Source: https://patents.google.com/patent/KR20080094830A/en
Timestamp: 2020-01-23 10:30:40
Document Index: 234993951

Matched Legal Cases: ['Application No. 10', 'Application No. 11', 'Application No. 11', 'Application No. 11', 'Application No. 10', 'Application No. 10', 'Application No. 10', 'Application No. 11']

KR20080094830A - Fiber distribution hub with swing frame and modular termination panels - Google Patents
KR20080094830A
KR20080094830A KR1020087022476A KR20087022476A KR20080094830A KR 20080094830 A KR20080094830 A KR 20080094830A KR 1020087022476 A KR1020087022476 A KR 1020087022476A KR 20087022476 A KR20087022476 A KR 20087022476A KR 20080094830 A KR20080094830 A KR 20080094830A
KR1020087022476A
KR101397280B1 (en
크레이그 엠 스탠디쉬
조슈아 에이 자벨
매튜 디 패리스
2006-02-13 Priority to US11/354,286 priority Critical
2006-02-13 Priority to US11/354,286 priority patent/US7720343B2/en
2007-02-07 Application filed by 에이디씨 텔레커뮤니케이션스 인코포레이티드 filed Critical 에이디씨 텔레커뮤니케이션스 인코포레이티드
2008-10-24 Publication of KR20080094830A publication Critical patent/KR20080094830A/en
2014-05-20 Publication of KR101397280B1 publication Critical patent/KR101397280B1/en
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fiber distribution hub having a swing frame and a modular terminal panel.
The present invention relates to a fiber distribution hub and terminal module having a swing frame and a modular terminal panel.
Passive optical networks are becoming increasingly prevalent as service providers seek to deliver high bandwidth communication capabilities to their customers. Passive optical networks are desirable for delivering high-speed communication data because they do not use active electronic devices such as amplifiers and repeaters between the central office and the subscriber terminals. The absence of active electronics can reduce network complexity and / or cost and increase network reliability.
Figure 1 shows a network 100 utilizing passive fiber optic lines. As shown, the network 100 includes a central office 101 connecting a plurality of end subscribers 105 (also referred to herein as end users 105). The central office 101 may additionally connect to a larger network such as the Internet (not shown) and the Public Switched Telephone Network (PSTN). The network 100 may also include one or more optical splitters (e.g., one-to-eight splitters, one-to-sixteen splitters, or one-to -32 splitters) that produce a plurality of discrete fibers leading to an end- Fiber distribution hub (FDH) &lt; RTI ID = 0.0 &gt; 103 &lt; / RTI &gt; The various lines of the network 100 may be in the air or may be contained within an underground conduit.
The portion of the network 100 that is closest to the central office 101 is generally referred to as an F1 region called "provider fiber" from the central office 101. The portion of the network 100 closest to the end user 105 may be referred to as the F2 region of the network 100. [ The network 100 includes a plurality of breakout locations 102 where the branch cables are separated from the main cable lines. The branch cable is often connected to a drop terminal 104 that includes a connector interface for facilitating coupling of the fibers of the branch cable to a plurality of other subscriber locations 105.
The splitter used in the FDH 103 may accommodate a supplier cable F1 having a plurality of fibers and may be formed from the same number of individual distribution fibers, for example, 216 to 432 end- . In typical applications, an optical splitter is pre-packaged in an optical splitter module housing, and a splitter output extending from the module is provided in the pigtail. The splitter output pigtails are typically mated with, for example, SC, LC or LX5 connectors. The optical splitter module includes a protective packaging for the optical splitter element in the housing, thereby providing easy manipulation of the fragile splitter element. With this modular approach, it is possible to add as many splitter modules to the FDH 103 as desired.
Certain aspects disclosed are directed to fiber optic cable systems.
In an exemplary system, the fiber optic system includes at least one fiber distribution hub (FDH) that provides an interface between the central office and the subscriber.
Certain aspects of the invention relate to cable routing.
Another aspect of the invention relates to improved accessibility and scalability through the use of modular subscriber terminal elements and modular splitter.
Additional aspects of the various inventions will be described in the following detailed description. Aspects of the present invention may relate to a combination of individual characteristics and characteristics. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not intended to limit the scope of the invention disclosed herein.
1 is a diagram illustrating a passive fiber optical network;
Figure 2a is a front perspective view showing an example of a fiber distribution hub having a cabinet in which the front door is in a closed position;
Figure 2b is a front perspective view of the fiber distribution hub of Figure 2a with the cabinet in the open position of the front door.
Figure 2c is a front perspective view of the fiber distribution hub of Figure 2a with the swing frame turned out of the cabinet.
Figure 3 is a schematic flow diagram illustrating an embodiment of a cable path design of the fiber distribution hub of Figure 2a.
Figure 4 is a front perspective view of the swing frame of Figure 2c isolated from the fiber distribution hub.
Figure 5 is a front view of the swing frame of Figure 4;
6 is a right side view of the swing frame of Fig.
7 is a top view of the swing frame of Fig.
Figures 8a-8c illustrate an embodiment of a splitter module of the dispense hub of Figure 2a.
Fig. 9 is a view showing an example of a splitter module having eight output fibers including a connection end fixed to a storage module; Fig.
10 is an illustration of an example of a cable / fiber path from a splitter module mounted to a swing frame to a storage module mounted to a swing frame;
11 is a view showing an example of a cable / fiber path from a splitter module mounted on a swing frame to a terminal module mounted on a swing frame;
Figures 12a and 12b are front and rear perspective views of an example of a terminal module of the dispensing hub of Figure 2a;
Figure 13 is a rear perspective view of the swing frame of Figure 4;
Figure 14 is another perspective view of the swing frame of Figure 4;
Figure 15 is a left side view of the swing frame of Figure 4;
16 is a rear view of a swing frame including an example of an interface device and a cable management device mounted on the rear side of the swing frame;
17 is a rear perspective view showing an example of a configuration of an interface device and a cable management device on a swing frame;
18 is a rear perspective view showing another example of the configuration of the interface device and the cable management device;
Fig. 19 is a rear perspective view showing still another example of the configuration of the interface device and the cable management device; Fig.
2 through 7, an example of a fiber distribution hub (FDH) 200 according to the principles of the present invention is shown. The FDH 200 includes a cabinet 201 that houses internal components. The cabinet 201 includes an opening through which the supplier cable (or F1 cable, for example) 700 and the subscriber cable 708 enter and exit the cabinet 201 (see FIG. The swing frame 300 is pivotably mounted on the hinge 355 inside the cabinet 201. [ The swing frame 300 includes a partition 301 dividing the swing frame 300 into a front portion 302 (see FIG. 4) and a rear portion 304 (see FIG. 2C). The partition wall 301 includes a main panel 310 having a terminal area 311 and a storage area 313. Generally, one or more terminal modules 400 (see FIGS. 13A and 13B) are provided in the terminal area 311 and one or more storage modules 600 (see FIG. 9) are provided in the storage area 313 have. In some embodiments, the partition 301 also includes a sub-panel 315 positioned adjacent to the main panel 310 and configured for cable management. Within the rear portion of the swing frame 300, one or more supplier cable interfaces 800 may be located. At the top of the swing frame 300 there is one or more splitter module housings 322 that receive one or more splitter modules 500.
3 is a schematic flow chart showing an example of a cable path for the FDH 200. As shown in Fig. The FDH 200 generally manages the connection at the terminal panel between the incoming fiber and the outgoing fiber in an Outside Plant (OSP) environment. The term "connection" between fibers is used here to include both direct and indirect connections. Examples of inflow fibers include supplier cable fibers that enter the cabinet and intermediate fibers that connect the supplier cable fibers to the terminal panel (e.g., connecting pigtails extending from a splitter and patching fibers / jumpers). Examples of outflow fibers include subscriber cable fibers exiting the cabinet and any intermediate fibers connecting the subscriber cable fibers to the terminal panels. The FDH 200 provides an interconnect interface for optical transmission signals at network locations that require access and reconfiguration during operation. For example, as noted above, the FDH 200 splits the supplier cable and connects the split supplier cable to a distribution cable that is sent to the subscriber location. In addition, the FDH 200 is designed to accommodate a range of different sizes and fiber counts and to maintain factory facilities for pigtails, fan-outs, and splitters.
As shown in Figure 3, the supplier cable 700 first passes through the cabinet 201 (e.g., through the back or bottom of the cabinet 201, as shown in Figure 2c) into the FDH 200 I go in. In certain embodiments, the fibers of supplier cable 700 may comprise ribbon fibers. An example of a supplier cable 700 may include 12 to 48 individual fibers connected to a service provider central station 101. In some embodiments, after entering the cabinet 201, the fibers of the supplier cable 700 lead to a supplier cable interface 800 (e.g., a fiber optic adapter module, a splice tray, etc.). In the supplier cable interface 800, one or more fibers of the supplier cable 700 are connected to respective splitter input fibers 702, respectively. The splitter input fibers 702 lead from the supplier cable interface 800 to the splitter module housing 322. In the splitter module housing 322, the splitter input fibers 702 are connected to an individual splitter module 500, wherein the splitter input fibers 702 are each divided into multiple pigtails 704 having connection ends. In another embodiment, however, the fibers of the supplier cable 700 are connected and directly connected to the splitter module 500, thereby avoiding or eliminating the need for an intermediate supplier cable interface 800.
The connecting end 706 may be temporarily stored in the storage module 600 mounted in the storage area 313 of the swing frame 300 if the pigtail 704 is not in use. The pigtail 704 leads from the splitter module 500 to the terminal module 400 provided in the terminal area 311 of the swing frame 300 when the pigtail 704 is required for use. In the terminal module 400, the pigtail 704 is connected to the fibers of the distribution cable 708. The terminal panel is the dividing line between the inflow panel and the outflow panel. A typical distribution cable 708 comprises a plurality of fibers (e.g., 144, 216, or 432 fibers) that form the F2 portion of the network (see FIG. 1) and typically extend from the FDH 200 to the subscriber location 709 .
In some embodiments, one or more fibers of the supplier cable 700 are not connected to any splitter module 500. Instead, the fibers of this supplier cable 700 are connected to the penetrating fibers 712 having a connecting end 714. The penetrating fibers 712 are not connected to the splitter module 500, but are connected to the terminal module 400. By not splitting the fibers 712, a stronger signal can be transmitted to the subscriber. The connecting end 714 of the through fiber 712 may be stored in the storage area 313 if not in use.
2A to 2C, the cabinet 201 of the FDH 200 includes an upper panel 202, a floor panel 203, a right panel 204, a left panel 206, a rear panel 205, And includes at least one front door. In some embodiments, the at least one front door includes a right door 210 and a left door 212. In one embodiment, the front doors 210, 212 include a lock 211. [ One or more front doors are pivotally mounted to the cabinet 201 using hinges 214, 216 to facilitate access to elements mounted within the cabinet 201.
In general, the cabinet 201 of the FDH 200 is configured to protect internal components against rain, wind, dust, rodents, and other contaminants. However, the cabinet 201 maintains a relatively light weight for easy installation and maintains breathability to prevent accumulation of moisture in the apparatus. In some embodiments, a heavy powder coat finish aluminum construction is provided for corrosion resistance. In one embodiment, the cabinet 201 is made from medium gauge aluminum and has a NEMA-4X rating. However, in other embodiments, other materials may be used.
According to an exemplary embodiment, the FDH 200 is provided within a pole mount or pedestal mount. For example, as shown in FIG. 2, a loop 218 may be provided on the cabinet 201 to easily arrange the cabinet 201 at a desired position. Loop 218 can be used to position the cabinet using a crane. Particularly, the crane can send down the cabinet 201 to the underground area. In some embodiments, the loop 218 may be removable or may be adjusted so as not to protrude from the upper cabinet panel 202.
2B to 2C, the swing frame 300 of the FDH 200 includes an upper panel 320, a floor panel 330, a right panel 340, and a left panel 341. A hinge mounting strip 350 is located on the left side 341 of the swing frame 300. 4, the partition wall 301 further includes a connection panel 319 connecting the main panel 310 to the hinge mounting strip 350. As shown in Fig. 4, a portion 325 of the sub-panel 315 extends upwardly past the upper panel 320 of the swing frame 300. As shown in FIG. The partition wall 301 extends vertically between the upper panel 320 and the floor panel 330 and extends laterally between the right panel 340 and the left panel 341.
In some embodiments, the hinge mounting strip 350 of the swing frame 300 is mounted to the cabinet 201 of the FDH 200 using one or more hinges 355. The hinge 355 may include a terminal module 400, a storage module 600, a supplier (e.g., a controller) The entire swing frame 300 including the cable interface 800 and the splitter module 500 can be moved out of the front door 210 of the cabinet 201. [ The right panel 340 of the swing frame 300 is moved away from the inner space of the cabinet 201 by rotating the swing frame 300 out of the cabinet 201. [ In some example embodiments, the swing frame 300 may be rotated by more than 90 degrees out of the cabinet 201.
In some embodiments, the hinges 355 of the swing frame 300 are positioned to provide a single bending point for the fiber cable leading to the swing frame 300. This hinge point is configured to control fiber bending. In particular, the hinge 355 and the cable management device, which will be discussed in greater detail herein, are designed such that the manufacturing recommended bend radius can be maintained when the swing frame 300 is open or closed. In one embodiment, the cabinet 201 may be configured such that in a factory, a cable bundle is arranged around the hinges 355. The preconfiguration of the cabinet 201 reduces the possibility of improper cable installation.
As shown in FIG. 2C, when the swing frame 300 is in the open position, the elements of the rear portion 304 of the swing frame 300 are accessible. For example, the rear side of the main panel 310 and the rear side of the sub panel 315 are accessible. The splitter module 500 (see FIG. 4) located in the splitter module housing 322 is accessible through the open top of the swing frame 300 when the splitter module 500 moves out of the cabinet 201. Conversely, when the swing frame 300 is in the closed position (see FIG. 2B), only the elements of the front portion 302 of the swing frame 300 are readily accessible.
In an exemplary embodiment, the swing frame 300 includes a release latch that locks the swing frame 300 in the closed position within the cabinet 201 of the FDH 200 until the latch is actuated. Once the latch is actuated, the swing frame 300 may move out of the cabinet 201. In addition, a rotation lock member (not shown) may be mounted to the rear portion 304 of the swing frame 300 to secure the swing frame 300 in the open position.
4 to 5, the storage area 313 of the swing frame 300 is located below the terminal area 311. [ However, in other embodiments, the storage area 313 may be adjacent to the top of the terminal area 311 or the terminal area. Generally, the terminal area 311 defines one or more rectangular openings 312 through which the adapter 450 extends from the terminal module 400 (see Figs. 13a-b). The terminal module 400 is described in more detail herein. In the embodiment shown in FIG. 4, the terminal area 311 includes two rows of rectangular openings 312, each row including twelve elongated slots. The strip 309 provides a surface area for separating the rectangular openings 312 of each row and pasting label information (e.g., a connector name). Storage area 313 also defines one or more openings 314 in which storage module 600 (see FIG. 9) is mounted. The storage module 600 is described in more detail herein.
The partition 301 is bisected by the front panel 331 (see FIG. 4) and the rear panel 336 (see FIGS. 2c and 14). Generally, the front portion 331 of the bottom panel 330 protrudes forward from the partition wall 301. In some embodiments, the front portion 331 is further divided into a first front portion 332 and a second front portion 334. Each front portion 332, 334 includes flanges 333, 335 projecting substantially perpendicular to the bottom panel 330. The front portion 331 of the bottom panel 330 thereby forms a trough that is configured to retain the slack or excess fiber from the storage region 313 or sub-panel 315. The edge 337 of the first front portion 332 is inclined so that the swing frame 300 can be opened and rotated without being disturbed from the trough.
4 and 6, the partition wall divides the side panel 340 into a front flange 342 and a rear flange 344, respectively. The front flange 342 extends forward from the sub panel 315 and the rear flange 344 extends rearward from the sub panel 315. The rear flange 344 extends from the bottom panel 330 toward the bending limiter 962 extending from the top panel 320. The front flange 342 extends from the bottom panel 330 through the top panel 320 to the protruding portion 325 of the subpanel 315. In some embodiments, the front flange 342 includes a forward portion 344 substantially parallel to the rear flange 344 and an inclined portion 344 extending between the projecting portion 325 and the forward portion 344 of the sub- Portion 343.
As best shown in FIG. 7, the upper panel 320 of the swing frame 300 is substantially rectangular. The top panel 320 includes a front edge 326 and a rear edge 327. [ The flanges 323 and 324 (see Fig. 4) project upwardly from the edges 326 and 327, respectively. The top panel 320 also has a first end 328 near the left side 341 and an opposite end 329 near the right side panel 340. The bending radius limiter 940 extends upwardly from the first end 328. In some embodiments, a portion of the end portion 329 of the top panel 320 defines the width of the channel B with the front flange 342 of the right panel 340. The portion of the end 329 defining the channel B ends before reaching the remainder of the end 329. The depth of the channel B extends from the sub panel 315 to the flange 335 of the second front portion 33 of the floor panel 330.
The splitter module housing 322 of the FDH 200 is located on the top panel 320 near the first end 328. The splitter module housing 322 serves to protect, organize and fix the splitter module 500 of the FDH 200. The splitter module housing 322 can be configured in a variety of sizes to accommodate a variable number of splitter modules 500. The splitter module housing 322 is generally rectangular and defines one or more locations within an open interior of a size for accommodating one or more splitter modules 500. To accommodate the splitter module 500, the module housing 322 includes a structure for supporting / securing the splitter module 500. In an exemplary embodiment, the splitter module 500 is designed to snap fit within the splitter module housing 322. In one embodiment, the splitter module 500 is housed within the splitter module housing 322 from front to back (i.e., from the side facing the end 329 to the side facing the end 328). The module housing 322 is also configured to allow the splitter module 500 to receive input fibers on one end of the splitter module 500 and to receive the input fibers on the opposite side of the splitter module 500, Like the pigtail 704 in Fig. 3, is configured to output a plurality of fibers from the end.
8A-8C, one type of splitter module 500 that may be mounted within the splitter module housing 322 is a splitter having an integrated connector. FIG. 8A is a left side view of such a splitter module 500. FIG. The splitter module 500 includes a housing 505 having at least one protective boot 510 protruding forward and at least one integrated connector 520 protruding rearward. In the illustrated embodiment, the two boots 510 protrude from the front, and the two integrated connectors 520 project backward from the splitter housing 505. In one exemplary embodiment (not shown), each splitter has four integrated connectors 520. In some embodiments, the handle 540 also protrudes from the front end of the splitter housing 505. 8B is an exploded view of the splitter module 500 of FIG. 8A showing the integrated element of the splitter module 500. FIG.
8C shows a cross-sectional view of the splitter module 500 of FIG. 7A inserted into the splitter module housing 322. FIG. The adapter assembly 530 is secured to the splitter module housing 322 using fasteners 536. [ In one embodiment, the adapter assembly 530 is mounted on the rear side of the splitter module housing 322. The adapter assembly 530 is configured to receive the integrated connector 520 of the splitter module 500 when the splitter module 500 is inserted into the splitter module housing 322. [ As shown, the adapter assembly 530 is further configured to receive the opposite connector associated with the supplier cable 700. In some embodiments, the adapter assembly 530 receives a connector 703 that terminates the splitter input fibers 702. In another embodiment, the adapter assembly 530 receives a connector 701 that terminates the supplier cable 700 itself. In this way, the supplier cable 700 can be easily connected to the splitter module 500.
Another embodiment of the splitter module 500 does not include the unified connector 520. In such an embodiment, the adapter assembly 530 is not mounted to the splitter module housing 322 and the supplier cable 700 can not be directly connected into the splitter module 500. Instead, an input pigtail (not shown) passes through the splitter housing 505 and enters the splitter module 500. The opposite end of the input pigtail may be connectorized or non-connectorized. When the end 701 is terminated at a connector (not shown), the input fibers 702 are associated with the supplier cable 700 using the adapter module 801 (see FIG. 18). If the end portion 701 is not connectorized, the input fibers 702 are bonded to the supplier cable 700 using the junction tray 808 (see FIG. 19).
Typically, each splitter module 500 receives one to four fibers and outputs two to sixteen fibers 704 for each input fiber. In one exemplary embodiment, four input fibers 702 enter the splitter module 500, and 32 pigtail fibers 704 exit the splitter module 500. Additional information regarding the splitter module 500 can be found in a US patent application entitled " Fiber Optic Splitter Module ", attorney docket number 2316.2314US01, to which reference will be made. Additional information on other types of splitter modules may be found in U.S. Patent Application No. 10 / 980,978, entitled " System Including Fiber Optic Module and Back Connector, "filed November 3, 2004, U.S. Patent Application No. 11 / 138,063, "Fiber Optic Splitter Module", U.S. Patent Application No. 11 / 215,837, filed August 29, 2005, entitled "Optical Fiber Splitter Module with Connector Connection," and U.S. Patent Application No. 11 / 321,696, filed December 28, 2005, Splitter Module ", which is incorporated herein by reference.
Referring now to Figures 9-10, the splitter module 500 and storage module 600 are incrementally added to the swing frame 300. Figure 9 shows a splitter module 500 having a plurality of connectorized pigtails 704 exiting the protective boot 510 on the splitter module 500. The connectorized pigtail 704 is typically stored in one or more storage modules 600 before being installed on the swing frame 300. In some embodiments, the connector 706 of each pigtail 704 is secured within the storage module 600 before the splitter module 500 leaves the factory. Typically, the connectorized pigtail 704 of each splitter module 500 leads to four storage modules 600, each holding eight connectors.
The storage module 600 includes a body 610 having a front side 602 and a rear side 604. The body 610 is configured to hold one or more fiber connectors 706. Typically, body 610 is configured to hold about eight connectors 706. In some embodiments, body 610 is arranged to retain fiber connector 706 in a single thermal configuration. In another embodiment, the body 610 can be arranged to hold a connector 706 in a square pattern or any other desired configuration. Additional information regarding the storage module 600 may be found in "Fiber Optic Connector Holter and Method ", U.S. Patent Application No. 10 / 610,325, filed June 30, 2003, U.S. Patent Application No. 10 / 613,764, , And U.S. Patent Application No. 10 / 871,555, filed June 18, 2004, entitled " Multiposition Fiber Optic Connector Holder and Method ", to which reference will be made.
In some embodiments, the body 610 is designed to snap into one of the openings 314 defined within the storage region 313 of the main panel 310. [ The openings 314 may be arranged in any desired configuration within the storage area 313 of the main panel 310. [ In the example shown in FIG. 10, the storage area 313 of the main panel 310 defines nine openings 314 in a rectangular pattern. Each opening 314 is configured to receive a storage module body 610 arranged to hold eight connecting ends 706 in series.
10, when the splitter module 500 is received in the splitter module housing 322 during installation, the corresponding storage module 600 is received on the storage area 313 of the main panel 310, do. To facilitate viewing, only one splitter 500 with one pigtail 704 and one storage module 600 is shown. The pigtail 704 extending from the splitter module 500 to the storage module 600 is passed from the protective boot 510 across the top panel 320 to the channel B on the front side of the sub- And then traverses the bottom panel 330 of the swing frame 300.
To achieve this path, the top panel 320 and sub-panel 315 include a cable management device. The cable management device on the top panel 320 includes a first spool 952 located between the splitter housing 322 and the bending radius limiter 962 and a second spool 952 located between the bending limiter 940 and the front flange 342. In some embodiments, And a second spool 954 positioned in the second spool 954. The pigtail 704 from the splitter module 500 is first wound around the first spool 952 and then wound around the second spool 954.
A bending radius limiter 964 having a tab 965 and extending downwardly from the top panel 320 partially defines the channel B. [ A portion of the paytail 704 from the second spool 954 passes into the channel B through the bending radius limiter 964. In some embodiments, the partial fiber spool 966 is mounted to extend from the protruding portion 325 of the sub-panel 315 and also the fibers are directed into the channel B. [ Some fibers 704 may lead into the channel B past the partial spool 966 instead of the flex limiter 964 to avoid excessive weight and entanglement of the fibers 704. Extra slack can be processed by causing the pigtail 704 to extend above the spool 966 instead of the flex limiter 964. [ The flexure limiter 968 may also be mounted on the protruding portion 325 of the sub-panel 315 to direct the fibers to the partial spool 966.
The front of the sub-panel 315 includes one or more partial spool 970 rows and one or more radial limiter 980 rows. In one exemplary embodiment, the partial spool 970 is oriented such that the fibers underlying the channel B are at least partially wrapped around the partial spool 970. The fibers can be transferred from the partial spool 970 to the storage module 600 along the floor panel 330 or to the terminal module 400 through the radius limiter 980. [ The limiter 980 is oriented so that the fibers extending from the partial spool 970 can be delivered to the terminal module 400 without excessive bending.
11, if a pigtail 704 held within the storage module 600 is to be connected to the subscriber distribution cable 708, the corresponding connector 706 is removed from the storage module 600, And delivered to the appropriate adapter 450 on the terminal module 400. During this transfer process, the fibers need to be rewound around different partial spools 970, such as partial spools 972, to reach the adapter 450. The fibers may extend from the partial spool 972 around the appropriate limiter 980 to avoid excessive flexure before reaching the adapter 450. [ In some embodiments, the fibers may also be fed through support fingers 990 extending from the terminal area 311 of the main panel 310 prior to connection into the adapter 450. If all of the fibers 704 secured in the original storage module 600 are routed to the subscriber terminal module 400 then an empty storage module 600 to create a space for the new splitter module 500 and the new storage module 600 ) Can be removed.
Referring now to FIGS. 12A-12B, as time passes and the number of subscribers increases, the user may add the terminal module 400 to the swing frame 300. FIG. 12A and 12B show an example of the terminal module 400. FIG. The terminal module 400 includes terminal legs 410 and management legs 420 that are configured in a substantially L-shape. In some embodiments, the connection area 430 connects the terminal legs 410 to the management legs 420. In another embodiment, the connection area 430 is monolithically formed with the terminal leg 410 or the management leg 420. In another embodiment, the terminal leg 410, the management leg 420, and the connection region 430 are integrally formed (e.g., made of a single piece of bendable metal sheet).
In some embodiments, the front side (shown in FIG. 12B) of the terminal leg 410 of the terminal module 400 is mounted on the rear side of the main panel 310. In one embodiment, the terminal leg 410 is mounted to the main panel 310 using a screw 417. However, in other embodiments, other fasteners may be used to connect the terminal module 400 to the main panel 310, such as bolts, rivets, nails, and other devices. In another embodiment, the terminal module 400 may be attached to the main panel 310 using an adhesive.
Each terminal module 400 includes one or more rows of fiber adapters 450 for connecting the fibers of the master cable 700 to the fibers of the distribution cable 708. Each adapter 450 has a forward end 452 and a rearward end 454. The front end 452 of each adapter 450 includes a connector 714 of the fibers 712 associated with the main line 700 or a connector 706 of the fibers 704 divided from the main line 700 . The rear end 454 of each adapter 450 is configured to retain the connector 710 of the fibers of the distribution cable 708. The connector 706 enters the front end portion 452 of the adapter 450 from the front side of the main panel 310 and the connector 710 of the distribution cable 708 contacts the adapter 450 from the rear side of the main panel 310. [ The adapter 450 protrudes through the terminal leg 410 so that the adapter 450 is inserted.
In the depicted embodiment, each module 400 includes a horizontal row of six adapters cooperating to define two parallel banks of adapters. When the module 400 is mounted to the main panel 310 the front side of the leg 410 is adjacent to the rear side and the row of adapters 450 passes through the corresponding horizontal slot 314 defined by the main panel 310 Projecting forward.
The management leg 420 extends rearwardly from the terminal leg 410. The management leg 420 includes an appropriate number of fan-outs 424 to receive the adapter 450 on the module 400. For example, in one embodiment, the terminal leg 410 of the module 400 includes six rows of adapters 450, each row having twelve adapters 450, and the management leg 420 includes six And a 12: 1 fanout 424. Where a 12: 1 fanout is used to mean a fanout configured to accommodate twelve optical fibers and output a single cable ribbon containing twelve fibers. In other embodiments, nine 8: 1 fanouts or three 24: 1 fanouts may be provided instead of a 12: 1 fanout. In another embodiment, the fan-out can be used to up jack up the fibers.
In some embodiments, the terminal module 400 may be pre-cabled in the factory to include a connectorized distribution cable 708 coupled to each adapter 450. A dust cap 453 is generally provided on the forward end 452 to protect the terminated distribution fibers 708 from dust, dirt and other contaminants. The connector 710 of each dispense cable 708 is mounted within the rear end 454 of the adapter 450 and the dispense cable 708 is mounted from the connector 710 onto the management leg 420 of the terminal module 400 To the fan out 424. In yet another embodiment, the terminal module 400 is not pre-cabled, and a dust cap 455 is also provided on the rear end 454 to protect the adapter 450.
In some embodiments, the management leg 420 of the terminal module 400 also includes one or more cable management devices 425 to manage the excess fiber length of the distribution cable 708. Generally, in such a system, the fibers 708 first lead to the cable management device 425 and then to the fanout 424. Examples of cable management devices 425 include fiber spools, one or more radius bending limiters, one or more fiber clips, and other such devices. In the illustrated example, the management leg 420 includes a fiber spool 426 formed from two radial flexure limiters. Each radial flexure limiter includes a flange 427 for retaining the fibers on the spool 426. In some embodiments, one or more fiber cable clips 428 for retaining the fiber cable may have a constant spacing between the radial flexure limiters of the spool 426.
Referring now to Figure 13, the management leg 420 of the terminal module 400 includes an opening 422 through which the fibers extend from the cable management device 425 to the fanout 424. The ribbon fibers exit the fanout 424 and lead to a cabinet fanout (not shown) or other cable interface device. In another embodiment, the fanout 424 is provided on the same side as the cable management device 425 of the management leg 420. In such an embodiment, the ribbon fibers extend from fanout 424 through opening 422 to a cabinet fanout. The cabinet fan out is mounted inside the cabinet 201 and is not attached to the swing frame 300. The cabinet fanout can be used to reduce the ribbon fibers to a single jacketed stub cable exiting the FDH 200. The stub cable is divided into subscriber distribution cables outside the FDH 200. In various embodiments, the length of the stub cable is in the range of about 25 feet to about 300 feet. In another embodiment, the distribution cable 708 is split into or otherwise connected to the fiber 708 into the cabinet 201. [
Referring now to FIG. 14, the rear portion 304 of the swing frame 300 defines an open chamber suitable for receiving one or more terminal modules 400. The opening chamber is defined by a partition wall 301, an upper panel 320, a floor panel 330 and a side panel 340. 14 is a rear perspective view of four terminal modules 400 mounted in the opening chamber. The adapter 450 has been removed for ease of viewing. In another embodiment, any desired number of terminal modules 400 may be mounted to the swing frame 300. The terminal module 400 is configured to be mounted on the rear side of the terminal area 311 of the main panel 310.
15 shows a left side view of a swing frame 300 on which four terminal modules 400 are mounted. The plurality of terminal modules 400 are mounted on the rear side of the main panel 310 and the management legs 420 of the terminal modules 400 form partial side panels facing the side panels 340. In some embodiments, the management legs 420 of the module 400 are fixed to each other or to the swing frame 300. In another embodiment shown in FIG. 15, the module 400 is fixed to the swing frame 300 only at the terminal legs 410 and the management legs 420 are free to float.
Referring now to Figures 16-19, swing frame 300 includes a different interfacing device 800 (see Figure 3) to create a plurality of fiber paths between the incoming supplier cable 700 and the distribution cable 708, And a cable management device. The interface device 800 and the management device used in the special configuration depend on whether it is desirable to divide the supplier cable 700 and what type of splitter module 500 is used.
In some embodiments, the supplier cable 700 is connected to one or more splitter input fibers 702. In such an embodiment, the first end 701 of the splitter input fiber 702 is connectorized. In another embodiment, the first end 701 is not connectorized. The opposite end 703 of the input fiber 702 may be connected to or integrated with the integrated connector 520 on the splitter module 500, such as when using the splitter module depicted in Figures 8a-8c, can do. However, in another embodiment, the supplier cable 700 has a connector configured to interface with the integrated connector 520 of the splitter module 500.
16 is a rear view of a swing frame 300 suitable for connecting the supplier cable 700 and the splitter module 500. [ To achieve this interface, a cable management device is arranged according to configuration C1. In configuration C1, a cable storage spool 922 and one or more partial storage spools 924 are mounted to the side panels 340 of the swing frame 300. The fan-out device 926 is mounted in the vicinity of the spools 922, 924. The radius limiter 936 is mounted from the sub-panel near the edge formed by the top panel 320 and the side panel 340. A support finger 932 protruding downwardly from the top panel 320 forms a path A through which the fibers can extend from one end 329 to the other end 328 of the top panel 320. In another embodiment, the support fingers 932 include a multiple fork clip 934 having two or more support fingers 932 extending in different directions. In one example embodiment, the multiple clip 934 includes four support fingers 932 that are positioned orthogonally to each other. Any excess fiber length can be processed by wrapping the pigtail 702 around the multiple clip 934. A limiter 940 with a tab 945 extends from the top panel.
To connect the supplier cable 700 to the splitter module 500, the cable 700 first goes around the spools 922,924 and then to the fan-out device 926. [ The fan-out device 926 separates the fibers of the supplier cable 700 into separate input fibers. Any excess length of the individual input fibers of the supplier cable 700 is capable of winding the fibers around the spools 922, 924 and storing them. The fibers of the supplier cable 700 then extend around the limiter 936 and project downwardly from the top panel 320 along the path A using the supporting fingers 932. The supplier cable 700 is then connected directly into the one or more adapter assemblies 530 that are bent around the limiter 940 extending from the top panel 320 and secured to the splitter module housing 322. The fibers of the supplier cable 700 may be protected by a loose buffer tube while continuing into the swing frame 300.
17 is a rear perspective view of a swing frame 300 suitable for coupling a connectorized supplier cable 700 with a splitter module 500. FIG. The cable management device follows a variation of configuration C1. The storage spools 922 and 924 and the fan-out device 926 are mounted on the rear side of the sub-panel 315 rather than the side panel 340. In other embodiments (not shown), the storage spools 922, 924 and the fan-out device 926 may be mounted to the floor panel 330. The supplier cable 700 continues from the fan-out device 926 to the flexure limiter 936 and along the path A, despite the position of the spools 922, 924 and fan-out device 926, To the adapter assembly 530 mounted on the splitter module housing 322 via the limiter 940.
Referring now to Figures 18-19, the supplier cable 700 may be associated with the splitter input 702 using one or more interface devices 800 rather than directly connected to the splitter module 500. 18 is a rear perspective view of a swing frame 300 configured to couple a connectorized supplier cable 700 and a splitter module 500 via an intermediate splitter input fiber 702. FIG. Each splitter input fiber 702 has a first connectorized end 703 that connects to one of the adapter assemblies 530 opposite the unified connector 520 of the splitter 500. However, in another embodiment that does not use a splitter with an integrated connector, the splitter input 702 is a pigtail that passes through the splitter housing 505 rather than into the adapter assembly 530. [ Each splitter input fiber 702 also has a second connectorized end 701 associated with the connectored end of the fiber of the supplier cable 700.
Such an input pigtail 702 extends from the adapter assembly 530 past the bend radius limiter 940 and below the top panel 320, as shown in FIG. In particular, the input fibers 702 extend along the path A toward the side panel 340 using the support fingers 932 and then around the radius bending limiter 936. The end 701 of the input pigtail is then connected to the supplier cable 700 using the first adapter module 820. In some embodiments, the first adapter module is mounted to the subpanel 315 near the bottom panel 330. However, in other embodiments, the first adapter module 820 may be secured to the bottom panel 330 or the side panel 340. The first adapter module 820 includes a plurality of adapters 825 arranged in one or more rows. In some embodiments, each row includes about six adapters 825. Additional information regarding the adapter module 820 may be found in U.S. Patent Application No. 11 / 095,033, filed March 31, 2005, entitled " Adapter Block Including Connector Reservoir ", and U.S. Patent Nos. 5,497,444, 5,717,810, 5,758,003, and 6,561,051 And will refer to it.
To connect the supplier cable 700 to the first adapter module 820, an additional cable management device is provided in accordance with the second configuration C2. The second component C2 includes a fanout device 901 and one or more full or partial slack storage fiber spools 902 and 904, respectively. In the illustrated example, the fan-out device 901 and the storage spools 902 and 904 are mounted to the floor panel 330.
The supplier cable 700 first leads to a fanout device 901 which separates the fibers of the ribbon cable 700 into individual fibers. Any excess length of the individual input fibers of the supplier cable 700 may be stored in the slack storage spool 902 and the partial slack storage spool 904. The fibers of the supplier cable 700 are then connected to a second adapter module 820. The connectorized end of the supplier cable 700 is mounted within one end of the adapter 825 of the first adapter module 820. The connectorized end 701 of the input fiber 702 extends from the radius limiter 936 to the opposite end of the adapter 825 of the first adapter module 820. The adapter 825 provides an interface between the connector of the supplier cable 700 and the connector 701 of the input fiber 702.
19 is a rear perspective view of a swing frame 300 configured for use with a supplier cable 700 and a splitter module having unconnected ends. The supplier cable 700 is divided into a splitter input fiber 702 having an unconnected second end 701. A junction tray 830 is provided on the rear portion 304 of the swing frame 300 to connect the supplier cable 700 to the unconnected fiber input 702.
To connect the supplier cable 700 with the junction tray 830, an additional cable management device is provided in accordance with the third configuration C3. The third component C3 includes a fanout device 907 mounted around the junction tray 830 and one or more radius bending limiters 906. In addition, one or more radius bending limiters 908 are located near the junction tray 830. Each limiter 906 includes a tab 907 for retaining the fibers in a loop around the limiter 906. The limiter 906 is oriented to prevent fibers from being caught on the corners of the bond tray 830. In some embodiments, the junction tray 830 and the limiter 906 are located behind the sub-panel 315. However, in other embodiments, the junction tray 830 and the limiter 906 may be located at any desired location in the rear portion 304 of the swing frame 300.
The unconnected end of the supplier cable 700 extends around the limiter 906 and leads to the junction tray 808. [ Any excess length of the individual fibers of the supplier cable 700 can be stored by winding the fibers around the splice tray 830. The input fibers 702 from the splitter module 500 run around the limiter 908 from the radius limiter 936 and into the splicing tray 830. The unconnected end of the supplier cable 700 is then bonded to the unconnected end 701 of the input fiber 702. [
Still referring to Figs. 16-19, in some embodiments, it may be desirable not to split one or more supplier cables 700 in order to be able to deliver a stronger and more reliable signal to the subscriber. Therefore, in some embodiments, the swing frame 300 is further configured to allow one or more fibers (referred to as through fibers) 712 to interface with the fibers from the supplier cable 700. [ The penetrating fibers 712 bypass the splitter module 500 and advance forward of the swing frame 300 to interface with the distribution cable 708.
In order to achieve such a path, the swing frame 300 includes an opening 910 in the vicinity of the rear flange 344 of the side panel 340. In some embodiments, the opening 910 includes a radius limiter 912 (best shown in FIG. 13) extending outwardly from the outer surface of the rear flange 344 to prevent excessive flexing of the fibers passing through the opening 910 Shown in FIG. The tab 915 can also be urged outwardly in the rear flange 344 to define a channel to the outside in the vicinity of the rear flange 344. [ The radial flexure limiter 962 connects the rear flange 344 of the side panel 340 to the top panel 320. Additional cable management devices are provided based on the configurations C1, C2, C3 where the swing frame 300 is installed.
17, when the swing frame 300 complies with configuration C1, the connectorized end of the supplier cable 700 is connected to the input fiber 702 using the second adapter module 810. [ The adapter end 810 includes multiple fiber adapters 815 configured to receive the connectorized fibers from one end. Swing frame 300 also includes additional cable management in the form of bending radius limiter 906 and slack storage spools 902, 904.
To bypass the splitter module 500, the supplier cable 700 still travels around the spools 922, 924 and leads to a fanout device 926. From the fanout device 926, however, the supplier cable 700 returns around the spools 922, 924 and around the flexure limiter 926 and around the spools 902, 904. From the spools 902 and 904, the connectorized end of the fiber 700 is secured to the adapter end 810. The adapter end 810 exits the aperture 910 and connects to the side 700 and the connector end of the through fiber 712 through the limiter 962 and onto the top panel 320 . As described above with reference to FIGS. 10 and 11, the penetrating fibers 712 extend from the upper panel 320 toward the terminal module 400.
Referring to Fig. 18, the penetrating fibers 712 may also be used with the second configuration C2. The supplier cable 700 continues to the fan out device 901 firstly and then to one end of the adapter module 820 with any slack stored in the spools 902 and 904. Instead of connecting the splitter pigtail 702 to the other end of the adapter module 820, however, the penetrating pigtail 712 is connected into the adapter module 820. The through pigtail 712 then follows the same path as discussed above.
Referring to Fig. 19, the penetrating pigtail 712 may also be bonded to the unconnected end of the supplier cable 700. If such a configuration is required, a second adapter module 810 is provided in the swing frame 300 as discussed above with reference to FIG. The supplier cable 700 continues to extend around the limiter 906 to junction tray 830 according to configuration C3. Any excess length of the individual fibers of the supplier cable 700 can be stored wrapped around the limiter 906. However, the fibers of the supplier cable 700 are bonded to the connectorized end 711 rather than to the splitter input 702. From the junction tray 830, the connectorized end 711 is routed around the storage spools 902 and 904 and then into the second adapter module 810. The second adapter module 810 extends through the aperture 910 and extends through the side panel 340 to the bending limiter 962 to provide a pigtail 711 to the through- Connect.
The through fibers 712 bypass the splitter module 500 and extend around the second fiber spool 954 of the upper panel 320 and into the channel B via the limiter 964 or the partial spool 966 . The path of the penetrating fibers 712 along the front portion 302 of the swing frame is substantially the same as the path of the splitter pigtail 704 discussed above with reference to Figs. Typically, the penetrating fibers 712 are connected directly to the subscriber line 708 via the adapter 450 on the terminal module 400. However, in some embodiments, the penetrating fibers 712 may be stored in an empty position on the storage module 600.
The foregoing description, examples, and data fully illustrate the use of the methods and compositions of the present invention. Various embodiments can be made without departing from the spirit and scope of the invention, the invention being indicated in the appended claims.
A fiber distribution hub suitable for providing an interface between an incoming fiber and a plurality of outgoing fibers,
A cabinet having a front and a rear and including a front door for approaching from the front to the inside;
A terminal panel positioned within the interior of the cabinet and including at least one opening extending forward from the front side to the rear side including a front side toward the front side of the cabinet and a rear side toward the rear side of the cabinet;
And a plurality of terminal adapters mounted on the adapter mounting panel and the adapter module, wherein the terminal adapter includes a front end and a rear end, the adapter mounting panel being fixed to the rear side of the terminal panel, An adapter module including a rear fiber optic connector extending through the one or more openings of the terminal panel and extending forwardly and being mounted within the rear end of the terminal adapter and connected to the outflow fibers;
A splitter mounted within the cabinet for splitting signals of the incoming fiber into a plurality of splitter fibers having ends; And
And a front fiber optic connector located at an end of the splitter fiber and inserted into the front end of the terminal adapter to provide a connection with the rear fiber optic connector.
Wherein the openings of the one or more terminal panels comprise a plurality of elongated slots separated by strips and terminal adapters of the adapter modules are arranged in rows and columns within the elongated slots.
Wherein labeling comprising connector identification information is provided on the strip.
Wherein the terminal panel is a part of a swing frame pivotally mounted in the cabinet, the swing frame having a first position in which a rear side of the terminal panel faces a rear side of the cabinet, And a second position accessible from the front of the cabinet.
Wherein the terminal panel is part of a partition wall dividing the swing frame into a front portion and a rear portion.
Wherein the partition wall also includes an intermediate panel positioned adjacent to the terminal panel, wherein a cable management device for storing excess fibers is located in the intermediate panel, the swing frame also includes an upper panel, Is mounted to the top panel and the splitter fibers extend beneath the intermediate panel and extend around the cable management device to the module adapter thereby leading from the splitter to the module adapter.
Wherein the terminal panel is inclined with respect to the intermediate panel.
Wherein the swing frame includes a bottom trough located at a front portion thereof, the trough being inclined to an angle between the terminal panel and the intermediate panel.
Wherein the swing frame is attached to the cabinet by a hinge and the end of the trough located in the vicinity of the hinge is adapted to move the swing frame from the first position to the second position, Herb.
6. The fiber distribution hub of claim 5, further comprising an inflow fiber end adapter mounted on a rear portion of the swing frame and a bond tray.
Wherein the adapter module includes a cable management panel projecting rearwardly with respect to the adapter mounting panel, the cable management panel defining a side opening for allowing the outgoing fibers to pass laterally through the cable management panel, Wherein the module further comprises a fan-out device and a cable management spool mounted on the cable management panel.
Wherein a plurality of adapter modules are mounted on the rear side of the terminal panel, the cable management panels cooperating with each other to define a side wall of the swing frame.
A swing frame pivotally mounted to the cabinet by a hinge, the partition comprising a swing frame dividing the swing frame into a front region and a rear region, the swing frame having a first position within the cabinet, Wherein the partition wall includes a terminal area on which the terminal adapter is mounted, the terminal adapter including a front end and a rear end, the swing frame also being movable between an upper panel and a lower panel, A floor panel, comprising: a top panel having an upper side and a lower side, the floor panel having an upper side and a lower side, the partition comprising a swing frame extending vertically between the upper panel and the floor panel;
A rear connector inserted into the rear end of the terminal adapter and to which the outgoing fibers are connected;
A plurality of splitter fibers mounted on the upper side of the upper panel of the swing frame and having an end terminated in the front connector, the splitter fibers being configured to split the signal of the incoming fiber into a plurality of splitter fibers, A splitter in which the front connector is inserted into the front end of the terminal adapter to interconnect the terminals;
Extending in a direction away from the hinge and extending laterally along the upper side of the bottom panel of the swing frame and extending upwardly along the swing frame to the lower side of the upper panel of the swing frame And an inflow fiber movement path extending laterally along the lower side of the upper panel in the direction of the hinge and leading to a splitter mounted around the upper limit of the upper panel, .
A swing frame pivotally mounted to the cabinet by a hinge, the partition comprising a swing frame dividing the swing frame into a front region and a rear region, the swing frame having a first position within the cabinet, The swing frame including a terminal area on which the terminal adapter is mounted;
The outflow fibers being connected to a rear connector inserted in a rear end of the terminal adapter;
A splitter for splitting a signal from a first incoming fiber into a plurality of splitter fibers having an end at which the forward connector is terminated, the splitter having a forward connector adapted to be inserted into the forward end of the terminal adapter for interconnecting the incoming and outgoing fibers, Splitter; And
And a second inflow fiber connected to one of the terminal adapters without the signal being split by the splitter.
Wherein the swing frame has a top panel and a bottom panel and the swing frame also includes a side panel located opposite from the hinge and the second inflow fiber extends in a direction away from the hinge across the rear end of the swing frame Extending along an upper side of the bottom panel and extending through an opening in the side panel and along an outer side of the side panel leading to an upper side of the upper panel, A fiber distribution hub defining a path reaching a forward region of the swing frame.
Wherein each fiber optic adapter has a first end and an opposite second end, the first end of the optical fiber adapter being configured to receive the connectorized end of the inflow fiber, A second end of the fiber optic adapter is configured to receive a connectorized end of the outgoing fiber; And
A management leg coupled to the terminal leg to form a substantially L-shape, the management leg comprising a storage spool for storing an excess length of the outflow fibers, the outflow fibers passing through the opening Wherein the management leg further includes one or more fanout devices positioned proximate the opening and defining an opening of a size that allows the fan to be positioned within the opening.
Wherein the management leg defines an opening between the terminal leg and the storage spool.
Wherein the terminal leg and the management leg are formed monolithically from a bent metal sheet piece.
Prior to installation of the terminal module, the outflow fibers are connected to the second end of the fiber optic adapter of the terminal leg, leading from the second end of the fiber optic adapter to the storage spool of the management leg, A terminal module that exits the opening and leads to one or more fanout devices.
Wherein the plurality of optical fiber adapters on the terminal legs are arranged in two rows, and each column holds twelve optical fiber adapters.
KR1020087022476A 2006-02-13 2007-02-07 Fiber distribution hub with swing frame and modular termination panels KR101397280B1 (en)
KR20080094830A true KR20080094830A (en) 2008-10-24
KR101397280B1 KR101397280B1 (en) 2014-05-20
KR1020087022476A KR101397280B1 (en) 2006-02-13 2007-02-07 Fiber distribution hub with swing frame and modular termination panels