Two row plug and receptacle assemblies

Abstract

To provide a new connector at smaller pitches.SOLUTION: A connector system for a pluggable IO connector is disclosed that includes: a plug with two rows of pads on two sides of a mating blade; and a receptacle with two connection regions configured to engage the two rows of pads. In an embodiment, the connector system can support twice the data bandwidth of a general connector, while allowing backward compatibility with conventional plug assemblies 50 that have a single row of pads on each side of the mating blade.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] Related Applications This application claims priority to U.S. Patent Application No. 62 / 222,310, filed Sep. 23, 2015, which is incorporated herein by reference in its entirety.

[0002] The present disclosure relates to the field of input / output ("IO") connectors, and more particularly, to the field of IO connectors capable of high data rates. [Background technology]

[0003] IO connectors are commonly used to support network and server applications. Known IO connectors include SFP, QSFP, CXP, and XFP style connectors, to name a few. One problem that arises from existing styles of connectors is that each style is popular for certain applications. SFP connectors are 1X connectors (supporting one transmit and one receive channel) and are suitable for applications where a single communication channel is sufficient. CXP is a 12X connector and is desirable when multiple, higher communication channels are required. QSFP is a 4X connector and is therefore a popular choice for many applications as it provides sufficient bandwidth and front panel density to satisfy a wide range of applications. Thus, QSFP connectors have become the preferred style for some applications. An embodiment of a QSFP style plug assembly 10 (as shown in FIG. 1 ) includes a cable 15 connected to a body 20 that includes an upper flange 21 and a lower flange 22. The upper and lower flanges 21, 22 help protect a mating blade 23, which is typically formed as a circuit board, and the cable 15 may include wires that terminate at the mating blade 23 in a conventional manner.

[0004] Although QSFP style connectors are suitable for many applications, it would be desirable to provide greater front panel density. New connector designs with smaller pitches have been proposed that should help satisfy the connector design needs in a wide range of applications. However, a significant number of cable assemblies, including passive and active cable assemblies, exist for QSFP style connectors, so it would be beneficial to eliminate the need to discard previous designs. Therefore, certain individuals would evaluate ways to provide increased front panel density while maintaining compatibility with existing QSFP designs. Summary of the Invention [Means for solving the problem]

[0005] A receptacle assembly is disclosed that includes a connector within a cage. The connector includes a first connection region and a second connection region, each connection region including opposing rows of terminals. One of the connection regions may be configured to mate with a single row of pads and may be compatible with a mating blade of a standard connector. The combination of the first and second connection regions may be configured to mate with a higher density plug assembly that includes a mating blade configured with two rows of pads. The receptacle assemblies may be stacked to provide two ports, each port may include a module that supports two connection regions. The cage may be configured to improve cooling of any inserted plug assembly by flowing air through the cage.

[0006] A plug assembly is disclosed that includes a body having an upper flange, a lower flange, and a mating blade located between the two flanges. A first row of pads and a second row of pads may be provided on two sides of the mating blade. The upper flange faces toward the circuit card and has a bottom surface that includes a first and a second level, the first level being closer to the mating blade than the second level. The lower flange may be substantially shorter than the circuit card and configured such that the lower flange covers one row of pads but not the second row of pads.

[0007] In operation, the connector system may provide backward compatibility between the receptacle assembly and existing plug assemblies while allowing for higher density connections between the receptacle assembly and plug assemblies configured to increase data efficiency. In some embodiments, the connector system may be a QSFP style connector. [Brief description of the drawings]

[0008] The present invention is illustrated by way of example and not limitation in the accompanying drawings, in which like reference numbers indicate similar elements and in which:

[0009] [Figure 1] 1 illustrates an embodiment of a prior art QSFP style plug assembly. [Diagram 2] FIG. 1 is a perspective view of two plug assemblies. [Diagram 3] FIG. 1 is a perspective view of an embodiment of a plug assembly. [Figure 4] FIG. 4 is another perspective view of the embodiment shown in FIG. [Diagram 5] FIG. 13 is a bottom view of an end of an embodiment of a plug connector. [Figure 6] FIG. 6 is an elevated side view of the embodiment shown in FIG. 5. [Figure 7] FIG. 1 is a simplified perspective view of an embodiment of a plug assembly. [Figure 8] FIG. 2 is a partially exploded perspective view of the connector system. [Figure 9]FIG. 9 is a perspective view of the embodiment shown in FIG. 8 with the plug assembly inserted into the receptacle assembly. [Figure 10] FIG. 1 is a perspective view of an embodiment in which two plug assemblies are inserted into a receptacle assembly with the cage partially removed. [Figure 11] FIG. 1 is a simplified perspective view of a terminal row connected to a conventional plug assembly. [Figure 12] FIG. 12 is a perspective view of the embodiment shown in FIG. 11, but with an improved plug assembly connected to both connection regions. [Figure 13] FIG. 12 is an enlarged perspective view of the embodiment shown in FIG. [Figure 14] FIG. 13 is an enlarged perspective view of the embodiment shown in FIG. [Figure 15] FIG. 1 is a simplified perspective view of an upper plug assembly with only the mating blades shown and two plug assemblies mated within first and second ports. [Figure 16] FIG. 16 is a further enlarged simplified perspective view of the embodiment shown in FIG. 15. [Figure 17] FIG. 1 is a simplified perspective view of another embodiment of two plug assemblies, one of which is mated to a connector. [Figure 18] FIG. 1 is a simplified perspective view of two terminals in two separate rows engaging pads in two rows of pads. [Figure 19] FIG. 19 is a plan view of the embodiment shown in FIG. [Figure 20] FIG. 13 is a simplified perspective view of two partial terminal rows engaging two pad rows. [Figure 21] FIG. 21 is an elevated simplified side view of the embodiment shown in FIG. 20. [Figure 22] FIG. 1 is a perspective view of an embodiment of a receptacle assembly. [Figure 23] FIG. 23 is a simplified perspective view of the embodiment shown in FIG. [Figure 24] FIG. 1 is a perspective view of an embodiment of a connector. [Diagram 25] FIG. 25 is another perspective view of the embodiment shown in FIG. 24. [Figure 26]FIG. 2 is a perspective view of a connector and a divider. [Figure 27] FIG. 27 is a cross-sectional perspective view of the embodiment shown in FIG. 26 taken along line 27-27. [Figure 28] FIG. 2 is a partially exploded perspective view of an embodiment of a connector. [Figure 29] FIG. 1 is a simplified perspective view of an embodiment of a connector. [Diagram 30] FIG. 2 is an exploded perspective view of two modules and two vertical modules. [Diagram 31] FIG. 2 is a perspective view of the module with the frame removed. [Diagram 32] FIG. 2 is an exploded perspective view of an embodiment of a module. [Diagram 33] FIG. 33 is a cross-sectional perspective view of the module taken along line 33-33 of FIG. 30. [Diagram 34] FIG. 34 is a cross-sectional perspective view of the module taken along line 34-34 of FIG. 30. [Diagram 35] FIG. 2 is a perspective view of two vertical modules. [Diagram 36] 1 is a perspective view of an embodiment of a module and a vertical module. FIG. [Figure 37] FIG. 37 is a simplified perspective view of the embodiment shown in FIG. 36. [Figure 38] FIG. 38 is another perspective view of the embodiment shown in FIG. 37. [Figure 39] FIG. 39 is an enlarged perspective view of the embodiment shown in FIG. 38. [Diagram 40] FIG. 2 is a partial perspective view of an embodiment of a terminal row. [Diagram 41] FIG. 13 is a partial perspective view of a terminal row engaging a mating surface. [Diagram 42] FIG. 2 is a partial perspective view of an embodiment of a terminal array connected to a conductor in a cable. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The following Detailed Description describes exemplary embodiments and is not intended to be limiting to the combinations expressly disclosed. Thus, unless otherwise indicated, features disclosed herein can be combined together to form further combinations that were not otherwise shown for the sake of brevity.

[0011] The disclosed embodiments show features that may be included in a high density QSFP type connector system. As will be appreciated, although a stacked receptacle assembly including top and bottom ports is disclosed, single port connectors may also be provided. Additionally, clustered versions may also be provided by increasing the number of connectors shown and creating cages with two or more ports arranged side-by-side. It should be noted that although the illustrated embodiments are configured to be compatible with QSFP type connectors, the present disclosure is not so limited. Other known or emerging standards such as SFP or XSFP are also believed to be compatible with the features and discussion provided herein, and the type of connector is not intended to be limiting unless otherwise specified.

[0012] As will be appreciated, the receptacle assembly includes a two-part housing. A first set of wafers supports vertical terminals. The vertical terminals include tails but no contacts. A second set of wafers supports horizontal terminals. The horizontal terminals include contacts but no tails. When the first and second sets of wafers are pressed together, an electrical connection exists between the tails and the contacts.

[0013] The system is designed to support a 25 Gbps data rate for each differential channel, thus providing the capability to support a 200 Gbps system, compared to existing QSFP systems that can support 100 Gbps through 25 Gbps differential channels.

[0014] As will be appreciated, the receptacle assembly is configured to improve airflow so that the system may be cooled while supporting the light pipes. The central member includes an open channel that allows air to flow between the upper and lower ports. The central member includes a central divider and openings in the two side walls. The back wall of the cage may include openings that allow air to flow into (or out of, depending on whether the airflow is front-to-back or back-to-front) the connector in an efficient manner.

[0015] 2-7, a plug assembly 50 is disclosed. The plug assembly 50 includes a body 55 supporting a release member 56 that is connected to a latch-type system 57. Translation of the release member 56 actuates the latch-type system 57. The body 55 includes an upper flange 60 having a forward end 60c, a lower flange 65 having a forward end 66, and a mating blade 70 having a forward end 77 located between the upper flange 60 and the lower flange 65. As will be appreciated, the upper flange 60 may include a notch or may be configured to have a particular shape to mate with a corresponding receptacle assembly system. Thus, the shapes shown are not required and may be modified as needed.

[0016] The upper flange 60 includes a first lower surface 60a and a second lower surface 60b that are offset from the second lower surface 60b such that a first distance between the first lower surface 60a and the mating blade 70 is less than a second distance between the second lower surface 60b and the mating blade.

[0017] The mating blade 70 includes a top surface 70a supporting a first row of pads 72, a second row of pads 74, and a third row of pads 76 located between the first row of pads 72 and the second row of pads 74. The mating blade 70 also includes a bottom surface 70b supporting a fourth row of pads 72', a fifth row of pads 74', and a sixth row of pads 76' located between the first row of pads 72' and the second row of pads 74'. As will be appreciated, the fourth, fifth, and sixth rows of pads may be arranged in the same manner as the first, second, and third rows of pads, but are located on opposite sides of the mating blade 70. In one embodiment, the lower flange 65 just covers the bottom fifth row of pads 74', although the upper flange 60 may cover the first, second, and third rows of pads 72, 74, 76 and may extend beyond the forward end 77. Although not required, one possible advantage of such a configuration is that it allows the plug assemblies to be interchangeable with a system that allows two different plug assemblies to be alternatively inserted into the same port, as disclosed below.

[0018] The first row 72 includes short pads 82 that may be configured as signal pads for higher data rates, and longer pads 81 that may be used as ground pads or lower data rate pads. As shown, the short pads 82 are arranged to provide a differential pair 83. In operation, the first row of pads 72 will slide over and mate with the second connection region 174, while the second row of pads 74 mates with the second connection region (as discussed below). To ensure that the connections between the first and second connection regions 172, 174 are reliable, it has been determined that it is beneficial to include a third row of pads 76 to protect the first connection region. The third row of pads 76 may include long pads 84 located between the two pairs of short pads, and may further include medium pads 85 located between the long pads 81. Of course, the configuration shown contemplates that the first row of pads 72 and the second row of pads 74 are configured substantially the same. Where such a configuration is not required, the third row of pads 76 may have a different configuration of pads. In any event, it is preferred that the pads in the third row of pads 76 are longer than the short pads 82 in the first and second rows of pads 72, 74 to ensure good electrical isolation between the first row of pads 72 and the second row of pads 74.

[0019] It should be noted that although the plug assembly is shown as a copper-based configuration, it may easily be provided as a copper / optical solution (e.g., a transceiver). In such a configuration, the internal components of the plug would include a desired optical engine (e.g., as available from OPLINK or another provider), as is known, to convert copper signals to optical signals and would be configured to transmit those optical signals over optical fiber.

[0020] As can be appreciated from FIGS. 8-42, the receptacle assembly 100 may be mounted to a circuit board 105 as desired and includes an upper port 110 and a lower port 115. The receptacle assembly 100 includes a connector 150 mounted within a cage 120 that helps define the ports 110, 115 and may be configured to be mounted to the bezel 103. In operation, the plug assembly is inserted into the port in a direction I. The connector includes a mating face 150a and a mounting face 150b. The cage 120 includes a front face 116, a top wall 131, a plurality of side walls 135, a bottom wall 132, and a rear wall 138. The side walls 135 may include a side vent 136, and the rear wall 138 may include a rear vent 139 to facilitate air flow. Accordingly, cage 120 may include vents to allow air to flow through cage 120. Cage 120 may include retention members 122 configured to engage latching system 57 to allow the plug assembly to be releasably mated to the receptacle assembly. As can be appreciated from FIG. 10, the receptacle assembly shown may receive plug assembly 10 or plug assembly 50, which includes two rows of pads or contacts on either the top or bottom port.

[0021] A divider 190 is placed between the upper port 110 and the lower port 115 to more completely define the two ports. The divider 190 includes a first wall 191 and a second wall 192. The first wall 191 helps define the upper port 110 and the second wall 192 helps define the lower port 115. The divider 190 also provides a channel for air to flow between the ports in the direction BB, so that air may travel through the front vent 107 (path AA) in the central wall 106 or through the rear vent (path CC), through path BB, and then through path CC or path AA. If the vent 136 is provided, alternative paths for the air through the vent are also possible. More on air flow below.

[0022] The connector 150 includes a first module 160 and a second module 165, which provide mating contacts located at the upper and lower ports 110, 115, respectively. It should be noted that each of the modules 160, 165 are shown as being different because in some embodiments it is desirable to connect the terminals 230 (or some of the terminals 230) to a supporting circuit board. Thus, as shown, the first module 160 includes a first row of terminals 181 supported by a frame 181a, a second row of terminals 182 supported by a frame 182a, a third row of terminals 183 supported by a frame 183a, and a fourth row of terminals 184 supported by a frame 184a. Similarly, the second module 165 provides a first row of terminals 186 supported by a frame 186a, a second row of terminals 187 supported by a frame 187a, a third row of terminals 188 supported by a frame 188a, and a fourth row of terminals 189 supported by a frame 189a. Each of the frames may include notches 198 to modify the impedance of the terminals.

[0023] The terminals 230 shown have different lengths, but generally have a contact 231, a cantilevered portion 231a, a wide body portion 232a, a narrow body portion 232b, and a tail 233. The tail 233 shown is configured to be pressed against a mating terminal, but may also be configured to be attached to a conductor of a cable assembly, as discussed below. For example, as shown in FIG. 42, the terminals 431 and 432 may be arranged as a differential pair, and a ground terminal 433 may be placed beside the differential pair. A cable 450, which may include a shielding layer 456, may have an insulating layer 455 supporting two conductors 451, 452 that may be attached to the terminals 431, 432 (respectively), and a drain wire 453 may be attached to the ground terminal 433. Attachment between the terminals and the conductors may be made as needed (including but not limited to soldering or welding), thus allowing the terminals to be connected to wires without the need to enter a circuit board. Thus, the tail configuration is not limiting, and the connector 150 configuration shown is not intended to be limiting unless otherwise specified. It will be further recognized that when modules are configured with cable attachments such as those shown in FIG. 42, the same modules may be used repeatedly, and it is also optional as to whether or not the cage is mounted to a circuit board.

[0024] Each module 160, 165 provides two connection areas. Specifically, module 160 includes a first connection area 172 and a second connection area 174, while module 165 includes a first connection area 172' and a second connection area 174'. The first connection area is provided by the contacts of the first terminal row 181 and the second terminal row 184 (which provide rows of opposing contacts), while the second connection area is provided by the contacts of the second terminal row 182 and the third terminal row 183 (which also provide rows of opposing contacts). As will be appreciated, the two terminal rows (terminal rows 186 and 187, or terminal rows 181 and 182 in FIG. 41 shown, when module 160 is used as an example) are configured to engage a mating surface defined by plane M from a first side and at the same time have tails that end on the same first side of plane M. Additionally, two separate rows of terminals will be located and extend along a second side of plane M, and in one embodiment, no rows of terminals will cross plane M.

[0025] In operation, the plug assembly may be inserted into the top port 110 and the mating blade will engage the second connection region 174. If the plug assembly is of a standard design, the mating blade has a single pad row that will only engage the second connection region. If the plug assembly has a two pad row design (e.g., a high density design), the first pad row of the mating blade will engage the second connection region first, and when the plug assembly is fully inserted into the port, the first pad row will slide over the second connection region 174 to engage the first connection region 172. Thus, for a plug assembly having two pad rows of signal contacts on each side, the first pad row 72 will engage the first connection region 172, while the second pad row 74 will engage the second connection region 174. If desired, the first connection region 172' and the second connection region 174' may be similarly configured and operate similarly. This can be seen from FIGS.

[0026] As previously discussed, the upper flange 60 includes a first lower surface 60a and a second lower surface 60b. The modules 160, 165 are configured to support nasal portions 320a, 320b, which may include a first nasal surface 323a configured to be aligned with the first lower surface 60a and a nasal wall 323b providing a transition to a second nasal surface 323c aligned with the second lower surface 60b.

[0027] FIG. 19 shows two differential pairs 229a, 229b engaging the second row of pads 174 and the first row of pads 172, respectively. As can be seen from the figure, the terminals supported by the frame include a cantilevered portion 221 and a supported portion 223. The terminal row 161 (and terminal row 164a) also includes an angled portion 222 that allows the cantilevered portion 221 to be positioned so as to engage a mating blade, while at the same time allowing the supported portion 223 to be positioned at a suitable distance from the terminal row 162 supported by the frame 162a. Thus, as can be seen from FIGS. 20-21, when the second row of terminals 182 is positioned on the row of pads 72, the first row of terminals 181 is positioned on the second row of pads 74. A gap may exist between the third row of pads 76 and the first row of pads 72, which gap may form a pad gap 73. In one embodiment, vertical plane D, located at the intersection between angled portion 222 and cantilevered portion 221, and vertical plane F, located at the intersection between angled portion 222 and supported portion 223, define a horizontal interval, and vertical plane E, aligned with pad gap 73, is located within that interval between vertical planes D and F. Preferably, vertical plane G, aligned with the contact points between the first row of pads and the second row of terminals, will be located outside of that horizontal interval. Note that both connection areas have contact points G, G', and angled portion 222 is between contact points G, G' as shown.

[0028] As will be appreciated, the connector 150 includes a first card slot 331 aligned with the top port 110 and a second card slot 332 aligned with the bottom port 115. The card slots 331, 332 are recessed away from the front face 116, and in one embodiment, the cage has a length L and the card slots are recessed a distance that is at least ⅓L. The connector also includes an upper air passage 345 that provides a ventilation path within the top port. To improve cooling within the bottom port 115, a central member 340 is provided. The central member 340 may be located between the first nose portion 320a that defines the first card slot 331 and the second nose portion 320b that defines the second card slot 332. The central member 340 includes outer walls 340a, 340b each including a side port 342, and the central member 340 further includes a center wall 341 that helps divide and direct air traveling through the divider 190 toward the two outer walls 340a, 340b. Because the outer walls 340a, 340b are recessed relative to the cage, the spacing between the outer walls 340a, 340b, the side walls 135, and the shoulders 321, 322 of the respective nose portions 320a, 320b creates an air tunnel 344 that allows air to flow over the connector 150 and out through the rear vent 139.

[0029] The upper air passage 345 receives a rear section 346 that is attached to the upper air passage 345 and extends the air passage toward the rear wall 138. The second nose portion 320b may be connected to a back bracket 352, which may help provide additional rigidity. However, it should be noted that the first nose portion 320a and the second nose portion 320b need not be of unitary construction and thus may be separately attached to their respective modules and supported by the central member 340. As will be appreciated, the illustrated nose portions 320a, 320b include terminal grooves 326 that help support contact with the comb-like structure. Although the terminal grooves 326 are not required, it is beneficial to provide them in the connection area that forms the first contact with the mating blade that is inserted in the I direction.

[0030] For mounting the modules 160, 165 to the circuit board, vertical modules 205, 210 are provided. As can be appreciated from Figure 30, the vertical modules shown provide a stepped configuration, allowing the terminals of the wafers 206, 207, 211 to engage the tails of the terminal rows supported by the frame.

[0031] It should also be noted that although a stacked configuration is shown, a single port configuration is also contemplated. For example, module 165 and vertical module 210 may be used by themselves to provide a single port design (as compared to a stacked configuration). In such a configuration, a single nose piece may be used and the center module may be omitted. It should also be noted that although a press-fit configuration is shown, SMT mounting variant designs are also contemplated and are within the scope of this disclosure, as one skilled in the art would generally be able to replace the standard press-fit tails with SMT tails.

[0032] Regardless of the attachment type, if any, to the circuit board, terminal 230 is connected to vertical terminal 290. The vertical terminal 290 shown includes a tail 291, a shoulder 292, and a vertical riser 293 configured to engage tail 233. As shown, the engagement is an interference fit between vertical riser 293 and opening 233a.

[0033] The disclosure provided herein describes features in terms of preferred exemplary embodiments thereof, and numerous other embodiments, modifications, and variations within the scope and spirit of the appended claims will occur to those skilled in the art from a consideration of this disclosure.

Claims

1. 1. A receptacle assembly comprising: a cage that helps define a port, the cage including a front wall, a top wall, a plurality of side walls, and a rear wall; a connector mounted within the cage, the connector including a card slot aligned with the port, a first pair of opposing contacts, and a second pair of opposing contacts; the card slot is recessed within a port behind the front face; the first pair of opposing contacts are configured to mate with opposing pads at a first connection region; a second pair of opposing contacts configured to mate with opposing pads in a second connection area forward of the first connection area; the first pair of opposing contacts are provided by a first set of terminals and the second pair of opposing contacts are provided by a second set of terminals cantilevered to define a cantilevered portion; the second set of terminals includes an upper row of terminals and a lower row of terminals; the upper row of terminals being supported by a first frame and the lower row of terminals being supported by a second frame; A receptacle assembly, wherein the first frame and the second frame are separate members.

2. 2. The receptacle assembly of claim 1, wherein the cantilevered portions of the second set of terminals originate from the first connection area and point forward.

3. 3. The receptacle assembly of claim 2, wherein the first and second sets of terminals include tails configured to enable the receptacle assembly to be mounted to a circuit board by a press fit.

4. 3. The receptacle assembly of claim 2, wherein the first and second sets of terminals include tails, the tails of the first set of terminals being located between the tails of the second set of terminals.

5. 2. The receptacle assembly of claim 1, wherein the upper row of terminals are connected to upper row tails and the lower row of terminals are connected to lower row tails, the upper row tails and the lower row tails being supported by a vertical module.

6. The receptacle assembly of claim 5 , wherein the first and second frames extend in a front-to-back direction and the vertical module extends in a top-to-bottom direction.

7. The receptacle assembly of claim 5 , wherein the vertical module comprises a plurality of wafers.

8. 2. The receptacle assembly of claim 1, wherein the upper row of terminals are electrically coupled to the upper row of tails and the lower row of terminals are electrically coupled to the lower row of tails, the upper row of tails and the lower row of tails being supported by a vertical module.

9. 1. A receptacle assembly comprising: a cage that helps define a port, the cage including a front wall, a top wall, a plurality of side walls, and a rear wall; a connector mounted within the cage, the connector including a first set of terminals and a second set of terminals; the first set of terminals includes opposing contacts configured to mate with opposing pads on a mating blade at a first connection region; the second set of terminals includes opposing contacts configured to mate with opposing pads on the mating blade at a second connection region; the second connection area is located in the cage forward of the first connection area, the first connection area being located rearward of the front surface of the cage; the second set of terminals includes an upper row of terminals and a lower row of terminals; the upper row of terminals being supported by a first frame and the lower row of terminals being supported by a second frame; A receptacle assembly, wherein the first frame and the second frame are separate members.

10. 10. The receptacle assembly of claim 9, wherein the upper row of terminals are cantilevered by the first frame to define a cantilevered portion of the upper row of terminals, the cantilevered portion beginning at the first connection area and directed forward.

11. 11. The receptacle assembly of claim 10, wherein a portion of the upper row of terminals are embedded in the first frame and cantilevered portions of the first set of terminals are not embedded in the first frame.

12. The receptacle assembly of claim 11 , wherein the upper row of terminals further includes an angled portion.

13. The receptacle assembly of claim 9 , wherein the lower row of terminals are cantilevered by the second frame to define a cantilevered portion.

14. 14. The receptacle assembly of claim 13, wherein a portion of the lower row of terminals are embedded in the second frame and cantilevered portions of the second set of terminals are not embedded in the second frame.

15. The receptacle assembly of claim 14 , wherein the lower row of terminals further includes an angled portion.

16. 10. The receptacle assembly of claim 9, wherein the upper row of terminals are cantilevered by the first frame to define a cantilevered portion beginning at the first connection area and extending forward.

17. 17. The receptacle assembly of claim 16, wherein a portion of the upper row of terminals are embedded in the first frame and cantilevered portions of the first set of terminals are not embedded in the first frame.

18. 10. The receptacle assembly of claim 9, wherein the lower row of terminals are cantilevered by the second frame to define a cantilevered portion beginning at the first connection area and extending forward.

19. 20. The receptacle assembly of claim 18, wherein a portion of the lower row of terminals are embedded in the second frame and cantilevered portions of the second set of terminals are not embedded in the second frame.

20. 10. The receptacle assembly of claim 9, wherein the first and second sets of terminals include pin-eye tails configured to allow the receptacle assembly to be mounted to a circuit board by a press fit.

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