A docking station for receiving different types of seismic nodes, the docking station including a frame; a control module attached to the frame plural docking modules attached to the frame, wherein each docking module includes plural docking bays; a monitor attached to the frame and configured to display information about the plural docking modules; and a network connection device attached to the frame and configured to provide data transfer capabilities for each docking bay of the plural docking bays. The plural docking bays are configured to accept interchangeable ports that are compatible with the different types of seismic nodes.

A hand holdable light comprises: a light body having a forward portion, a rearward portion, and a central portion between the forward portion and to the rearward portion; a light source proximate a forward end; and a switch for energizing the light source. The rearward portion has a non-circular cross-section; the switch is on the forward portion; and the central portion has a recess opposite the switch. The light is holdable by a hand with a finger or thumb proximate the recess and the other of a finger or thumb proximate the switch. A battery assembly comprises: a battery housing for receiving and connecting a battery; an electrical switch on a first end of the battery housing; and a pattern of electrical contacts on a second end of the battery housing, wherein ones of the electrical contacts are connected to the battery.

A multiple unit charge cord assembly includes a housing coupled to a back side of an electronic device. A button movably coupled to the housing is urgeable into a releasing position. A first spool rotatably positioned within the housing is biased to rotate when the button is urged into the releasing position and the first spool is rotatable in a second direction. A second spool rotatably positioned within the housing is biased to rotate when the button is urged into the releasing position and the second spool is rotatable in a secondary direction. A first cord is wrapped around the first spool. The first cord is urgeable to rotate the first spool. A first plug is electrically coupled to the first cord. A second cord is wrapped around the second spool and is urgeable to rotate the second spool. A second plug is electrically coupled to the second cord.

A multiple unit charge cord assembly includes a housing coupled to a back side of an electronic device. A button movably coupled to the housing is urgeable into a releasing position. A first spool rotatably positioned within the housing is biased to rotate when the button is urged into the releasing position and the first spool is rotatable in a second direction. A second spool rotatably positioned within the housing is biased to rotate when the button is urged into the releasing position and the second spool is rotatable in a secondary direction. A first cord is wrapped around the first spool. The first cord is urgeable to rotate the first spool. A first plug is electrically coupled to the first cord. A second cord is wrapped around the second spool and is urgeable to rotate the second spool. A second plug is electrically coupled to the second cord.

A charger guard apparatus is described. The guard is equipped with a sabot, wall plate, and retaining cradle which, when assembled around a mobile device charger or any AC-powered male plug, is configured to prevent unwanted movement, damage, or loss to the charger or similar AC-powered device. The sabot is preferably composed of a top half and a bottom half which are configured to lock together around a male AC plug, including any AC/DC adapter or similar plug protrusion. The sabot is also configured to encapsulate any and all cable extending from an AC/DC adapter disposed within the sabot. The retaining cradle is configured to lock to the wall plate via retaining clips which are designed to mate with clip sockets of the wall plate.

A charger guard apparatus is described. The guard is equipped with a sabot, wall plate, and retaining cradle which, when assembled around a mobile device charger or any AC-powered male plug, is configured to prevent unwanted movement, damage, or loss to the charger or similar AC-powered device. The sabot is preferably composed of a top half and a bottom half which are configured to lock together around a male AC plug, including any AC/DC adapter or similar plug protrusion. The sabot is also configured to encapsulate any and all cable extending from an AC/DC adapter disposed within the sabot. The retaining cradle is configured to lock to the wall plate via retaining clips which are designed to mate with clip sockets of the wall plate.

A multifunctional wireless charger comprises a housing, inside which a circuit board, a portable power source connected therewith, and three or more charging coils are arranged; the charging coils are fixed on the inner side wall of the housing, on which is arranged a plug-in part connected with the circuit board; the plug-in part is further connected with an external power source for supplying power to the charging coils, so that an electronic product can be charged after being attached to the outer side wall of the housing. The charger is provided with more than three charging coils and can charge at least three electronic products with wireless charging function at the same time; moreover, the charger can be connected with a USB cable to charge electronic products without wireless charging function. Therefore, the charger is convenient to use without a USB cable.

A multifunctional wireless charger comprises a housing, inside which a circuit board, a portable power source connected therewith, and three or more charging coils are arranged; the charging coils are fixed on the inner side wall of the housing, on which is arranged a plug-in part connected with the circuit board; the plug-in part is further connected with an external power source for supplying power to the charging coils, so that an electronic product can be charged after being attached to the outer side wall of the housing. The charger is provided with more than three charging coils and can charge at least three electronic products with wireless charging function at the same time; moreover, the charger can be connected with a USB cable to charge electronic products without wireless charging function. Therefore, the charger is convenient to use without a USB cable.

A relay assembly comprises a vital relay used in a vital circuit and configured to be rack-installed in an equipment room in a railroad case or a railroad housing for providing a modular solid-state current-limiting. The relay assembly further comprises a plurality of vital relay contacts to which a current flow is restricted by a single supply solid-state current limiter. The relay assembly further comprises a relay socket base assembly coupled to the vital relay. The relay socket base assembly includes a relay socket base including a plurality of vital relay contact prongs, a plug assembly including a plurality of printed circuit board (PCB) mounted contact terminals, and a plurality of contact terminals that provide a connection between the plurality of vital relay contact prongs and the plurality of printed circuit board (PCB) mounted contact terminals. The relay assembly further comprises an ancillary electrical control module.

A hand holdable light comprises: a light body having a forward portion, a rearward portion, and a central portion between the forward portion and to the rearward portion; a light source proximate a forward end; and a switch for energizing the light source. The rearward portion has a non-circular cross-section; the switch is on the forward portion; and the central portion has a recess opposite the switch. The light is holdable by a hand with a finger or thumb proximate the recess and the other of a finger or thumb proximate the switch. A battery assembly comprises: a battery housing for receiving and connecting a battery; an electrical switch on a first end of the battery housing; and a pattern of electrical contacts on a second end of the battery housing, wherein ones of the electrical contacts are connected to the battery.