WO2009023673A2 - High density fiber optic interconnect system with push-release mechanism and method for using same - Google Patents
High density fiber optic interconnect system with push-release mechanism and method for using same Download PDFInfo
- Publication number
- WO2009023673A2 WO2009023673A2 PCT/US2008/072916 US2008072916W WO2009023673A2 WO 2009023673 A2 WO2009023673 A2 WO 2009023673A2 US 2008072916 W US2008072916 W US 2008072916W WO 2009023673 A2 WO2009023673 A2 WO 2009023673A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- adapter
- connector
- holder
- operably
- fiber optic
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 38
- 239000000835 fiber Substances 0.000 title claims description 52
- 238000000034 method Methods 0.000 title claims description 13
- 238000003780 insertion Methods 0.000 claims abstract description 15
- 230000037431 insertion Effects 0.000 claims abstract description 15
- 239000013307 optical fiber Substances 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims description 14
- 238000010168 coupling process Methods 0.000 claims description 14
- 238000005859 coupling reaction Methods 0.000 claims description 14
- 230000013011 mating Effects 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 230000003111 delayed effect Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 208000020564 Eye injury Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- -1 but not limited to Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3885—Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
- G02B6/3893—Push-pull type, e.g. snap-in, push-on
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3897—Connectors fixed to housings, casing, frames or circuit boards
Definitions
- This invention generally relates to connecting fiber optic connectors to an adapter for precise end to end mating of fiber optic cables and particularly, to a high density system for interconnecting fiber optic connectors, through the use of a "push-release" insertion/withdrawal mechanism associated with an adapter for use in a high density environment and a method for using same.
- Optical fibers are used for high speed communications and data transmission.
- Optical fiber connectors are used to provide means for quickly coupling and uncoupling the ends of the fibers in a quick- re lease fashion.
- Optical fiber connectors are interconnected by adapters which not only interconnect a pair of opposing optical fiber connectors, but also align the optical fibers to prevent transmission losses at the interconnecting interface. In the fiber optics field, the need frequently arises to transfer light from one fiber to another either permanently or temporarily.
- Optical connector plugs or connectors are one of the solutions used for this purpose. Fibers terminated with optical connector plugs can be coupled together and disconnected when necessary, either to end the connection or to route the light to a different fiber.
- Optical connector plugs can be of the single or multiple fiber variety. Single fiber connector plugs (simplex connector plugs) provide the connection of only one fiber to another single fiber. In multiple fiber connector plugs, several fibers are simultaneously coupled with another set of similar fibers. The invention here disclosed applies primarily to multi-
- the connection is achieved by the use of MT-type ferrules.
- the ferrules which may be manufactured mostly from plastic, have a number of channels of a diameter slightly larger than the optical fiber. It is appreciated that the ferrules may be manufactured from materials other than plastic including, but not limited to ceramics, metal and glass and not depart from the scope of the present invention.
- the optical fibers are inserted into the channels and maintained fixed therein by the use of adhesives such as, but not limited to, epoxy, or mechanical clamping.
- the ends of the fibers are preferably made to be flush or protrude slightly from the end surfaces of the ferrule and are then terminated, generally by a polishing procedure or other means that provides a very smooth surface of optical quality.
- Two connectors may be mated using an adapter.
- Each connector preferably comprises the ferrule and a ferrule holder.
- One of the two mated connectors usually has a ferrule with a pair of alignment pins, while the other connector has a ferrule with a pair of alignment holes.
- Modern fiber optic connectors usually have a spring mechanism that pushes the ferrules towards one another with a controlled force in order to achieve physical contact of both of the ferrules' ends, thereby improving the optical performance of the connection.
- Fiber optic connector plugs free from contaminants such as dirt or dust is very important. Dirt or dust on fiber ends can scatter or absorb light, causing excessive loss of signal and corresponding poor system performance. Presence of contaminants inside the connector plug could cause axial misalignment with similar consequences. Likewise, because of the intensity of the light being transferred, it is important to shelter users from unintended viewing thereof, so as to prevent eye injury.
- the push-release interconnect system of this invention is so small that it cannot be operated by using the user's fingers when used in crowded panels. Instead, a stylus-like object, like the end of a paper clip or end of a ball point can be used. While the examples described herein shown are based on an MT-type ferrule, the push-release mechanism of the present invention includes and can be used with single channel systems with ceramic ferrules as well as for duplex and multi-channel designs. It can likewise be used in single, duplex and custom configurations. The present invention is directed to providing a unique optical fiber interconnect system including a push-release mechanism associated with the adapter and connector.
- the interconnect system of the present invention comprises an adapter, a connector and a holder.
- the holder mounts the adapter to a front panel.
- a push-release system is provided to connect and release the connector from the adapter.
- the connector is coupled to the adapter by providing an insertion force to the push tab on the connector.
- the connector is released from the adapter by applying a releasing force to the releaser of the adapter.
- a push-release system is used to release the connector from the adapter and a similar system is used to release the adapter from the holder.
- a release mechanism is provided for actuating release of the adapter from the holder through the holder aperture on the front side of the holder, so as to be recessed from the front face of the panel to avoid undesired or accidental separation of the adapter from the holder.
- a simple plastic or metal part can be used as a tool to release the adapter from the holder. In that way, the adapter carrying a back connector can be removed from the front of the panel for cleaning, inspection, testing etc. of the back connector and adapter itself.
- the alignment pin holder of the present invention is configured so that the pins can be installed after fiill termination and assembly of the connector from the front. In that way, the decision to use a male or female configuration could be made as late as possible in the process or even in the field.
- the push-release interconnect system of the present invention enables a high density interconnect system that is more reliable, simpler, less expensive, and uses less parts, than prior art systems.
- a preferred embodiment of the fiber optic interconnect system comprises: a fiber optic connector; an adapter for operably receiving said connector; and, a push-release coupling mechanism operably associated with the adapter for detachably retaining the connector in operably connected fashion within the adapter until a force is applied to the adapter to release the connector from the adapter.
- At least one connector is provided for carrying one or more optical fibers along a longitudinal axis.
- An adapter is configured to operably connect with the connector.
- the adapter includes a coupling mechanism configured to receive and couple with the connector upon application of an insertion force to the connector so as to removably receive the connector in operably connected fashion in the adapter.
- the coupling mechanism uncouples the connector from the adapter upon application of a releasing force to the adapter for withdrawal of the connector from the adapter.
- At least one connector for carrying one or more optical fibers along a longitudinal axis is provided.
- An adapter is configured to operably receive the connector and has a coupling mechanism operably attached thereto for detachably coupling the connector to the adapter.
- the connector is coupled to the adapter by applying an insertion force to the connector, so as to detachably couple the connector to the adapter.
- the connector is released from the adapter by applying a releasing force to the adapter, so as to release the connector from the adapter.
- the system further includes a holder operably receiving the adapter and operably connecting to the panel.
- the holder further includes a second coupling mechanism interposed between the holder and the adapter.
- the holder further comprises an aperture for actuation of the coupling mechanism for releasing the adapter from the holder.
- a connector is provided for carrying at least one fiber optic cable.
- An adapter is configured to operably and releasably connect with the connector.
- a holder is operably and releasably connected to the adapter.
- a first push-release connection mechanism is operably interposed between the connector and the adapter for releasing the connector from the adapter.
- a second push-release connection mechanism is interposed between the adapter and the holder for releasing the adapter from the holder.
- At least one multi-position holder is connected to a panel and operably receives a plurality of adapters therein. At least one of the adapters has a release tab operably attached thereto. At least one connector has a cable attached to one end thereof and is attached to one of the plurality of adapters. The adapters are arranged substantially horizontally; and, the release tab is not blocked by the cable.
- An adapter is provided for operably receiving a front connector on a front side of the panel and a back connector on a back side of the panel.
- a holder operably attaches the adapter to the panel.
- a push-release removal mechanism is operably associated with the holder and the adapter for separating the adapter from the holder from the front side of the panel. The removal mechanism enables access to the back side of the panel and the back connector from the front side of the panel.
- An adapter is provided for mounting to a holder for operable attachment to a panel having front and back sides.
- a second or back connector is operably connected to the adapter on the back side of the panel.
- a push-release removal mechanism is operably interposed between the adapter and the holder for releasing the adapter from the holder. The adapter and the back connector are removed from the front side of the panel when the adapter is released from the holder.
- a connector has a ferrule requiring finishing of a face thereof and having at least one aperture in the ferrule for receipt of at least one alignment pin after assembly thereof.
- the pin has a chamfer thereon.
- a pinholder is operably connected to the ferrule.
- the pinholder has an inner chamfer corresponding to the outer chamfer on the pin for interlocking receipt thereof.
- the pinholder also has a stop wall to stop the alignment pin in the desired position.
- the invention further includes a method of connecting and releasing an adapter having a release tab and a connector having a push tab of a fiber optic interconnect system.
- An insertion force is applied to the push tab of the connector towards the adapter until received by the adapter.
- the connector is engaged with the adapter in an operable fashion.
- a releasing force is applied to the release tab of the adapter to release the connector from the adapter.
- the holder In the method of connecting and releasing an adapter from a holder, the holder has a release opening. An insertion force is applied to the adapter towards the holder until it is received by the holder. The adapter is engaged with the holder in an operable fashion.
- a removing force is applied to a recessed release mechanism through the release opening to release the adapter from the holder.
- the invention further includes a connector for carrying at least one fiber optic cable and containing a resilient member operably associated therewith.
- An adapter is configured to operably and releasably connect with the connector.
- the resilient member which can be a compression spring, a piece of rubber or the like, is compressed when the adapter connects with the connector and expands and generates a spring force when the connector is released from the adapter and the resilient member, expands.
- a push-release connection mechanism is operably interposed between the connector and the adapter for releasing the connector from the adapter. The resilient member force serves to push the connector away from the adapter when the connector is released from the adapter.
- FlG. 1 is a perspective view of the Push-Release interconnect system showing rear connector connected to adapter within holder and front connector not connected to adapter.
- FlG. 2 is a perspective view of the Push-Release interconnect system of Figure 1 showing the bottom thereof.
- FlG. 3 is a perspective view of one position, two position and four position holders containing adapters and attached to a front panel.
- FIG. 4 is a perspective view of a multi-position panel.
- FIG. 4A is a perspective view of the interconnect system adapter subassembly with the front and rear connectors attached, but without the holder surrounding the adapter.
- FIG. 5 is a partially exploded view of the interconnect system adapter subassembly without the holder.
- FIG. 6 provides perspective views of the male connector from the front and rear ends.
- FIG. 7 is an exploded perspective view of male connector 11.
- FIG. 8 is an exploded perspective view of the ferrule subassembly.
- FIG. 9 contains perspective views of the top and bottom of the adapter assembly.
- FIG. 10 is an exploded perspective view of the adapter assembly.
- FIG. 11 contains perspective views of the top and bottom of the releaser.
- the interconnect system 10 of the present invention includes adapter 14, connectors 11 and 12 and holder 13 and uses a push-release mechanism.
- the adapter 14 is mounted inside the interior of holder 13, while the holder 13 is mounted on the panel 30 (shown in Figure 3).
- the connector 11 can be pushed into the adapter 14 by using any stylus-like, pointed object (not shown) such as a special tool, ball pen point, end of a paper clip or the like to apply a pushing force (away from the user) to push tab 17.
- any stylus-like, pointed object such as a special tool, ball pen point, end of a paper clip or the like to apply a pushing force (away from the user) to push tab 17.
- connector 1 1 is the front connector and connector 12 is the rear connector.
- Holder 13 is a one position holder.
- the connector 11 can be released from the adapter 14 by using the same sort of stylus-like object.
- a pushing force is applied to releasing tab 15 so as to release the connector 11 from the adapter 14.
- Latches 19 on the sides of the holder 13 are designed to be operable with almost all standard panel 30 thicknesses.
- Panel 30 of Figure 3 is held between step-like front edge 19A of latch 19 and the back edge 13B of holder flange 13A. As shown, the series of steps on front end 19A of latches 19 enable the use of holder 13 with panels 30 of different standard thicknesses.
- the adapter 14 can be pushed into the holder 13 by inserting a connector 11 into adapter 14 or with the aid of a stylus-like special tool, miniature screwdriver, ball pen point or paper clip (not shown) by pushing on connector tab 17.
- the adapter 14 can be released from the holder 13 by using a simple tool to push on latches 221 recessed inside holder release opening 16.
- Figure 2 shows an inverted view of holder 13 having dual prong latch 221 that receive stopper 200 of adapter 14 so as to hold adapter 14 in place therebetween in releasable fashion. Inserting the simple tool such as slightly modified miniature screwdriver or the like, into release opening 16 enables separation of the prongs of latch 221 so that stopper 200 can move between opened prongs of latch 221 to result in release of the adapter 14 from the holder 13 from the front thereof.
- the simple tool such as slightly modified miniature screwdriver or the like
- the adapter holders can have many different configurations. Depending on the panel pattern, a vertical or horizontal holder position can be more suitable. One-position 13, two-position 31 and four-position 32 holders are shown. Other holder configurations are also possible, though the adapters 14 and connectors 11, 12 used in those different configurations would always be the same.
- Figure 4 shows one example of a potential multi-position panel configuration of the adapters 14, connector 11 and 24-position panel 30 with four-position holders 32. In this example, holders 32 are mounted on the panel 30 in a horizontal direction so the hanging cables 125 of connectors 11 are not obstructing release tabs 17 of adapters 14.
- Front connector 11 and rear connector 12 each have boots 51, pushing tabs 17 and are shown fully inserted into adapter 14 in Figure 4A.
- Re leasers 41 each have resilient portions 42 that compress when release tabs 15 are pushed inward (away from the user).
- push tab 17 is pushed forward (away from user) until stopper 20 (shown in Figure 5) moves between the prongs of latch 21 ( Figure 5), separates the prongs and is then releasably captured therebetween.
- connector 11 Because the internal springs (not shown) of the connector 11 are slightly compressed when connector 11 is fully inserted in adapter 14, connector 11 sits securely in adapter 14 without undesired wiggling or play and the like. When rear or second connector 12 is similarly secured in adapter 14, the internal springs of both connectors 1 1, 12 are compressed more to provide the required mating force.
- Figure 5 is an exploded view of the interconnect system subassembly. As shown in Figure 5 with respect to front connector 1 1, connectors 1 1, 12 each have ferrule 23 and connector 11 has pins 24. To release connector 11, 12 from adapter 14, releasing tab 15 should be moved forward (away from the user) until the wedge underneath releaser 41 separates prongs of latch 21 and thus allows connector 1 1, 12 to be pushed out (toward user) from adapter 14 by the force of its internal connector springs.
- Figure 6 focuses on connector 11 of the preferred embodiment which is shown from front and rear ends. Connector 11 is intended to be usable with standard MT type ferrule 23 and alignment pins 24, with any number of fibers.
- Stopper 20 of housing 52 is shown as triangular in this example, but it can be any shape that works to separate prongs of latch 21 when connector 11 is inserted into adapter 14 and reliably keep it in mating position. Stopper 20 can be molded into or otherwise affixed to housing 52. The same is true for stopper 200 on the bottom of adapter 14 (see Fig. 9).
- Alignment pins 24 can be installed in ferrule 23 from the front of the ferrule 23 after assembly of the connector 1 1 is completed. As a result, the gender of the connector 11 can be determined at the end of the termination process or even later in the field. Accordingly, the difficulties caused by forgetting to install pins 24 in ferrule 23 prior to assembly are avoided.
- connector 11 12 comprises five main molded parts. Housing 52, pin holder 60, rear body 55, boot housing 53A and boot 51 are shown in addition to identical compression springs 58.
- the assembly process comprises ferrule 23, springs 58, pin holder 60 and inner boot 59 are first placed in connector housing 52. Rear body 55 is then snapped into housing 52 Boot housing 53A is then snapped onto rear body 55. Latches 54 of boot housing engage openings 56 of rear body 55. Latches 57 of rear body 55 engage openings 62 of housing 52 Pins 24 are held by pin holder 60.
- Springs 58 serve to spring-load ferrule 23 within connector 11. Slots 63 of connector 1 1, 12 shown in Figure 7, receive ribs 300 on the interior of the adapter 14 visible in Figure 10. When connector 11, 12 is fully inserted into adapter 14 and interior adapter ribs 300 almost reach the end of slots 63 on the exterior of the connectors 1 1, 12 the interior springs 58 are compressed. When connectors 11, 12 are released from adapter 14, the spring force generated by compressed springs 58 when they are released serves to drive the connector 11, 12 away from the adapter 14. Turning to Figure 8, pin holder 60 enables alignment pins 24 to be installed from the front, after all of the assembly steps including termination are completed.
- Pin holder 60 is provided with 2 sets of latches 71 which have an inner chamfer 248 in the entrance area thereof for capturing the alignment pins 24. Corresponding outer chamfers 24A on the rear ends of the pins 24 facilitates installation. Each pin 24 snaps into latches 71 and is secured therein by its grooves 25 being received by latches 71. Two bosses 61 on the opposite side of the pin holder 60 are used as fixing elements for 2 compression springs 58 of the connector 11, 12. Stop wall 24C of pin holder 60 stops alignment pins from going too far and serves to position alignment pins 24 in the desired position.
- FIG 9 shows top and bottom views of adapter 14.
- the housing of adapter 14 consists of 2 almost identical halves, rear housing 91 and front housing 92.
- Rear housing 91 and front housing 92 are held together by 2 pairs of mirror image latches, which are shown as latches 93 and 97.
- housing 91, 92 are held together by ultrasonic welding or the like.
- Adapter 14 includes two identical spring loaded shutters 103, 107 (shown in Figure 10) in order to protect the user's eyes from the laser emissions and partially protect the interior of adapter 14 from dust, dirt and particles.
- Adapter 14 further includes releasers 41 having resilient portions 42 and release tabs 17.
- Pushing release tab 17 in a direction away from the user with a stylus like object results in movement of releaser 41 and compression of resilient portion 42.
- Double wedge 35 on the underside of releaser 41 (shown in Figure 11) is then driven between prongs of internal latch 131 of adapter 14. Because of its wedge shape, the prongs of internal latch 131 are separated enough so that they no longer hold stopper 20 of connector 11, 12 in captured fashion therebetween. As a result of this release and by the force of the internal springs, the connector 11, 12 is urged to slide outwardly relative to adapter 14 (towards the user).
- FIG. 9 The bottom most view of Figure 9 is the inverted or bottom view of adapter 14.
- Shutter springs which in this embodiment are leaf springs 105, 106 bias shutters 103, 107 closed unless and until a connector 11 , 12 is inserted into adapter 14.
- Adapter stopper 200 is provided on the bottom of the front half 92 of the adapter 14. Adapter stopper is also wedge-shaped so as to first split and separate double prongs of the latch 221 on the interior of the holder 13 (see Fig. 2) and then be releasably captured therebetween when adapter 14 is fully inserted into holder 13.
- the top most view of Figure 9 is the top view of adapter 14 showing rear housing
- Double prong latches 21 are provided on both halves 91, 92 of adapter 14 housing. In the preferred embodiment they are provided as a molded element of the housing itself. Releasers 41 are assembled in each housing half 91, 92 by slight compression of resilient portions 42 in the longitudinal direction, so that boss 1 10 goes into opening 111, 112 and the opposite side of re leaser 41 is secured under the housing bridge 201 by prongs 120 (shown in Figure 1 1).
- Each shutter 103, 107 has two half pins 104, 108 and are secured by the half pins 104, 108 into two semicircular openings 115, 116 in housing halves 91, 92. In that way, leaf springs 105, 106 keep shutters 103, 107 in place by slight pressure. As a result, the shutters 103, 107 open upon insertion of the connector 11, 12 and close upon withdrawal of the connector 11, 12 as a result of biasing from the leaf springs 105 , 106.
- Housing half 91 is attached to housing half 92 by latch 97 snap fitting into opening 100, latches 93 snap fitting into opening 96 and mirror image latches on the opposite side (not shown) do likewise. While snap-fitting of latches within openings in tongue and edge-like fashion is discussed and shown herein, other acceptable forms of attaching the body halves 91 and 92 should deemed as being within the scope of the invention.
- a recess 99 in body half 92 corresponding to latch 97 of body half 91 is shown.
- a recess 95 in body half 91 corresponding to latch 93 is shown.
- Each latch 93, 97 has a pawl 94, 98 at its free end for receipt by openings 96, 100 in the recess 95, 99 with which it mates. Views of re leaser 41 from its top and its bottom are provided in Figure 11.
- Releaser 41 has push tab 17, prongs 120 and resilient part 42. As viewed from the bottom, boss 110 is seen on the far end of releaser 41 and prongs 120 and wedge 35 are also shown. While stopper 20 and latches 21; stopper 200 and latches 221; and wedge 35 and latches 21 are shown as triangular in shape and comprising resilient prongs, respectively, other configurations of stoppers or latches that serve to capture and retain a component in releasable fashion should be considered as being within the scope of the invention. Many modifications and variations of the present invention are possible in light of the above teachings. It is therefore to be understood that within the scope of appended claims, the invention may be practiced other than as specifically described. Various modifications, changes and variations may be made in the arrangement, operation and details of construction of the invention disclosed herein without departing from the spirit and scope of the invention. The present disclosure is intended to exemplify and not limit the invention.
Abstract
An optical fiber interconnect system (10) wherein the adapter (14) is connected to and released from the holder (13) and the connector (11) is connected to and released from adapter (14) through two push-release connection and release mechanisms (15, 17, 20, 21. 35, 41, 42, 1 10, 120). The connector is engaged with the adapter (14) by applying an insertion force to the connector (11). The connector (11) is released by applying a releasing force to the connection mechanism (15) on the adapter (14). The system (10) of the invention includes a holder (13) for attachment of the adapter (14) to a front panel (30). A release opening is provided on the holder (13) for the release of the adapter (14) from the holder (13) from the front of the panel (30) so as to provide access to the back connector (12).
Description
HIGH DENSITY FIBER OPTIC INTERCONNECT SYSTEM WITH PUSH-RELEASE MECHANISM AND METHOD FOR USING SAME
This application claims benefit to U.S. nonprovisional patent application 11/837,997 filed August 13, 2007, the entirety of which is hereby incorporated by reference.
TECHNICAL FIELD
This invention generally relates to connecting fiber optic connectors to an adapter for precise end to end mating of fiber optic cables and particularly, to a high density system for interconnecting fiber optic connectors, through the use of a "push-release" insertion/withdrawal mechanism associated with an adapter for use in a high density environment and a method for using same.
BACKGROUND ART
Optical fibers are used for high speed communications and data transmission. Optical fiber connectors are used to provide means for quickly coupling and uncoupling the ends of the fibers in a quick- re lease fashion. Optical fiber connectors are interconnected by adapters which not only interconnect a pair of opposing optical fiber connectors, but also align the optical fibers to prevent transmission losses at the interconnecting interface. In the fiber optics field, the need frequently arises to transfer light from one fiber to another either permanently or temporarily. Optical connector plugs or connectors are
one of the solutions used for this purpose. Fibers terminated with optical connector plugs can be coupled together and disconnected when necessary, either to end the connection or to route the light to a different fiber. Optical connector plugs can be of the single or multiple fiber variety. Single fiber connector plugs (simplex connector plugs) provide the connection of only one fiber to another single fiber. In multiple fiber connector plugs, several fibers are simultaneously coupled with another set of similar fibers. The invention here disclosed applies primarily to multi-fiber applications.
Traditionally, in multi-fiber connectors, the connection is achieved by the use of MT-type ferrules. The ferrules, which may be manufactured mostly from plastic, have a number of channels of a diameter slightly larger than the optical fiber. It is appreciated that the ferrules may be manufactured from materials other than plastic including, but not limited to ceramics, metal and glass and not depart from the scope of the present invention. In use, the optical fibers are inserted into the channels and maintained fixed therein by the use of adhesives such as, but not limited to, epoxy, or mechanical clamping. The ends of the fibers are preferably made to be flush or protrude slightly from the end surfaces of the ferrule and are then terminated, generally by a polishing procedure or other means that provides a very smooth surface of optical quality.
Two connectors may be mated using an adapter. Each connector preferably comprises the ferrule and a ferrule holder. One of the two mated connectors usually has a ferrule with a pair of alignment pins, while the other connector has a ferrule with a pair of alignment holes. Modern fiber optic connectors usually have a spring mechanism that pushes the ferrules towards one another with a controlled force in order to achieve physical contact of both of the ferrules' ends, thereby improving the optical performance
of the connection.
Keeping fiber optic connector plugs free from contaminants such as dirt or dust is very important. Dirt or dust on fiber ends can scatter or absorb light, causing excessive loss of signal and corresponding poor system performance. Presence of contaminants inside the connector plug could cause axial misalignment with similar consequences. Likewise, because of the intensity of the light being transferred, it is important to shelter users from unintended viewing thereof, so as to prevent eye injury.
There is also a continuously increasing demand for higher density interconnect systems in fiber optics applications. The introduction by the present invention of a multi- fiber connector with the standard MT type ferrule has resulted in a small multi-fiber connector/adapter system with a push-release mechanism that allows for very high density configurations.
The push-release interconnect system of this invention is so small that it cannot be operated by using the user's fingers when used in crowded panels. Instead, a stylus-like object, like the end of a paper clip or end of a ball point can be used. While the examples described herein shown are based on an MT-type ferrule, the push-release mechanism of the present invention includes and can be used with single channel systems with ceramic ferrules as well as for duplex and multi-channel designs. It can likewise be used in single, duplex and custom configurations. The present invention is directed to providing a unique optical fiber interconnect system including a push-release mechanism associated with the adapter and connector.
DISCLOSURE OF THE INVENTION
The interconnect system of the present invention comprises an adapter, a connector and a holder. The holder mounts the adapter to a front panel. A push-release system is provided to connect and release the connector from the adapter. The connector is coupled to the adapter by providing an insertion force to the push tab on the connector. The connector is released from the adapter by applying a releasing force to the releaser of the adapter.
A push-release system is used to release the connector from the adapter and a similar system is used to release the adapter from the holder. A release mechanism is provided for actuating release of the adapter from the holder through the holder aperture on the front side of the holder, so as to be recessed from the front face of the panel to avoid undesired or accidental separation of the adapter from the holder. A simple plastic or metal part can be used as a tool to release the adapter from the holder. In that way, the adapter carrying a back connector can be removed from the front of the panel for cleaning, inspection, testing etc. of the back connector and adapter itself.
The alignment pin holder of the present invention is configured so that the pins can be installed after fiill termination and assembly of the connector from the front. In that way, the decision to use a male or female configuration could be made as late as possible in the process or even in the field.
The push-release interconnect system of the present invention enables a high density interconnect system that is more reliable, simpler, less expensive, and uses less parts, than prior art systems.
A preferred embodiment of the fiber optic interconnect system comprises: a fiber optic connector; an adapter for operably receiving said connector; and, a push-release coupling mechanism operably associated with the adapter for detachably retaining the connector in operably connected fashion within the adapter until a force is applied to the adapter to release the connector from the adapter.
At least one connector is provided for carrying one or more optical fibers along a longitudinal axis. An adapter is configured to operably connect with the connector. The adapter includes a coupling mechanism configured to receive and couple with the connector upon application of an insertion force to the connector so as to removably receive the connector in operably connected fashion in the adapter. The coupling mechanism uncouples the connector from the adapter upon application of a releasing force to the adapter for withdrawal of the connector from the adapter.
At least one connector for carrying one or more optical fibers along a longitudinal axis is provided. An adapter is configured to operably receive the connector and has a coupling mechanism operably attached thereto for detachably coupling the connector to the adapter. The connector is coupled to the adapter by applying an insertion force to the connector, so as to detachably couple the connector to the adapter. The connector is released from the adapter by applying a releasing force to the adapter, so as to release the connector from the adapter. The system further includes a holder operably receiving the adapter and operably connecting to the panel. The holder further includes a second coupling mechanism interposed between the holder and the adapter. The holder further comprises an aperture for actuation of the coupling mechanism for releasing the adapter from the holder.
A connector is provided for carrying at least one fiber optic cable. An adapter is configured to operably and releasably connect with the connector. A holder is operably and releasably connected to the adapter. A first push-release connection mechanism is operably interposed between the connector and the adapter for releasing the connector from the adapter. A second push-release connection mechanism is interposed between the adapter and the holder for releasing the adapter from the holder.
At least one multi-position holder is connected to a panel and operably receives a plurality of adapters therein. At least one of the adapters has a release tab operably attached thereto. At least one connector has a cable attached to one end thereof and is attached to one of the plurality of adapters. The adapters are arranged substantially horizontally; and, the release tab is not blocked by the cable.
An adapter is provided for operably receiving a front connector on a front side of the panel and a back connector on a back side of the panel. A holder operably attaches the adapter to the panel. A push-release removal mechanism is operably associated with the holder and the adapter for separating the adapter from the holder from the front side of the panel. The removal mechanism enables access to the back side of the panel and the back connector from the front side of the panel.
An adapter is provided for mounting to a holder for operable attachment to a panel having front and back sides. A second or back connector is operably connected to the adapter on the back side of the panel. A push-release removal mechanism is operably interposed between the adapter and the holder for releasing the adapter from the holder. The adapter and the back connector are removed from the front side of the panel when the adapter is released from the holder.
A connector has a ferrule requiring finishing of a face thereof and having at least one aperture in the ferrule for receipt of at least one alignment pin after assembly thereof. The pin has a chamfer thereon. A pinholder is operably connected to the ferrule. The pinholder has an inner chamfer corresponding to the outer chamfer on the pin for interlocking receipt thereof. The pinholder also has a stop wall to stop the alignment pin in the desired position.
The invention further includes a method of connecting and releasing an adapter having a release tab and a connector having a push tab of a fiber optic interconnect system. An insertion force is applied to the push tab of the connector towards the adapter until received by the adapter. The connector is engaged with the adapter in an operable fashion. A releasing force is applied to the release tab of the adapter to release the connector from the adapter.
In the method of connecting and releasing an adapter from a holder, the holder has a release opening. An insertion force is applied to the adapter towards the holder until it is received by the holder. The adapter is engaged with the holder in an operable fashion.
A removing force is applied to a recessed release mechanism through the release opening to release the adapter from the holder.
The invention further includes a connector for carrying at least one fiber optic cable and containing a resilient member operably associated therewith. An adapter is configured to operably and releasably connect with the connector. The resilient member, which can be a compression spring, a piece of rubber or the like, is compressed when the adapter connects with the connector and expands and generates a spring force when the connector is released from the adapter and the resilient member, expands. A push-release
connection mechanism is operably interposed between the connector and the adapter for releasing the connector from the adapter. The resilient member force serves to push the connector away from the adapter when the connector is released from the adapter.
Other objects, features and advantages of the invention will become apparent from the following description taken in connection with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
The design of the system can be better understood by following the description of the drawings set forth herein. A brief description of each figure is included here. FlG. 1 is a perspective view of the Push-Release interconnect system showing rear connector connected to adapter within holder and front connector not connected to adapter.
FlG. 2 is a perspective view of the Push-Release interconnect system of Figure 1 showing the bottom thereof. FlG. 3 is a perspective view of one position, two position and four position holders containing adapters and attached to a front panel.
FIG. 4 is a perspective view of a multi-position panel.
FIG. 4A is a perspective view of the interconnect system adapter subassembly with the front and rear connectors attached, but without the holder surrounding the adapter.
FIG. 5 is a partially exploded view of the interconnect system adapter subassembly without the holder.
FIG. 6 provides perspective views of the male connector from the front and rear
ends.
FIG. 7 is an exploded perspective view of male connector 11.
FIG. 8 is an exploded perspective view of the ferrule subassembly.
FIG. 9 contains perspective views of the top and bottom of the adapter assembly. FIG. 10 is an exploded perspective view of the adapter assembly.
FIG. 11 contains perspective views of the top and bottom of the releaser.
While the invention is susceptible of embodiment in many different forms, there is shown in the drawings and will herein be described in detail several specific embodiments, with the understanding that the present disclosure is to be considered merely an exemplification of the principles of the invention and the application is limited only to the appended claims.
DETAILED DESCRIPTION OF THE DRAWINGS
Referring to the drawings in greater detail, and first to Figures 1 and 2, the interconnect system 10 of the present invention includes adapter 14, connectors 11 and 12 and holder 13 and uses a push-release mechanism. The adapter 14 is mounted inside the interior of holder 13, while the holder 13 is mounted on the panel 30 (shown in Figure 3).
The connector 11 can be pushed into the adapter 14 by using any stylus-like, pointed object (not shown) such as a special tool, ball pen point, end of a paper clip or the like to apply a pushing force (away from the user) to push tab 17. In the configuration of Figures
1 and 2, connector 1 1 is the front connector and connector 12 is the rear connector.
Holder 13 is a one position holder.
Conversely, the connector 11 can be released from the adapter 14 by using the
same sort of stylus-like object. A pushing force is applied to releasing tab 15 so as to release the connector 11 from the adapter 14.
Latches 19 on the sides of the holder 13 are designed to be operable with almost all standard panel 30 thicknesses. Panel 30 of Figure 3 is held between step-like front edge 19A of latch 19 and the back edge 13B of holder flange 13A. As shown, the series of steps on front end 19A of latches 19 enable the use of holder 13 with panels 30 of different standard thicknesses.
The adapter 14 can be pushed into the holder 13 by inserting a connector 11 into adapter 14 or with the aid of a stylus-like special tool, miniature screwdriver, ball pen point or paper clip (not shown) by pushing on connector tab 17. The adapter 14 can be released from the holder 13 by using a simple tool to push on latches 221 recessed inside holder release opening 16.
Because the adapter 14 together with the rear connector 12 can be released from the holder 13 (toward the user) from the front as shown in Figures 1 and 2, through use of the stylus-like object, there is no need to open the chassis for cleaning the adapter 14 or rear connector 12.
Figure 2 shows an inverted view of holder 13 having dual prong latch 221 that receive stopper 200 of adapter 14 so as to hold adapter 14 in place therebetween in releasable fashion. Inserting the simple tool such as slightly modified miniature screwdriver or the like, into release opening 16 enables separation of the prongs of latch 221 so that stopper 200 can move between opened prongs of latch 221 to result in release of the adapter 14 from the holder 13 from the front thereof.
Turning to Figure 3, the adapter holders can have many different configurations.
Depending on the panel pattern, a vertical or horizontal holder position can be more suitable. One-position 13, two-position 31 and four-position 32 holders are shown. Other holder configurations are also possible, though the adapters 14 and connectors 11, 12 used in those different configurations would always be the same. Figure 4 shows one example of a potential multi-position panel configuration of the adapters 14, connector 11 and 24-position panel 30 with four-position holders 32. In this example, holders 32 are mounted on the panel 30 in a horizontal direction so the hanging cables 125 of connectors 11 are not obstructing release tabs 17 of adapters 14.
The connector-adapter subassembly is shown in Figures 4A and 5. Front connector 11 and rear connector 12 each have boots 51, pushing tabs 17 and are shown fully inserted into adapter 14 in Figure 4A. Re leasers 41 each have resilient portions 42 that compress when release tabs 15 are pushed inward (away from the user). In order to secure the connector 11 in adapter 14, push tab 17 is pushed forward (away from user) until stopper 20 (shown in Figure 5) moves between the prongs of latch 21 (Figure 5), separates the prongs and is then releasably captured therebetween. Because the internal springs (not shown) of the connector 11 are slightly compressed when connector 11 is fully inserted in adapter 14, connector 11 sits securely in adapter 14 without undesired wiggling or play and the like. When rear or second connector 12 is similarly secured in adapter 14, the internal springs of both connectors 1 1, 12 are compressed more to provide the required mating force.
Figure 5 is an exploded view of the interconnect system subassembly. As shown in Figure 5 with respect to front connector 1 1, connectors 1 1, 12 each have ferrule 23 and connector 11 has pins 24.
To release connector 11, 12 from adapter 14, releasing tab 15 should be moved forward (away from the user) until the wedge underneath releaser 41 separates prongs of latch 21 and thus allows connector 1 1, 12 to be pushed out (toward user) from adapter 14 by the force of its internal connector springs. Figure 6 focuses on connector 11 of the preferred embodiment which is shown from front and rear ends. Connector 11 is intended to be usable with standard MT type ferrule 23 and alignment pins 24, with any number of fibers. Stopper 20 of housing 52 is shown as triangular in this example, but it can be any shape that works to separate prongs of latch 21 when connector 11 is inserted into adapter 14 and reliably keep it in mating position. Stopper 20 can be molded into or otherwise affixed to housing 52. The same is true for stopper 200 on the bottom of adapter 14 (see Fig. 9).
Alignment pins 24 can be installed in ferrule 23 from the front of the ferrule 23 after assembly of the connector 1 1 is completed. As a result, the gender of the connector 11 can be determined at the end of the termination process or even later in the field. Accordingly, the difficulties caused by forgetting to install pins 24 in ferrule 23 prior to assembly are avoided.
An exploded view of the connector 1 1, 12 of the preferred embodiment is shown in Figure 7. If pins 24 are installed, the connector has the configuration of connector 11. In this embodiment, connector 11, 12 comprises five main molded parts. Housing 52, pin holder 60, rear body 55, boot housing 53A and boot 51 are shown in addition to identical compression springs 58. The assembly process comprises ferrule 23, springs 58, pin holder 60 and inner boot 59 are first placed in connector housing 52. Rear body 55 is then snapped into housing 52 Boot housing 53A is then snapped onto rear body 55. Latches
54 of boot housing engage openings 56 of rear body 55. Latches 57 of rear body 55 engage openings 62 of housing 52 Pins 24 are held by pin holder 60.
Springs 58 (shown in Figure 7) serve to spring-load ferrule 23 within connector 11. Slots 63 of connector 1 1, 12 shown in Figure 7, receive ribs 300 on the interior of the adapter 14 visible in Figure 10. When connector 11, 12 is fully inserted into adapter 14 and interior adapter ribs 300 almost reach the end of slots 63 on the exterior of the connectors 1 1, 12 the interior springs 58 are compressed. When connectors 11, 12 are released from adapter 14, the spring force generated by compressed springs 58 when they are released serves to drive the connector 11, 12 away from the adapter 14. Turning to Figure 8, pin holder 60 enables alignment pins 24 to be installed from the front, after all of the assembly steps including termination are completed. Pin holder 60 is provided with 2 sets of latches 71 which have an inner chamfer 248 in the entrance area thereof for capturing the alignment pins 24. Corresponding outer chamfers 24A on the rear ends of the pins 24 facilitates installation. Each pin 24 snaps into latches 71 and is secured therein by its grooves 25 being received by latches 71. Two bosses 61 on the opposite side of the pin holder 60 are used as fixing elements for 2 compression springs 58 of the connector 11, 12. Stop wall 24C of pin holder 60 stops alignment pins from going too far and serves to position alignment pins 24 in the desired position.
Figure 9 shows top and bottom views of adapter 14. In the preferred embodiment, the housing of adapter 14 consists of 2 almost identical halves, rear housing 91 and front housing 92. Rear housing 91 and front housing 92 are held together by 2 pairs of mirror image latches, which are shown as latches 93 and 97. Alternatively, housing 91, 92 are held together by ultrasonic welding or the like. Adapter 14 includes two identical spring
loaded shutters 103, 107 (shown in Figure 10) in order to protect the user's eyes from the laser emissions and partially protect the interior of adapter 14 from dust, dirt and particles. Adapter 14 further includes releasers 41 having resilient portions 42 and release tabs 17. Pushing release tab 17 in a direction away from the user with a stylus like object results in movement of releaser 41 and compression of resilient portion 42. Double wedge 35 on the underside of releaser 41 (shown in Figure 11) is then driven between prongs of internal latch 131 of adapter 14. Because of its wedge shape, the prongs of internal latch 131 are separated enough so that they no longer hold stopper 20 of connector 11, 12 in captured fashion therebetween. As a result of this release and by the force of the internal springs, the connector 11, 12 is urged to slide outwardly relative to adapter 14 (towards the user).
The bottom most view of Figure 9 is the inverted or bottom view of adapter 14. Shutter springs, which in this embodiment are leaf springs 105, 106 bias shutters 103, 107 closed unless and until a connector 11 , 12 is inserted into adapter 14.
Adapter stopper 200 is provided on the bottom of the front half 92 of the adapter 14. Adapter stopper is also wedge-shaped so as to first split and separate double prongs of the latch 221 on the interior of the holder 13 (see Fig. 2) and then be releasably captured therebetween when adapter 14 is fully inserted into holder 13. The top most view of Figure 9 is the top view of adapter 14 showing rear housing
91 and front housing 92, front latch 92 and rear latch 97, and releasers 41.
An exploded view of the adapter 14 assembly is provided in Figure 10. Double prong latches 21 are provided on both halves 91, 92 of adapter 14 housing. In the
preferred embodiment they are provided as a molded element of the housing itself. Releasers 41 are assembled in each housing half 91, 92 by slight compression of resilient portions 42 in the longitudinal direction, so that boss 1 10 goes into opening 111, 112 and the opposite side of re leaser 41 is secured under the housing bridge 201 by prongs 120 (shown in Figure 1 1).
Each shutter 103, 107 has two half pins 104, 108 and are secured by the half pins 104, 108 into two semicircular openings 115, 116 in housing halves 91, 92. In that way, leaf springs 105, 106 keep shutters 103, 107 in place by slight pressure. As a result, the shutters 103, 107 open upon insertion of the connector 11, 12 and close upon withdrawal of the connector 11, 12 as a result of biasing from the leaf springs 105 , 106.
Housing half 91 is attached to housing half 92 by latch 97 snap fitting into opening 100, latches 93 snap fitting into opening 96 and mirror image latches on the opposite side (not shown) do likewise. While snap-fitting of latches within openings in tongue and edge-like fashion is discussed and shown herein, other acceptable forms of attaching the body halves 91 and 92 should deemed as being within the scope of the invention. A recess 99 in body half 92 corresponding to latch 97 of body half 91 is shown. Likewise a recess 95 in body half 91 corresponding to latch 93 is shown. Each latch 93, 97 has a pawl 94, 98 at its free end for receipt by openings 96, 100 in the recess 95, 99 with which it mates. Views of re leaser 41 from its top and its bottom are provided in Figure 11.
Releaser 41 has push tab 17, prongs 120 and resilient part 42. As viewed from the bottom, boss 110 is seen on the far end of releaser 41 and prongs 120 and wedge 35 are also shown.
While stopper 20 and latches 21; stopper 200 and latches 221; and wedge 35 and latches 21 are shown as triangular in shape and comprising resilient prongs, respectively, other configurations of stoppers or latches that serve to capture and retain a component in releasable fashion should be considered as being within the scope of the invention. Many modifications and variations of the present invention are possible in light of the above teachings. It is therefore to be understood that within the scope of appended claims, the invention may be practiced other than as specifically described. Various modifications, changes and variations may be made in the arrangement, operation and details of construction of the invention disclosed herein without departing from the spirit and scope of the invention. The present disclosure is intended to exemplify and not limit the invention.
Claims
1. A fiber optic interconnect system for mating two or more ferrules in face to face relation comprising: a fiber optic connector for carrying at least one fiber optic cable in a ferrule; at least one connector having internal spring means serving to spring load said ferrule within said connector; said connector operably connecting to an adapter by applying a first pushing force to the connector so as to at least partially compress said internal spring means to provide a mating force for mating said ferrules; and, a push-release coupling mechanism operably associated with said adapter for detachably retaining said connector in operably connected fashion with said adapter until a second pushing force is applied to the adapter in the same direction as the first pushing force, but at a different location, to release the connector from the adapter and push the connector away from the adapter by the force of the internal spring means.
2. A fiber optic interconnect system for operably connecting a connector and an adapter to a panel comprising: at least one connector for carrying one or more optical fibers along a longitudinal axis; an adapter configured to operably connect with said connector, wherein said adapter comprises an adapter coupling mechanism interposed between said adapter and said connector and configured to receive and couple with said connector upon application of an insertion force to the connector so as to removably receive the connector in operably connected fashion; wherein said adapter coupling mechanism uncouples the connector from said adapter upon application of a releasing force in the same direction as the insertion force to said adapter for withdrawal of the connector from the adapter; said adapter coupling means comprising resilient means operably recessed within said adapter so as not to increase the size of the adapter and the connector; a holder operably receiving said adapter and operably connecting to the panel; said holder further comprising a holder coupling mechanism interposed between said holder and said adapter; and, said holder further comprising an aperture for actuation of said holder coupling mechanism for releasing said adapter from said holder.
3. A fiber optic interconnect system for one or more connectors comprising: one or more connectors for carrying at least one fiber optic cable in each connector; said connector configured to operably and releasably connect with an adapter; at least one adapter operably and releasably connected to at least one holder; said at least one adapter having the same size and shape, regardless of the number of connectors simultaneously coupled and being configured to be operably and releasably connected with any of said holders configured for any number of adapters; an adapter push-release connection mechanism operably interposed between said . connector and said adapter for releasing said connector from said adapter; and wherein a holder push-release connection mechanism is interposed between said adapter and said holder for releasing said adapter from said holder.
4. A fiber optic interconnect system comprising: at least one connector for carrying at least one fiber optic cable; at least one multi-position holder connected to a panel and operably receiving a plurality of adapters therein; said adapters each having the same configuration for receiving at most one of said connectors at each end of the adapter; at least one of said adapters having a spring- loaded release tab operably attached thereto; at least one connector having a cable attached to one end thereof and attached to one of said plurality of adapters; said adapters being arranged substantially horizontally; and, said release tab not being blocked by said cable.
5. A fiber optic interconnect system for attachment to a panel having a front side and a back side within a chassis, the fiber optic interconnect system comprising: an adapter for operably receiving a front connector on the front side of the panel and receiving a second connector on the opposite side of the adapter on the back side of the panel; a holder operably attaching said adapter to the panel; a push-release connecting and removal mechanism operably associated with said holder and said adapter for separating said adapter from said holder from the front side of said panel; and said connecting and removal mechanism providing access to said opposite side of the adapter and the second connector from the front side of the panel for cleaning and inspection of said opposite side of the adapter and the second connector without opening the chassis.
6. A fiber optic interconnect system comprising: an adapter for mounting to a panel having front and back sides; a holder for mounting said adapter to said panel; a connector operably connected to said adapter on the back side of the panel; a push-release connecting and removal mechanism operably interposed between the adapter and the holder for releasing said adapter from said holder; said push-release connecting and removal mechanism comprises stopper means on said adapter and resilient latch means on said holder for detachably retaining said adapter in operably connected fashion with said holder; and, wherein said adapter and said back connector are removed from the front side of the panel when said adapter is released from the holder.
7. A fiber optic interconnect system comprising: a connector: said connector having a ferrule requiring finishing of a face thereof and having at least one aperture in said ferrule for receipt of at least one alignment pin after assembly thereof; said pin having a chamfer thereon; a pinholder operably adjacent to the ferrule; said pinholder having a chamfer corresponding to the chamfer on the pin for receipt thereof; said pinholder having a stop wall to stop the alignment pin in the desired position; and, wherein whether to configure the connector as a male or female is delayed until after termination is completed.
8. A method for a fiber optic interconnect system of connecting and releasing a connector from an adapter having a release tab and resilient latch means, said connector having a push tab and stopper means, the method comprising: applying an insertion force at the push tab of said connector towards said adapter until said stopper means is received by the resilient latch means of the adapter; engaging the stopper means of the connector with the resilient latch means of the adapter in an operable fashion; and, applying a releasing force in the same direction as the insertion force at the release tab of said adapter to release the stopper means of the connector from the resilient latch means of the adapter.
9. A method for a fiber optic interconnect system of connecting and releasing an adapter having stopper means from a holder having a release opening and resilient latch means, the method comprising: applying an insertion force to said adapter towards said holder until said stopper means of the adapter are received by the resilient latch means of the holder; engaging the stopper means of the adapter with the resilient latch means of the holder in an operable fashion; and, applying a removing force to a release mechanism through said release opening to release the stopper means of the adapter from the resilient latch means of the holder.
10. A fiber optic interconnect system comprising: a first connector for carrying at least one fiber optic cable and containing a resilient member operably associated therewith; an adapter configured to operably and releasably connect with said first connector and mate said first connector with a second connector; said resilient member being compressed when said adapter connects with said first connector and expanding and generating a releasing force when said first connector is released from the adapter; said resilient member further providing a mating force when said first connector is mated to said second connector; a first push-release connection mechanism operably interposed between said first connector and said adapter for releasing said first connector from said adapter; said releasing force serving to push said first connector away from said adapter when said first connector is released from said adapter; a holder for operably and releasably connecting with said adapter; and, a holder push-release connection mechanism operably interposed between said adapter and said holder for releasing said adapter from said holder.
11. The fiber optic interconnect system of Claim 2 further comprising: a first location on said connector for application of said insertion force to the connector; a second location on said adapter for application of said releasing force to said adapter; and, wherein said insertion force and releasing forces are applied in substantially the same direction and at different locations.
12. The fiber optic interconnect system of Claim 11 wherein said different locations at which said forces are applied are in close proximity to each other.
13. The fiber optic interconnect system of Claim 4 wherein said releasing tab is substantially flush with the front of the adapter.
14. The fiber optic interconnect system of Claim 2 wherein said resilient means includes means for uncoupling said connector from said adapter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08827546A EP2183626A4 (en) | 2007-08-13 | 2008-08-12 | High density fiber optic interconnect system with push-release mechanism and method for using same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/837,997 | 2007-08-13 | ||
US11/837,997 US7717625B2 (en) | 2007-08-13 | 2007-08-13 | High density fiber optic interconnect system with push-release mechanism and method for using same |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009023673A2 true WO2009023673A2 (en) | 2009-02-19 |
WO2009023673A3 WO2009023673A3 (en) | 2009-06-11 |
Family
ID=40351441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2008/072916 WO2009023673A2 (en) | 2007-08-13 | 2008-08-12 | High density fiber optic interconnect system with push-release mechanism and method for using same |
Country Status (3)
Country | Link |
---|---|
US (1) | US7717625B2 (en) |
EP (1) | EP2183626A4 (en) |
WO (1) | WO2009023673A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014118221A1 (en) * | 2013-01-29 | 2014-08-07 | Tyco Electronics Raychem Bvba | Fiber optic connection system |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5883995A (en) | 1997-05-20 | 1999-03-16 | Adc Telecommunications, Inc. | Fiber connector and adapter |
US11493701B2 (en) | 2010-10-22 | 2022-11-08 | Panduit Corp. | Optical communications connectors |
JP5594083B2 (en) * | 2010-11-19 | 2014-09-24 | ソニー株式会社 | Optical fiber adapter and laser device |
US8845206B2 (en) * | 2011-03-29 | 2014-09-30 | International Business Machines Corporation | Apparatus for plugging multiple connectors with spring loaded sleeves into an adapter simultaneously |
TWI432810B (en) * | 2011-09-30 | 2014-04-01 | Ezontek Technologies Co Ltd | Optical fiber adapter with shutter member |
US9417406B2 (en) | 2012-08-31 | 2016-08-16 | Corning Cable Systems Llc | Cable assemblies and optical connector assemblies employing a unitary alignment pin and translating element |
US10139573B2 (en) | 2012-08-31 | 2018-11-27 | Corning Optical Communications LLC | Cable assemblies, optical connector assemblies, and optical connector subassemblies employing a unitary alignment pin and cover |
TWI544245B (en) * | 2012-12-04 | 2016-08-01 | 鴻海精密工業股份有限公司 | Optical fiber coupled connecter |
TWI561876B (en) * | 2013-01-14 | 2016-12-11 | Hon Hai Prec Ind Co Ltd | Optical communication |
DE102014118172B3 (en) * | 2014-12-08 | 2015-07-16 | Balluff Gmbh | IO-Link adapter |
US9411111B2 (en) * | 2014-12-09 | 2016-08-09 | Sae Magnetics (H.K.) Ltd. | Pluggable optical connector, lock and release mechanism therefor |
US9817194B2 (en) * | 2015-07-08 | 2017-11-14 | US Conec, Ltd | Fiber optic ferrule with rear holes to align a guide pin clamp with field changeable guide pins |
US10606006B2 (en) * | 2016-09-20 | 2020-03-31 | Clearfield, Inc. | Optical fiber distribution systems and components |
US10859781B2 (en) | 2016-09-20 | 2020-12-08 | Clearfield, Inc. | Optical fiber distribution systems and components |
CN106646759A (en) * | 2016-11-04 | 2017-05-10 | 潮州三环(集团)股份有限公司 | Guide pin and preparation method thereof |
TWI608261B (en) * | 2016-11-29 | 2017-12-11 | 普泰光電股份有限公司 | Optical fiber adapter with shutter member |
US11822133B2 (en) | 2017-07-14 | 2023-11-21 | Senko Advanced Components, Inc. | Ultra-small form factor optical connector and adapter |
US10281668B2 (en) | 2017-07-14 | 2019-05-07 | Senko Advanced Components, Inc. | Ultra-small form factor optical connectors |
US10718911B2 (en) | 2017-08-24 | 2020-07-21 | Senko Advanced Components, Inc. | Ultra-small form factor optical connectors using a push-pull boot receptacle release |
US10705300B2 (en) | 2017-07-14 | 2020-07-07 | Senko Advanced Components, Inc. | Small form factor fiber optic connector with multi-purpose boot assembly |
US10838152B2 (en) | 2017-11-17 | 2020-11-17 | Senko Advanced Components, Inc. | Ultra-small form factor optical connector having dual alignment keys |
US11002923B2 (en) | 2017-11-21 | 2021-05-11 | Senko Advanced Components, Inc. | Fiber optic connector with cable boot release having a two-piece clip assembly |
EP3811136A4 (en) | 2018-06-19 | 2022-03-23 | CommScope Technologies LLC | Multi-fiber fiber optic connector having enhanced functionality |
US11073664B2 (en) | 2018-08-13 | 2021-07-27 | Senko Advanced Components, Inc. | Cable boot assembly for releasing fiber optic connector from a receptacle |
US10921531B2 (en) | 2018-09-12 | 2021-02-16 | Senko Advanced Components, Inc. | LC type connector with push/pull assembly for releasing connector from a receptacle using a cable boot |
US10921530B2 (en) | 2018-09-12 | 2021-02-16 | Senko Advanced Components, Inc. | LC type connector with push/pull assembly for releasing connector from a receptacle using a cable boot |
US11086087B2 (en) | 2018-09-12 | 2021-08-10 | Senko Advanced Components, Inc. | LC type connector with clip-on push/pull tab for releasing connector from a receptacle using a cable boot |
US11340406B2 (en) | 2019-04-19 | 2022-05-24 | Senko Advanced Components, Inc. | Small form factor fiber optic connector with resilient latching mechanism for securing within a hook-less receptacle |
US11314024B2 (en) | 2019-06-13 | 2022-04-26 | Senko Advanced Components, Inc. | Lever actuated latch arm for releasing a fiber optic connector from a receptacle port and method of use |
EP4031915A4 (en) * | 2019-09-17 | 2023-10-18 | US Conec, Ltd | Ferrule push |
US20210181433A1 (en) * | 2019-12-13 | 2021-06-17 | US Conec, Ltd | Cover for a fiber optic ferrule and ferrule push |
AU2021257751A1 (en) | 2020-04-15 | 2022-12-01 | Corning Research & Development Corporation | An interconnect system and methods of installing the same |
CN112051644B (en) * | 2020-08-31 | 2022-12-30 | 华为技术有限公司 | Optical fiber adapter, optical fiber connector plug, connector assembly and communication equipment |
US11199669B1 (en) * | 2020-09-24 | 2021-12-14 | Hewlett Packard Enterprise Development Lp | Modular faceplate optical sub-assembly |
Family Cites Families (46)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4026624A (en) | 1976-09-03 | 1977-05-31 | Ford Motor Company | Locking structure for electrical connectors |
US4361375A (en) | 1980-09-15 | 1982-11-30 | Switchcraft, Inc. | Miniature audio connector |
JPS61213811A (en) | 1985-03-19 | 1986-09-22 | Sumitomo Electric Ind Ltd | Optical connector |
JPS6325605A (en) | 1986-07-18 | 1988-02-03 | Nippon Telegr & Teleph Corp <Ntt> | Optical connector |
US4900263A (en) | 1989-02-06 | 1990-02-13 | Molex Incorporated | Positive connector latch |
US5004431A (en) | 1989-02-06 | 1991-04-02 | Molex Incorporated | Reinforced connector latch |
US5082344A (en) | 1990-03-09 | 1992-01-21 | Mulholland Denis G | Adapter assembly with improved receptacle for a push-pull coupling type of optical fiber connector |
AU635172B2 (en) | 1991-05-13 | 1993-03-11 | Nippon Telegraph & Telephone Corporation | Multifiber optical connector plug with low reflection and low insertion loss |
US5418875A (en) | 1992-09-04 | 1995-05-23 | Honda Tsushin Kogyo Co., Ltd. | Adapter for optical connector having float-type sleeve holder and panel fitting for mounting the same |
US5317663A (en) | 1993-05-20 | 1994-05-31 | Adc Telecommunications, Inc. | One-piece SC adapter |
US5734778A (en) | 1994-11-03 | 1998-03-31 | Loughlin; John P. | Variable attenuator connector |
US5588079A (en) | 1995-02-17 | 1996-12-24 | Nec Corporation | Optical connector |
TW358552U (en) | 1995-08-02 | 1999-05-11 | Molex Inc | Adapter for interconnecting optical fiber connectors |
KR0184963B1 (en) | 1995-10-31 | 1999-05-15 | 유기범 | Connector assembly for multi-core optical cable connection |
EP0842735A1 (en) | 1996-11-15 | 1998-05-20 | W.L. GORE & ASSOCIATES GmbH | Ferrule folder and ferrule grinding apparatus |
US5883995A (en) | 1997-05-20 | 1999-03-16 | Adc Telecommunications, Inc. | Fiber connector and adapter |
US6247850B1 (en) | 1998-11-02 | 2001-06-19 | The Whitaker Corporation | Multiple fiber splice element and connector |
US6200040B1 (en) | 1997-11-13 | 2001-03-13 | Tyco Electronics | Fiber splaying pin keeper for fiber optic connector |
JPH11218644A (en) | 1997-11-13 | 1999-08-10 | Whitaker Corp:The | Optical fiber device and optical fiber subassembly |
US5926596A (en) | 1998-01-28 | 1999-07-20 | The Whitaker Corporation | Overmolded alignment ferrule |
US6422759B1 (en) | 1998-05-29 | 2002-07-23 | Tyco Electronics Corporation | Fiber optic connector |
US6290527B1 (en) | 1998-07-03 | 2001-09-18 | Nippon Telegraph And Telephone Corp. | Nippon telegraph and telephone corporation |
JP3553805B2 (en) * | 1998-08-03 | 2004-08-11 | 矢崎総業株式会社 | Connector mating structure |
US6634796B2 (en) | 1999-06-30 | 2003-10-21 | Corning Cable Systems Llc | Polarity reversal for fiber optic connections |
US6409393B1 (en) | 2000-02-18 | 2002-06-25 | Molex Incorporated | Fiber optic connector assembly and method of assembly |
JP2001242339A (en) | 2000-03-01 | 2001-09-07 | Nippon Sheet Glass Co Ltd | Optical fiber lens array |
JP2001345148A (en) * | 2000-05-31 | 2001-12-14 | Yazaki Corp | Half fitting preventive connector |
US6428215B1 (en) | 2000-12-27 | 2002-08-06 | Adc Telecommunications, Inc. | Tunable fiber optic connector and method for assembling |
TW498980U (en) | 2001-02-13 | 2002-08-11 | Conn Technology Inc U | Optical fiber connector capable of pre-assembling and polishing |
USD476624S1 (en) | 2001-03-14 | 2003-07-01 | Honda Tsushin Kogyo Co. Ltd. | Light connector with a shutter (double horizontal type) |
US7036993B2 (en) | 2001-06-11 | 2006-05-02 | Corning Cable Systems Llc | Pin retainer for fiber optic connector and associated fabrication method |
DE10141449A1 (en) | 2001-08-23 | 2003-03-13 | Krone Gmbh | Universal Adapter |
US6505976B1 (en) | 2001-10-11 | 2003-01-14 | Molex Incorporated | Alignment pin assembly for fiber optic connectors |
US6702475B1 (en) * | 2002-05-07 | 2004-03-09 | Cisco Technology, Inc. | Release system for optical connectors |
JP4142891B2 (en) | 2002-05-09 | 2008-09-03 | 株式会社精工技研 | Angled PC connector |
US6814499B2 (en) | 2002-11-13 | 2004-11-09 | Itt Manufacturing Enterprises, Inc. | Optical fiber connector latching mechanism |
JP2004191564A (en) | 2002-12-10 | 2004-07-08 | Mitsubishi Electric Corp | Optical path converting connector |
US6776645B2 (en) * | 2002-12-20 | 2004-08-17 | Teradyne, Inc. | Latch and release system for a connector |
US6918704B2 (en) | 2003-01-30 | 2005-07-19 | Panduit Corp. | Tunable fiber optic connector |
US7008117B2 (en) | 2003-12-23 | 2006-03-07 | Amphenol Corporation | Optical connector assembly with features for ease of use |
US20050281509A1 (en) | 2004-06-18 | 2005-12-22 | 3M Innovative Properties Company | Optical connector system with EMI shielding |
RU2292074C2 (en) | 2004-09-27 | 2007-01-20 | Самсунг Электроникс Ко., Лтд. | Method and device for forming of initial value of pseudorandom number generator |
US7261472B2 (en) | 2005-01-12 | 2007-08-28 | Illum Technologies, Inc. | Ultra-small, form factor single fiber optical interconnect system, with push-push type insertion/withdrawal mechanism and shuttered modular connector and shuttered adapter and method for using same |
US7284912B2 (en) * | 2005-01-12 | 2007-10-23 | Illum Technologies, Inc. | Multi fiber optical interconnect system, with push—push type insertion/withdrawal mechanism, MT-type connector and shuttered adapter and method for using same |
US7537393B2 (en) | 2005-06-08 | 2009-05-26 | Commscope, Inc. Of North Carolina | Connectorized fiber optic cabling and methods for forming the same |
US7234875B2 (en) | 2005-11-02 | 2007-06-26 | Stratos International, Inc. | Rugged MT-MT connector |
-
2007
- 2007-08-13 US US11/837,997 patent/US7717625B2/en not_active Expired - Fee Related
-
2008
- 2008-08-12 WO PCT/US2008/072916 patent/WO2009023673A2/en active Application Filing
- 2008-08-12 EP EP08827546A patent/EP2183626A4/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of EP2183626A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014118221A1 (en) * | 2013-01-29 | 2014-08-07 | Tyco Electronics Raychem Bvba | Fiber optic connection system |
US9606299B2 (en) | 2013-01-29 | 2017-03-28 | CommScope Connectivity Belgium BVBA | Fiber optic connection system |
Also Published As
Publication number | Publication date |
---|---|
EP2183626A2 (en) | 2010-05-12 |
US20090046981A1 (en) | 2009-02-19 |
EP2183626A4 (en) | 2011-08-31 |
US7717625B2 (en) | 2010-05-18 |
WO2009023673A3 (en) | 2009-06-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7717625B2 (en) | High density fiber optic interconnect system with push-release mechanism and method for using same | |
US7284912B2 (en) | Multi fiber optical interconnect system, with push—push type insertion/withdrawal mechanism, MT-type connector and shuttered adapter and method for using same | |
US11372189B2 (en) | Low cost hardened fiber optic connection system | |
JP4792043B2 (en) | Multi-core optical fiber interconnection system comprising push-push insertion / extraction mechanism, MT connector, and adapter with shutter, and method of use thereof | |
US10712511B2 (en) | Optical connector with one-piece body | |
US20200301085A1 (en) | Fiber Optic Connector Assembly, Apparatus For Forming A Transceiver Interface, And Ferrule | |
US20170293090A1 (en) | Duplex fiber optic components suitable for polarity reversal | |
AU659193B2 (en) | Push-pull optical fiber connector | |
US5734770A (en) | Cleave and bevel fiber optic connector | |
US10451812B2 (en) | Adapter shutter with integrated connector lock | |
US5682450A (en) | Fiber optic connector element | |
WO1997001784A1 (en) | Bare fiber connector | |
US20170184800A1 (en) | Ferrule for multi-fiber optical connector | |
WO2019055820A1 (en) | Fiber optic connector with boot-integrated release and related assemblies | |
US9146363B2 (en) | Optical fiber adapter with shutter member | |
JP2019113740A (en) | Optical connector | |
WO2006076061A2 (en) | Multi fiber optical interconnect system, with push-push type insertion/withdrawal mechanism, mt-type connector and shuttered adapter and method for using same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08827546 Country of ref document: EP Kind code of ref document: A2 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2008827546 Country of ref document: EP |