Abstract: System for connecting and/or disconnecting the power supply and/or data connection for refrigerated containers in the port, storage and interchange field and/or on board ship, which container is provided with at least one electrical connector for connection to a power supply and/or data transmission network. The system comprises automated means for the electrical connection and disconnection of the said electrical connector to/from the said power supply and/or data transmission network, which means comprise at least one mechanical arm.

Abstract: In some examples, a system including a first blanking panel and a second blanking panel configured to be affixed to a cabinet. The first blanking panel includes a first spring-loaded hinge and a first connecting mechanism. The second blanking panel includes a second spring-loaded hinge and a second connecting mechanism. Each of the first and second spring-loaded hinges are configured to rotate between a non-deployed position and a deployed position. Each of the first and second connecting mechanisms are configured to connect the first blanking panel with the second blanking panel in a closed position when the spring-loaded hinges are in the non-deployed position. The first blanking panel and the second blanking panel are configured to be out of contact with each other and into respective open positions when the spring-loaded hinges are in the deployed position.

Abstract: An electrical input connector unit for charging an electric vehicle or a hybrid vehicle comprises a connector body adapted to be mounted on a vehicle and having a central portion housing a plurality of electrical input contacts. The electrical input contacts are adapted to receive a plurality of corresponding contacts of a connector attached to a charging cable. The connector body has a socket opening out to a front side of the connector body and disposed adjacent to the central portion. The socket is configured to removably receive a human-machine interface module to control and/or provide information about a charging operation of the vehicle.

Abstract: A connector comprises a first housing having a connection end to be inserted into an opening of a second connector, the first housing containing a first electrical contact, wherein the connection end comprises a first opening. The connector further comprises a first cover biased towards a closed position in which the first electrical contact is inaccessible via the first opening, wherein the first cover is moved from the closed position to an open position exposing the first electrical contact during insertion of the connection end into the opening of the second connector.

Abstract: There is provided a highly convenient package for an optical module in which a device can be mounted as it is even when the number and mounting position thereof are different according to the device to be mounted. The package includes a base plate having a top surface on which devices are assembled, an optical fiber mounting component mounted on the top surface of the base plate, a direct current electrical interface component and a high frequency electrical interface component mounted on the top surface of the base plate. The optical fiber mounting component and the electrical interface components are separately manufactured, separately assembled on the top surface of the base plate, and fixed in different modes. The optical fiber mounting component is fixed by fastening with screws and fixed by soldering, and the electrical interface components are fixed by fastening with the screw.

Abstract: A port protection device includes a blocking element movement subsystem that may be coupled to a port that defines a port entrance, and a port entrance blocking element connected to the blocking element movement subsystem and defining airflow aperture(s). When the blocking element movement subsystem is coupled to the port, the blocking element movement subsystem allows the port entrance blocking element to be positioned in a port protection orientation immediately adjacent the port entrance such that airflow is restricted to entering the port via the airflow aperture(s). When the blocking element movement subsystem is coupled to the port, the blocking element movement subsystem also allows the port entrance blocking element to move from the port protection orientation to a cable connector orientation in response to engagement with a cable connector so that the cable connector may move through the port entrance to connect to the port.

Abstract: A connector includes a housing configured to accommodate a connection terminal, a shutter that is rotatably provided in the housing and is configured to open and close a front opening of the housing, a rotation lever that is rotatably supported to the housing about a rotation axis, and an interlocking rotation mechanism provided between the rotation lever and the shutter and configured to rotate the shutter in accordance with rotation of the rotation lever. A pressing force of the mating connector, whose fitting tip end portion is moved to a position facing the front opening, acts on a lever front end portion of the rotation lever so as to rotate the rotation lever, and thus the shutter is rotated by the interlocking rotation mechanism so as to open the front opening.

Abstract: A connector includes a housing configured to accommodate a connection terminal, a shutter that is rotatably provided in the housing and is configured to open and close a front opening of the housing, a rotation arm that is rotatably supported to the housing about a rotation axis and has an arm portion and a connection engagement portion, and a connection member that is provided so as to be rotatable together with the shutter and includes a first lever portion that is pressed and rotated by a tip end of the connection engagement portion. A pressing force of the mating connector acts on the arm portion so as to rotate the rotation arm, and thus the shutter is rotated together with the connection member rotated by the connection engagement portion so as to open the front opening.

Abstract: Provided is an adapter. The adapter includes a housing and an elastic component. The elastic component is configured to connect the housing with an installation frame. The elastic component includes an installation body, a blocking portion and a clamping elastic piece, the blocking portion and the clamping elastic piece are disposed on the installation body. The installation body is configured to be detachably connected to the housing. A first clamping gap capable of accommodating the installation frame is provided between the blocking portion and the clamping elastic piece.

Abstract: An extendable electrical outlet enclosure with a tubular main body, a bezel, a cap, at least one extension tube, and a back plate. The tubular main body has a first end, a second end, and a wall extending between the first end and second end. The tubular main body also has an electrical device support that extends inward from the wall and defines a separation between an electrical plug section and a wiring section. The bezel surrounds an opening in the main body at the first end and allows the cap to removably mount to the electrical enclosure. The at least one extension tube attaches to the tubular main body at the second end and has a leading end, a trailing end, and an outer wall extending between the leading end and the trailing end. The back plate couples with the at least one extension tube at the trailing end.

Abstract: An arrangement for the sterile handling of a non-sterile endoscope in a sterile environment comprises a sterile endoscope sheath for accommodating the endoscope and a cable via which the endoscope is connectable to a control unit, the arrangement further comprising a sterile cable sheath for accommodating at least a portion of the cable, wherein the endoscope sheath comprises a first sterile lock comprising at least one first sterile flap which in the closed state shields the endoscope arranged in the endoscope sheath in a sterile manner. The cable sheath comprises a second sterile lock having a second sterile flap which in a closed state shields the cable arranged in the cable sheath and/or a plug connector present on the arranged cable in a sterile manner.

Abstract: An electronic device and an input/output connector are disclosed. The device may include the input/output connector, which may include a housing including an opening, a cover that covers at least a portion of the opening, the cover connected to the housing by a hinge, and forming an external appearance of the electronic device together with the housing, an elastic body connected to the housing and the cover, and an insertion hole formed by the housing and the cover, into which a cable terminal is insertable for connection with an external device, wherein a size of the insertion hole is changeable according to the rotation of the cover.

Abstract: A new fiber optic connector provides a smaller form factor by including two ferrule assemblies in a housing. The housing accepts a push-pull mechanism that allows for insertion and removal from a carrier as well as an adapter. The push-pull mechanism may also include a flexure member to return the push-pull mechanism. Polarity of the fiber optic connector may also be selected by use of the push-pull mechanism.

Abstract: A system for charging commercial electric vehicles, including buses and trucks. The system can include a charging station that outputs a supply of relatively high voltage electrical power, and a cable suspension post having a support post and a suspension arm. The suspension arm can be suspended away from the support post at a vertical height that is higher than the height of typical commercial vehicles. At least a portion of a charging cable is electrically coupled to the charging station and suspended from the suspension arm. A charging connector can be free-hanging from the suspended portion of the charging cable, and therefore be swingingly displaceable into electrical engagement with a mating connector of the vehicle. The suspension arm can be rotatably displaced relative to the support post and/or another portion of the suspension arm such that a vertical height and/or other position of the suspended arm can be adjusted.

Abstract: It is aimed to provide a connector capable of improving the reliability of connection detection. A connector is provided with a first housing and a second housing connectable to each other, a detector arranged movably to a standby position and a detection position with respect to the first housing, the detector being allowed to move to the detection position when the first and second housings are connected properly, and a biasing member accommodated in either one of the first and second housings. The biasing member accumulates a biasing force by being pressed by the detector moving toward the detection position.

Abstract: An electronic device and an input/output connector are disclosed. The device may include the input/output connector, which may include a housing including an opening, a cover that covers at least a portion of the opening, the cover connected to the housing by a hinge, and forming an external appearance of the electronic device together with the housing, an elastic body connected to the housing and the cover, and an insertion hole formed by the housing and the cover, into which a cable terminal is insertable for connection with an external device, wherein a size of the insertion hole is changeable according to the rotation of the cover.

Abstract: A system for charging a battery carried by a vehicle may include a charging box for coupling to a vehicle chassis and including interface electrical contacts electrically coupled to the battery. The system may also include a charge coupler including coupler electrical contacts for electrically coupling to the interface electrical contacts from under the vehicle and configured to be coupled to an electrical power supply. The charging box may include an interface activation surface, and the charge coupler may include a housing for enclosing the coupler electrical contacts and including a base for supporting the coupler electrical contacts, a coupler activation surface opposite the base, an opening, and a door configured to open the opening to expose the coupler electrical contacts as the interface activation surface contacts the coupler activation surface and moves the coupler activation surface toward the base.

Abstract: Four different combinations of a sliding internal shutter and shutter lock control mechanism are described along with methods of incorporating the combinations into receptacles to prevent foreign objects from gaining access to power. Each combination is composed of a ramped shutter, spring biased in a closed position, and two to four lock control mechanisms, each of which moves a locking bar out of contact with an impeding surface on the shutter. The entrance of a standard plug into the assembled receptacle moves all the locking bars away from the shutter's impeding surfaces and the blades interaction with the ramps moves the shutter to the open position allowing the blades to continue to power. The combinations may be installed in receptacles as standalone modules that are installed in a receptacle case or the parts may be integrated directly into a receptacle structure with the proper support structure.

Abstract: An extendable electrical outlet enclosure with a tubular main body, a bezel, a cap, at least one extension tube, and a back plate. The tubular main body has a first end, a second end, and a wall extending between the first end and second end. The tubular main body also has an electrical device support that extends inward from the wall and defines a separation between an electrical plug section and a wiring section. The bezel surrounds an opening in the main body at the first end and allows the cap to removably mount to the electrical enclosure. The at least one extension tube attaches to the tubular main body at the second end and has a leading end, a trailing end, and an outer wall extending between the leading end and the trailing end. The back plate couples with the at least one extension tube at the trailing end.

Abstract: The disclosed apparatus may include (1) a cage designed to house an optical transceiver module, wherein the cage includes (A) an entry side that forms an opening for installation and removal of the optical transceiver module and (B) a back side opposite the entry side and (2) an EMI absorber coupled to the back side of the cage to limit an amount of radiated energy that escapes the cage during operation of the optical transceiver module. Various other apparatuses, systems, and methods are also disclosed.

Abstract: A charging plug for an electric automobile has a plug head and an insulation body. The plug head and the insulation body are connected in a releasable manner in such a way that the insulation body can be exchanged.

Abstract: An electrical receptacle including a body having a plurality of electrical connections, a device face connected to the body and movable with respect to the body, a plurality of electrical plug contacts positioned behind the device face, and wherein the electrical plug contacts retain an electrical plug prong at a first tension when the device face is in a first position and the electrical plug contacts retain the electrical plug prong at a second tension when the device face is in a second position.

Abstract: A sliding power contact and method includes a mobile load device connector and a socket. The mobile load device connector includes a non-current power pin having a first length, a current power pin having a second length less than the first length, a neutral pin, and a ground pin. The socket includes a non-current power contact configured to electrically couple with the non-current power pin, a current power contact configured to electrically couple with the current power pin, a neutral contact configured to electrically couple with the neutral pin, and a ground pin configured to electrically couple with the ground pin. An arc suppressor is directly coupled to at least one of the non-current power pin and the non-current power contact, wherein the arc suppressor, the non-current power pin and the non-current power contact form a current path between the current power pin and the current power contact.

Abstract: A connecting system for charging an electric vehicle may include a connector comprising a male connector connected to a battery side for supplying electric energy to a vehicle and a female connector connected to the male connector; an interlock circuit for constituting a closed circuit by connecting an interlock terminal of the male connector and an interlock terminal of the female connector to each other; a control unit having a built-in battery, and for measuring the voltages at both ends of the interlock circuit; a light-emitting load provided on the interlock circuit inside the male connector; and a ground switch provided on the interlock circuit inside the male connector.

Abstract: A card edge connector is adapted to allow an electronic module to insert and comprises an elongated insulating housing and a plurality of conductive terminals. The insulating housing has two side walls which are spaced apart from each other, the two side walls together define a card edge insertion groove which has an opening, at least one of the two side walls is a terminal mounting wall. The plurality of conductive terminals are provided to the terminal mounting wall and partially extend into the card edge insertion groove.

Abstract: In one embodiment, a method includes identifying optical transceivers installed in optical module ports at a network device based on input received at electrical interfaces at the network device, identifying at least one optical module port without an optical transceiver installed, determining if a plug is inserted into the optical module port, wherein an electrical signal indicates insertion of the plug into the optical module port, and raising an alarm if the optical module port is open. Insertion of the plug into the optical module port reduces airflow bypass, electromagnetic interference leakage, and contamination without the optical transceiver installed in the optical module port. The plug is also disclosed herein.

Abstract: A connection assembly includes an adapter to be mounted to a rear part of a subsea sensor, a sensor port being located in the adapter, through which at least a first and a second sensor connection are led to the subsea sensor; a first port for providing a connection to a first of the subsea cables; and a second port for providing a connection to a second of the subsea cables. A first penetrator is arranged in the first port to provide a liquid tight seal between an interior space of the adapter and a duct connected to the first port leading the first sensor connection through the first port, and a second penetrator is arranged in the second port providing a liquid tight seal between the interior space of the adapter and a duct connected to the second port and leading the second sensor connection through the second port.

Abstract: The present disclosure relates to an electrical power transmission and outlet system. The electrical power transmission and outlet system may include an electrical power transmission and outlet device and an external power storage unit. The electrical power transmission and outlet device may include a housing having an opening for receiving an external plug, a connector in the housing for connecting with the external power storage unit; and a plurality of electrical conductors in the housing connected to the connector. When the external plug is inserted into the opening, the conductors are electrically connected to the external plug and disconnected from the connector, and when the external plug is pulled out of the opening, the conductors are electrically disconnected from the external plug and reconnected to the connector.

Abstract: A connector system that includes first and second connector components. The first connector component includes a female connector. The second connector component includes a male connector having blades for insertion into the female connector; an enclosure enclosing the male connector and having an open end wherein the blades of the male connector face the open end; a locked shield within the open end of the enclosure to obscure the blades and to prevent contact with the blades; and an actuator to unlock the locked shield. Upon insertion of the first connector component into the enclosure, the first connector component causes the actuator to unlock the locked shield and upon further insertion of the first connector component into the enclosure, the first connector component opens the unlocked shield away from the male connector to expose the blades and to allow the female connector to engage the blades of the male connector.

Abstract: A photonic integrated circuit (PIC) fan-out package and related methods of forming same are disclosed. The PIC fan-out package includes: an overmold body; a PIC die in the overmold body, the PIC die including electro-optic circuitry; a plurality of optical fiber stubs operatively coupled to the electro-optic circuitry; an edge fiber coupling interface in a lateral side of the overmold body for coupling the plurality of optical fiber stubs to external optical fibers using a connector; an ancillary device in the overmold body; a redistribution wiring layer (RDL) interposer adjacent the overmold body and electrically connected to the PIC die and the ancillary device; and a ball grid array (BGA) electrically coupled to the PIC die and the ancillary device by the RDL interposer, the BGA configured to electrically couple the PIC die and the ancillary device to a printed circuit board (PCB).

Abstract: An electrical connector assembly includes: a metal shell including a top wall, a bottom wall, a pair of parallel spaced side walls connecting the top and bottom walls, a receiving space, and a front opening communicating with the receiving space; a connector received in the receiving space of the metal shell; and a heat sink disposed in the rear side of the metal shell, wherein the metal shell includes a rear opening communicating with the receiving space, and the heat sink covers the rear opening.

Abstract: A compact interlocked electrical socket, including a containment body provided with a plurality of receptacles adapted to receive respective pins of a plug is provided. Each receptacle is electrically connected to a connector by contacts that are movable between a closed contact position, which corresponds to the closure of the circuit, and an open contact position, which corresponds to the opening of the circuit. The closed contact position allows an electrical connection between the receptacle and the connector. The open contact position breaks the electrical connection between the receptacle and the connector. The plug can be mechanically locked in the closed contact position. The breaker locks can be mechanically locked in the open contact position when the plug is not inserted in the socket.

Abstract: A locking electrical outlet assembly includes at least one electrical plug that has a pair of blades and an outlet housing is provided that is positioned in a wall. A pair of sockets is each rotatably positioned in the outlet housing. Each of the sockets is rotatable between a first position and a second position, and each of the sockets is biased to rotate into the second position. A pair of locking units is each movably coupled to a respective one of the sockets for releasably retaining the sockets in the first position. Each of the locking units in the respective socket disengages the outlet housing when the electrical plug is plugged into the respective socket. A plurality of contacts is coupled to the outlet housing and each of the terminals on the sockets engages respective ones of the contacts when the sockets are rotated into a second position.

Abstract: Tamper resistant cartridges for electrical devices are provided. The tamper resistant cartridges include a housing and one or more tamper resistant assemblies configured to normally block access to electrical contacts with the electrical device, and to permit access to such electrical contacts when the line phase prongs of a plug are inserted into the electrical device.

Abstract: One example of a system includes a system board including first contacts and second contacts and a cage attached to the system board. The cage includes a first side over the first contacts and a second side over the second contacts. A first lever is coupled to the first side of the cage and pivotable with respect to the cage. A second lever is coupled to the second side of the cage and pivotable with respect to the cage. A removable transceiver module includes third contacts. The transceiver module is installable in at least one of the first side and the second side of the cage using at least one of the first lever and the second lever.

Abstract: The disclosure relates to a 360°, continuously rotatble (swiveling) electric plug adaptor or socket. Specifically, the disclosure relates to a rotatble plug or socket comprising a toroidal component configured to maintain continuous, 360° conductive contact between a plugged male connector and a power source.

Abstract: Power connectors with integrated fuse support, and associated systems and methods are disclosed. A representative power connector can include a power port and a mating plug. The power port can include a fuse support having first and second fuse receptacles, wherein the first fuse receptacle is connectable to a first supply cable. The power port can include first and second port terminals, wherein the first port terminal is connectable to a second supply cable. A jumper cable can be connected between the second port terminal and the second fuse receptacle. The plug can include a housing configured to enclose the fuse support between the plug and the power port when the plug is mated to the power port. The plug can include first and second plug terminals mateable with the first and second port terminals.

Abstract: A method of assembling a transformer/reactor is disclosed comprising the steps of: receiving a first coil having a first coil end conductor; receiving a second coil having a second coil end conductor; mounting the first coil and second coil on respective limbs of a magnetic core; arranging the first coil such that the first conductor projects outwardly from the first coil from a point between the first and second coils; arranging the second coil such that the second conductor projects outwardly from the second coil from a point between the first and second coils; and connecting the conductors to form an interconnection between the coils.

Abstract: A connector includes a first housing housing a plurality of first terminals, a second housing being fittable to the first housing and housing a plurality of second terminals connectable to the respective first terminals, a short-circuiting terminal housed in the first housing and having contact pieces contacting the respective first terminals which are adjacent to each other, and a release portion provided on the second housing and displacing the contact pieces to release contact between the first terminals and the contact pieces. The second housing is deflectably provided with a lock arm on an outer peripheral surface of the second housing, the lock arm holding a state in which the first housing and the second housing are fit together. The release portion is arranged on the outer peripheral surface of the second housing forward of the lock arm in a fitting direction of the first housing and the second housing.

Abstract: Reduced-profile connection components are described. The reduced-profile connection components are configured to connect various data transmission elements, including cables, network devices, and computing devices. A non-limiting example of a connection component includes a fiber optic connection component, including connectors, adapters, and assemblies formed therefrom. In some embodiments, the connection components may include mechanical transfer (MT) and multi-fiber push-on/pull-off (MPO) connection components, such as MT ferrules and MPO adapters. The reduced-profile connection components configured according to some embodiments have a smaller profile and/or require less parts to achieve a connection compared to conventional connection components. In some embodiments, the reduced-profile connection components may be used with conventional connection components. For example a reduced-profile connector may use a conventional MT ferrule to establish a connection within a conventional MPO adapter.

Abstract: Medical devices provide metallic connector enclosures. The metallic connector enclosures may be constructed with relatively thin walls in comparison to polymer connector enclosures to aid in miniaturizing the medical device. The metallic connector enclosures may be constructed with interior surfaces that deviate less from an ideal inner surface shape in comparison to polymer connector enclosures to allow for better concentricity of electrical connectors. The metallic connector enclosures may include a panel that allows access to the cavity of the connector enclosure where set screw blocks, lead connectors, spacers, seals, and the like may be located. Furthermore, the lead connectors within the metallic connector enclosures may be separated from the metallic connector enclosure by being positioned within non-conductive seals that reside within features included in cavity walls of the connector enclosure.

Abstract: Contact structures that are readily manufactured, where contacts in the contact structures provide a sufficient normal force while consuming a minimal amount of surface area, depth, and volume in an electronic device.

Abstract: Embodiments of the present invention relate to a socket, comprising: a seat body including two insertion holes allowing two pins of a plug to insert respectively; wherein, an individual protective door movable member is disposed for each of the insertion holes in the seat body, the protective door movable member is configured in a way that when no pin of a plug is inserted into the insertion holes, the protective door movable members close corresponding insertion holes, and when the pins of the plug are inserted into the insertion holes, the protective door movable members are driven to move along a defined trajectory to open the corresponding insertion holes to allow the pins of the plug to extend into the insertion holes, and wherein movement of the protective door movable members along the defined trajectory makes the movement trajectory of at least a portion of the protective door movable members different from the movement trajectory of another portion of the protective door movable members.

Abstract: A rotary tray holder includes a tray holder comprising a side A and a side B, each side comprising at least one window to hold a SIM card; and a handle grabber that allows rotation of the tray holder to enable insertion of the tray holder in an electronic device with any of the side A and the side B of the tray holder, thereby enabling the SIM card located on the side oriented in the desired direction to be active, and making the SIM card located on the other side to take a standby position. The tray holder may include two partly overlapping windows oriented at an angle to each other. One of the overlapping windows holds the SIM card with contacts providing a standby position for the SIM card that may be repositioned in the other of the two overlapping windows to make the SIM card active.

Abstract: The present invention is directed to an assembly that includes a shutter having an interface portion coupled to a railed guidance structure so that the shutter rides the railed guidance structure from a return position to an open position in response to being engaged by the plurality of plug blades; the interface portion and the railed guidance structure allowing the shutter to rotationally align with the ends of the plug blades in response to an asymmetry in respective lengths of the plug blades. The open position permits electrical engagement of the plurality of plug blades with the plurality of receptacle contacts. The shutter is also directed from the return position to a blocking position in response to being engaged by a foreign object via one of the plurality of receptacle openings to prevent the foreign object from engaging the set of receptacle contacts.

Abstract: An electrical receptacle including a body having a plurality of electrical connections, a device face connected to the body, and wherein the device face is movable with respect to the body from an electrically inactive position to an electrically active position. The electrical receptacle may further include at least one pair of electrical contacts which are in electrical continuity when the electrical receptacle is in an electrically active position.

Abstract: Medical devices provide metallic connector enclosures. The metallic connector enclosures may be constructed with relatively thin walls in comparison to polymer connector enclosures to aid in miniaturizing the medical device. The metallic connector enclosures may be constructed with interior surfaces that deviate less from an ideal inner surface shape in comparison to polymer connector enclosures to allow for better concentricity of electrical connectors. The metallic connector enclosures may include a panel that allows access to the cavity of the connector enclosure where set screw blocks, lead connectors, spacers, seals, and the like may be located. Furthermore, the lead connectors within the metallic connector enclosures may be separated from the metallic connector enclosure by being positioned within non-conductive seals that reside within features included in cavity walls of the connector enclosure.

Abstract: A charging connector connecting device includes a cover that is movable between a closed position at which a connecting portion is closed and an open position at which the connecting portion is opened so that a second charging connector can be connected to the connecting portion; an elastic member that applies a biasing force to the cover so that the cover is positioned at an initial position between the closed position and the open position; and a pressing member configured to move with insertion of a first charging connector into the connecting portion so as to press the cover positioned at the initial position to thereby move the cover to the closed position.

Abstract: A tamper resistant electrical receptacle for use with 20 A receptacles. A pair of pivoting shutter and trap doors biased in the same direction use a cam and cam follower that moves laterally a distance sufficient to allow passage of the perpendicular portion of a neutral blade of a 20 A electrical plug when simultaneous insertion of electrical plug tines overcome the spring bias of the springs to allow the tines to access the devices hot and neutral electrical contacts. Absent simultaneous insertion, the shutter and trap doors cannot operate in tandem to provide the tines passage to the electrical contacts.

Abstract: A method and system are provided for controlling a lock state of a charging cable connected to a power inlet of an electrical vehicle. The vehicle includes an energy storage device electrically connected to the power inlet, a lock unit for locking the charging cable to the power inlet, and a control unit for controlling a lock state of the lock unit.