supports a plurality of optical fiber trays 20 that are movable linearly outward from a storage retracted position within the housing to an extended service position. Each of the trays has one or more cable carriers 60 that support and protect the optical fibers from being bent in an arc having a radius of curvature less than a predetermined value. Each of the trays 20 includes reels for storing extra lengths of the optical fibers. Releasable guides 46 are mounted along the outside of the housing for guiding fiber optic cable in a vertical direction to the desired shelves. Additionally, individual cable guides 44 are positioned adjacent the rear corners of the housing for additionally guiding the individual cables into and out of the carriers 60.

Growing community of inventors

Post Falls, ID, United States of America

Paul D Johnson