Lightguide distributing unit

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G02B 636

Patent

active

046308865

ABSTRACT:
A multishelf main distributing frame for lightguide fibers is provided in which each shelf includes a pair of spaced plates (67,68) for receiving cable fibers from the rear portion of the shelf, receiving cross-connect jumper fibers from the front portion thereof, and having one or more removable connector panels (30) for terminating lightguide fibers at opposite sides thereof. The panels are recessed from the front edges of the shelf to assure room for a predetermined minimum bending radius for jumper fibers connected to the front of the panels. Once such panels are installed, they cooperate with the shelf plate members and with a windowed cable channel (17) at the rear of the shelf for protecting relatively lightly sheathed individual fibers of cables passed through the channel into the shelf region. A hinged closure (24) is provided at the front of each shelf for protecting cross-connect jumper fibers of that shelf without subjecting those fibers to possible mechanical damage when the closure is closed.

REFERENCES:
patent: 4002856 (1977-01-01), Sedlacek et al.
patent: 4160880 (1979-07-01), Brey
patent: 4217030 (1980-08-01), Howarth
patent: 4320261 (1982-03-01), Scerbo et al.
patent: 4371757 (1983-02-01), Debortoli et al.
patent: 4408353 (1983-10-01), Bowen et al.
patent: 4502754 (1985-03-01), Kawa
"Preview of OFC '84 Single-Frequency Lasers and High-Speed System Developments Highlight the New Orleans Meeting", Lasers & Applications, J. Hecht, Jan. 1984, pp. 69 et seq. (see pp. 78 and 81).
"Bell System Lightguide Cable Interconnection Equipment, Central Office to Customer Premises", Proceedings of 32nd International Wire and Cable Symposium, M. R. Gotthardt, Nov. 15-17, 1983, pp. 45-48.

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