Abstract: A mechanical shunt for use in a socket of a string of lights resides in an otherwise typical lamp of a string of lights. The present shunt is a coiled spring shunt inserted in part into a hole formed in one of the electrical terminals in the socket so that it is cantilevered toward the opposing electrical terminal. The bulb holder carries a projection or a “tooth” on its bottom corner that is interposed between the first, cantilevered end of the spring terminal and the first electrical terminal when the holder is inserted into the socket. When the bulb and holder are removed, the spring shunt resiliently returns to engagement with the first electrical terminal.

Abstract: A mechanical shunt for use in a socket of a string of lights resides in an otherwise typical lamp of a string of lights. The present shunt is a pair of cantilevered portions from the electrical terminals inside the socket of a lamp in a string of lights. The portions touch and conduct electrical current when no lamp holder is in the socket but are separated by a button on the bottom of the lamp holder when the lamp holder is not in the socket. The cantilevered portions are formed in such a way that they rub together when opening, closing or when the socket undergoes expansion and contraction with changing temperature in order to prevent the buildup of corrosion on the teeth on the end of the cantilevered portion that would preclude their ability to make good electrical contact when needed.

Abstract: A modular HVDC converter system including a high voltage direct current network, and at least two DC/AC converters being connected in series to the HVDC network. Each of the DC/AC converters is arranged to provide AC to a separate AC load.

Abstract: A mechanical shunt for use in a socket of a string of lights resides in an otherwise typical lamp of a string of lights. The present shunt is a pair of cantilevered portions from the electrical terminals inside the socket of a lamp in a string of lights. The portions touch and conduct electrical current when no lamp holder is in the socket but are separated by a button on the bottom of the lamp holder when the lamp holder is not in the socket. The cantilevered portions are formed in such a way that they rub together when opening, closing or when the socket undergoes expansion and contraction with changing temperature in order to prevent the buildup of corrosion on the teeth on the end of the cantilevered portion that would preclude their ability to make good electrical contact when needed.

Abstract: A connector is provided with a plurality of terminal fittings (40), a shorting terminal (10) for shorting corresponding terminal fittings (40), and a housing (50) for accommodating the terminal fittings (40) and the shorting terminal (10). The shorting terminal (10) includes a contact piece (17) formed by bending and pushed at the time of insertion into the housing (50) and a support (21) formed by bending and held in contact with the contact piece (17) from a side opposite to a push-in direction into the housing (50). When a jig for pushing the shorting terminal (10) is pressed against a pushable surface (19) of the contact piece (17), the contact piece (17) can be prevented from being inclined in the push-in direction to be deformed by being supported by the support (21).

Abstract: A computer case with a function for fastening an interface card having an extension piece is provided. The computer case includes a positioning portion protruding from a surface of the computer case and having a connecting surface, and an interface card fastener mounted on the surface of the computer case and having a pressing surface pressing the extension piece of the interface card against the connecting surface.

Abstract: A device and method are provided that generate an early warning disconnect signal from an electrical connector supplying external power to a connected device. The connected device includes an early warning disconnect power management circuit, operational to generate power consumption control information in response to generation of the early warning disconnect signal from the electrical connector. In one example, the electrical connector includes a lock release mechanism and a signaling mechanism, the signaling mechanism is operationally coupled with the lock release mechanism and configured to generate the early warning disconnect signal from the electrical connector to the connected device prior to the lock release mechanism being in an unlocked state.

Abstract: A meter socket bypass disconnect device for disconnecting service using a bypass meter socket. The meter socket bypass disconnect device includes a housing, a disconnect system for interfacing with a meter socket, an indication system for indicating power phase and load status, and a switching system for moving the meter socket bypass disconnect device between an open load position and a closed load position. The disconnect system is further adapted to make load and break load on a bypass meter socket without the use of the meter bypass lever. The disconnect system, indication system, and switching system are containable or partially containable within the housing.

Abstract: A connector has an insulative housing, a plurality of terminals, switch terminal and a metal shell. The insulative housing has a base and a tongue. The base has a slit and an open slot communicating with the slit. The terminals are mounted in the base and the tongue of the tongue. The switch terminal is mounted in the slit and the open slot and has a mounting section, a contacting section and a soldering section. The mounting section is mounted securely in the slit. The contacting is mounted movably in the open slot. The metal shell covers the insulative housing. With the switch terminal, the connector is capable of activating and deactivating a circuit on a PCB for signal and power transmission depending whether a corresponding plug connector plugged into the connector.

Abstract: A coaxial switching jack with a pair of coaxial assemblies mounted within a housing having a pair of front openings. The coaxial assemblies each include a center conductor and a shell conductor. The center conductors are connected by a first spring and the shell conductors are connected by a second spring. Insertion of a coaxial cable connector within one of the front openings deflects the springs from the corresponding coaxial assembly and disconnects the center and shell conductors of the two assemblies. The jack may also be configured to provide an electrical connection between the center and shell conductors of the second coaxial assembly if a coaxial cable connector is inserted within the first coaxial assembly. The connection between the center and shell conductors of the second coaxial assembly may allow for selection of a desired electrical impedance.

Abstract: A card connector, comprising: an insulative housing having a base, first and second sidewalls extending upwardly from two opposite sides of the base, a card receiving space defined by the base and the first and second sidewalls; a plurality of contacts held within the housing, the contacts having contact sections extending beyond the base; a pair of detecting switches including a stable switch and a movable switch both around a region located backwardly of the first sidewall; and a flange-like plane portion on said first sidewall and essentially vertical to said first sidewall, a front guiding entrance defined by said flange-like plane portion, the first sidewall, the second sidewall and the base.

Abstract: A housing for an electrical plug has a plug tip, a cable receiving area adapted to receive a cable, a partition wall between the plug tip and the cable receiving area, a partition opening in the partition wall, and a gap opening in the partition wall. The portion opening extends between the plug tip and the cable receiving area and is adapted to receive an inner conductor element that is electrically connected to a cable inner conductor of the cable. The gap opening extends between the cable receiving area and the plug tip and the gap opening is adapted to receive a shield contact element that projects from the cable receiving area into the plug tip.

Abstract: The present invention relates to a lamp holder having two terminals arranged at the end of two wires of a light string and a light bulb preassembled in a lamp base. Electrodes from the lamp and base make contact with the terminals as the lamp is inserted into the inside of the lamp holder. A bulge is arranged at on position within the lamp base. An electrically conductive spring is arranged in the inside of the lamp holder having two feet corresponding to the positions of the terminals. Each foot is in contact with one of the terminals when the bulb and base are out of the holder, but one foot is displaced by the bulge on the lamp base to provide electrical connection through the lamp rather than the spring when the lamp is inserted into the holder.

Abstract: A connector has an insulative housing, a plurality of terminals, switch terminal and a metal shell. The insulative housing has a base and a tongue. The base has a slit and an open slot communicating with the slit. The terminals are mounted in the base and the tongue of the tongue. The switch terminal is mounted in the slit and the open slot and has a mounting section, a contacting section and a soldering section. The mounting section is mounted securely in the slit. The contacting is mounted movably in the open slot. The metal shell covers the insulative housing. With the switch terminal, the connector is capable of activating and deactivating a circuit on a PCB for signal and power transmission depending whether a corresponding plug connector plugged into the connector.

Abstract: A modular apparatus for data communication between a distribution network and a residential network is disclosed. The apparatus has a first device adapted to interface a distribution network, at least one second device adapted to interface a residential network and to be mechanically and electrically connected to the first device, and at least one interconnecting lock adapted to keep the first device and the at least one second device firmly secured to each other and to activate electrical supply between the first device and the at least one second device.

Abstract: A memory card connector includes an insulative housing and a plurality of contacts retained in the insulative housing and a pair of switch contacts. The insulative housing defines a card receiving cavity for receiving a memory card. The pair of switch contacts are of a first status when the memory card is located in a deepest insertion position of the card receiving cavity, and the pair of switch contacts are of a second status different from the first status when the memory card is located in a final working position.

Abstract: An electronic endoscope is detachably connected to a processor via a first control connector and a second control connector. Contacts provided at side ends of the flat-shaped second control connector are connected to a CPU. The CPU detects start of removal of the first control connector in response to a change in voltage of one of ports, to which the contacts are connected, from low to high. When the CPU detects the start of the removal, drive signals from a CCD driver to a CCD is stopped. Then, power supply from a power supply section to the CCD is stopped.

Abstract: A receptacle that can detect the insertion and extraction of a plug includes: a receptacle shell having formed therein a plug insertion port into which the plug is inserted and from which the plug is extracted; a receptacle body provided inside the receptacle shell; a movable contact that is installed at a base portion of the receptacle body, the base portion faces a distal end of the plug inserted into the plug insertion port, and that is deformed elastically when pushed by the plug; and an immovable contact that is installed at the base portion, is normally spaced from the movable contact, and comes into contact with the movable contact when the movable contact is pushed by the plug and elastically deformed. The receptacle that can conform to the HDMI standard can be realized without adding any modification to main components relating to mating with a plug.

Abstract: An electrically safe receptacle that in it's normal quiescent state will not have electrical current flow. Said electrically safe receptacle will be equipped with normally-open switches on one or both female conductors that are controlled by a strategically placed sensor to detect the insertion of a male plug. Detection of the male plug insertion will signal the normally open switches to close the circuit pathway and allow for the flow of electrical current to the device permitting normal operation. Insertion of a foreign conductive device such as a hair pin, knife blade, or metallic tool in one or both female conductors will fail to activate the sensor and thereby reduce or eliminate the possibility of accidental electrocution by preventing the flow of electrical current.

Abstract: A coaxial switching jack with a pair of coaxial assemblies mounted within a housing having a pair of front cable connection locations is disclosed. The coaxial assemblies each include a center conductor and an outer shield conductor. The center conductors are connected by a first spring and the shell conductors are connected by a second spring. Insertion of a coaxial cable connector within one of the front cable connection locations deflects the springs from the corresponding coaxial assembly and disconnects the center and shell conductors of the two assemblies. The jack may also be configured to provide an electrical connection between the center and shell conductors of the second coaxial assembly if a coaxial cable connector is inserted within the first coaxial assembly. The connection between the center and shell conductors of the second coaxial assembly may be through a resistor assembly allowing for selection of a desired electrical impedance.

Abstract: Battery charging assemblies for children's ride-on vehicles, and children's ride-on vehicles that include the same. The charging assemblies may include a power adapter that is adapted to be electrically connected to a power source, a charger cord, and a charging connector that is adapted to electrically interconnect with the rechargeable battery of the ride-on vehicle. The battery charging assemblies further include at least one protective element to prevent or significantly reduce backflow current from the battery into the battery charging assembly. The protective element may be located in the charging probe or at any point along the charger cord of the battery charging assembly. The protective element may include any suitable current-limiting or current-interrupting device. Examples of such current limiting devices include, without limitation, a fuse, a circuit breaker, an anti-backflow diode, and a resettable fuse such as a positive temperature coefficient resistor (PTC resistor).

Abstract: A card connector is mounted on a PCB and has an insulative housing, a plurality of terminals, a pair of hook assemblies and a tray. The terminals are mounted on the insulative housing. The hook assemblies are mounted on the insulative housing and each hook assembly has a hook and a sheath. The sheath covers the hook. The tray is mounted slidably on the insulative housing and has two slides and two positioning notches defined respectively in the slides and selectively engaged respectively with sheathes on the hooks. The sheathes prevent the hooks from wearing the tray and prevent the slides from deviating.

Abstract: An audio jack connector adapted for mating with a plug connector which has an insulating loop thereon includes a dielectric housing, a plurality of signal terminals, and a set of switch terminals. The dielectric housing defines an inserting hole therethrough. The signal terminals are received in the dielectric housing. The set of switch terminals include a first switch terminal and a second switch terminal disposed in the dielectric housing. The second switch terminal has a contact portion extending into the inserting hole. When the plug connector is fully inserted into the inserting hole, the signal terminals are electrically connected with the plug connector, and the contact portion of the second switch terminal is against and pushed outwardly by the insulating loop of the plug connector to make the second switch terminal electrically connected with the first switch terminal.

Abstract: A connector for an electric power supply device is disclosed. The connector is arranged to mate a corresponding connector at an apparatus to which the electrical power supply device is arranged to supply electrical power, wherein the connector comprises at least one electrical contact; a housing having a first part arranged grippable by a user when the user connects or disconnects the connector to the device, and a second part slidably arranged with the first part; at least one electrical contact arranged on one of said first or second part, wherein a first force for connecting the at least one electrical contact to the corresponding mating connector is higher than a second force for causing sliding between said first and second parts; and a switch arranged to be actuated based upon relative positions of said first and second parts, wherein said switch is arranged to electrically control connection and disconnection of an electrical power input of the electric power supply device.

Abstract: The present invention relates to the field of enhanced electrical receptacles (outlets) and plugs. It is comprised of a system to identify and validate the user with acknowledgement of authorization. Power is supplied to authorized users and their power usage can be monitored, stored, and communicated to a remote device. Said usage can be used to charge the user a fee or to assess work efficiency.

Abstract: A connector block arrangement includes a first connector block housing having a row of first contacts, a second connector block housing having a row of second contacts in engagement with the first contacts when the connector block housings are in a connected condition, a conductive jumper device having a base portion and a plurality of resilient fingers normally connecting together a group of the second contacts, and an electrically-insulated code device carried by one of the housings for selectively disengaging from the jumper device at least one of the contacts of the second contact group. The code device has a planar generally comb-like configuration including a base portion arranged in an opening contained in either one of the connector block housings, and at least one code bar portion operable to separate a resilient finger of the jumper device from the corresponding contact to be disengaged.

Abstract: An electrical connector mounted on a printed circuit board including an insulative housing (1) provided with a receiving cavity (16) and a number of passageways (121), and a number of contacts retained in the housing. The contacts have a first contact (21) including a first base portion (210) and a first soldering portion (213) extending downwardly from the first base portion, a second contact (22) having a second base portion (220) and a second soldering portion (223) extending downwardly from the second base portion. The first soldering portion includes a first protrusion portion (216) projecting from only one side edge thereof along a first direction. The second soldering portion includes a second protrusion portion (226) projecting from only one side edge thereof along a second direction opposite to the first direction. The first protrusion portion and the second protrusion portion together form a latch portion for fixing with the printed circuit board.

Abstract: Electrical circuit quick connection and disconnection system with automatic short circuit of current transformer secondaries and similar devices, consists of a multipole plug (6) and receptacle (11) system with automatic short-circuit capacity between the poles (7, 12) upon initiation of disconnection between the plug (6) and the receptacle (11), without incurring in the temporary opening of the circuit, for application in current transformer (3) secondary circuits (3B) and other applications requiring the same characteristics. The system is equipped with a number N of paired poles (7, 12), being that each pair of poles (7, 12) is connected to a CT (3) secondary (3B), therefore handling the connection of N CT (3) secondaries (3B).

Abstract: An electrical card connector (100) to be mounted on a printed circuit board and includes: an insulative housing (1) having a first receiving cavity (14) for receiving a first card (300) and a second receiving cavity (13) for receiving a second card (200), and a number of passageways (132), and a number of contacts retained in the passageways respectively. The contacts include a number of first contacts (3) each having a first contacting portion (32) for contacting with the first card, a first soldering portion (35) to be soldered onto the printed circuit board and a first base portion (30) connecting with the first contacting portion and the first soldering portion; a plurality of second contacts (2) spaced from the first contacts, and defining a second base portion (21) and a second contacting portion (22) extending forwardly from the second base portion to contact with the second card.

Abstract: An electrical connector includes an insulating housing defining a receiving cavity surrounded by opposite sidewalls and a top and bottom wall connecting with the sidewalls, a plurality of contacts retained on the housing, a couple of switching terminals including a first terminal and a second terminal, and a shell surrounding the insulating housing. One of said side wall defines two slots. The two terminals are received and retained in said two slots and mates with each others when a complementary connector is inserted into the receiving cavity. The first terminal defines a touching tab contacting with the shell.

Abstract: A plug for a socket of an airbag is disclosed. The plug has a position assurance member having a movable member and a static member and the position assurance member is movable between a transport position and an end position by moving the movable member in relation to the static member. The plug also has a shorting contact, a flow of current in the shorting contact being possible in the transport position while the flow of current is not possible in the end position. The end position is attainable only when the plug is inserted into the socket.

Abstract: A connector 8 includes a plug element 3, a short-circuiting element 4, and a latching element 50 to be latched at a first latching position and a second latching position. When the latching element 50 is at the second latching position, a short-circuiting piece 4m moves to a non-short-circuit position. The latching element 50 has latch portions 52 formed in a projecting manner, and the short-circuiting element 4 has latch receiving portions 41a. In a state where the plug element 3 is inserted into the socket element 2i, when the latching element 50 is at the second latching position, the latch portions 52 and the latch receiving portions 41a engage with each other to prevent separation between the socket element 2i and the plug element 3.

Abstract: Embodiments may include connectors with discharge elements integrated into the connectors to interconnect conductors of a cable to attenuate or discharge an electrostatic charge built up on the conductors. In some embodiments, the conductors are momentarily connected to ground as the connector couples with another connector to interconnect a cable with, e.g., a computer. In further embodiments, the discharge elements interconnect the conductors of a cable to redistribute an electrostatic charge and thereby minimize the impact of a discharge when the cable couples with an electronic system such as a computer. Another embodiment comprises a male connector with discharge elements, which ground conductors of the cable as the cable is being inserted into the connector. The discharge elements are pushed out of the way of the conductors as the conductors couple with the connector.

Abstract: A socket with a detection function includes a housing; a plurality of metal spring pins installed side by side in the housing; a first detection pin formed on a side of the plurality of metal spring pins and coupled to a system ground; and a second detection pin formed on another side of the plurality of metal spring pins and coupled to a pull up resistor for providing a high voltage level for the second detection pin. The second detection pin includes an elastic metal arm extending toward the first detection pin and formed on the top of the first detection pin. A first metal spring pin is deflected to press down the elastic metal arm of the second detection pin for contacting the first detection pin when a phone cable plug is inserted into the socket.

Abstract: An electrical card connector (100) for insertion of an electrical card (200) comprises an insulative housing (1), a plurality of terminals (2) coupled to the insulative housing and a first shell (4). The insulative housing comprises a base portion (11), an arm portion (12) extending from a lateral side of the base portion, and a receiving space (13) formed between the base portion and the arm portion to receive the electrical card. The terminals are coupled to the base portion and extend into the receiving space for electrical connection to the electrical card. The first shell (4) is integrally molded with the insulative housing (1) and covers the insulative housing.

Abstract: Retention of replaceable subassemblies, with automatic forced disconnection. The invention relates to a terminal module 1 for locking a subassembly or a PS module 2 on the terminal module in a way that satisfies safety requirements. The subassembly 2 is hinged onto the terminal module 1. The terminal module 1 has a sliding catch 3 for fixing the subassembly 2 on the terminal module 1. Disconnection of electrical contacts is guaranteed during the hinging-on.

Abstract: An electronic device with switch module includes a first body and a second body which pivot together to be closed. The first body has a buckling member. The second body has a catching member, an actuating member, an ejecting member, and a through hole disposed correspondingly. When the first body is closed on the second body, the buckling member passes through the through hole, presses in the ejecting member, and is caught by the catching member, so as to maintain a closed state of the first and the second bodies. When the actuating member is actuated, the actuating member pushes the catching member to release the buckling member and the ejecting member pushes the buckling member out of the through hole, such that a gap is formed between the first and the second bodies.

Abstract: A memory card connector mountable onto a printed circuit board for receiving at least one kind of memory card includes an insulating housing and a shielding shell covering the insulating housing to define a receiving chamber therebetween. The shielding shell has a contacting end at a side thereof. A detecting terminal is received in a side of the insulating housing, the detecting terminal has a soldering portion adapted for electrically connecting to the printed circuit board, a resilient conductive portion adjacent to the contacting end of the shielding shell, and a resilient contact portion extending towards the receiving chamber and capable of moving outwards resiliently to push the resilient conductive portion to electrically contact the contacting end of the shielding shell.

Abstract: A card connector has: a connector housing which is formed therein so as to be enclosed on three sides by an opposed pair of first and second frames and a third frame that links the end portions of the first and second frames; and an open-close cover. The open-close cover has a sensing member that senses the installation status of the card, and a cover locking mechanism that latches onto either the first or the second frame and locks the open-close cover in the closed state. The rear of the open-close cover is rotatably pivoted on the first and second frames. The card's installation status is sensed by closing the open-close cover and positioning the sensing member at the rear end portion of the card; and the open-close cover is retracted, being thereby locked in the closed state via the cover locking mechanism.

Abstract: A card connector has: a connector housing 2 constituted of electrically insulating bodies in which is formed a bottomed card holding cavity that is open at the front and top and is enclosed on three sides by a pair of first and frames and by a third frame that links one pair of end portions of the first and second frames; contact terminals 5 and 6 deployed inside the connector housing's card holding cavity; and an open-close cover 3 that covers the openings of the connector housing's card holding cavity. The rear of the open-close cover is rotatably pivoted on the first and second frames. Thanks to such structure, the interior of the card holding cavity can be examined when a card is installed, so that a card connector is provided in which cards of differing size and thickness, etc., can be installed reliably and in a simple manner.

Abstract: The electric plug connector is intended to be used especially for explosion-proof areas. It comprises a plug and a socket. The latter includes in a housing a socket insert which, in the inserted condition of the plugs, is supported such that it is rotatable between an off position and an on position. In said socket a locking means is supported such that it is adjustable between a locking position and a release position, said locking means being provided with at least one coding projection which, in the condition in which the plug is inserted in the socket, projects into a complementary coding aperture and releases the locking means, whereupon the socket can be switched from said off position to said on position.

Abstract: An electric socket includes a base provided with two electrodes and conduction members beside the electrodes. Each of the conduction members is connected to a power source and keeps a predetermined distance away from the electrodes. An upper casing has two apertures corresponding to the electrodes respectively. A power control unit includes a control block beside the conduction members and a control shaft having an end connected to the control block and an opposite end extended out of the upper casing. Two shutter members are pivoted on the base to shut the aperture. When a plug is inserted into the electric socket of the present invention, prongs of the slug will move away the shutter first, and then press the control shaft to make the control block bending the conduction members toward the electrodes that makes the conduction members contacting the electrodes respectively.

Abstract: Disclosed herein is an electrical connector. The electrical connector includes a housing, at least two male contacts, and a shorting member. The at least two male contacts are mounted within the housing. The shorting member is connected to the housing. The shorting member includes a single loop section and an aperture. The single loop section is adapted to contact the at least two male contacts when the electrical connector is disengaged from a mating electrical connector. The single loop section is adapted to be spaced from the at least two male contacts when the electrical connector is engaged with the mating electrical connector. The at least two male contacts extend through the aperture.

Abstract: A secure socket apparatus includes a socket unit, a power supply unit and an overload-avoid unit. The socket unit includes at least one socket for receiving a plug of an electronic device. The power supply unit includes a switch module connected to the socket, at least one comparing element connected to the switch module and a sensing module connected to the switch module. The overload-avoiding unit is connected to the comparing element. The overload-avoiding unit can be connected to the mains so that electricity can be provided to the electronic device from the mains through the socket apparatus.

Abstract: A coaxial switching jack with a pair of coaxial assemblies mounted within a housing having a pair of front openings. The coaxial assemblies each include a center conductor and a shell conductor. The center conductors are connected by a first spring and the shell conductors are connected by a second spring. Insertion of a coaxial cable connector within one of the front openings deflects the springs from the corresponding coaxial assembly and disconnects the center and shell conductors of the two assemblies. The jack may also be configured to provide an electrical connection between the center and shell conductors of the second coaxial assembly if a coaxial cable connector is inserted within the first coaxial assembly. The connection between the center and shell conductors of the second coaxial assembly may allow for selection of a desired electrical impedance.

Abstract: The invention concerns a microswitch for a coaxial plug and socket connector with a contact spring and a mating contact, wherein the contact spring is a cross-shaped leaf spring.

Abstract: A cross-connect module is disclosed herein. The cross-connect module includes a housing having a front end and a rear end. The rear end includes a rear wall defining connector mounting openings. First and second switching jacks are positioned adjacent the front end of the housing. Rear connectors mount within the connector mounting openings. Cables electrically couple the rear connectors to the switching jacks. A tracer lamp circuit including a power connector and a pin jack are also provided. In depicted embodiments, the rear connectors, the pin jack and the power connector are secured to the rear wall of the housing by snap-fit connections. The depicted module also includes a front cover having structure for providing snap-fit connections with the switching devices.

Abstract: A system for delivering broadband service, including standard telephone service and telephone/DSL service, to a subscriber. The system includes a pair gain system and a service distribution system. In some embodiments, the service distribution system is located such that the standard telephone service and telephone/DSL service are routed from the service distribution system without being routed through a cross-connect system. In other embodiments, the functionality of a cross-connect system is incorporated into the service distribution system. The service distribution systems include terminating modules and switching modules. In some embodiments, the switching modules include protector plugs that protect the system from over-voltages and/or over-currents, and provides upstream and downstream diagnostic testing.

Abstract: A coaxial connector, comprising an insulating housing, a movable terminal, a stationary terminal, and a shielding casing. The movable terminal and the stationary terminal are respectively connected in the insulating housing. The insulating housing comprises an insulating covering and an insulating base, wherein the insulating covering and the insulating base together define a containment space. The containment space may provide an open space for assembly of the stationary terminal and the movable terminal. The shielding casing substantially covers the insulating housing and provides the insulating housing with shielding protection.

Abstract: A system for warning against forgetting to pull out an information recording medium can improve working efficiency upon mounting a navigation unit and an on-board radio unit onto a vehicle, and notify a user of an alarm that causes no uncomfortable feeling, and is still inexpensive to manufacture. A drive unit switch detects when a control part is turned off, also detects, through a communication line, a residual state of an IC card with respect to an on-board device, and notifies the result of the detection to a the voice generation part. When the IC card is “absent” in the on-board device, the control part interrupts the supply of power to the on-board device through the on-board device power supply line.