Abstract: A receptacle connector assembly includes a receptacle cage having cage walls defining first, second, and third module channels in a stacked arrangement. The cage walls include a top wall, a first side wall, a second side wall, a first separator panel, and a second separator panel. The first and second side wall extend along opposite sides of the first, second and third module channels. The first separator panel is located between the first and second module channels. The second separator panel is located between the second and third module channels. The receptacle connector assembly includes a first receptacle module in the first module channel for mating with a first plug module, a second receptacle module in the second module channel for mating with a second plug module, and a third receptacle module in the third module channel for mating with a third plug module.

Abstract: A housing for an electronic device includes a panel, where the panel includes a window. A cage includes a plurality of panels and a first end and a second end that opposes the first end. The cage further includes an opening at its first end and an enclosure disposed between the panels of the cage. Connecting structure is disposed at the first end of the cage, where the connecting structure secures the first end of the cage to the panel. The cage is suitably dimensioned to receive and retain a portion of an optical module within the enclosure when the optical module is inserted within the opening at the first end of the cage.

Abstract: An electrical connector assembly includes an electrical connector and a metal shielding shell. The electrical connector includes an insulating body and a number of conductive terminals. The insulating body includes a slot. Each conductive terminal includes an elastic abutting portion for abutting against the circuit board. The metal shielding shell includes a receiving cavity for receiving a mating connector. When the mating connector is inserted into the receiving cavity and has not yet made contact with the conductive terminals of the electrical connector, a better shielding effect can be achieved. Besides, by electrically connecting the conductive terminals and the circuit board in a mutually abutting manner, the requirement on the complexity of the circuit board manufacturing process is reduced.

Abstract: A shielding housing includes a receptacle configured to receive an electrical connector assembly including an electrical connector and a mating connector connected to the electrical connector. The receptacle is formed as a straight passage with an opening at each end of the straight passage. Either end of the straight passage receives one of the electrical connector and the mating connector along a mating axis coaxial with the straight passage.

Abstract: A length of a protection wall, which is greater than a length of projection of a connecting end portion of a plug connector from opening end portions of an upper case as well as a lower case of an optical module, is set to be smaller than an interval between a contact surface of each of lower stopper pieces of a receptacle cage to come into contact with an end surface of a side wall as well as an end surface of an end surface of the lower case and an opening end surface of a slot of a host connector.

Abstract: A communication system having a circuit board with an airflow opening includes a receptacle cage configured to be mounted to the circuit board adjacent a communication connector. The receptacle cage has walls including a front wall, a rear wall and sidewalls defining a cavity. A module channel is defined in the cavity configured to receive a pluggable module. The module channel has a module port at the front wall that receives the pluggable module. An airflow channel is defined by at least one of the walls of the receptacle cage located between the module channel and the circuit board. The airflow channel is configured to be in flow communication with the airflow opening in the circuit board for cooling the pluggable module in the module channel. The airflow channel has an airflow port at the front wall.

Abstract: An electrical connector is used to be electrically connected to a mating component. The electrical connector includes a body having an insertion slot for the mating component to insert therein along a mating direction, and two side walls located at two opposite sides of the insertion slot and extending along an elongated direction perpendicular to the mating direction. A retainer is provided at one end of the body along the elongated direction to buckle with the mating component. Multiple terminals are provided on the two side walls, protruding into the insertion slot to mate with the mating component. A metal member is provided on the body and correspondingly covering one of the side walls. The metal member is provided with at least one through slot provided obliquely relative to the mating direction and adjacent to the retainer in the elongated direction.

Abstract: A receptacle cage includes cage walls extending between a front end and a rear end including a top wall and side walls forming a module channel receiving a pluggable module. The receptacle cage includes a gasket at the front end having EMI springs electrically connected to the cage walls. Each EMI spring has a deflectable portion between a base and a distal end. The distal end is split with a first end beam and a second end beam at the distal end separated by a gap. The deflectable portion is spaced apart from the cage wall and is deflectable toward the cage wall. Each EMI spring has first and second side edges between the base and the distal end. The EMI springs are arranged side-by-side without gaps between adjacent EMI springs.

Abstract: A shielded connector comprises an inner housing accommodating a contact and a shield shell surrounding the inner housing. The inner housing has a catch protrusion. The shield shell has a shell main body formed with an opening extending through the shield shell and a cover tab supported by the shell main body. The catch protrusion is inserted from an inside of the shield shell into the opening and the cover tab covers the opening while being set back from the catch protrusion toward an outside of the shield shell.

Abstract: An energy monitoring and analysis system is provided. Sensors are attached to circuit breakers to collect energy consumption data. The energy consumption data is analyzed to determine events associated with the circuit. An energy monitoring system comprising a paddle having one or more sensors can be affixed to existing circuit breakers and provide communication with the energy analysis system. From the events notifications and alerts can be generated to inform consumers such as a utility, monitoring company or end user.

Abstract: A communication system includes a receptacle connector assembly and a pluggable module. The receptacle connector assembly includes a receptacle cage and a communication connector received in the receptacle cage and mounted to a host circuit board. The communication connector includes a connector housing holding contacts and extending between a front and a rear with a bottom of the connector housing mounted to the host circuit board and a longitudinal card slot open at a top of the connector housing. The pluggable module is received in the module channel in a loading direction and includes a module body and a plug board having a mating edge. The plug board is held in the module body in a vertical orientation with the mating edge at a bottom of the plug board being received in the card slot with the contact pads electrically coupled to corresponding contacts of the communication connector.

Abstract: A small form factor pluggable (SFP) optical transceiver module is provided. It includes a shell assembly that encloses an optical fiber connector configured to connect to a SFP optical transceiver and a retaining mount that is configured to be attached to a body portion of a device housing of a network device. The SFP optical transceiver is configured to interface a network device motherboard to a fiber optic at a given port of the network device. The shell assembly is configured to removably latch onto the retaining mount. The shell assembly includes a base and a body coupled to each other. The body has a latch to securely attach the optical fiber connector and the SFP optical transceiver to the retaining mount while allowing the SFP optical transceiver to be swapped as needed to reconfigure the given port of the network device.

Abstract: An electrical connector includes: a housing having a base and a tongue, the base having a mounting face; plural contacts arranged in the housing and exposed to the tongue, each contact having a contacting portion, a tail portion, and an intermediate portion between the contacting portion and the tail portion, the tail portions of the plural contacts being arranged in a front and rear rows at the mounting face of the housing base; and a shielding shell enclosing the housing and having a pair of rear mounting legs; wherein the shielding shell has a pair of soldering legs at two opposite outer sides of the front row of contact tail portions, respectively, forwardly and inwardly of the pair of rear mounting legs.

Abstract: Apparatuses and associated methods of manufacturing are described that provide a cage receptacle assembly configured to receive a cable connector. The cage receptacle assembly includes a cage body defining a first end and a second end. The cage body includes a top cage member attached to a bottom cage member via two side portions of the top cage member, and the bottom cage member defines an opening. The cage receptacle assembly defines a heat dissipation unit disposed within the opening of the bottom cage member, and the heat dissipation unit includes one or more heat dissipation elements allowing heat to be transferred from the cable connector to an external environment of the cage receptacle assembly.

Abstract: An electrical assembly includes a main body on which the cage assembly and the associated main receptacle connector are mounted. The cage is adapted to receive the FP5 plug module or the QSFP-28 plug module associated with an adaptor. The adaptor includes a housing unitarily formed with the heat sink structure and an intermediate receptacle connector mounted upon an intermediate board wherein the intermediate receptacle connector is adapted to receive the QSFP-28 plug module and the intermediate board is adapted to be received with the main board. The cage includes different latches respectively mutually exclusively locking the FP5 plug module and the QSFP-28 plug module.

Abstract: A substrate configured to be mated with an electrical connector having improved performance data is achieved by reducing the length of the electrical signal contact pads of the substrate with respect to the length of electrical signal contact pads of conventional substrates that are configured to be mated with the electrical connector.

Abstract: A small form-factor pluggable (SFP) transceiver is provided for being inserted into an electrical connection slot of an electronic apparatus. The SFP transceiver includes a housing, two electrical signal connectors disposed a front end of the housing, and an unlocking assembly having an unlocking member and an interlock member. The housing includes an engaging portion disposed on a bottom surface thereof and configured to be engaged with the electrical connection slot, thereby firmly fastening the SFP transceiver into the electrical connection slot. The unlocking member has a manipulating portion exposed at the front end and arranged adjacent to a top surface of the housing. The interlock member is movably disposed on the housing. When the manipulating portion is rotated in a direction away from the front end and the top surface, the unlocking member moves the interlock member to separate the engaging portion from the electrical connection slot.

Abstract: A receptacle connector for two types of plug includes an insulative housing defining a front mating port and a rear connecting port along the front-to-back direction, the front mating port defining a plurality of upper passageways and a plurality of lower passageways with a receiving slot therebetween in the vertical direction, the upper passageways being respectively offset from the corresponding lower passageways in a transverse direction. An IMLA (Insert Molded Lead-Frame Assembly) assembled within a space of the rear connecting port and including a plurality of wafers stacked with one another along the transverse direction, each of said wafers including an insulator equipped with a front upper contact disposed in the corresponding upper passageway, a rear upper contact located behind the corresponding upper passageway, a front lower contact disposed in the corresponding lower passageway, and a rear lower contact located behind the corresponding lower passageway.

Abstract: Daughter card assembly including a circuit board and leading and trailing connectors mounted to the circuit board. The leading and trailing connectors have mating ends that face in different directions along a board plane. The daughter card assembly also includes a support wall that is coupled to the circuit board and extends orthogonal to the circuit board. The support wall has a wall opening therethrough. The trailing connector is positioned on the circuit board such that the mating end substantially aligns with the wall opening. The daughter card assembly also includes a retention shroud that projects from an exterior surface of the support wall. The retention shroud defines a shroud passage that aligns with the wall opening. The shroud and wall openings form a receiving passage for receiving at least one of the trailing connector or a corresponding cable connector that mates with the trailing connector.

Abstract: A gasket assembly structure including a frame which includes a front half and a back half joined together with a plurality of interlocking tabs located around a perimeter of the frame, defining a window, and an electromagnetic gasket, constrained between the front half and the back half of the frame; where the electromagnetic gasket lines an interior perimeter of the window and partially extends from the frame into the window, and a passageway through the window of the frame with boarders defined by the constrained electromagnetic gasket. A housing structure including a receptacle recessed within an opening on a front side of the housing, the receptacle is rigidly attached to the housing, and a gasket assembly recessed within the opening and located between the front side of the housing and the receptacle, where the gasket assembly is directly secured to the housing.

Abstract: In some embodiments, an apparatus includes a land grid array connector positioned above an electrical package. The apparatus also includes a channel housing positioned above the land grid array. The apparatus includes an electrical-to-optical transceiver positioned in an opening of a socket of the channel housing, wherein a tapered opening is formed above the electrical-to-optical transceiver in the channel housing after the electrical-to-optical transceiver is positioned in the opening of the socket of the channel housing. A gap of the tapered opening decreases progressively starting from the opening of the socket. A conductive wedge positioned in the gap of the tapered opening.

Abstract: Embodiments of the present disclosure provide a method for creating a connection mechanism for a circuit board. The method includes securing a plurality of electrical conductors to a sleeve. Once the electrical conductors have been coupled to the sleeve, the sleeve and the plurality of conductors are coupled to, and molded with, the circuit board. At least one side of the circuit board, such as, for example, the molding over the plurality of electrical conductors, is subsequently reduced to expose at least a portion of at least one of the plurality of electrical conductors. An electrical connector is then coupled to the at least the portion of the one or more of the plurality of electrical conductors that was exposed when the first side of the printed circuit board was reduced.

Abstract: The present invention relates to a modular electrical connector, and the modular electrical connector can be divided into three modules including: housing, connecting modules, and RJ45 receiving modules, wherein the housing is used for disposed on a circuit board of an external host case, and the connecting modules and the RJ45 receiving modules are assembled and disposed in the housing so as to electrically connected with the circuit board; according to the modular design of the present invention, the RJ45 receiving modules are able to be individually disassembled from the connecting modules and the connector, thus, user does not have to disassembles whole connector during the RJ45 connector's repairing or replacing process.

Abstract: An electrical connector assembly (100) for electrically connecting an abutment connector (3) comprises an electrical connector (1) with a plurality of contacts (12) and a support device, the support device includes a support member (2) for positioning the abutment connector (3) being assembled in a horizontal direction and a press member (4) assembled to the support member (2), the support member (2) includes a bottom wall (22) and a top wall (21) opposite to each other, the bottom wall (22) includes a spring portion (221) supports the abutment connector (3) to make it disconnect with the contacts (12), when the press member (4) is inserted into the support member (2), the spring portion (221) moves downwardly to make the abutment connector (3) connect with the contacts (12).

Abstract: A connector cage includes a bezel, having a plurality of slots formed therein, and a cage structure including upper and lower sides and multiple partitions extending between the upper and lower sides to define receptacles for receiving cable connectors. Multiple tabs protrude out of at least one of the sides in locations at which the tabs fit into the slots in the bezel, and are folded over the slots so as to secure the cage structure to the bezel. The cage may also include multiple snap-on spring subassemblies, each spring subassembly secured to a front end of a respective partition and comprising leaves that bow outward to contact the shells of the connectors that are inserted into the receptacles adjacent to the partition.

Abstract: An integrated connector may be provided. The integrated connector may comprise a top portion, a front portion, and a side portion. The top portion may comprise a plurality of top fingers. The front portion may comprise a plurality of receptacles and a plurality of receptacle tabs respectively corresponding to the plurality of receptacles. The side portion may comprise at least one side finger comprising a main portion, a connector portion connected to the side portion, a tail portion, a top curved portion, and a bottom curved portion. The top fingers, the plurality of receptacle tabs, and the at least one side finger may be in electrical connection.

Abstract: A module for use with a monitoring system is provided. The module includes a circuit board that includes a plurality of ground planes. At least two of the plurality of ground planes are coupled using a plurality of vias. The module further includes a copper pour coupled to the circuit board adjacent to the plurality of vias. The module further includes a housing that includes a dam wall that is coupled to the copper pour.

Abstract: An electrical connector assembly includes a cage having an upper wall, a lower wall, and side walls that extend from the upper wall to the lower wall. The side walls have exterior sides. The cage includes an interior cavity and a divider that extends between the side walls and divides the interior cavity into at least two internal compartments. The cage includes a front end that is open to the internal compartments. The side walls have front edges at the front end. The internal compartments are configured to receive pluggable modules therein through the front end. An electromagnetic interference (EMI) cover is mounted to the divider such that the EMI cover is engaged with and electrically connected to the divider. The EMI cover includes a flap that wraps around the front edge of a corresponding side wall. The flap overlaps and engages the exterior side of the corresponding side wall.

Abstract: A connector module includes a single port connector and a circuit board capable of assembling with a multi-ports connector. The single port connector includes a receiving room and a number of first fixing pins formed at opposite sides of the receiving room along a longitudinal direction of the receiving room. The first fixing pins at each side of the receiving are arranged in a same way. The multi-ports connector includes at least two of the receiving room and the first fixing pins formed at opposite sides of each receiving room. The circuit board defines a group of first fixing holes corresponding to the first fixing pins formed at each side of the receiving rooms of the multi-ports connector. The single port connector is mounted on the circuit board by selectively inserting the first fixing pins into every two adjacent groups of the first fixing holes.

Abstract: An electrical connector assembly is provided with a shielding cage member having an upper port and a lower port configured to receive pluggable modules therein. The cage member has side walls that extend along sides of the upper and lower ports. The cage member includes a separator member that extends between the side walls and between the upper and lower ports. The separator member has an upper plate and a lower plate with a channel therebetween. A light pipe organizer is positioned within the channel. An RF absorber is positioned within the channel in engagement with the light pipe organizer. The RF absorber reduces an amount of electromagnetic interference (EMI) emitted from the channel.

Abstract: A small form factor pluggable (“SFP”) transceiver for use in a communications network includes a transmitter adapted to be coupled to the network for supplying signals to the network, a receiver adapted to be coupled to the network for receiving signals from the network, and a programmable signal processing module coupled to the transmitter and the receiver and adapted to be programmed from a remote station coupled to the network. The module can be programmed to perform at least one service or management function on the network.

Abstract: An electromagnetic radiation shield for an electronic module. In one example embodiment, an EMR shield for an electronic transceiver module includes a conductive carrier sized and configured to surround a shell of an electronic transceiver module. The conductive carrier defines a plurality of extended elements located on at least one edge of the conductive carrier and an orientation element. Each extended element is configured to bias against the shell in order to create a physical and electrical contact between the conductive carrier and the shell. The orientation element is configured to engage a corresponding structure in the shell in order to correctly orient the conductive carrier with respect to the shell.

Abstract: A receptacle assembly is provided for a pluggable module. The receptacle assembly includes a cage having an internal compartment and a front end that is open to the internal compartment. The internal compartment is configured to receive the pluggable module therein through the front end. The cage includes an alignment spring extending into the internal compartment. An electrical connector is positioned within the internal compartment of the cage. The electrical connector is configured to mate with the pluggable module to electrically connect the electrical connector to the pluggable module. The alignment spring of the cage is configured to engage the pluggable module as the pluggable module is received within the internal compartment of the cage such that the alignment spring biases the pluggable module in an alignment direction as the pluggable module is received within the internal compartment.

Abstract: Systems and methods for balanced cooling of electrical systems, including electrical systems containing transceivers used in electrical and optical communication. An electrical system includes a cage, where the cage has a top, front and bottom. The cage contains a plurality of upper bays disposed in the front of the cage. Each of the plurality of upper bays is configured to receive a transceiver. The cage also contains a plurality of lower bays disposed in the front of the cage. Each of the lower bays is configured to receive a transceiver. Additionally, each of the plurality of upper bays is stacked on one of the plurality of lower bays. An upper heat sink extends from the outer surface of the top of the cage and a lower heat sink extends from the outer surface of the bottom of the cage.

Abstract: Systems and methods for direct cooling of transceivers, including transceivers used in electrical and optical communications systems. An electrical system includes a transceiver module with a housing that contains a plurality of apertures to allow air flow into and out of the transceiver module. The transceiver includes an internal heat sink located within the housing of the transceiver module, where the internal heat sink is thermally coupled to at least one internal component of the transceiver module. The electrical system also includes a cage for receiving and electrically connecting to the transceiver module.

Abstract: An electrical connector (100) adapted for being mounted on a mother board (900) includes a housing and a number of contact modules (21, 22) each having a wafer (210, 220) and a number of terminals insert molded with the wafer. The terminals include an upper terminal (211, 221) having an upper contact portion (2111, 2211), and a lower contact terminal (212, 222) having a lower contact portion (2121, 2221). The upper contact portion and the lower contact portion are separated from each other along a vertical direction to define a slot (214, 224) therebetween. The upper terminal and the lower contact terminal are secured in the wafer at two positions remote from each other along a mating direction perpendicular to the vertical direction, with the upper contact portion and the lower contact portion approaching close to each other along the mating direction.

Abstract: An SFP transceiver with two subassemblies each having an optical coupling member with a polygonal cross section is disclosed. The polygonal cross section has a flat surface facing the flat surface of the other subassembly. Between flat surfaces is put with a metal partition plate that comes in contact with a metal frame and a metal cover of the transceiver. Two sub-assemblies are electrically shielded by the partition plate, and the polygonal cross section of the subassembly makes the total width of the two assemblies added with the thickness of the partition plate minimum.

Abstract: A module retention and electromagnetic interference (EMI) cage has a substantially flat, rectangular metal frame with retaining clip portions and EMI-shielding contact fingers. The frame has surface-mount legs to facilitate surface mounting the cage to the circuit board. An array connector is mounted on the circuit board within a central region of the cage. An electronic module can be inserted or plugged into the cage in conjunction with connecting the module to the array connector. As the module is inserted into the cage, the module resiliently deflects the EMI-shielding contact fingers. At approximately the same time as the connector of the electronic module mates with the array connector, the retaining clip portion mates with a portion of the housing to retain the module in this position.

Abstract: A shielding cage (1) partially mounted to an opening (31) defined through a panel (3) for at least an electrical module. The shielding cage has a cage body (13) and a gasket (14) mounted around a front portion of the cage body. The cage body has a number of side walls (100) and a front opening (101) defined between the side walls for receiving the electrical module. The gasket (14) has a base (142) resisting against a side face of the panel, and a horizontal portion (141) extending from the base and into the opening of the panel for firmly abutting against the inner surface of the opening.

Abstract: In one example embodiment, an angular seam includes a first complementary structure defined in a first shell of an optoelectronic transceiver module, and a second complementary structure defined in a second shell of the optoelectronic transceiver module. The second complementary structure is configured to receive the first complementary structure so that an angular seam is defined that is substantially non-transmissive to electromagnetic radiation.

Abstract: In various exemplary embodiments, the present invention provides improved card guide and heatsink assemblies for pluggable electro-optic modules utilized in optical communications networks and the like. More specifically, the present invention provides a solderable surface-mounted card guide assembly and a staggered heatsink assembly. These assemblies are utilized with small-form factor pluggable electro-optic modules and the like, and the concepts presented herein can be extended to XFP, XENPAK, XPAK, and X2 electro-optic modules, for example. The solderable surface-mounted card guide assembly of the present invention finds particular applicability with small-form factor pluggable electro-optic modules not utilizing any type of module cage, while the staggered heatsink assembly of the present invention finds particular applicability with small-form factor pluggable electro-optic modules both not utilizing and utilizing any type of module cage.

Abstract: A pluggable optical transceiver with an enhance EMI tolerance is disclosed. The optical transceiver provides an electrically conductive receptacle, a ground member made of metal sheet, and a cover also made of metal sheet. The ground member is assembled so as to surround a periphery of the receptacle. The cover provides a first bridge in a front portion thereof, while, the ground member provides fingers and a second bridge connecting the fingers in the tip portion. Fully setting the optical transceiver in the cage, the finger comes in contact with the inside of the cage and the first bridge comes in securely contact with the second bridge so as to shield a gap between the transceiver and the cage.

Abstract: A gasketed collar for reducing EMI emission from a communication module is presented. The gasketed collar includes a conductive metal collar designed to fit at least partway around the communication module, and a gasket. The gasket is electrically conductive and compressible. The gasket fits at least partway around the communication module and overlaps the conductive metal collar. A communication module including such gasketed collar and a method of making such communication module are also presented.

Abstract: A housing structure for pluggable transceiver module includes a case being internally provided with a plurality of vertical partitioning plates, and having first protrusions provided on an upper and a lower side of a free edge at an open end of the case, and second protrusions provided on two opposite sides of a free end of each of the partitioning plates at the open end of the case; a plurality of first elastic-leaf members being clamped to the free edge of the case and having retaining holes engaged with the first protrusions; and a plurality of second elastic-leaf members being clamped to the free ends of the partitioning plates and having retaining holes engaged with the second protrusions. Therefore, the first and second elastic-leaf members are easily and securely assembled to the case and the partitioning plates via the first and second protrusions, respectively, without the need of spot welding.

Abstract: A receptacle cage (100) for receiving a small form-factor pluggable (SFP) transceiver therein includes a cage body (10) inserted into a passage (201) defined in a chassis (200), and a conductive plate (21) attached to outside of the cage body (10), said conductive plate (21) forming a plurality of resilient fingers (26) for grounding said cage body (10) to said chassis (200). The conductive plate (21) forming a front edge portion (282) closed to the cage body (10), a connection portion (284) extending slantways and rearwardly from the front edge portion (282), and the plurality of resilient fingers (26) being listed side by side in a first direction and extending from the connection portion (284), wherein said connection portion (284) extends continuously in a direction perpendicular to the first direction and parallel to corresponding wall of the cage body (10).

Abstract: In various exemplary embodiments, the present invention provides improved card guide and heatsink assemblies for pluggable electro-optic modules utilized in optical communications networks and the like. More specifically, the present invention provides a solderable surface-mounted card guide assembly and a staggered heatsink assembly. These assemblies are utilized with small-form factor pluggable electro-optic modules and the like, and the concepts presented herein can be extended to XFP, XENPAK, XPAK, and X2 electro-optic modules, for example. The solderable surface-mounted card guide assembly of the present invention finds particular applicability with small-form factor pluggable electro-optic modules not utilizing any type of module cage, while the staggered heatsink assembly of the present invention finds particular applicability with small-form factor pluggable electro-optic modules both not utilizing and utilizing any type of module cage.

Abstract: An electrical connector having an electrical interface assembly electrical processing circuitry, and an EMI barrier. The electrical interface assembly has a plurality of electrical contacts for interfacing with a receptacle when the electrical connector is connected to a corresponding receptacle. The electrical processing circuitry is for processing electrical signals received from at least some of the plurality of electrical contacts and/or to be sent to the plurality of electrical contacts. The EMI barrier substantially contains the electrical processing circuitry except at a number of EMI barrier openings. The largest of these EMI barrier openings is where the electrical contacts pass through the connector.

Abstract: An electrical connector receptacle that includes receptacle-side electrical contacts, a socket, and a receptacle shield. The socket is configured such that a connector may be inserted therein allowing the electrical contacts of the connector to interface with the receptacle-side electrical contacts. The receptacle shield is placed in the back of the receptacle, and is composed of an Electro-Magnetic Interference barrier material. In one embodiment, the receptacle shield is configured to interface with an EMI barrier of the connector, and includes separate slots through which electrical connections may pass.

Abstract: An EMI collar is provided that is configured to be secured about a housing of a pluggable optical transceiver module. The configuration of the EMI collar and the method by which the collar is attached to the housing of the transceiver module ensures that the collar will not be damaged when the transceiver module housing is inserted into a cage. Ensuring that the collar will not be damaged during insertion ensures that electrically conductive contact points on the collar will not be eliminated by insertion of the housing into a cage. In addition, dimples, or indentations, formed on the spring fingers of the EMI collar result in additional electrically conductive contact points on the fingers that result in a reduction in the size of the maximum EMI aperture dimension of the collar. Reducing the maximum EMI aperture dimension of the collar greatly improves the ability of the collar to attenuate EMI signals, even EMI signals having high frequencies.

Abstract: A new arrangement of the cage for the pluggable optical transceiver is disclosed. The cage provides a plurality of fingers which has a corrugated shape with first and second contact portion. The first contact portion comes in contact with the front panel of the host system when the cage is implemented therein, while, the second contact portion comes in contact with the housing of the transceiver when it is set within the cage.