Patent ID: 12235504

DETAILED DESCRIPTION

Reference will now be made in detail to the exemplary aspects of the present disclosure that are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like structure.

Referring now toFIGS.1-3, a telecommunications assembly10is shown. The telecommunications assembly10includes a chassis12(e.g., an enclosure, a case, etc.) and a tray assembly14(e.g., a shelf assembly, a drawer assembly, etc.) that removably mounts in the chassis12. The telecommunications assembly10is adapted for mounting to a telecommunications rack15.

Referring now toFIGS.1-6, the chassis12will be described. The chassis12is adapted for connection to the rack15. In the depicted embodiment, the chassis12is generally rectangular in shape. The chassis12includes a base16, a first sidewall18, an oppositely disposed second sidewall20and a cover22. The base16includes a first end24, an oppositely disposed second end26, a first side28that extends between the first and second ends24,26and an oppositely disposed second side30. In the depicted embodiment, the first end24is a front end of the base16while the second end26is a back end. In one embodiment, the chassis12includes a major dimension W, which is measured from the first side28to the second side30, and a minor dimension D, which is measured from the first end24to the second end26. In the depicted embodiment, the major dimension W is greater than the minor dimension D.

The first and second sidewalls18,20extend outwardly from the base16. In the depicted embodiment, the first and second sidewalls18,20extend outwardly in a direction that is generally perpendicular to the base16. In another embodiment, the first and second sidewalls18,20extend outwardly from the base16at an oblique angle.

The first sidewall18is disposed at the first side28of the base16while the second sidewall20is disposed at the second side30of the base16. The first sidewall18includes a first end32a, an oppositely disposed second end32b, a first side34athat extends between the first and second ends32a,32bof the first sidewall18and an oppositely disposed second side34b. The second sidewall20includes a first end36a, an oppositely disposed second end36b, a first side38athat extends between the first and second ends36a,36bof the second sidewall20and an oppositely disposed second side38b.

The first side34aof the first sidewall18is engaged to the first side28of the base16so that the first end32aof the first sidewall18is adjacent to the first end24of the base16. The first side38aof the second sidewall20is engaged to the second side30of the base16so that the first end36aof the second sidewall20is adjacent to the first end24of the base16. In the depicted embodiment, the first sides34a,38aof the first and second sidewalls18,20are integral with the base16. In another embodiment, the first sides34a,38aof the first and second sidewalls18,20are fastened (e.g., welded, pop riveted, bolted, screwed, glued, etc.) to the base16.

The second sides34b,38bof the first and second sidewalls18,20are engaged to the cover22. In the depicted embodiment, the second sides34b,38binclude tabs40that are engaged to the cover22by fasteners (e.g., screws, bolts, rivets, welds, adhesive, etc.).

Each of the first and second sidewalls18,20includes a mounting bracket42. In the depicted embodiment, the mounting bracket42is generally L-shaped. The mounting bracket42includes a first end portion44that mounts to one of the first and second sidewalls18,20and a second end portion46that is adapted for engagement with the rack15. In the depicted embodiment, the first end portion44is engaged to the first and second sidewalls18,20by a plurality of fasteners (e.g., screws, bolts, rivets, welds, adhesive, etc.).

Each of the first and second sidewalls18,20define a plurality of holes48. In the depicted embodiment, the holes48are disposed adjacent to the first sides34a,38aof the first and second sidewalls18,20. In the depicted embodiment, the holes48are generally rectangular in shape.

The base16, the first and second sidewalls18,20and the cover22cooperatively define an interior region50. The interior region50is adapted to receive the tray assembly14.

The first ends32a,36aof the first and second sidewalls18,20and the first end24of the base16cooperatively define a first opening52. The first opening52provides access to the interior region50. In the depicted embodiment, the first opening52is a front opening to the interior region50.

The second ends32b,36bof the first and second sidewalls18,20and the second end26of the base16cooperatively define a second opening54. The second opening54provides access to the interior region50. In the depicted embodiment, the second opening54is oppositely disposed from the first opening52. In the depicted embodiment, the second opening54is a back opening.

Referring now toFIGS.7and8, the tray assembly14is shown. The tray assembly14includes a tray60(e.g., a shelf, a drawer, etc.) and a cable spool assembly62rotatably mounted to the tray60. The tray assembly14is adapted for insertion and removal from the chassis12as a unit without requiring the cable spool assembly62to be detached from the tray60.

The tray60includes a base panel64having a first end portion66(e.g., a front end portion), an oppositely disposed second end portion68(e.g., a back end portion), a first side portion70that extends at least partially between the first and second end portions66,68and an oppositely disposed second side portion72that extends at least partially between the first and second end portions66,68. In the depicted embodiment, the first and second side portions70,72extend outwardly from the base panel64in a generally perpendicular direction.

The tray60defines a lateral direction L and a front-to-back direction F-B. The lateral direction L extends between the first and second side portions70,72. In the depicted embodiment, the lateral direction L is generally perpendicular to the first and second side portions70,72. The front-to-back direction F-B extends between the first and second end portions66,68. The front-to-back direction F-B is generally perpendicular to the lateral direction L.

The tray60includes a plurality of resilient latches74. In the depicted embodiment, the tray60includes a first resilient latch74aengaged to the first side portion70and a second resilient latch74bengaged to the second side portion72.

In the depicted embodiment, the resilient latch74includes a first axial end portion76and an oppositely disposed second axial end portion78. The first axial end portion76includes a first protrusion80while the second axial end portion78includes a second protrusion82. Each of the first and second protrusions80,82includes a lip84and an angled surface86. The first and second protrusions80,82are oppositely disposed on the resilient latch74so that the lip84of the first protrusion80faces the first end portion66of the base panel64while the lip84of the second protrusion82faces the second end portion68of the base panel64. The angled surface86of the first protrusion80flares outwardly toward the first axial end portion76while the angled surface86of the second protrusion82flares outwardly toward the second axial end portion78.

The first resilient latch74ais secured to the first side portion70by a plurality of fasteners (e.g., screws, bolts, rivets, welds, adhesive, etc.). The first resilient latch74ais secured to the first side portion70at a location disposed between the first and second axial end portions76,78of the first resilient latch74a. In the depicted embodiment, the first resilient latch74ais secured to the first side portion70at a location disposed between the first and second protrusions80,82.

The second resilient latch74bis secured to the second side portion72by a plurality of fasteners (e.g., screws, bolts, rivets, welds, adhesive, etc.). The second resilient latch74bis secured to the second side portion72at a location disposed between the first and second axial ends76,78of the second resilient latch74b. In the depicted embodiment, the second resilient latch74bis secured to the second side portion72at a location disposed between the first and second protrusions80,82of the second resilient latch74b.

In the depicted embodiment, the first and second side portions70,72of the base panel64include a plurality of openings88through which the first and second protrusions80,82extend. Each of the first and second axial ends76,78of the first and second resilient latches74a,74bis adapted to flex inwardly toward the tray60. As the first axial ends76of the first and second resilient latches74a,74bflex inwardly, the distance that the first protrusion80extends outwardly through the openings88decreases.

Referring now toFIGS.8-12, the tray60includes a plurality of bend radius protectors90. A first plurality of bend radius protectors90ais disposed adjacent to the first end portion66of the base panel64. A second plurality of bend radius protectors90bis disposed adjacent to the second end68of the base panel64.

In the depicted embodiment, the bend radius protector90includes a body92having a first end surface94and an oppositely disposed second end surface96. The body92defines a passage98that extends through the first and second end surfaces94,96. In the depicted embodiment, the passage98is generally oblong in shape. The passage98includes a first arcuate edge100at the first end surface94and a second arcuate edge102at the second end surface96. Each of the first and second arcuate edges100,102includes a radius that is greater than the minimum bend radius of a fiber optic cable that passes through passage98so as to reduce the risk of attenuation damage to the fiber optic cable.

The body92encloses the passage98. A slot104is defined by a side106of the body92. The slot104extends through the side106of the body92and into the passage98. The slot104extends through the first and second end surface94,96. The slot104is adapted to allow a fiber optic cable to be inserted laterally into the passage98rather than threading the fiber optic cable through the passage98. In the depicted embodiment, the slot104is disposed at an angle relative to a central axis108that extends through the passage98. The slot104angles as it extends from the first end surface94to the second end surface96. In one embodiment, the angle is an oblique angle.

The first and second pluralities of bend radius protectors90are fastened to the base panel64of the tray60. In the depicted embodiments ofFIGS.9-12, the bend radius protectors90include a pin99that is adapted for receipt in a hole in the base panel64of the tray60of the tray assembly14. The pin99and the fastener cooperatively secure the bend radius protectors to the base panel64.

In the depicted embodiments ofFIG.8, the first plurality of bend radius protectors90is disposed at the first end portion66of the base panel64so that the central axes108that extend through the passages98of the first plurality of bend radius protectors90are aligned. In the depicted embodiment, the central axes108of the first plurality of bend radius protectors90are generally parallel to the lateral direction L.

The second plurality of bend radius protectors90is disposed at the second end portion68of the base panel64so that the central axes108of the bend radius protectors90are angled outwardly. In the depicted embodiment, the central axes108of the second plurality of bend radius protectors90are disposed at an oblique angle relative to the lateral direction L and the front-to-back direction F-B.

Referring now toFIG.8, the first end portion66of the tray60defines a recess110. A tab112extends from the base panel64into the recess110and separates the recess110into a first recess110aand a second recess110b. The tab112is generally coplanar with the base panel64. The tab112includes a free end114that extends in a direction that is generally perpendicular to the base panel64. In the depicted embodiment, the first and second recesses110a,110bare generally equal in size.

Referring now toFIGS.7,8,13and14, the cable spool assembly62will be described. The cable spool assembly62is adapted to rotate relative to the tray60. In the depicted embodiment, the cable spool assembly62is rotatably engaged to the base panel64of the tray60. The cable spool assembly62includes a stored position (shown inFIG.7). In one embodiment, the cable spool assembly62can be releasably secured in the stored position. The cable spool assembly62is adapted to be rotated from the stored position to deploy fiber optic cable wrapped about the cable spool assembly62.

The cable spool assembly62includes a hub120, a first flange122engaged to the hub120and a second flange124engaged to the hub120opposite the first flange122. The hub120includes a body126having a first surface128and an oppositely disposed second surface130. In one embodiment, the distance between the first and second surfaces128,130is less than or equal to about 0.75 inches. In another embodiment, the distance between the first and second surfaces128,130is less than or equal to about 0.5 inches. In another embodiment, the distance between the first and second surface128,130is in a range of about 0.25 inches to about 0.5 inches.

In the depicted embodiment, the body126of the hub120is generally oval in shape. The oval shape of the body126of the hub120allows for a greater length of fiber optic cable to be coiled around the body126for a given depth and width of the cable spool assembly62. The body126of the hub120includes a major dimension, as measured along a major axis of the body126, and a minor dimension, as measured along a minor axis. In the depicted embodiment, the major dimension is greater than the minor dimension. When in the stored position, the major axis is generally parallel to the lateral direction L. In another embodiment, the major axis is generally parallel to a plane that extends through the first opening52of the chassis12when the cable spool assembly62is in the stored position. While the body126of the hub120has been described as being oval in shape, it will be understood that the scope of the present disclosure is not limited to the body126of the hub120being oval in shape. The body126of the hub120can have various geometric shapes (e.g., circular, obround, etc.).

In one embodiment, the depth of the cable spool assembly62is less than or equal to about 16 inches. In another embodiment, the depth of the cable spool assembly62is less than or equal to about 15 inches. In another embodiment, the width of the cable spool assembly62is less than or equal to about 18 inches. In another embodiment, the width of the cable spool assembly62is less than or equal to about 17 inches. In one embodiment, the body126is configured to receive at least about 500 feet of 3 mm fiber optic cable. In another embodiment, the body126is configured to receive at least about 400 feet of 3 mm fiber optic cable. In another embodiment, the body126is configured to receive at least about 200 feet of 3 mm fiber optic cable. In another embodiment, the body126is configured to receive at least about 250 feet of dual-zip 3 mm fiber optic cable. In another embodiment, the body126is configured to receive at least about 200 feet of dual-zip 3 mm fiber optic cable. In another embodiment, the body126is configured to receive at least about 100 feet of dual-zip 3 mm fiber optic cable.

The body126of the hub120includes a first longitudinal end132, an oppositely disposed second longitudinal end134, a first longitudinal side136that extends between the first and second longitudinal ends132,134and an oppositely disposed second longitudinal side138that extends between the first and second longitudinal ends132,134. The first and second longitudinal ends132,134are generally arcuate in shape. In the depicted embodiment, the first and second longitudinal ends132,134are generally semi-circular in shape.

The hub120further includes a strain relief protrusion140that extends outwardly from the second surface130of the hub120. In the depicted embodiment, the strain relief protrusion140is generally cylindrical in shape. The strain relief protrusion140has an outer diameter that is less than a distance between the first and second longitudinal sides136,138.

The hub120defines a cable transition notch142disposed in the first longitudinal side136of the body126. The cable transition notch142extends inward into the body126from the first longitudinal end132to the strain relief protrusion140. In the depicted embodiment, the cable transition notch142angles inwardly from the first longitudinal end132of the body126to the strain relief protrusion140. The cable transition notch142is adapted to provide a location at which fiber optic cable coiled about the body126of the hub120can pass to the strain relief protrusion140.

The hub120further defines a central bore144. The central bore144extends through the first and second surfaces128,130and through the strain relief protrusion140.

The first flange122is engaged to the hub120. In the subject embodiment, the first flange122is fastened (e.g., screwed, bolted, riveted, welded, bonded, etc.) to the first surface128of the hub120. The first flange122is generally planar and oval in shape. The first flange122defines a bore146that is adapted for alignment with the central bore144of the hub120when the first flange122is engaged to the hub120.

The second flange124is engaged to the hub120. In the depicted embodiment, the second flange124is fastened (e.g., screwed, bolted, riveted, welded, bonded, etc.) to the second surface130of the hub120.

The second flange124includes a central opening148that extends through the second flange124. The central opening148is adapted to receive the strain relief protrusion140of the hub120when the second flange124is engaged to the hub120so that the strain relief protrusion140extends outwardly from the second flange124of the cable spool assembly62. In the depicted embodiment, the central opening148is oversized to allow the fiber optic cable which passes through the cable transition notch142to pass through the central opening148.

The second flange124includes an outer surface150. The outer surface150includes a cable management area152and a termination area154disposed adjacent to the cable management area152.

The cable management area152includes a plurality of fan-out mounting brackets156. The fan-out mounting brackets156are spaced apart to receive a fan-out158(shown inFIG.8), which separates optical fibers of a fiber optic cable, between the fan-out mounting brackets156. The fan-out mounting brackets156extend outwardly from the outer surface150of the second flange124. In the depicted embodiment, the fan-out mounting brackets156extend outwardly in a generally perpendicular direction. Each of the fan-out mounting brackets156includes at least one receptacle160. In the depicted embodiment, each of the fan-out mounting brackets156includes two receptacles160.

Referring now toFIGS.8and15-18, the fan-out158is retained in the fan-out mounting bracket156by a fan-out clip162. The fan-out clip162includes a cover plate164and a plurality of latches166that extend outwardly from the cover plate164.

In the depicted embodiment, the cover plate164is similar in shape to the outline of the fan-out158. The cover plate164includes a first end168and an oppositely disposed second end170. The second end170includes a width that is less than a width of the first end168so that the cover plate164tapers from the first end168to the second end170.

The latches166extend outwardly from the first end168of the cover plate164in a direction that is generally perpendicular to the cover plate164. Each of the latches166includes a base end172and a free end174. The base end172is engage to the cover plate164. The free end174includes a latch protrusion176that is adapted for receipt in the receptacle160of the fan-out mounting bracket156.

An alignment pin178extends outwardly from the second end170of the cover plate164of the fan-out clip162. In the depicted embodiment, the alignment pin178extends in a direction that is generally parallel to the latches166. The alignment pin178is sized to fit within a first alignment opening180ain the fan-out158. In one embodiment, the outer surface150of the second flange124includes a protrusion that is adapted to fit with a second alignment opening180bof the fan-out158.

With the fan-out158disposed between the fan-out mounting brackets156, the alignment pin178of the fan-out clip162is aligned with the first alignment opening180aof the fan-out158. The fan-out clip162is pressed down toward the outer surface150of the second flange124until the latch protrusion176engages the receptacle160of the fan-out mounting bracket156.

In the depicted embodiment, the mounting brackets156are adapted to hold multiple fan-outs158. Each of the fan-out mounting brackets156includes one receptacle160per fan-out158that the fan-out mounting brackets156can hold. In the depicted embodiment, the fan-out mounting brackets156can hold two fan-outs158. So, in the depicted embodiment, each of the fan-out mounting brackets156defines two receptacles160. If only one fan-out158is disposed in the fan-out mounting brackets156, the fan-out clip162is pressed down until the latch protrusions176engage the receptacles160closest to the outer surface150of the second flange124. If two fan-outs158are disposed in the fan-out mounting brackets156, the fan-out clip162is pressed down until the latch protrusions176engage the receptacles160adjacent to the receptacles160closest to the outer surface150of the second flange124.

Referring now toFIGS.7and8, the cable management area152includes a plurality of bend radius protectors182. The bend radius protectors182are disposed on the outer surface150of the second flange124. The bend radius protectors182are adapted to prevent damage to the optical fibers that are routed from the fan-out158to the termination area154. In the depicted embodiment, each of the bend radius protectors182is arcuate in shape and includes a retention projection184that extends outwardly from a convex surface186of the bend radius protector182.

Referring now toFIGS.7,19, and20, the termination area154includes an adapter module190(e.g., a termination unit, etc.). The adapter module190is adapted to rotate in unison with the cable spool assembly62and to slide relative to the second flange124. The adapter module190is adapted to slide relative to the second flange124in a direction that is generally parallel to the second flange124between a retracted position (shown inFIG.7) and an extended position (shown inFIG.20). In the depicted embodiment, the adapter module190is adapted to slide in a direction that is generally parallel to the front-to-back direction F-B. The adapter module190includes a carrier192and a plurality of adapters194disposed in the carrier192.

In the depicted embodiment, the carrier192includes a first rail196aand a second rail196b. Each of the first and second rails196a,196bincludes a first axial end198and a second axial end200. The carrier192further includes a cross-support202that extends between the first and second rails196a,196bat a location between the first and second axial ends198,200.

An adapter mounting bracket204is engaged with the first axial ends198of the first and second rails196a,196b. The adapter mounting bracket204defines a plurality of adapter openings205that is adapted to receive the plurality of adapters194. In the depicted embodiment, the adapter openings205are arranged in a line that is generally perpendicular to the direction of slide movement of the adapter module190so that the direction of slide movement of the adapter module190is generally perpendicular to the line of adapters194mounted in the adapter mounting bracket204.

In one embodiment, the adapter mounting bracket204is adapted to receive twenty-four adapters194. In another embodiment, the adapter mounting bracket204is adapted to receive twelve adapters194. In another embodiment, the adapter mounting bracket204is adapted to receive forty-eight adapters194.

The first and second rails196a,196bof the adapter module190are slidably engaged to the outer surface150of the second flange124by a plurality of guides206. The guides206extend outwardly from the outer surface150and define channels208in which the first and second rails196a,196bare slidably disposed.

The second flange124defines a plurality of mounting tabs210that extend outwardly from a perimeter of the outer surface150. The mounting tabs210are adapted to abut mounts212that extend outwardly from the first axial ends198of the first and second rails196a,196bwhen the adapter module190is in the retracted position. With the adapter module190in the retracted position, fasteners214(e.g., screws, bolts, rivets, etc.) disposed through the mounts212can be engaged to the mounting tabs210to retain the adapter module190in the retracted position. In one embodiment, the fasteners214are captive thumb screws.

With the fasteners214disengaged from the mounting tabs210, the adapter module190can be translated outwardly from the second flange124of the cable spool assembly62in a direction that is generally parallel to the front-to-back direction F-B to the extended position. In one embodiment, the adapter module190has a range of travel of at least two inches. In another embodiment, the adapter module190is adapted to slide a distance that provides access to inward facing ports of the adapters194when the tray assembly14is engaged to the chassis12. By providing access to the inward facing ports of the adapters194, connectorized ends of fiber optic cables that are plugged into the inward facing ports of the adapters194can be removed and cleaned while the tray assembly14is engaged to the chassis12.

In the extended position, a catch216abuts the cross-support202and prevents the adapter module190from moving farther outward from the second flange124. In the depicted embodiment, the catch216extends outwardly from a perimeter of the second flange124.

The adapter module190includes a plurality of resilient latches220that is engaged with the first axial ends198of the first and second rails196a,196b. The resilient latches220are disposed between the first and second rails196a,196band the mounting tabs212. When the adapter module190is in the extended position (shown inFIG.20), the resilient latches are adapted to engage the mounting tabs212to prevent the adapter module190from being moved inwardly toward the second flange124. The engagement of the resilient latches220and the mounting tabs212prevents the adapter module190from moving toward the retracted position as connectorized ends of fiber optic cables are inserted into outward facing ports of the adapters194.

Referring now toFIGS.8,21, and22, the installation of the cable spool assembly62to the tray60will be described. The cable spool assembly62is rotatably engaged to the tray60by a bushing222. In the depicted embodiment, the bushing222provides the engagement between the cable spool assembly62and the base panel64of the tray60.

The bushing222is generally cylindrical in shape. The bushing222includes a first axial end224and a second axial end226. The first axial end224of the bushing222includes an end surface228. The end surface228is adapted for abutment with the base panel64of the tray60. In one embodiment, the end surface228defines a hole229that extends through the end surface228. The hole229is adapted to receive a fastener230(e.g., screw, bolt, etc.) that is used to secure or anchor the bushing222to the tray60. The end surface228includes a peg231that extends outwardly from the end surface228. The peg231is adapted for receipt in an opening in the base panel64of the tray60. The peg231is adapted to prevent the bushing222from rotating relative to the tray60.

The first axial end224has an outer diameter that is less than the inner diameter of the central bore144of the hub120so that the first axial end224of the bushing222can be inserted into the central bore144of the hub120. The second axial end226has an outer diameter that is greater than the inner diameter of the central bore144of the hub120. With the first axial end224of the bushing222disposed in the central bore144of the hub120and the fastener securing the end surface228to the base panel64, the second axial end226abuts an end surface of the strain relief protrusion140of the hub120and captures the cable spool assembly62between the base panel64of the tray60and the second axial end226of the bushing222. As the bushing222is generally cylindrical in shape, the cable spool assembly62can rotate about the bushing222. In one embodiment, the bushing222is keyed to the base panel64so that the bushing222is stationary relative to the tray60.

Referring now toFIGS.7and14, the routing of a fiber optic cable232in the tray assembly14will be described. The fiber optic cable232includes a first end and a second end. The fiber optic cable232is coiled about the body126of the hub120of the cable spool assembly62between the first and second flanges122,124.

The first end of the fiber optic cable232is disposed closest to the hub120. A portion of the first end passes through the cable transition notch142in the hub120and through the central opening148of the second flange124. The portion of the first end of the fiber optic cable232is coiled at least once around the strain relief protrusion140of the hub120. In one embodiment, the first end is anchored to the second flange124(e.g., with a cable tie) after being wrapped at least once around the strain relief protrusion140. The first end is routed from the strain relief protrusion140to the fan-out158. Optical fibers233are separated from the fiber optic cable232at the fan-out158. Each of the optical fibers233includes a connectorized end. The connectorized ends of the optical fibers233are routed to the adapters194and engaged to inward facing ports of the adapters194.

In one embodiment, the second end of the fiber optic cable232has a multi-fiber connector353c. The second end can be routed outside of the tray assembly14at a location adjacent to the first end portion66of the base panel64of the tray60or at an opposite location adjacent to the second end portion68of the base panel64of the tray60. The second end is routed through the passage98of any one of the bend radius protectors90disposed on the tray60.

Referring now toFIG.3, the insertion of the tray assembly14into the chassis12will be described. The tray assembly14is adapted for insertion into the chassis12through either the first opening52or the second opening54of the chassis12.

To insert the tray assembly14into the first opening52of the chassis12, the second axial ends78of the first and second resilient latches74a,74bof the tray assembly14are flexed inwardly. The second end portion68of the base panel64of the tray60is inserted through the first opening52of the chassis12. The tray assembly14is then pushed into the interior region50of the chassis12until the first and second protrusions80,82on each of the first and second resilient latches74a,74bare engaged in the holes48of the first and second sidewalls18,20of the chassis12. In the depicted embodiment, the first and second protrusions80,82on each of the first and second resilient latches74a,74bprovide four-point contact between the tray assembly14and the chassis12.

The first protrusions80of the first and second resilient latches74a,74bprevent the tray assembly14from being removed through the first opening52of the chassis12by abutting the holes48in the chassis12but allow the tray assembly to be removed through the second opening54of the chassis12. The second protrusions82of the first and second resilient latches74a,74bprevent the tray assembly14from being removed through the second opening54of the chassis12but allow the tray assembly14to be removed through the first opening52of the chassis12.

To remove the tray assembly14from the first opening52of the chassis12, the first axial end portions76of the resilient latches74a,74bof the tray assembly14are flexed inwardly until the lips84of the first protrusions80are no longer disposed in the holes48of the chassis12. With the first axial end portions76of the resilient latches74a,74bof the tray assembly14flexed inwardly, the tray assembly14is pulled out of the first opening52of the chassis12. As the tray assembly14is pulled out of first opening52, the angled surfaces86of the second protrusions82contact an edge of the hole48that causes the second axial end portions78of the resilient latches74a,74bto flex inwardly.

To insert the tray assembly14into the second opening54(shown inFIG.4) of the chassis12, the first axial end portions76of the first and second resilient latches74a,74bof the tray assembly14are flexed inwardly. The first end portion66of the base panel64of the tray60is inserted through the second opening54of the chassis12. The tray assembly14is pushed into the interior region50of the chassis12until the first and second protrusion of the first and second resilient latches are engaged in the holes48of the first and second sidewalls18,20of the chassis12.

To remove the tray assembly14from the second opening54of the chassis12, the second axial end portions78of the resilient latches74a,74bof the tray assembly14are flexed inwardly until the lips84of the second protrusions82are no longer disposed in the holes48of the chassis12. With the second axial end portions78of the resilient latches74a,74bof the tray assembly14flexed inwardly, the tray assembly14is pulled out of the second opening54of the chassis12. As the tray assembly14is pulled out of first opening52, the angled surfaces86of the first protrusions80contact an edge of the hole48that causes the first axial end portions76of the resilient latches74a,74bto flex inwardly.

With the tray assembly14installed in the chassis12, the fiber optic cable232can be deployed by pulling the second end of the fiber optic cable232through one of the first and second openings52,54of the chassis12. As the fiber optic cable232is pulled, the cable spool assembly62rotates about the bushing222. As the cable spool assembly62rotates, the adapter module190rotates in unison. Since the adapter module190rotates in unison with the cable spool assembly62, the connectorized ends of the first end of the fiber optic cable232can be engaged in the inwardly facing ports of the adapters194. The second end of the fiber optic cable232is pulled until a desired length of fiber optic cable232has been deployed.

Referring now toFIGS.23and24, a locking mechanism240is shown. The locking mechanism240is adapted to prevent the cable spool assembly62from rotating relative to the tray60. In one embodiment, the locking mechanism240provides an electrical connection between the tray60and the cable spool assembly62so as to serve as a ground. A separate ground is provided between the tray60and the chassis12.

The locking mechanism240includes an arm242that pivots about a location on the tray60. In the depicted embodiment, the arm242pivots about a location disposed at the second end portion68of the base panel64of the tray60.

When a desired length of fiber optic cable232has been deployed, the arm242is pivoted toward the second flange124of the cable spool assembly62. The second flange124includes a lock mount244(best shown inFIG.13) that extends outwardly from the outer surface150of the second flange124and is disposed at an outer perimeter of the second flange124. The arm242of the locking mechanism240is pivoted until a fastener246(e.g., thumbscrew) that extends through the arm242is aligned with an opening248in the lock mount244. The fastener246is then engaged with the opening248to secure the cable spool assembly62in position relative to the tray60.

Referring now toFIGS.25-27, an alternate embodiment of a telecommunications assembly300is shown. The telecommunications assembly300includes a chassis302and multiple tray assemblies14.

The chassis302is similar to the chassis12previously described except that the chassis302is adapted to receive multiple tray assemblies14. Therefore, it will be understood that the features described with regard to the chassis12may be incorporated in the chassis302.

The chassis302includes a base wall304, a first sidewall306that extends outwardly from the base wall304, an oppositely disposed second sidewall308and a cover310. The base wall304, the first and second sidewalls306,308and the cover310cooperatively define an interior region312that is adapted to receive the plurality of tray assemblies14. The base wall304, the first and second sidewalls306,308and the cover310further define a first opening314to the interior region312and an oppositely disposed second opening316to the interior region312.

The first and second sidewalls306,308of the chassis302include a plurality of first tray guides318(best shown inFIG.27). The first tray guides318extend into the interior region312of the chassis302. The first tray guides318are adapted to abut the base panel64of the tray assembly14and to support the tray assembly14in the interior region312of the chassis302.

The first and second sidewalls306,308of the chassis302further include a plurality of second tray guides319. The second tray guides319define a channel through which the first and second side portions70,72of the base panel64of the tray assembly14pass.

The tray assemblies14can be installed into the chassis302in a manner that is similar to the installation of the tray assembly14in the chassis12, which was previously described. In the depicted embodiment, the tray assemblies14are disposed in a vertical orientation in the interior region312of the chassis302.

In one embodiment, the telecommunications assembly300includes a front cover plate320. The front cover plate320is engaged to the base wall304by a hinge322. In the depicted embodiment, the hinge322is integral with a first end323of the base wall304. The hinge322includes a first arm324having a first curved portion326that opens in a first direction and a second arm327having a second curved portion328that opens in an opposite second direction. The first and second curved portions326,328are adapted to capture a bar330of the front cover plate320that is disposed between an opening332through the front cover plate320and an adjacent edge334of the front cover plate320. In the depicted embodiment, the front cover plate320is adapted to pivot between an open position and a closed position (shown inFIG.23).

Referring now toFIGS.28and29, a cable assembly350is shown. The cable assembly350includes the tray assembly14mounted to a cable spool352. The cable assembly350is adapted to provide a length of fiber optic cable353that is greater than the length that can fit around the cable spool assembly62of the tray assembly14. In the depicted embodiment, the cable spool352can hold a length of the fiber optic cable353that is greater than or equal to 500 feet of 3 mm fiber optic cable. In another embodiment, the cable spool352can hold a length of the fiber optic cable353that is greater than or equal to 1,000 feet of 3 mm fiber optic cable.

The cable spool352, including a drum354and/or flanges356,358, can be manufactured of a plastic material, a paper board material (e.g., cardboard or like material) or a recycled material. In one embodiment, the cable spool352is recyclable or disposable after use.

The cable spool352includes the drum354, the first flange356, and the second flange358. The drum354is adapted to receive the fiber optic cable353coiled around the drum354. The drum354includes a first axial end360and an oppositely disposed second axial end362. The first flange356is engaged to the first axial end360of the drum354. The second flange358is engaged to the second axial end362of the drum354.

The tray assembly14is mounted to an outer surface364of the first flange356of the cable spool352. In one embodiment, the tray assembly14is tied down to the first flange356so that the base panel64of the tray60abuts the outer surface364of the first flange356.

To assemble the cable assembly350, a first end of a length of the fiber optic cable353is coiled around the cable spool assembly62of the tray assembly14. The fiber optic cable353is routed from the cable spool assembly62of the tray assembly14through one of the bend radius protectors90and through a notch366in the first flange356and around the drum354. The notch366in the first flange356extends inwardly from an outer edge of the first flange356to the drum354. The notch366allows the fiber optic cable353to pass to the drum354of the cable spool352from an off-drum location.

To deploy the fiber optic cable353from the cable assembly350, the cable assembly350is positioned in front of or behind a telecommunications mount (e.g., rack15, frame, etc.), which is adapted to receive the telecommunications assembly10,300, depending on whether the telecommunications assembly10,300is to installed from the front or back of the telecommunications mount. The fiber optic cable353is deployed from the cable spool352of the cable assembly350. In one embodiment, the cable spool352with tray assembly14attached thereto is mounted to a spindle/rotation structure370(seeFIG.35). The fiber optic cable353is pulled from the cable spool352, which causes rotation of the cable spool352and concurrent rotation of the tray assembly14carried by the cable spool352.

After the fiber optic cable353is paid out from the cable spool352, the cable spool assembly62of the tray assembly14is rotated relative to the tray60and the cable spool352to pay off additional fiber optic cable353disposed about the cable spool assembly62. With the fiber optic cable353paid out or partially paid out, the multi-fiber connector353cof the second end of the fiber optic cable353is plugged into a component.

The cable spool352is then removed from the tray assembly14. In one embodiment, the cable spool352is discarded (e.g., disposed of or recycled). The tray assembly14is moved toward the rack15(shown inFIG.1). As the tray assembly14is moved toward the rack15, the cable spool assembly62rotates relative to the tray60to provide additional length of the fiber optic cable353. The tray assembly14is then installed into the chassis12,302, which, in one embodiment, is pre-mounted in the rack15. If it is desired to route the fiber optic cable353out the front of the chassis12or the front of the rack15, the tray assembly14is inserted into the rack15from the front. If it is desired to route the fiber optic cable353out the back of the chassis12or the back of the rack15, the tray assembly14is inserted into the rack15from the back. With the tray assembly14engaged to the chassis12, the telecommunications assembly10,300is installed in the telecommunications mount.

The cable assembly350is depicted atFIGS.28and29including the cable spool352. In other embodiments, other spool assemblies may be used. For example, the spool assemblies disclosed at U.S. provisional patent application Ser. No. 61/370,070, filed Aug. 2, 2010, hereby incorporated by reference in its entirety, can be included in certain embodiments. In still other embodiments, a cable spool352′, described below, can be included.

Turning now toFIGS.30-34, a tray assembly14′ of the present disclosure is illustrated. The tray assembly14′ is similar to the tray assembly14, disclosed above. The tray assembly14′ includes a tray60′ (e.g., a shelf, a drawer, etc.) and a cable spool assembly62′ rotatably mounted to the tray60′. The tray60′ is similar to the tray60, and the cable spool assembly62′ is similar to the cable spool assembly62. Similar to the tray assembly14, the tray assembly14′ is adapted for insertion and removal from the chassis12and302as a unit, without requiring the cable spool assembly62′ to be detached from the tray60′.

The tray60′ includes a base panel64′ having a first end portion66′ (e.g., a front end portion), an oppositely disposed second end portion68′ (e.g., a back end portion), a first side portion70′ that extends at least partially between the first and second end portions66′,68′ and an oppositely disposed second side portion72′ that extends at least partially between the first and second end portions66′,68′. In the depicted embodiment, the first and second side portions70′,72′ extend outwardly from the base panel64′ in a generally perpendicular direction.

Referring now toFIG.31, the first end portion66′ of the tray60′ defines a recess110′. A tab112′ extends from the base panel64′ into the recess110′ and separates the recess110′ into a first recess110a′ and a second recess110b′. The tab112′ is generally coplanar with the base panel64′. The tab112′ includes a free end114′ that extends in a direction that is generally perpendicular to the base panel64′. In the depicted embodiment, the first and second recesses110a′,110b′ are generally equal in size.

Similar to the cable spool assembly62, the cable spool assembly62′ is adapted to rotate relative to the tray60′. In the depicted embodiment, the cable spool assembly62′ is rotatably engaged to the base panel64′ of the tray60′. The cable spool assembly62′ includes a stored position (shown inFIGS.30-31). In one embodiment, the cable spool assembly62′ can be releasably secured in the stored position. The cable spool assembly62′ is adapted to be rotated from the stored position to deploy fiber optic cable wrapped about the cable spool assembly62′.

The cable spool assembly62′ can include the hub120, a first flange122′ engaged to the hub120and a second flange124′ engaged to the hub120opposite the first flange122′. In the subject embodiment, the first flange122′ is fastened (e.g., screwed, bolted, riveted, welded, bonded, etc.) to the first surface128of the hub120. The first flange122′ is generally planar and oval in shape. In the depicted embodiment, the second flange124′ is fastened (e.g., screwed, bolted, riveted, welded, bonded, etc.) to the second surface130of the hub120.

The second flange124′ includes a central opening148′ that extends through the second flange124′. The central opening148′ is adapted to receive the strain relief protrusion140of the hub120when the second flange124′ is engaged to the hub120so that the strain relief protrusion140extends outwardly from the second flange124′ of the cable spool assembly62′. In the depicted embodiment, the central opening148′ is oversized to allow the fiber optic cable which passes through the cable transition notch142to pass through the central opening148′.

The second flange124′ includes an outer surface150′. The outer surface150′ includes a cable management area152′ and a termination area154′ disposed adjacent to the cable management area152′.

The cable management area152′ includes a plurality of fan-out mounting features156′. The fan-out mounting features156′ are spaced apart to receive one or more fan-outs158′, similar to the fan-out158, which separates optical fibers of a fiber optic cable. As depicted, the fan-out mounting features156′ extend outwardly from the outer surface150′ of the second flange124′. In the depicted embodiment, the fan-out mounting features156′ extend outwardly in a generally perpendicular direction. As depicted, the fan-out mounting features156′ can include a post and a fastening arrangement (e.g., a stud and a nut). Referring now toFIG.31, the fan-out158′ is retained by the fan-out mounting feature156′ and a nut. The fan-out158′ includes at least one mounting hole. As depicted, the fan-out158′ includes two mounting holes with one mounting hole mounted over the post and the other mounting hole mounted over the stud of the mounting feature156′.

Referring now toFIGS.30-34, the termination area154′ includes an adapter module190′ (e.g., a termination unit, etc.). The adapter module190′ is adapted to rotate in unison with the cable spool assembly62′ and to slide relative to the second flange124′. The adapter module190′ is adapted to slide relative to the second flange124′ in a direction that is generally parallel to the second flange124′ between a retracted position (shown inFIGS.30-32) and an extended position (similar to that shown inFIG.20). In the depicted embodiment, the adapter module190′ is adapted to slide in a direction that is generally parallel to a front-to-back direction F-B′. In certain embodiments, the cable spool assembly62′ will not be able to rotate 360 degrees (i.e., rotate through a full revolution) with the adapter module190′ in the extended position. With the adapter module190′ in the extended position, the adapter module190′, and particularly corners of the adapter module190′, may interfere with the first and second side portions70′,72′ of the base panel64′ and/or interfere with the chassis12.

As illustrated atFIGS.32-34, the adapter module190′ includes a carrier192′ and a plurality of adapters194disposed in the carrier192′. In the depicted embodiment, the carrier192′ includes a first rail196a′ and a second rail196b′. Each of the first and second rails196a′,196b′ includes a first axial end198′ and a second axial end200′. The carrier192′ further includes a cross-support202′ that extends between the first and second rails196a′,196b′ at a location between the first and second axial ends198′,200′.

The first and second rails196a′,196b′ of the carrier192′ each include a slot197that extends in the front-to-back direction F-B′. Fasteners199attach the adapter module190′ via the slots197to the cable spool assembly62′. As depicted, the fasteners199attach the carrier192′ to the second flange124′ at fastening holes in the second flange124′. The fasteners199allow the adapter module190′ to travel between the retracted position and the extended position with the fasteners199loosened and can provide stops at the retracted position and the extended position. The adapter module190′ may be secured at the retracted position, the extended position, or an intermediate position by tightening the fasteners199.

As illustrated atFIG.33, an attachment location201can be included at the second axial end200′ of either or both of the first and second rails196a′,196b′ of the carrier192′. As depicted atFIGS.30and33, the attachment location201is a stud at the second axial end200′ of the second rail196b′. The attachment location201is attached to a first end203aof a tether203. A second end203bof the tether203is attached to the second flange124′ by one of the fasteners199. As depicted, the second end203bis attached by one of the fasteners199closest to an adapter mounting bracket204′ of the carrier192′.

The tether203provides electrical grounding to the adapter module190′ from the cable spool assembly62′. The cable spool assembly62′ can be grounded to the tray60′ by the locking mechanism240in a manner similar to the grounding of the cable spool assembly62to the tray60, described above. A separate ground can be provided between the tray60′ and the chassis12, the chassis12and the rack15, and/or the tray60′ and the rack15. Thus, the adapter module190′, the cable spool assembly62′, the tray60′, the chassis12, and the rack15may all be electrically connected.

The adapter mounting bracket204′ is engaged with the first axial ends198′ of the first and second rails196a′,196b′. The adapter mounting bracket204′ defines a plurality of adapter openings205′ that is adapted to receive the plurality of adapters194. In the depicted embodiment, the adapter openings205′ are arranged in a line that is generally perpendicular to the direction of slide movement of the adapter module190′ so that the direction of slide movement of the adapter module190′ is generally perpendicular to the line of adapters194mounted in the adapter mounting bracket204′.

In one embodiment, the adapter mounting bracket204′ is adapted to receive twenty-four adapters194. In another embodiment, the adapter mounting bracket204′ is adapted to receive twelve adapters194. In another embodiment, the adapter mounting bracket204′ is adapted to receive forty-eight adapters194.

The second flange124′ defines a plurality of mounting tabs210′ (seeFIG.30) that extend outwardly from a perimeter of the outer surface150′. The mounting tabs210′ are adapted to abut mounts212′ that extend outwardly from the first axial ends198′ of the first and second rails196a′,196b′ when the adapter module190′ is in the retracted position. With the adapter module190′ in the retracted position, fasteners214′ (e.g., screws, bolts, rivets, thumb screws, etc.) disposed through the mounts212′ can be engaged to the mounting tabs210′ to retain the adapter module190′ in the retracted position. In the depicted embodiment, the fasteners214′ are captive thumb screws.

With the fasteners214′ disengaged from the mounting tabs210′, the adapter module190′ can be translated outwardly from the second flange124′ of the cable spool assembly62′ in a direction that is generally parallel to the front-to-back direction F-B′ to the extended position. In one embodiment, the adapter module190′ has a range of travel of at least two inches. In another embodiment, the adapter module190′ is adapted to slide a distance that provides access to inward facing ports of the adapters194when the tray assembly14′ is engaged to the chassis12. By providing access to the inward facing ports of the adapters194, connectorized ends of fiber optic cables that are plugged into the inward facing ports of the adapters194can be removed and cleaned while the tray assembly14′ is engaged to the chassis12.

In the extended position, a catch216′ abuts the cross-support202′ and prevents the adapter module190′ from moving farther outward from the second flange124′. As depicted, the catch216′ extends outwardly from a perimeter of the second flange124′.

As depicted atFIGS.33and34, guiding tabs207are provided on the adapter module190′ to facilitate the rotation of the cable spool assembly62′ within and/or about the chassis12. In particular, the depicted embodiment includes a pair of the guiding tabs207at opposite ends of the adapter mounting bracket204′. The guiding tabs207are angled downwardly and positioned adjacent corners209of the cable spool assembly62′. As the cable spool assembly62′ rotates within the chassis12, the guiding tabs207prevent or reduce the potential of the corners209of the cable spool assembly62′ getting snagged and/or caught on various features, including the openings52,54, of the chassis12. The guiding tabs207may be functional in both rotational directions of the cable spool assembly62′.

As depicted atFIGS.30and31, a cover250can be provided over the cable management area152′. The cover250can cover or partially cover the optical fibers233, the fan-outs158′, and other components and features in the cable management area152′. By covering at least a portion of the cable management area152′, the optical fibers233are prevented or held back from becoming entangled as the tray assembly14′ is rotated within the chassis12,302or inserted into the chassis12,302. By covering at least a portion of the cable management area152′, the fan-outs158′ and other components and features in the cable management area152′ are prevented from bumping against features and components of the chassis12,302as the tray assembly14′ is rotated within the chassis12,302or inserted into the chassis12,302. The cover250can serve as a guide to the optical fibers233and other optical fiber cables within and near the cable management area152′. The optical fibers233and other optical fiber cables within and near the cable management area152′ can be sandwiched between the cover250and the outer surface150′ of the second flange124′. An edge266of the cover250may be spaced from the adapter module190′ to allow connectors252of fiber optic cables254to be inserted and withdrawn from the adapter module190′ without removing the cover250. The cover250and the adapter module190′ may effectively keep uncovered portions256of the fiber optic cables254in position and prevent their tangling.

The cover250can include a clearance relief258(e.g., a hole, a recess, a slot) around or near the hub120. The cover250can include a clearance relief260(e.g., a hole, a recess, a slot) around or near the fan-outs158′. The cover250can include a plurality of fastener holes262for attaching the cover250to the second flange124′. The second flange124′ can include standoffs264for attaching the cover250to the second flange124′. The standoffs264can space the cover250from the second flange124′. The standoffs264can prevent the cover250from clamping the optical fibers233,254, the fan-outs158′, and other components and features in the cable management area152′ against the outer surface150′ of the second flange124′. The standoffs264can be threaded standoffs. Fasteners (not shown) can be inserted through the fasteners holes262and into the standoffs264and thereby attach the cover250to the second flange124′.

As depicted atFIGS.30-32, a panel268can be provided on the adapter module190′.FIGS.30and31show the panel268assembled and broken away to reveal the fiber optic cable232within the cable spool assembly62′.FIG.32shows the panel268separated from the adapter module190′. The panel268can serve as a place to affix labels270that relate to the adapter module190′. For example, indices that relate to or number individual fiber optic adapters194can be appropriately positioned on the panel268. The labels270can be pre-applied to or stamped on the panel268at a factory and/or can be applied by a service technician (e.g. as stickers). As depicted, the panel268is positioned below the fiber optic adapters194and covers a front portion of the cable spool assembly62′ and thereby covers a front portion of the fiber optic cable232that is within the cable spool assembly62′. The panel268can thereby give the adapter module190′ and the tray assembly14′ a cleaner appearance by hiding or obscuring the fiber optic cable232. The panel268can also protect the fiber optic cable232.

As depicted, the panel268includes a first tab272at a first end portion274and a second tab276at a second end portion278. Each of the tabs272,276includes a fastening feature280(e.g., a hole). The adapter module190′ includes a first tab282with a fastening feature284(e.g., a hole) and also includes a second tab286with a fastening feature288(e.g., a hole). In the depicted embodiment, a push-in fastener290is mounted in each of the holes280of the tabs272,276. The panel268can be removably mounted to the adapter module190′ by inserting the push-in fasteners290of each of the tabs272,276into their corresponding holes284,288. The push-in fasteners290may snap in and snap out of their corresponding holes284,288. The push-in fasteners290may be retained by the hole280.

Referring now toFIGS.35-37, a cable assembly350′ is shown. The cable assembly350′ includes the tray assembly14,14′, or14″ mounted to a first cable spool3521′. The first cable spool3521′ may be mounted to a second cable spool3522′. Additional cable spools352′ can be added in like manner, as needed. As with the similar cable assembly350, described above, the cable assembly350′ is adapted to provide a length of fiber optic cable353′ that is greater than the length that can fit around the cable spool assembly62,62′ of the tray assembly14,14′,14″. In the depicted embodiment, the cable spool352′ can hold a length of the fiber optic cable353′ that is generally equal to the lengths or range of lengths held by the cable spool352, described above.

The cable spool352′ can be manufactured of materials similar to the materials used in the cable spool352, described above. The cable spool352′ includes a drum354′, a first flange356′, and a second flange358′. The flanges356′,358′ can be made of cardboard. The drum354′, the first flange356′, and the second flange358′ are generally respectively similar in form and function to the drum354, the first flange356, and the second flange358, described above. The second flange358′ of the first cable spool3521′ may attach to the first flange356′ of the second cable spool3522′.

The tray assembly14,14′,14″ and the first cable spool3521′ of the cable assembly350′ are assembled similarly to the tray assembly14and the cable spool352of the cable assembly350, described above.

The flanges356′,358′ each include a notch366′ similar to the notch366, described above. The notch366′ allows the fiber optic cable353′ to pass from the drum3541′ to the drum3542′. As the fiber optic cable353′ passes from the drum3541′ to the drum3542′, a transition in cable radius is made. In particular, adjacent the transition, the cable radius on the drum3541′ is at or near a large radius or a maximum radius, and the cable radius on the drum3542′ is at or near a small radius or a minimum radius. Guiding features371of the notch366′ keep the transition snag-free.

To deploy the fiber optic cable353′ from the cable assembly350′, the cable assembly350′ can be positioned relative to the telecommunications mount similar to the positioning of the cable assembly350, described above. The fiber optic cable353′ is first paid out from the second cable spool3522′ (or the last cable spool352′). The fiber optic cable353′ is pulled from the cable spool3522′, which causes rotation of the cable assembly350′, including the tray assembly14,14′,14″, carried by the cable spool3521′. When the second cable spool3522′ is empty of cable353′, the cable353′ corresponding to the transition is paid out, over/through the guiding features371, followed by the cable353′ wrapped about the first cable spool3521′. The details of paying out the cable353′ from the first cable spool3521′ and the cable spool assembly62,62′ are similar to the paying out of cable353from the cable spool352and the cable spool assembly62, described above.

To facilitate unwinding and winding of the cable353′, the spindle/rotation structure370may be employed (seeFIG.35). The spindle structure370includes a base372and a rotation mount374. As depicted, the rotation mount374is a shaft. The cable assembly350′ preferably includes a bushing or bearing376adapted to rotatably mount over the shaft374. As depicted, the bearing376is positioned on the second flange358′. As depicted, the spindle structure370is positioned opposite the tray assembly14,14′,14″ about the cable assembly350′. In other embodiments, the spindle structure370is positioned adjacent the tray assembly14,14′,14″. The rotation mount374can mount to the bushing222of the tray assembly14,14′,14″ (e.g., within an inside diameter of the bushing222, as shown atFIG.22). To reduce rotational friction, anti-friction features378can be included on the second flange358′. The anti-friction features378may be made from Teflon® or other suitable material with a sufficiently low coefficient of friction. As depicted, the anti-friction features378may ride/glide on the base372. The anti-friction features378may provide stability to the cable assembly350′. The anti-friction features378may act as thrust bushings. Other thrust bushings (e.g. flange type) can also or alternatively be used.

The spindle/rotation structure370may be set on a floor, a cabinet, or other suitable structure when unwinding or winding the cable353′ from the cable spool352′. The spindle/rotation structure370may be reused.

The cable spools352′ are removed from the tray assembly14,14′,14″ after the cable353′ has been removed from them. The cable spools352′ and the tray assembly14,14′,14″ are respectively disposed of and installed similar to the cable spool352and the tray assembly14, discussed above.

The cable assembly350′ provides advantages in stocking, shipping, storing, and deploying the fiber optic cable353′. In particular, the cable assembly350′ can be factory pre-built and stocked in several discrete configurations of varying length. The pre-building can include applying terminations353c(e.g., connectors) to the fiber optic cable353′. Each of the pre-built cable assemblies350′ can be deployed to a range of installations with a range of length requirements for the fiber optic cable353′. In general, the minimum cable length installation that the cable assembly350′ could service would include a deployed cable length about equal to the length of the cable353′ initially wound on the cable spool(s)352′. In general, the maximum cable length installation that the cable assembly350′ could service would include a deployed cable length about equal to the length of the cable353′ initially wound on the cable spool(s)352′ plus the length of the cable353′ initially wound on the cable spool assembly62,62′. Installation lengths between the minimum and the maximum cable length installation could be serviced without applying the fiber optic terminations353cin the field. As a range of cable installation lengths can be serviced by a single cable assembly350′ part number, the cable assembly350′ can be factory pre-built. A few discrete cable assemblies350′ of different deployed cable length ranges can therefor service a wide variety of installations.

The cable assembly350′ allows post-installation flexibility. In particular, if a telecommunications component needs to be moved or the deployed cable353′ of the cable assembly350′ needs to be connected at a substantially different location, within the range of the cable353′ initially wound on the cable spool assembly62,62′, the fiber optic cable353′ can be taken in or paid out from the cable spool assembly62,62′.

A discrete length of the cable353′ is stored and deployed from the cable spool(s)352′. This discrete length can be roughly matched to a given installation. Preferably, the discrete length of the cable353′ from the cable spool(s)352′ is somewhat shorter than the total length of deployed cable353′ required at the given installation. A discrete length of the cable353′ is stored on the cable spool assembly62,62′. However, a variable length of this cable353′ can be deployed to exactly match (i.e., fine tune) the total length of the deployed cable353′ to the requirements of the given installation.

The cable assembly350′ is depicted atFIGS.35-37including the cable spool352′. In other embodiments, other spool assemblies may be used. For example, the spool assemblies disclosed at U.S. provisional patent application Ser. No. 61/370,070, filed Aug. 2, 2010, incorporated by reference above, can be included in certain embodiments. In still other embodiments, the cable spool352, described above, can be included.

Referring now toFIGS.38and39, a telecommunications assembly10′ is shown. The telecommunications assembly10′ is adapted for mounting to the telecommunications rack15(seeFIG.1). The telecommunications assembly10′ is similar to the telecommunications assembly10, described above, and includes a chassis12′, similar to the chassis12, and a tray assembly14″, similar to the tray assemblies14,14′, that removably mounts in the chassis12′. Similar to the chassis12, the chassis12′ includes a first opening52′ and a second opening54′ (seeFIG.40). As depicted, a cover22′ of the chassis12′ and a base16′ of the chassis12′ are adjacent the first opening52′ and the second opening54′ and are also adjacent an interior region50′ of the chassis12′. As depicted, the cover22′ is positioned opposite the base16′ about the interior region50′. The tray assembly14″ is adapted for insertion into the chassis12′ through either the first opening52′ or the second opening54′ of the chassis12′ and into the interior region50′. In the depicted embodiment, the first opening52′ is a front opening, and the second opening54′ is a back opening. In the depicted embodiment, the second opening54′ is oppositely disposed from the first opening52′.

As depicted, an access opening404is formed by the cover22′, and an access opening406is formed by the base16′. The access opening406can include a first region406aand a second region406b. The access openings404,406can be adjacent the first opening52′. In other embodiments, the access openings404,406can be separated from the first opening52′. The access opening404provides access to an adapter module190″ of a termination area154″. The adapter module190″ is similar to the adapter modules190and190′, described above, and the termination area154″ is similar to the termination areas154and154′, also described above. The access openings404,406allow fiber optic cables to be routed to the adapter module190″ and thereby allow the fiber optic cables to be connected to the fiber optic adapters194mounted in the adapter module190″. The access opening404allows the fiber optic cables to be routed adjacent and/or through the cover22′, and the access opening406allows the fiber optic cables to be routed adjacent and/or through the base16′. The fiber optic cables can thereby be routed to other areas about the telecommunications rack15. Thus, fiber optic cables can be routed to the adapter module190″ from above and/or below the telecommunications assembly10′.

In certain embodiments, the telecommunications assembly10′ includes a front cover plate320′. The front cover plate320′ is engaged to a hinge322′. In the depicted embodiment, the hinge322′ is connected between the front cover plate320′ the base16′. The hinge322′ can be similar in form and function to the hinge322, described above. In the depicted embodiment, the front cover plate320′ is adapted to pivot between an open position (shown atFIGS.38and39) and a closed position (shown atFIG.40). As depicted, when in the closed position, the front cover plate320′ extends between the cover22′ and the base16′ and substantially covers the interior region50′ from a front side. As depicted, when in the closed position, the front cover plate320′ substantially covers the first opening52′ from the front side. The front cover plate320′ can be held in the closed position by latches408. As depicted, the latches408can engages tabs410of the cover22′.

The front cover plate320′ can include labels270′. The labels270′ can be similar in form and function to the labels270, described above. As depicted, the labels270′ can be associated with individual fiber optic adapters194. As depicted, the labels270′ can be viewed when the front cover plate320′ is in the open position. As depicted, the front cover plate320′ does not cover the access openings404,406. A clip412of the front cover plate320′ can be used to hold the labels270′.

The telecommunications assembly10′ includes a panel380(i.e., a bracket and/or a cover). The panel380includes a first fastening location382and a second fastening location384. As depicted, the first fastening location382is adjacent a first end portion386of the panel380, and the second fastening location384is at or near a center portion388. The center portion388is positioned between the first end portion386and a second end portion390. The panel380can be mounted to the telecommunications assembly10′. In particular, the first fastening location382is joined to an attachment location392of the tray assembly14″, and the second fastening location384is joined to an attachment location394of the tray assembly14″. In the depicted embodiment, the attachment location394is located on the adapter module190″ of the termination area154″. In the depicted embodiment the fasteners214′, described above, are used at the fastening locations382,384.

The mounting of the panel380to the telecommunications assembly10′ can achieve one or more functions. In particular, a first function is providing a locking mechanism adapted to prevent a cable spool assembly62″ of the tray assembly14″, with the attachment location394, and a tray60″ of the tray assembly14″, with the attachment location392, from rotating relative to each other. A second function is providing an electrical connection between the attachment location392of the tray60″ and the attachment location394of the cable spool assembly62″, and thus electrically ground the cable spool assembly62″ and/or the adapter module190″. A third function is to provide stops396,398that are adapted to prevent the cable spool assembly62″ and the tray60″ from rotating relative to each other. A fourth function is to provide a mounting area400for mounting labels270″. The labels270″ can be similar in form and function to the labels270,270′ described above. A fifth function is to provide a cover402that covers the fiber optic cable232or a portion of the fiber optic cable232within the cable spool assembly62″.

As depicted, the panel380has an “L” shaped configuration extending from the first end portion386to the second end portion390. As depicted the first fastening location382, the second fastening location384, and the stops396,398can be formed from tabs that extend from the “L” shaped extrusion.

The panel380may be used in applications with restricted access to the rear of the telecommunications assembly10′ (e.g., in outdoor applications). For example, in applications where access to the second opening54′ is restricted and/or blocked, the panel380, which can be mounted through the first opening52′, can be used to lock and/or ground the cable spool assembly62″ and thereby avoid using a lock and/or a grounding member at or near the second opening54′.

Referring now toFIG.40, a telecommunications assembly10″ is shown. As depicted, the telecommunications assembly10″ is a reconfiguration of the telecommunications assembly10′. In particular, a locking mechanism240′ is included. The locking mechanism240′ is similar to the locking mechanism240, described above. The locking mechanism240′ is adapted to prevent the cable spool assembly62″ from rotating relative to the tray60″. In one embodiment, the locking mechanism240′ provides an electrical connection between the tray60″ and the cable spool assembly62″ so as to serve as a ground. The locking mechanism240′ may be used in applications with access to the second opening54′ and/or the rear of the telecommunications assembly10″ (e.g., in indoor applications). The telecommunications assembly10″ may or may not include the panel380.

The present disclosure describes components and embodiments that are similar to other components and embodiments. The various features and components of one embodiment may also be included in other embodiments, where appropriate.

Various modifications and alterations of this disclosure will become apparent to those skilled in the art without departing from the scope and spirit of this disclosure, and it should be understood that the scope of this disclosure is not to be unduly limited to the illustrative embodiments set forth herein.