IP Library Granted Patent US 12681242
Granted Patent B2
US 12681242 · App. 17/887,576 · Granted Jul 14, 2026

High density fiber cassette and enclosure

Inventors: Thomas M. Sedor (Orland Park, IL); Benjamin J. Berridge (Griffith, IN); Max W. Hibner (Glenview, IL); Gregory L. Kuffel (Plainfield, IL)
Assignee: Panduit Corp.
G02B6/3897G02B6/3825G02B6/3879G02B6/4453G02B6/3893G02B6/4452
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Quick Facts
Patent No.
US 12681242
App. No.
17/887,576
Granted
Jul 14, 2026
Kind
B2
Abstract

A high-density fiber cassette and enclosure for installing the cassette are part of a cable management system. The cassette provides a more efficient design enabling installation of additional fiber connecter adapters, thus resulting in high fiber connector density within a given RU space.

Claims (39)

1 . A fiber cassette comprising:

a body comprising:

a top cover;

a first side wall;

a second side wall opposite to the first side wall;

a rear face; and

a front face including a plurality of openings arranged in a single layer horizontal row, each of the openings configured to receive a duplex LC type fiber connector adapter that enables at least twenty-six (26) fiber optic connections in a horizontal row, wherein a divider wall spans from a top to a bottom of the front face and is positioned between adjacent openings included in the plurality of openings on the front face; and

wherein the fiber cassette is configured to be installed into a 1 RU enclosure including a tray, the tray being configured to removably install up to, but not more than, two (2) of the same fiber cassettes to enable up to fifty-two (52) fiber optic connections in a single layer horizontal row.

2 . The fiber cassette of claim 1 , wherein the plurality of openings includes thirteen openings.

3 . The fiber cassette of claim 1 , wherein each opening included in the plurality of openings has a width that is between 1-10% wider than a width of the duplex LC adapter to be installed into the opening.

4 . The fiber cassette of claim 1 , wherein the fiber cassette is a double wide cassette, wherein no more than two double wide cassettes are configured to be installed in a same row within an RU width enclosure.

5 . The fiber cassette of claim 1 , wherein the plurality of openings includes thirteen openings for each installing a duplex LC adapter; and

wherein the 1 RU enclosure includes three (3) trays, each of the three (3) trays configured to hold up to, but not more than, two (2) fiber cassettes such that when fully populated the 1 RU enclosure enables up to 156 fiber connections.

6 . The fiber cassette of claim 1 , wherein the rear face includes at least one opening for installing at least one fiber connector adapter for coupling to at least one of the fiber connector adapters installed into the plurality of openings at the front face.

7 . The fiber cassette of claim 1 , wherein the first side wall includes at least one stopping member.

8 . The fiber cassette of claim 1 , wherein a front of the divider wall is flush with a plane of the front face.

9 . The fiber cassette of claim 1 , wherein a front of the divider wall is recessed behind a plane of the front face.

10 . A fiber enclosure comprising:

a chassis;

a first cassette tray installed within the chassis, the first cassette tray configured to translate within the fiber enclosure and hold a first fiber cassette, wherein the fiber enclosure is a 1 RU sized enclosure; and

the first fiber cassette comprising:

a body comprising:

a top cover;

a first side wall;

a second side wall opposite to the first side wall;

a rear face; and

a front face including a plurality of openings arranged in a single layer horizontal row, each of the openings configured to receive a duplex type fiber connector adapter that enables at least twenty-six (26) fiber optic connections in a horizontal row, wherein a divider wall spans from a top to a bottom of the front face and is positioned between adjacent openings included in the plurality of openings on the front face; and

a second fiber cassette configured to be installed next to the first fiber cassette on the first cassette tray, wherein the second fiber cassette includes a second front face including a plurality of second openings arranged in a single layer horizontal row, each of the second openings configured to each receive a second fiber connector adapter configured to enable at least twenty-six (26) fiber optic connections in a horizontal row, such that when the first fiber cassette and the second fiber cassette are installed onto the first cassette tray up to fifty-two (52) fiber optic connections are enabled within the 1 RU width of the fiber enclosure.

11 . The fiber enclosure of claim 10 , further comprising:

a second cassette tray installed within the chassis and below the first cassette tray, the second cassette tray configured to translate within the fiber enclosure and hold a third fiber cassette; and

the third fiber cassette comprising:

a body including a top cover, a first side wall, a second side wall opposite to the first side wall, a rear face, and a front face; and

wherein the front face includes a plurality of openings configured to receive more than twelve adapters.

12 . The fiber enclosure of claim 10 , wherein the plurality of openings on the front face of the first fiber cassette includes 13 openings.

13 . The fiber enclosure of claim 10 , wherein each opening on the front face of the first fiber cassette has a width that is between 1-10% wider than a width of the duplex LC adapter to be installed into the opening.

14 . The fiber enclosure of claim 10 , wherein the first fiber cassette is a double wide cassette and the second fiber cassette is a double wide cassette such that only the first fiber cassette and the second fiber cassette may fit onto the first fiber tray within the 1 RU width of the fiber enclosure.

15 . The fiber enclosure of claim 10 , wherein the plurality of openings on the front face of the first fiber cassette includes 13 openings for each installing a duplex LC adapter; and

wherein when the 1 RU enclosure is fully populated the 1 RU enclosure enables up to 156 fiber connections.

16 . The fiber enclosure of claim 10 , wherein a front of the divider wall is recessed behind a plane of the front face of the first fiber cassette.