Abstract: Systems, Methods, and Apparatuses are provided for monitoring cable connections between a trailer and vehicle. The system includes a monitoring device disposed within the vehicle; and a trailer cable and a breakaway trailer cable that provide a set of cable connections, the monitoring device is configured to: monitor the set of cable connections from connection data generated by a set of multimodal sensors integrated with the vehicle about statuses of the cable connections between the trailer and the vehicle; initiate a monitor function upon detection of a presence of the trailer connected to the vehicle by at least one sensor of the set of multimodal sensors integrated with the vehicle; and determine the statuses of the cable connections by fusing together using an information fusion algorithm one or more types of signal data from the set of multimodal sensors comprising optical signal data, radio signal data, and range signal data.

Abstract: A cable-winding charger includes a housing, a main circuit board, a plug, a pivot base, a torsion spring, and a data cable. The main circuit board is in the housing and includes conductive rings. The conductive rings are coaxially arranged around the column of the housing. The plug is pivotally connected to the housing and electrically connected to the main circuit board. The pivot base is pivotally connected to the housing. Each conductive piece of the pivot base contacts the corresponding conductive ring. One end of the torsion spring is fixed to the column, and the other end of the torsion spring is fixed to the pivot base. One end of the cable body of the data cable is electrically connected to the conductive pieces, and the other end of the cable body is electrically connected to the connection port.

Abstract: The present disclosure relates to a work lamp arrangement (100) for a vehicle (1), comprising: —a portable work lamp (10) comprising means for emitting light, —at least a first default holder (20) and one or more second holders (30) for the portable work lamp which are adapted to be mounted onto the vehicle at different positions thereof, wherein the portable work lamp comprises a main body (11) and a connection member (12) for selectively and releasably mounting the portable work lamp to the at least first default holder and to the one or more second holders, wherein the connection member is a stem-formed member having a longitudinal extension along a center axis (C) thereof, wherein the stem-formed member protrudes from the main body, and at least one of the one or more second holders comprises a female receiving section (31) for receiving the stem-formed member.

Abstract: A hose line management system for a tractor-trailer includes a vertical tube rotatably mounted on the truck frame, between the cab and trailer, and a horizontal tube pivotally attached to the upper end of the vertical tube. The truck's electrical cables and air hoses are passed through the tubes and connected to the trailer. The tubes can move in both a vertical and horizontal plane according to vehicle movement to prevent the hoses from breaking or disconnecting. The tubes are biased to return to an original position when no longer stressed by vehicle movement or orientation.

Abstract: A method and apparatus for a lighting assembly for a vehicle can include a housing assembly and a set of adaptors. Vehicles today are often limited to specific wiring harnesses or connection types based upon manufacturer. Each adaptor of the set of adaptors can include a different connection type. The adaptors are interchangeably connectable to the housing assembly in order to vary the connection type based upon the specific wiring harness or connection type of the particular vehicle.

Abstract: An electrified vehicle assembly includes, among other things, a grounding block secured to a frame member of an electrified vehicle. The grounding block includes a bore configured to receive a fastener to hold a grounding strap connector relative to the grounding block.

Abstract: A connection structure of an electrical junction box includes: a first housing which is fixed to a vehicle and in which a through hole is formed; and a terminal block that is inserted into the through hole, has a conductor, and is supported by the first housing, wherein the conductor includes a first terminal portion placed on one side of the through hole in a penetrating direction in which the through hole penetrates the first housing, and a second terminal portion that protrudes from the first housing toward the other side in the penetrating direction and that is connected to an electric wire.

Abstract: An adapter for use with components of a truck trailer. The adapter may include multiple input terminals corresponding with multiple terminals of a trailer component socket of a trailer, and multiple output terminals configured to electrically connect with corresponding input terminals of a trailer component. The adapter may also include an adapter circuit configured to electrically connect at least four of the input terminals with at least four of the multiple output terminals. The multiple output terminals may include at least two mode selection output terminals configured to provide a mode selection to the trailer component, and the trailer component optionally includes control logic configured to activate and deactivate the trailer component according to the mode selection.

Abstract: A wireless streaming receiver or other signal input source is coupled to an HDMI slot on a television through a combination cord which includes male and female HDMI connectors at opposite ends of a hybrid cable segment. An HDMI conductor bundle extends along this hybrid cable segment between these HDMI connectors, to couple the wireless streaming receiver to the HDMI slot on the television. The combination cord also includes first and second USB cable segments extending from near each of the HDMI connectors. These USB cable segments extend to either a USB slot on the television to receive power therein or to a USB connector for attachment to a power port of the wireless streaming receiver. The USB conductor bundle extends along the USB cable segments and the hybrid cable segment to provide power from the USB slot on the television to the power port on the wireless streaming receiver.

Abstract: Disclosed is a manual service disconnection device for a battery system, comprising: a service plug unit; a disconnection header unit which is attachably and detachably coupled to the service plug unit and is mounted in the battery system; and a flexible bus line having one end coupled to one surface of an insertion part of the disconnection header unit, which is inserted inside the battery system, and the other end coupled to a bus line coupling terminal inside the battery system so as to electrically connect the manual service disconnection device with the battery system, and having flexibility to be bendable.

Abstract: A production method of an input/output device is provided, including a cable connecting step of connecting a cable to be connected to a field device disposed outside a casing main body to a terminal block in a state where the terminal block is housed in the casing main body having an opening portion, an electronic device attaching step of attaching an electronic device to the casing main body by housing the electronic device having a connector portion, which the terminal block can be attached to and detached from, in the casing main body through the opening portion, a terminal block attaching step of attaching the terminal block to the connector portion, and a closing step of closing the opening portion of the casing main body by an opening/closing member.

Abstract: A method is provided for the power requirement-dependent operation of a generator unit mounted on an agricultural work vehicle. A power output of the generator unit is varied as a function of a determined power requirement of an electrical consumer, which is fed with the power of the generator unit of an attachment which is connected to the agricultural work vehicle.

Abstract: Disclosures of the present invention mainly describe an electrical connector set mainly consisting of a space-end electrical connector disposed in a battery accommodating space and a battery-end electrical connector connected to a replaceable battery. The space-end electrical connector is integrated with a first outer circular cylinder member and a first inner circular cylinder member therein. In contrast to the space-end electrical connector, the battery-end electrical connector is also provided with a second outer circular cylinder member and a second inner circular cylinder member therein. By such arrangement, after connecting the battery-end electrical connector with the space-end electrical connector, the outer wall of the first outer circular cylinder member contacts with a circular negative electrode of the second outer circular cylinder member and the outer wall of the first inner circular cylinder member contacts with the circular positive electrode of the second inner circular cylinder member.

Abstract: A power plug adapter with a magnetically attachable module is provided. A signal transmission device is connected with the power plug adapter and the magnetically attachable module. At least one magnetic unit is arranged on the power plug adapter, and at least one counterpart magnetic unit is arranged on the magnetically attachable module. When the magnetically attachable module and the power plug adapter are arranged to have attachment surfaces thereof adjacent to and facing each other, the counterpart magnetic unit of the magnetically attachable module magnetically attracts the attachment surface of the power plug adapter to have the magnetically attachable module and the power plug adapter attached to each other magnetically.

Abstract: A trailer yaw sensing apparatus is provided. The trailer yaw sensing apparatus includes a housing, a yaw sensor, and a docking station. The housing is configured for installation on a trailer. The housing defines apertures that are configured to engage fasteners for mounting yaw sensors in a plurality of orientations. The yaw sensor includes an external casing and is disposed within the housing. The docking station is affixed to the housing and is configured to receive a trailer-to-vehicle electrical connector.

Abstract: An electrical socket is described, which is configured to be mounted on a towing vehicle. The electrical socket comprises a socket body, a plug receiver mounted in the socket body and configured to receive a vehicle electrical plug from a towed vehicle, an illuminated closure mounted on the socket body and movable between a closed position in which the plug receiver is closed and an open position in which the plug receiver is accessible to receive the vehicle electrical plug, the illuminated closure comprising a lens and a light source mounted adjacent the lens and configured to direct light through the lens toward the towed vehicle when it is connected to the towing vehicle wherein the light source is also configured to illuminate the plug receiver when the closure is in the open position.

Abstract: A vehicle plug for transmitting power and signals between a vehicle and a trailer includes a power conductor and one or more video signal conductors. The power conductor is configured to provide power to one or more electrical components of the trailer, the one or more electrical components of the trailer includes one or more video cameras. The one or more video signal conductors are configured to receive video signals from the one or more video cameras of the trailer.

Abstract: An electrical connector for connecting a tractor-trailer electrical cable to a truck tractor or a trailer electrical system includes a housing defining an interior space and having a mounting flange extending radially therefrom at a head end, at least one locking tab at the head end, and a wall dividing the interior space into a head end space and a foot end space, the wall having a plurality of holes in an array, a plurality of terminal pins secured against movement in the holes in the wall and extending from the foot end space into the head end space and a connector body having an outer wall configured to slide into the head end space of the housing.

Abstract: A power cable in-line power outlet (and associated method of use); said outlet including at least two sockets or slots for receiving power conducting pins of a plug of a powercord; said sockets or slots providing access to connector elements engaging with corresponding power conducting elements of said power cable; said power cable comprising an outer insulating sheath enclosing separate insulating sheaths of each said at least two power conducting elements; said power cable urged into cutting contact with said connector elements by rotation of a cam-lever from an initial non-contacting position to a position in which each of said power conducting elements of said power cable are in contact with said connector elements.

Abstract: An electrical trainline junction box formed from a housing having first and second opposing sides, an identification module positioned in the housing, and first and second receptacles positioned in each of the first and second opposing sides. The first and second receptacles have a plurality of electrical contacts arranged in a predetermined geometry so that only one possible orientation and electrical connection to trainline flanges is possible. The flanges include contact pins in inserts coupled to the flanges by sleeves. The outer surface of the inserts and the inner surface of the sleeves are keyed to allow only a single orientation of the inserts relative to the sleeves. The outer surface of the sleeves is shaped to allow only a single orientation of the sleeves relative to the flanges, thus ensuring that the proper electrical connection is made when the junction box is installed.

Abstract: A power connector for a vehicle includes a receptacle with a central opening that can receive a cylindrical connector. Within the central opening are a center contact and a number of electrical contacts arranged in a generally circular configuration around the center contact. The receptacle further includes an extension area on either side of the central opening that hold one or more additional electrical contacts. A pair of covers are configured to open to expose the additional contacts and the center contact with the surrounding circular configuration of contacts. With both covers open, all the contacts in the receptacle are exposed. In one embodiment, the receptacle includes a generally hexagonal faceplate surrounding the receptacle.

Abstract: It is aimed to provide a wiring harness protector fixing structure having a novel structure and capable of firmly positioning and fixing a protector to an end part of a wiring harness with excellent durability while improving waterproofness even if a mounting member such as a vehicle body panel is not present around. Engaging projections are formed on a flange portion of a metal bracket, whereas a wiring harness protector includes a first divided body and a second divided body to be assembled and integrated. By assembling the first and second divided bodies, the engaging projections of the metal bracket are engaged with engaging holes provided on flange wall portions of the first and second divided bodies, and contact surfaces and provided on at least parts of the flange wall portions come into contact with the flange portion of the metal bracket.

Abstract: A receptacle assembly includes a receptacle housing, a housing opening, a first receptacle connector, and a second receptacle connector. The receptacle housing includes a first cavity that extends from a first end to a central structure. The housing opening is defined at the first end. The first cavity and the housing opening are sized and shaped to enable insertion of a plug assembly constructed to comply with the Society of Automotive Engineers J2863 standard. The first receptacle connector includes a first portion that extends from the central structure into the first cavity. The second receptacle connector includes a second portion that extends from the central structure into the first cavity. The first and the second receptacle connectors are sized and are disposed such that they are configured to both be inserted into a single connector cavity of the plug assembly and such that they are electrically insulated from one another.

Abstract: A plug assembly includes a plug housing, six connector cavities, and a first and a second electrical connector. The plug housing is configured to be positioned in a receptacle assembly. The six connector cavities are defined in the plug housing and radially disposed around a connecting face in compliance with the Society of Automotive Engineers (“SAE”) J2863 standard. The first electrical connector is disposed and positioned with respect to a first connector cavity of the six connector cavities such that a first contact surface of the first electrical connector is contactable within the first connector cavity. The second electrical connector is disposed and positioned with respect to the first connector cavity such that a second contact surface of the second electrical connector is contactable within the first connector cavity and such that the second electrical connector is displaced relative to the first electrical connector and electrically insulated therefrom.

Abstract: An intelligent towing plug apparatus and software system that performs trailer electrical system testing, diagnostic and monitoring routines as well as towing vehicle plug testing utilizing wireless technology housed completely inside a towing adapter plug or attached towing plug compartment housing that interfaces with any smart phone or towing vehicle on-board computer system that has downloaded or preinstalled the intelligent towing plug mobile application or software compatible with the on-board computer's operating system.

Abstract: A power connector for a vehicle includes a receptacle with a central opening that can receive a cylindrical connector. Within the central opening are a center contact and a number of electrical contacts arranged in a generally circular configuration around the center contact. The receptacle further includes an extension area on either side of the central opening that hold one or more additional electrical contacts. A pair of covers are configured to open to expose the additional contacts and the center contact with the surrounding circular configuration of contacts. With both covers open, all the contacts in the receptacle are exposed.

Abstract: A first electrical wiring harness may be connectable to a vehicle and a second electrical wiring harness may be connectable to a snow/ice control device. A replaceable connector may be used between the first and second wiring harnesses so that it is easy to connect the wiring harnesses to each other and thereby electrically connect the snow/ice control device to the vehicle.

Abstract: A power connector for a vehicle includes a receptacle with a central opening that can receive a cylindrical connector. Within the central opening is a center contact and a number of electrical contacts arranged in a generally circular configuration around the center contact. The receptacle further includes an extension area on either side of the central opening that holds additional electrical contacts. A pair of covers are configured to open to expose the additional contacts and the center contact with the surrounding circular configuration of contacts. With both covers open, all the contacts in the receptacle are exposed.

Abstract: An electrical connector plug configured for use with tractor-trailers has an elongated housing having a hollow interior. A female electrical connector is coupled to a first end of the housing. An electrical cable is coupled to a second end of the housing. A ridge member is formed on a top surface of the housing. A collar is movable along a length of the housing. A locking mechanism is used to secure the collar at different lengths on the housing. A handle is hingly coupled to the collar to disengage the electrical connector plug from an electrical connector.

Abstract: The embodiments may include a connector device configured to be coupled to a cord-end connector of a connection cord of a first vehicle designed to be connected to a second vehicle capable of towing the first vehicle. The connector device is configured to provide access to a power source included within the first vehicle. In some examples, the connector device is configured to receive electrical power from the power source and re-route the electrical power back to the first vehicle for activating one or more components on the first vehicle. In some examples, the connector device may be configured to be coupled to at least one external device. The connector device may be configured to power or charge the at least one external device based on the provided access.

Abstract: An electrical connector plug configured for use with tractor-trailers has an elongated housing having a hollow interior. A female electrical connector is coupled to a first end of the housing. An electrical cable is coupled to a second end of the housing. A ridge member is formed on a top surface of the housing. A collar is movable along a length of the housing. A locking mechanism is used to secure the collar at different lengths on the housing. A handle is hingly coupled to the collar to disengage the electrical connector plug from an electrical connector.

Abstract: The hitch bar with swivel has a proximal portion that attaches removably to the conventional receiver hitch receptacle of a supporting vehicle and a distal portion for supporting an apparatus, e.g., spreader for distributing animal feed, etc., thereon. The distal bar portion is positioned to overlay the proximal portion and to place the supported apparatus close to the rear of the supporting vehicle during operations in order to reduce the lever arm and corresponding bending loads on the hitch receptacle. The distal portion of the bar may be swiveled clear of the rear of the vehicle to allow the rear door (tailgate, rear hatch, etc.) of the vehicle to be opened when the vehicle is stopped. The distal bar portion and apparatus supported thereon have a combined length preferably less than half the width of the vehicle, permitting the bar to be swiveled freely without extending laterally beyond the vehicle.

Abstract: In some embodiments, an apparatus includes a first substrate, a second substrate, a first coupler, and a second coupler. The first substrate is formed from a first material and includes an electrical pad. The second substrate is formed from a second material and includes an electrical pad. The first coupler is configured to mechanically couple the first substrate to the second substrate without a soldered connection. The second coupler includes a first end portion, configured to be soldered to the electrical pad of the first substrate, and a second end portion, configured to be soldered to the electrical pad of the second substrate. The second coupler configured to electrically couple the first substrate to the second substrate.

Abstract: An adapter for a trailer socket of a trailer coupling for coupling a trailer, wherein the adapter comprises a base body and a primary contact arrangement mounted thereon and comprising a plurality of primary contacts corresponding to a European or German standard, in particular seven primary contacts according to DIN 1724 or thirteen primary contacts according to ISO 11446, for establishing an electric connection to corresponding socket contacts of the trailer socket. The adapter comprises a secondary contact arrangement mounted on the base body with secondary contacts according to a US American standard, so that a trailer plug corresponding to the US American standard can be electrically connected to the secondary contact arrangement for the power supply of a trailer, the secondary contact arrangement and the primary contact arrangement being connected to one another via an electric connection arrangement.

Abstract: A trailer adapter to connect a master electrical system of a towing vehicle with a subservient electrical system of a towed vehicle having a light connectable thereto is disclosed. In particular, the trailer adapter may include a body having at least one electrical interface, where the at least one electrical interface is capable of electrically engaging the electrical system of the towing vehicle. The trailer adapter may also include a light source operatively coupled to the body, where the light source is selectively changeable between at least two operative modes capable of providing illumination.

Abstract: A trailer adapter to connect a master electrical system of a towing vehicle with a subservient electrical system of a towed vehicle having a light connectable thereto is disclosed. In particular, the trailer adapter may include a body having at least one electrical interface, where the at least one electrical interface is capable of electrically engaging the electrical system of the towing vehicle. The trailer adapter may also include a light source operatively coupled to the body, where the light source is selectively changeable between at least two operative modes capable of providing illumination.

Abstract: A GPU connection apparatus for an aircraft towing vehicle comprising a vehicle-mounted ground power unit (GPU). The GPU includes a GPU cable having a first end which is connected to the GPU and a second end which includes a GPU connector that is configured to be plugged into a GPU receptacle on an aircraft to be towed. The GPU connection apparatus includes an intermediate cable having a first end which comprises a cable plug and a second end which comprises a cable receptacle. The cable plug is configured to be plugged into the GPU receptacle. In addition, the cable receptacle is configured to receive the GPU connector. In use of the GPU connection apparatus, the cable plug is plugged into the GPU receptacle and the GPU connector is plugged into the cable receptacle to thereby electrically connect the aircraft to the GPU.

Abstract: Lamp plugs are disclosed, in which single intensity marker lamps that are desired to be flashed can be connected to a lamp driver employing an exclusive OR (XOR) logic circuit. In one embodiment, the lamp plug is an overmolded subsystem that is installed between the lamp and the lamp driver and allows the installer to use existing wire harnesses. In some embodiments, the overmolded subsystem is installed under a standard lamp where a plug is typically plugged in; therefore staying on the vehicle and not needing to be replaced with the lamp. Other embodiments are disclosed.

Abstract: A power supply system for use with a power source. The system includes a safety circuit panel with a wall receptacle and a power cable with a safety ejector subsystem. The safety ejector subsystem includes a latch connected to the wall receptacle connector of the power cable and a tension line connected to the latch and to the power cable. When the power cable is placed in tension, such as when the power cable has not been disconnected from the wall receptacle in the ordinary way, the safety ejector subsystem forces the disconnection of the power cable from the wall receptacle, thereby ensuring that no live wiring is exposed to the environment.

Abstract: A visual indicator assembly and adaptor for a trailer includes an control circuit, an input lamp plug electrically coupled to the control circuit, an output lamp plug electrically coupled to the control circuit, and an identification lamp plug electrically coupled to the control circuit. The input lamp plug is connectable to a trailer lamp plug of a lamp wiring harness of the trailer. The output lamp plug is connectable to a stop lamp of the trailer. The identification lamp plug is connectable to a corresponding identification lamp plug of the lamp wiring harness. The control circuit is configured to supply a first voltage signal to a plurality of lamps of the trailer in response to a power signal and supply a second voltage signal to the plurality of lamps in response to a brake signal. The second voltage signal is greater than the first voltage signal.

Abstract: An adapter for a trailer socket of a trailer coupling for coupling a trailer, wherein the adapter comprises a base body and a primary contact arrangement mounted thereon and comprising a plurality of primary contacts corresponding to a European or German standard, in particular seven primary contacts according to DIN 1724 or thirteen primary contacts according to ISO 11446, for establishing an electric connection to corresponding socket contacts of the trailer socket. The adapter comprises a secondary contact arrangement mounted on the base body with secondary contacts according to a US American standard, so that a trailer plug corresponding to the US American standard can be electrically connected to the secondary contact arrangement for the power supply of a trailer, the secondary contact arrangement and the primary contact arrangement being connected to one another via an electric connection arrangement.

Abstract: Certain embodiments of the present invention include a trailer hitch ball cover comprising an outer shell, an inner socket positioned within the outer shell, and a channel positioned adjacent a lower end of the inner socket, which substantially conforms to a trailer hitch ball and a trailer hitch ball neck. The outer shell may also comprise a first and second component that, when adjacent, form the inner socket and channel. The second component may be pivotally and/or releasably coupled to the first component. The outer shell may also be shaped to resemble human headgear, including a football helmet with facemask, chin strap, and face. Light sources may be positioned on an upper surface and a lower surface of the football helmet and a lower surface of the facemask for illumination.

Abstract: A wiring substrate connects an electrical system of a towed vehicle to an electrical system of a towing vehicle and includes a wiring connector configured to connect to a connector from a wiring harness of the towed vehicle, a first set of connections to connect to tail light assemblies in the towed vehicles, a second set of connections to connect to vehicle signal connections in the towed vehicle, the first and second sets of connections electrically coupled on the wiring substrate by at least one diode, and a third set of connections to connect to the towing vehicle.

Abstract: An integrated electrical connector comprises one or more terminals housed within a connector body. The connector body is configured and arranged to structurally join an auxiliary component to a host vehicle to which the integrated electrical connector is mechanically fixed and electrically coupled. The connector body is configured to facilitate electrically coupling electrical circuitry of the auxiliary component to the host vehicle. The connector body is configured to facilitate transmission of information among the auxiliary component and the host vehicle.

Abstract: A wiring substrate connects an electrical system of a towed vehicle to an electrical system of a towing vehicle and includes a wiring connector configured to connect to a connector from a wiring harness of the towed vehicle, a first set of connections to connect to tail light assemblies in the towed vehicles, a second set of connections to connect to vehicle signal connections in the towed vehicle, the first and second sets of connections electrically coupled on the wiring substrate by at least one diode, and a third set of connections to connect to the towing vehicle.

Abstract: A receptacle, comprising, a sleeve provided with a plurality of electrical connections, a terminal assembly that is electrically connected to a wiring interface, the wiring interface is provided with a seal that resists the entry of moisture, a container that is provided with a nose box and a retractable cover; and a circuit board assembly that includes a trace that carries electrical current.

Abstract: A wiring substrate connects an electrical system of a towed vehicle to an electrical system of a towing vehicle and includes a wiring connector configured to connect to a connector from a wiring harness of the towed vehicle, a first set of connections to connect to tail light assemblies in the towed vehicles, a second set of connections to connect to vehicle signal connections in the towed vehicle, the first and second sets of connections electrically coupled on the wiring substrate by at least one diode, and a third set of connections to connect to the towing vehicle.

Abstract: A connector-mounting construction has a bracket (10) with a mounting hole (12) and a to-be-locked plate (13) adjacent to the mounting hole (12). A connector (20) has an end configured for insertion through the mounting hole (12) and a flange (27) dimensioned contacting the rear surface of the bracket (10). An insertion groove (35) extends into the flange (27) parallel to a front surface of the flange (27). A metal lock (50) has an insertion portion (60) in the insertion groove (35) and a locking piece (51) projecting forward along a side of the connector (20). The locking piece (51) has at least one resiliently deformable locking projection (55) with a rearwardly facing locking surface (56) configured for locking edge forwardly facing edge (14) the to-be-locked plate (13) of the bracket (10) when the flange (27) of the connector (20) contacts the rear surface of the bracket (10).

Abstract: A trailer hitch apparatus for mechanically and electrically coupling a towing vehicle to a towed vehicle includes: a receiver and a trailer mount. The receiver has a receiver tube with an open end; a first electrical connector having a plurality of electrical contacts for attaching to the towing vehicle electrical system; and a second electrical connector having a plurality of electrical contacts electrically connected to the plurality of electrical contacts of the first electrical connector.

Abstract: A pin adapter to connect a master electrical system of a towing vehicle with a subservient electrical system of a towed vehicle is disclosed. In particular, the pin adapter allows for connection of a different master electrical interface with a different subservient electrical interface. The pin adapter may include a body, the body having a first electrical interface capable of electrically engaging the electrical system of the towing vehicle, and a second electrical interface capable of electrically engaging the electrical system of the towed vehicle. The second electrical interface may include a plurality of terminals. The pin adapter may further include a cover attached to the body, the cover capable of engaging only one of the plurality of terminals of the second electrical interface.